4110J64_DetailedBook GP Series/GP328plus GP338plus GP338XLS Detailed Service Manual 6804112J28 G GP328plus

User Manual: -GP Series/GP328plus GP338plus GP338XLS Detailed service manual 6804112J28-G

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GP328 Plus/GP338 Plus/GP338 XLS
Portable Radios
Detailed Service Manual
6804112J28-G

December, 2004

Computer Software Copyrights
The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form, the
copyrighted computer program. Accordingly, any copyrighted Motorola computer programs contained in the Motorola
products described in this manual may not be copied or reproduced in any manner without the express written permission
of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license under the copyrights, patents or patent applications of Motorola, except for the
normal non-exclusive royalty-free license to use that arises by operation of law in the sale of a product.

2000, 2001, 2002, 2003, 2004 by Motorola, Inc.
Motorola Technology Sdn. Bhd. (Co. No. 455657-H)
Plot 2, Bayan Lepas Technoplex Industrial Park,
Mukim 12, S.W.D.,
11900 Penang, Malaysia
Printed in Malaysia
December, 2004

i

DOCUMENT HISTORY
The following major changes have been implemented in this manual since the previous edition:

Edition

Description

Date

6804112J28-O

Initial edition

Sept. 2000

6804112J28-A

Updated Safety Information (June 2001).
Updated controller board for VHF and UHF Band 1.
Updated RF board for VHF and UHF Band 2.

Aug. 2001

6804112J28-B

Added Display Model (GP338 Plus) information.

Sept, 2001

6804112J28-C

Section 5A, 5B, 5C and 5D:
Added new board diagrams, schematics and parts
lists to VHF, UHF Band 1, UHF Band 2 and
330MHz sections.

Mar, 2002

6804112J28-D

Document History Section added.

June, 2003

Changed to Safety Information (Feb. 2002).
Section 1: Introduction
Updated CGISS Indirect Business Customer Help
Desk information.
Section 5A, 5B and 5C: Model Chart & Test Specs
Added 4 Channel information to VHF Band, UHF
Band 1 and UHF Band 2 sections.
6804112J28-E

Added GP338 XLS model.
Changed to latest Safety Information (Feb. 2002)
Corrected flex diagrams of GP328 Plus and GP338
Plus.

May, 2004

6804112J28-F

Updated Safety Information (Feb. 2002)
Updated controller board (PCB no.8404051G07/
G08) to 8404051G09 rev H.

Sept, 2004

6804112J28-G

Added controller board (PCB no.8404051G07/G08)

Dec, 2004

ii

THIS PAGE INTENTIONALLY LEFT BLANK

iii

Safety Information
Product Safety and RF Energy Exposure for Portable Two-Way Radios
The information provided in this document supersedes the general safety information published
prior to February 2002.
BEFORE USING THIS RADIO, READ THE FOLLOWING INFORMATION WHICH CONTAINS
IMPORTANT OPERATING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS
AND CONTROL INFORMATION AND OPERATIONAL INSTRUCTIONS FOR COMPLIANCE WITH
RF ENERGY EXPOSURE LIMITS IN APPLICABLE NATIONAL AND INTERNATIONAL
STANDARDS. ALSO READ THE OPERATIONAL INSTRUCTIONS FOR SAFE USAGE. FOR
RADIOS THAT HAVE BEEN APPROVED AS INTRINSICALLY SAFE, READ THE INSTRUCTIONS
AND INFORMATION ON INTRISINIC SAFETY ON PAGE vii.

RF Energy Exposure Awareness and Control Information and
Operational Instructions for Occupational Use
NOTICE: This radio is intended for use in occupational/controlled conditions where users
have full knowledge of their exposure and can exercise control over their exposure
to meet the occupational limits in FCC and International standards. This radio
device is NOT authorized for general population or consumer use.
This two-way radio uses electromagnetic energy in the radio frequency (RF) spectrum to provide
communications between two or more users over a distance. It uses radio frequency (RF) energy or
radio waves to send and receive calls. RF energy is one form of electromagnetic energy. Other
forms include, but are not limited to, sunlight and x-rays. RF energy, however, should not be
confused with these other forms of electromagnetic energy, which when used improperly, can cause
biological damage. Very high levels of x-rays, for example, can damage tissues and genetic
material.
Experts in science, engineering, medicine, health, and industry work with organizations to develop
standards for safe exposure to RF energy. These standards provide recommended levels of RF
exposure for both workers and the general public. These recommended RF exposure levels include
substantial margins of protection.
All Motorola two-way radios are designed, manufactured, and tested to ensure they meet
government-established RF exposure levels. In addition, manufacturers also recommend specific
operating instructions to users of two-way radios. These instructions are important because they
inform users about RF energy exposure and provide simple procedures on how to control it.
Please refer to the following websites for more information on what RF energy exposure is and how
to control your exposure to assure compliance with established RF exposure limits:
http://www.fcc.gov/oet/rfsafety/rf-faqs.html
http://www.osha.gov/SLTC/radiofrequencyradiation/index.html

Federal Communication Commission (FCC) Regulations
The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for portable
two-way radios before they can be marketed in the U.S. When two-way radios are used as a
consequence of employment, the FCC requires users to be fully aware of and able to control their
exposure to meet occupational requirements. Exposure awareness can be facilitated by the use of a
product label directing users to specific user awareness information. Your Motorola two-way radio

iv

has a RF exposure product label. Also, your Motorola user manual, or separate safety booklet
includes information and operating instructions required to control your RF exposure and to satisfy
compliance requirements.

Compliance with RF Exposure Standards
Your Motorola two-way radio is designed and tested to comply with a number of national and
International standards and guidelines (listed below) for human exposure to radio frequency
electromagnetic energy. This radio complies with the IEEE (FCC) and ICNIRP exposure limits for
occupational/controlled RF exposure environments at operating duty factors of up to 50% talk-50%
listen and is authorized by the FCC for occupational use only.
In terms of measuring RF energy for compliance with these exposure guidelines, your radio
generates measurable RF energy only while it is transmitting (during talking), not when it is receiving
(listening) or in standby mode.
NOTE:The approved batteries, supplied with this radio, are rated for a 5-5-90 duty factor (5% talk5% listen-90% standby) even though this radio complies with FCC occupational exposure
limits and may operate at duty factors of up to 50% talk.
Your Motorola two-way radio complies with the following RF energy exposure standards and
guidelines:
•
•
•
•
•
•
•

United States Federal Communications Commission, Code of Federal Regulations; 47CFR part
2 sub-part J
American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers
(IEEE) C95. 1-1992
Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition
International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998
Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radiofrequency Electromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999
Australian Communications Authority Radiocommunications (Electromagnetic Radiation Human Exposure) Standard, 2003
ANATEL ANNEX to Resolution No. 303 of July 2, 2002 "Regulation of limitation of exposure to
electrical, magnetic and electromagnetic fields in the radio frequency range between 9 KHz and
300 GHz" and "Attachment to resolution # 303 from July 2, 2002"
"Additional Requirements for SMR, Cellular and PCS Product Certification"

RF Exposure Compliance and Control Guidelines and Operating
Instructions
To control your exposure and ensure compliance with the occupational/controlled environment
exposure limits, always adhere to the following procedures.

Guidelines:
•
•
•

Do not remove the RF Exposure Label from the device.
User awareness instructions should accompany device when transferred to other users.
Do not use this device if the operational requirements described herein are not met.

Operating Instructions
•

Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the PushTo-Talk (PTT) button. To receive calls, release the PTT button. Transmitting 50% of the time, or
less, is important because this radio generates measurable RF energy exposure only when
transmitting (in terms of measuring for standards compliance).

v

•
•
•

•

Hold the radio in a vertical position in front of the face with the microphone (and
other parts of the radio including the antenna) at least one inch (2.5 centimeters)
away from the nose or lips.
Antenna should be kept away from the eye. Keeping the radio at a proper distance
is important since RF exposures decrease with increasing distance from the
antenna.
When worn on the body, always place the radio in a Motorola-approved clip, holder, holster,
case, or body harness for this product. Using approved body-worn accessories is important
because the use of non-Motorola-approved accessories may result in exposure levels, which
exceed the FCC occupational/controlled environment RF exposure limits.
If you are not using a body-worn accessory and are not using the radio in the intended use position in front of the face, ensure the antenna and the radio are kept at least one inch (2.5 centimeters) from the body when transmitting. Keeping the radio at a proper distance is important
because RF exposures decrease with increasing distance from the antenna.

Approved Accessories
•
•

Use only Motorola-approved supplied or replacement antennas, batteries, and accessories. Use
of Non-Motorola approved antennas, batteries, and accessories may exceed the FCC (IEEE)
and ICNIRP RF exposure guidelines.
For a list of Motorola-approved accessories, visit the following website, which lists approved
accessories for your radio model: http://ap.cgiss.motorola.com/AAD/index.html.

Additional Information
For additional information on exposure requirements or other training information, visit
http://www.motorola.com/rfhealth.

Electromagnetic Interference/Compatibility
NOTE:Nearly every electronic device is susceptible to electromagnetic interference (EMI) if
inadequately shielded, designed, or otherwise configured for electromagnetic compatibility.

Facilities
To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility
where posted notices instruct you to do so. Hospitals or health care facilities may be using
equipment that is sensitive to external RF energy.

Aircraft
When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be
in accordance with applicable regulations per airline crew instructions.

Medical Devices
Pacemakers
The Advanced Medical Technology Association (AdvaMed) recommends that a minimum separation
of 6 inches (15 centimeters) be maintained between a handheld wireless radio and a pacemaker.
These recommendations are consistent with those of the U.S. Food and Drug Administration.
Persons with pacemakers should:
•

ALWAYS keep the radio more than 6 inches (15 centimeters) from their pacemaker when the
radio is turned ON.

vi

•
•
•

Not carry the radio in the breast pocket.
Use the ear opposite the pacemaker to minimize the potential for interference.
Turn the radio OFF immediately if there is any reason to suspect that interference is taking place.

Hearing Aids
Some digital wireless radios may interfere with some hearing aids. In the event of such interference,
you may want to consult your hearing aid manufacturer to discuss alternatives.

Other Medical Devices
If you use any other personal medical device, consult the manufacturer of your device to determine
if it is adequately shielded from RF energy. Your physician may be able to assist you in obtaining this
information.

Use of communication devices while driving
Always check the laws and regulations on the use of radios in the areas where you drive.
•
•
•

Give full attention to driving and to the road.
Use hands-free operation, if available.
Pull off the road and park before making or answering a call, if driving conditions or regulations
so require.

Operational Warnings
For vehicle with air bags
Refer to vehicle manufacturer's manual prior to installation of electronic equipment to avoid
interference with air bag wiring.
Do not place a portable radio in the area over an air bag or in the air bag deployment area.
Air bags inflate with great force. If a portable radio is placed in the air bag deployment area
and the air bag inflates, the radio may be propelled with great force and cause serious injury
to occupants of the vehicle.
Potentially Explosive Atmospheres
(Explosive atmospheres refers to hazard classified locations that may contain hazardous
gas, vapors, or dusts.)
Turn off your radio prior to entering any area with a potentially explosive atmosphere unless
it is a portable radio type especially qualified for use in such areas as Intrinsically Safe (for
example, Factory Mutual, CSA, UL, or CENELEC).
Do not remove, install, or charge batteries in such areas. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or even death.
The areas with potentially explosive atmospheres referred to above include fueling areas
such as below decks on boats, fuel or chemical transfer or storage facilities, and areas
where the air contains chemicals or particles such as grain, dust or metal powders. Areas
with potentially explosive atmospheres are often, but not always, posted.
Blasting Caps And Blasting Areas
To avoid possible interference with blasting operations, turn off your radio when you are
near electrical blasting caps, in a blasting area, or in areas posted: "Turn off two-way radio."
Obey all signs and instructions.

vii

Operational Cautions
Antennas
Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into contact
with your skin, a minor burn can result.

Batteries
All batteries can cause property damage and/or bodily injury, such as burns, if a conductive material
such as jewelry, keys, or beaded chains touches exposed terminals. The conductive material may
complete an electrical circuit (short circuit) and become quite hot. Exercise care in handling any
charged battery, particularly when placing it inside a pocket, purse, or other container with metal
objects.

Intrinsically Safe Radio Information
The Intrinsically safe approval unit refers to a product that has been approved as intrinsically safe by
an approval agency (for example FM Approvals, CSA, UL, or Cenelec) and certifies that a particular
product meets the Agency's applicable intrinsic safety standards for specific types of hazardous
classified locations. A portable radio that has been approved for intrinsic safety will have Approval
label attached to the radio to identify the unit as being Approved for specified hazardous
atmospheres. This label specifies the hazardous Class/Division/Group along with the part number of
the battery that must be used. The intrinsically safe approval label will be located on the portable
radio unit.

Operational Cautions for Intrinsic Safe Equipment
• Do not operate radio communications equipment in a hazardous atmosphere unless it is a type
especially qualified (for example, FM, UL, CSA, or CENELEC approved). An explosion or fire may
result.
• Do not operate a radio unit that has been approved as intrinsically safe product in a hazardous
atmosphere if it has been physically damaged (for example, cracked housing). An explosion or fire
may result.
• Do not replace or charge batteries in a hazardous atmosphere. Contact sparking may occur while
installing or removing batteries and cause an explosion or fire.

Warnings for Radios Approved as Intrinsically Safe
Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability
and the intrinsic safety approval labelling (FM, UL, CSA, CENELEC). Radios will not be upgraded to
this capability and labeled once they have been shipped to the field.

viii

A modification changes the unit's hardware from its original design configuration. Modifications can
only be made by the original product manufacturer.
• Do not replace or change accessories in a hazardous atmosphere. Contact sparking may
occur while installing or removing accessories and cause an explosion or fire.
• Turn the radio off before removing or installing a battery or accessory.
• Do not disassemble an intrinsically safe product in any way that exposes the internal
circuits of the unit.
• Failure to use an intrinsically safe approved battery or Approved accessories specifically
approved for the radio unit may result in the dangerously unsafe condition of an
unapproved radio combination being used in a hazardous location.
• Unauthorized or incorrect modification of the intrinsically safe approved Product will
negate the approval rating of the product.
• Incorrect repair or relabeling of any intrinsically safe Agency approved radio could
adversely affect the Approval rating of the unit.
• Use of a radio that is not intrinsically safe in a hazardous atmosphere could result in
serious injury or death.

Repair
REPAIRS FOR MOTOROLA PRODUCTS WITH INTRINSICALLY SAFE APPROVAL ARE THE
RESPONSIBILITY OF THE USER.
• Repairs to a Motorola FM approved radio product should only be done at a location that
has been FM audited under the FM 3605 repairs and service standard.
• Contact Motorola for assistance regarding repairs and service of Motorola intrinsically
safe equipment.

A repair constitutes something done internally to the unit that would bring it back to its original
condition.
Items not considered as repairs are those in which an action is performed on a unit which does not
require the outer casing of the unit to be opened in a manner that exposes the internal electrical
circuits of the unit.

Do Not Substitute Options or Accessories
The Motorola communications equipment certified as intrinsically safe by the approving agency,
(FM, UL, CSA, CENELEC) is tested as a complete system which consists of the listed agency
Approved portable, Approved battery, and Approved accessories or options, or both. This Approved
portable and battery combination must be strictly observed. There must be no substitution of items,
even if the substitute has been previously Approved with a different Motorola communications
equipment unit. Approved configurations are listed by the Approving Agency (FM, UL, CSA,
CENELEC).
The intrinsically safe Approval label affixed to radio refers to the intrinsically safe classification of
that radio product, and the approved batteries that can be used with that system.
The manual PN referenced on the intrinsically safe approval label identifies the approved
Accessories and or options that can be used with that portable radio unit.
Using a non Motorola intrinsically safe battery and or accessory with the Motorola approved radio
unit will void the intrinsically safe approval of that radio unit.

ix

Table of Contents
Document History .............................................................................................i
Safety Information .......................................................................................... iii
Section 1

Introduction

1.0 Scope of Manual.................................................................................................. 1-1
2.0 Warranty and Service Support............................................................................. 1-1
2.1 Warranty Period ............................................................................................. 1-1
2.2 After Warranty Period..................................................................................... 1-1
2.3 Piece Parts ..................................................................................................... 1-2
2.4 Technical Support .......................................................................................... 1-2
2.5 Further Assistance From Motorola ................................................................. 1-2

Section 2

Service Aids

1.0 Recommended Test Tools................................................................................... 2-1

Section 3

Power Up Self-Test

1.0 Error Codes ......................................................................................................... 3-1

Section 4

Controller Information

1.0 Overview.............................................................................................................. 4-1
2.0 Radio Power Distribution ..................................................................................... 4-1
3.0 Controller Board................................................................................................... 4-2
3.1 General........................................................................................................... 4-2
3.2 Digital Architecture ......................................................................................... 4-3
3.3 Keypad ........................................................................................................... 4-5
3.4 Troubleshooting Chart.................................................................................... 4-6
3.5 Controller Board Diagrams............................................................................. 4-7
Controller Board Top View (PCB No. 8404051G07/G08) ..................................... 4-7
Controller Board Top View (PCB No. 8404051G07/G08) ..................................... 4-8
Controller Board Top View (PCB No. 8404051G09) ............................................. 4-9
Controller Board Bottom View (PCB No.8404051G09) ........................................ 4-10
3.6 Controller Schematics .................................................................................. 4-11
Complete Controller Schematic Diagram ............................................................. 4-11
Controller ASFIC/ON_OFF Schematic Diagram .................................................. 4-12
Controller Micro Processor Schematic Diagram .................................................. 4-13
Controller Memory Schematic Diagram ............................................................... 4-14

x

Controller Audio Power Amplifier Schematic Diagram..........................................4-15
Controller Parts List for VHF (for 8404051G07/G08 and 8404051G09) ...............4-16
Controller Parts List for UHF 1, UHF 2 and 330MHz (for 8404051G07/G08 and
8404051G09)................................................................................................4-17
3.7 Controller Board Diagrams ...........................................................................4-18
Controller Board Top View (PCB No. 8404056G01).............................................4-18
Controller Board Bottom View (PCB No.8404056G01) ........................................4-19
Controller Board Top View (PCB No. 8404056G02).............................................4-20
Controller Board Bottom View (PCB No. 8404056G02) .......................................4-21
3.8 Controller Schematics...................................................................................4-22
Complete Controller Schematic Diagram..............................................................4-22
Controller ASFIC/ON_OFF Schematic Diagram...................................................4-23
Controller Micro Processor Schematic Diagram ...................................................4-24
Controller Memory Schematic Diagram ................................................................4-25
Controller Audio Power Amplifier Schematic Diagram..........................................4-26
Controller Interface Schematic Diagram (for 8404056G01)..................................4-27
Controller Interface Schematic Diagram (for 8404056G02)..................................4-28
Controller Parts List for VHF (for 8404056G01/G02)............................................4-29
Controller Parts List for UHF 1, UHF 2 and 330MHz (for 8404056G01/G02).......4-31

Section 5A
1.0
2.0
3.0
4.0

Model Chart and Test Specifications (136-174 Mhz)

Model Chart....................................................................................................... 5A-1
Specifications (for GP328 Plus) ........................................................................ 5A-2
Specifications (for GP338 Plus/GP338 XLS) .................................................... 5A-3
Transmitter ........................................................................................................ 5A-4
4.1 General ........................................................................................................ 5A-4
5.0 Receiver ............................................................................................................ 5A-6
5.1 Receiver Front-End...................................................................................... 5A-6
5.2 Receiver Back-End ...................................................................................... 5A-7
5.3 Automatic Gain Control Circuit .................................................................... 5A-8
6.0 Frequency Generation Circuitry ........................................................................ 5A-9
6.1 Synthesizer ................................................................................................ 5A-10
6.2 VCO - Voltage Controlled Oscillator .......................................................... 5A-11
7.0 Notes For All Schematics and Circuit Boards ................................................. 5A-13
8.0 Circuit Board/Schematic Diagrams and Parts List .......................................... 5A-15
VHF (136-174MHz) Main Board Top Side PCB No. 8404055G05/G06/G07..... 5A-15
VHF (136-174MHz) Main Board Bottom Side
PCB No. 8404055G05/G06/G07 ............................................................... 5A-16
VHF (136-174MHz) Main Board Top Side PCB No. 8404055G09 .................... 5A-17
VHF (136-174MHz) Main Board Bottom Side PCB No. 8404055G09 ............... 5A-18
VHF Controls And Switches Schematic Diagram (sheet 1 of 2) ........................ 5A-19
VHF Controls And Switches Schematic Diagram (sheet 2 of 2) ........................ 5A-20
VHF Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404055G09 PCB) .......................................................... 5A-21

xi

VHF Receiver Front End Schematic Diagram ....................................................5A-22
VHF Receiver Back End Schematic Diagram ....................................................5A-23
VHF Synthesizer Schematic Diagram ................................................................5A-24
VHF Voltage Controlled Oscillator Schematic Diagram .....................................5A-25
VHF Transmitter Schematic Diagram.................................................................5A-26
VHF Radio Parts List (RF Board) .......................................................................5A-27
9.0 Troubleshooting Charts ...................................................................................5A-31
Troubleshooting Flow Chart for Controller .........................................................5A-31
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2) ....................................5A-32
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) ....................................5A-33
Troubleshooting Flow Chart for Transmitter .......................................................5A-34
Troubleshooting Flow Chart for Synthesizer ......................................................5A-35
Troubleshooting Flow Chart for VCO .................................................................5A-36

Section 5B
1.0
2.0
3.0
4.0

Model Chart and Test Specifications (403-470 Mhz)

Model Chart .......................................................................................................5B-1
Specifications (for GP328 Plus).........................................................................5B-2
Specifications (for GP338 Plus/GP338 XLS).....................................................5B-3
Transmitter.........................................................................................................5B-4
4.1 General.........................................................................................................5B-4
5.0 Receiver.............................................................................................................5B-6
5.1 Receiver Front-End ......................................................................................5B-6
5.2 Receiver Back-End.......................................................................................5B-7
5.3 Automatic Gain Control Circuit .....................................................................5B-8
6.0 Frequency Generation Circuitry.........................................................................5B-9
6.1 Synthesizer.................................................................................................5B-10
6.2 VCO - Voltage Controlled Oscillator...........................................................5B-11
7.0 Notes For All Schematics and Circuit Boards..................................................5B-13
8.0 Circuit Board/Schematic Diagrams and Parts List...........................................5B-15
UHF (403-470MHz) Main Board Top Side PCB No. 8404077G05/G06/G07 .....5B-15
UHF (403-470MHz) Main Board Bottom Side
PCB No. 8404077G05/G06/G07 ................................................................5B-16
UHF (403-470MHz) Main Board Top Side PCB No. 8404077G09 ....................5B-17
UHF (403-470MHz) Main Board Bottom Side PCB No. 8404077G09 ...............5B-18
UHF Controls And Switches Schematic Diagram (sheet 1 of 2) ........................5B-19
UHF Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404077G09 PCB)...........................................................5B-20
UHF Receiver Front End Schematic Diagram....................................................5B-21
UHF Receiver Back End Schematic Diagram ....................................................5B-22
UHF Synthesizer Schematic Diagram................................................................5B-23
UHF Voltage Controlled Oscillator Schematic Diagram .....................................5B-24
UHF Transmitter Schematic Diagram ................................................................5B-25
UHF Band 1 Radio Parts List (RF Board) ..........................................................5B-26
9.0 Troubleshooting charts ....................................................................................5B-29

xii

Troubleshooting Flow Chart for Controller ......................................................... 5B-29
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2).................................... 5B-30
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2).................................... 5B-31
Troubleshooting Flow Chart for Transmitter ...................................................... 5B-32
Troubleshooting Flow Chart for Synthesizer...................................................... 5B-33
Troubleshooting Flow Chart for VCO................................................................. 5B-34

Section 5C
1.0
2.0
3.0
4.0

Model Chart and Test Specifications (450-527 Mhz)

Model Chart....................................................................................................... 5C-1
Specifications (for GP328 Plus) ........................................................................ 5C-2
Specifications (for GP338 Plus/GP338 XLS) .................................................... 5C-3
Transmitter ........................................................................................................ 5C-4
4.1 General ........................................................................................................ 5C-4
5.0 Receiver ............................................................................................................ 5C-6
5.1 Receiver Front-End...................................................................................... 5C-6
5.2 Receiver Back-End ...................................................................................... 5C-7
5.3 Automatic Gain Control Circuit .................................................................... 5C-8
6.0 Frequency Generation Circuitry ........................................................................ 5C-9
6.1 Synthesizer ................................................................................................ 5C-10
6.2 VCO - Voltage Controlled Oscillator .......................................................... 5C-11
7.0 Notes For All Schematics and Circuit Boards ................................................. 5C-13
8.0 Circuit Board/Schematic Diagrams and Parts List .......................................... 5C-15
UHF Band 2 (450-527MHz) Main Board Top Side
PCB No. 8404102G03/G04/G05 ............................................................... 5C-15
UHF Band 2 (450-527MHz) Main Board Bottom Side
PCB No. 8404102G03/G04/G05 ............................................................... 5C-16
UHF Band 2 (450-527MHz) Main Board Top Side PCB No. 8404102G07........ 5C-17
UHF Band 2 (450-527MHz) Main Board Bottom Side PCB No. 8404102G07 .. 5C-18
UHF Band 2 Controls And Switches Schematic Diagram (sheet 1 of 2)
UHF Band 2 Controls And Switches Schematic Diagram (sheet 2 of 2) ... 5C-19
UHF Band 2 Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404102G07 PCB) .......................................................... 5C-21
UHF Band 2 Receiver Front End Schematic Diagram....................................... 5C-22
UHF Band 2 Receiver Back End Schematic Diagram ....................................... 5C-23
UHF Band 2 Synthesizer Schematic Diagram ................................................... 5C-24
UHF Band 2 Voltage Controlled Oscillator Schematic Diagram ........................ 5C-25
UHF Band 2 Transmitter Schematic Diagram.................................................... 5C-26
UHF Band 2 Radio Parts List (RF Board) .......................................................... 5C-27
9.0 Troubleshooting charts.................................................................................... 5C-31
Troubleshooting Flow Chart for Controller ......................................................... 5C-31
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2).................................... 5C-32
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2).................................... 5C-33
Troubleshooting Flow Chart for Transmitter ...................................................... 5C-34
Troubleshooting Flow Chart for Synthesizer...................................................... 5C-35

xiii

Troubleshooting Flow Chart for VCO ............................................................... 5C-36

Section 5D

Model Chart and Test Specifications (330-400 Mhz)

1.0
2.0
3.0
4.0

Model Chart ...................................................................................................... 5D-1
Specifications (for GP328 Plus)........................................................................ 5D-2
Specifications (for GP338 Plus)........................................................................ 5D-3
Transmitter........................................................................................................ 5D-4
4.1 General........................................................................................................ 5D-4
5.0 Receiver............................................................................................................ 5D-6
5.1 Receiver Front-End ..................................................................................... 5D-6
5.2 Receiver Back-End...................................................................................... 5D-7
5.3 Automatic Gain Control Circuit .................................................................... 5D-8
6.0 Frequency Generation Circuitry........................................................................ 5D-9
6.1 Synthesizer................................................................................................ 5D-10
6.2 VCO - Voltage Controlled Oscillator.......................................................... 5D-11
7.0 Notes For All Schematics and Circuit Boards................................................. 5D-13
8.0 Circuit Board/Schematic Diagrams and Parts List.......................................... 5D-15
330-400MHz Main Board Top Side PCB No. 8404101G02/G03/G04............... 5D-15
330-400MHz Main Board Bottom Side PCB No. 8404101G02/G03/G04 ......... 5D-16
330-400MHz Main Board Top Side PCB No. 8404101G06 .............................. 5D-17
330-400MHz Main Board Bottom Side PCB No. 8404101G06 ......................... 5D-18
330-400MHz Controls And Switches Schematic Diagram (sheet 1 of 2) .......... 5D-19
330-400MHz Controls And Switches Schematic Diagram (sheet 2 of 2) .......... 5D-20
330-400MHz Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404101G06 PCB).......................................................... 5D-21
330-400MHz Receiver Front End Schematic Diagram ..................................... 5D-22
330-400MHz Receiver Back End Schematic Diagram ...................................... 5D-23
330-400MHz Synthesizer Schematic Diagram.................................................. 5D-24
330-400MHz Voltage Controlled Oscillator Schematic Diagram ....................... 5D-25
330-400MHz Transmitter Schematic Diagram .................................................. 5D-26
330-400MHz Radio Parts List (RF Board)......................................................... 5D-27
9.0 Troubleshooting charts ................................................................................... 5D-31
Troubleshooting Flow Chart for Controller ........................................................ 5D-31
Troubleshooting Flow Chart for Receiver (Sheet 1 of 2) ................................... 5D-32
Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) ................................... 5D-33
Troubleshooting Flow Chart for Transmitter ...................................................... 5D-34
Troubleshooting Flow Chart for Synthesizer ..................................................... 5D-35
Troubleshooting Flow Chart for VCO ................................................................ 5D-36

Section 6

Flex Layout/Schematic Diagrams and Parts Lists

1.0 RF-Controller Interconnect Flex........................................................................... 6-1
1.1 Rev A.............................................................................................................. 6-1
1.2 Rev B ............................................................................................................. 6-1

xiv

2.0 Schematic for RF-Controller Interconnect Flex ....................................................6-2
3.0 Universal Connector Flex .....................................................................................6-3
3.1 GP328 Plus.....................................................................................................6-3
3.2 GP338 Plus/GP338 XLS.................................................................................6-4
4.0 Schematic for Universal Connector Flex..............................................................6-5
4.1 GP328 Plus.....................................................................................................6-5
4.2 GP338 Plus/GP338 XLS.................................................................................6-5
5.0 Parts List for Universal Connector Flex................................................................6-6
5.1 GP328 Plus.....................................................................................................6-6
5.2 GP338 Plus/GP338 XLS.................................................................................6-6

1-1

Section 1
INTRODUCTION

1.0

Scope of Manual
This manual is intended for use by service technicians familiar with similar types of equipment. It
contains service information required for the equipment described and is current as of the printing
date. Changes which occur after the printing date may be incorporated by a complete Manual revision
or alternatively as additions.
NOTE Before operating or testing these units, please read the Safety Information Section in the
front of this manual.

2.0

Warranty and Service Support
Motorola offers long term support for its products. This support includes full exchange and/or repair of
the product during the warranty period, and service/repair or spare parts support out of warranty. Any
"return for exchange" or "return for repair" by an authorised Motorola Dealer must be accompanied by
a Warranty Claim Form. Warranty Claim Forms are obtained by contacting an Authorised Motorola
Dealer.

2.1

Warranty Period
The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or Reseller
contract. These conditions may change from time to time and the following notes are for guidance
purposes only.
In instances where the product is covered under a "return for replacement" or "return for repair"
warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This
is to ensure that the product has been correctly programmed or has not been subjected to damage
outside the terms of the warranty.
Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact Customer
Services. All returns must be accompanied by a Warranty Claim Form, available from your Customer
Services representative. Products should be shipped back in the original packaging, or correctly
packaged to ensure no damage occurs in transit.

2.2

After Warranty Period
After the Warranty period, Motorola continues to support its products in two ways.
1.

Motorola's Accessories and Aftermarket Division (AAD) offers a repair service to both end
users and dealers at competitive prices.

2.

AAD supplies individual parts and modules that can be purchased by dealers who are technically capable of performing fault analysis and repair.

1-2

2.3

Warranty and Service Support

Piece Parts
Some replacement parts, spare parts, and/or product information can be ordered directly. If a
complete Motorola part number is assigned to the part, it is available from Motorola’s Accessories and
Aftermarket Division (AAD). If no part number is assigned, the part is not normally available from
Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola Depot
only. If a parts list is not included, this generally means that no user-serviceable parts are available for
that kit or assembly.
All orders for parts/information should include the complete Motorola identification number. All part
orders should be directed to your local AAD office. Please refer to your latest price pages.

2.4

Technical Support
Technical support is available to assist the dealer/distributor in resolving any malfunction which may
be encountered. Initial contact should be by telephone wherever possible. When contacting Motorola
Technical Support, be prepared to provide the product model number and the unit’s serial number.

2.5

Further Assistance From Motorola
You can also call the CGISS Indirect Business Customer Help Desk number, (604)-6302525 or send
an email to customercare.asia@motorola.com.

2-1

Section 2
SERVICE AIDS

1.0

Recommended Test Tools
Table 2-1 lists the tools recommended for working on this family of radios. These tools are also
available from Motorola.
Table 2-1: Recommended Test Tools

Motorola Part No.
6680387A59
6680387A64
6680387A65
0180382A31
6680375A74
0180386A81
0180386A78
0180386A82
6684253C72
6680384A98
1010041A86
1080370B43
R-1070A

or R-1319A

Description

Application

Extractor, 2-contact
Heat controller with safety
stand or
Safety stand only
Portable desoldering unit

Removal of discrete surface-mounted devices

0.025 replacement tip, 5/pk
Miniature digital readout
soldering station (incl. 1/64”
micropoint tip)
Illuminated magnifying
glass with lens attachment.

For 0180382A31 portable desoldering unit.

Anti-static grounding kit
Straight prober
Brush
Solder (RMA type),
63/37, 0.020” diameter
1 lb. spool
RMA liquid flux

Used during all radio assembly and disassembly procedures

Shields and surfacemounted component - IC
removal/rework station
(order all heat-focus heads
separately)
Shields and surfacemounted component - IC
removal/rework station
SMD10000 M.A.P.E.

Removal and assembly of surface-mounted
integrated circuits and shields

Removal and assembly of surface-mounted
integrated circuits and shields

2-2

Recommended Test Tools

THIS PAGE INTENTIONALLY LEFT BLANK

3-1

Section 3
POWER UP SELF-TEST

1.0

Error Codes
Turning on the radio using the ON/OFF volume control starts a self-test routine which checks the
RAM, ROM checksum, EEPROM hardware and EEPROM checksum. If these checks are
successfully completed, the radio will generate the Self-Test Pass Tone. Radio emits only “bonk” (300
Hz) tone if it fails the self-test.

Error Code

Explanation

Corrective Action

“RAM TST ERROR”

RAM Test Failure

Retest radio by turning it off and turning it on again. If
message reoccurs, replace RAM (U405).

“ROM CS ERROR”

ROM Checksum is
wrong.

Reprogram FLASH Memory, then retest. If message
reoccurs, replace ROM (U406).

“EEPRM HW ERROR”

Codeplug structure
mismatch, non
existence of
codeplug.

Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
(U407).

“EEPRM CS ERROR”

Codeplug checksum is wrong.

Reprogram codeplug.

No Display

Display module is
not connected
properly.
Display module is
damaged.

Check connection between main board and display
module.
Replace with new display module.

3-2

Error Codes

THIS PAGE INTENTIONALLY LEFT BLANK

4-1

Section 4
CONTROLLER INFORMATION

1.0

Overview
This section provides a detailed theory of operation for the radio and its components.

2.0

Radio Power Distribution

Audio PA

UNSWB+

Vdda
Reg.
R5

7.5V
Battery

Fuse

SWB+

R1

R2

Vdda
R3

Vddd

Vddd
Reg.
TX.
Led

MECH.
SWB+

3.5V
Reg.

MCU Micro P, ROM
& EEPROM

Control

* LCD
Driver

ASFIC_CMP

FRACTN
VCOBIC

LVZIF

On/Off Switch

LI Ion

5V
Reg.

Low Battery
Detect

5V

Jumpers
Ant. SW
PA, Driver
PCIC(ALC)

RF. AMP, IF AMP
Ext. RX.
Buffer (NU)

*Not applicable to GP328 Plus

Dual Vdd
Regulator
Scheme

Single Vdd
Regulator
Scheme

R1

Y

Y

R2

N

N

R3

N

Y

R4

N

N

R5

Y

N

Vdda

Y

N

SW. Reg.

N

N

Figure 4-1: DC Power Distribution Block Diagram
Figure 4-1 illustrates the DC distribution throughout the radio board. A 7.5V battery (BATT 7.5V)
supplies power directly to the electronic ON/OFFcontrol as UNSWB+. When the radio is turned on,
MECH_SWB+ (ON/OFF volume control) will trigger the electronic ON/OFFcontrol(momentary-on
path), then SWB+ is distributed as shown in Figure 4-1. Vdda from 3.3V Vdda regulator will then
supply the microprocessor. Data is then sent to ASFIC_CMP to turn on GCB4(DAC). GCB4 will take
over the momentary-on path within 12ms. SWB+ will continue to support the whole board until the
radio is turned off.
Radio will be turned-off on two conditions;
1. MECH_SWB+ turned off
2. Low battery

4-2

Controller Board

When low battery level is detected by the microprocessor through both conditions above, it will store
the radio personality data to EEPROM before turning off.

3.0

Controller Board

3.1

General
The controller board is the central interface between the various subsytems of the radio. It is
separated into digital and audio architectures. The digital portion consists of a special Motorola
microcontroller (HC11FL0). The audio power amplifier (Audio PA) and audio/signalling/filter/
companding IC (ASFIC_CMP) form the backbone of the audio/signalling architecture.
External
Microphone

To Synthesizer
Mod
Out

Internal
Microphone

16.8 MHz
Reference Clock
from Synthesizer

Audio/Signalling
Architecture

Recovered Audio
Squelch

External
Speaker

Audio
PA

ASFIC_CMP

Internal
Speaker

3.3V
Regulator
(Vdda)
µP Clock

SPI

To RF Board

Digital
Architecture
RAM

3.3V
Regulator
(Vddd)

EEPROM

HC11FL0

ROM

Figure 4-2: Controller Block Diagram

SCI to Side
Connector

Controller Board

Digital Architecture
MCU configuration
There is one common MCU architecture for low-tier as well as for the high-tier products. It covers the
Conventional and Trunking portables. An open architecture system with the new HC11FL0 as the
processor is used. Combinations of different size RAM, ROM and EEPROM are available for various
application software.
Real Time Clock (RTC)
This radio supports Real Time Clock (RTC) module for purposes of Message Time Stamping and
Time Keeping. The RTC module resides in the micro-processor HC11FL0. It is kept alive by a backup Lithium Ion battery when the primary battery is removed.
UNSWB+

Vddd
U410

R461

HC11FL0
MODA
MODB

C435

1

R460

4
2

R420

FL401
38.4kHz

OUT

C436

2

3
C434

R419

3

LI_ION

1
R462

GND
R426

3.3V

CR411
5

Q416
3

PI6

VIN VOUT

1 VSS

2

IN

R463
300

PI7
C437

5

Q417
1

CR413
1

4
6

3

BOOT_CTRL

2

1

3.2

4-3

2
UNSWB+

3

4

SWB+

TP405
TEST_POINT

Figure 4-3: RTC Circuit
Circuit Description
The RTC module which resides in the HC11FL0 is powered by the ModB/Vstby pin and PI6/PI7 form
the crystal oscillator circuit. Clock frequency of 38.4kHz from a crystal oscillator provides the
reference signal. In the processor, the frequency is divided down to 1Hz.
As the RTC module is powered separately from the processor Vdd, the RTC is kept alive through the
ModB / Vstby pin when the radio is switched off. A small button Lithium Ion battery continues to feed
the RTC when the primary battery is removed.
A MOSFET Q416 switches in the Li (Lithium) Ion supply when Vdd is removed. Q416 also provides
isolation from BOOT_CTRL function in the event of radio program flashing. A small 3.3V regulator is
used to charge the Li (Lithium) Ion battery.

4-4

Controller Board

ModB/Vstby Supply
Under various conditions, the supply to the ModB/Vstby would vary. Table 4-1 shows these
conditions and circuits in operation.
Table 4-1: ModB/Vstby Supply Modes
Condition

Circuit Operation

Radio On

Vdd supply voltage via CR411

Radio Off

• Vdd turned off
• Q416 gate is pulled low by R462
• Q416 is switched on
• U410 supplies 3.2V to ModB/Vstby

Primary battery removed

• Vdd turned off
• Q416 gate is pulled low by R462
• Q416 is switched on
• Li Ion battery provides 3.2V to ModB/Vstby

Flash Mode

• Boot_Ctrl line pull low
• ModA & ModB goes low
• Processor in boot-strap mode
• Flashing enabled

Controller Board

Keypad
The LED_EN setting is set by the codeplug. When the value is set to high, the LED will not light up
during power up and vice versa.
U602 is a comparator that will compare the voltage when any one of the keypad row or keypad
column keys is being pressed. Therefore when a key is being pressed, it will send a message to the
microprocessor through the output (KEY_INT) telling it that a key has been pressed. The
microprocessor will then sample the Analog to Digital voltages at the keypad row and keypad column
and map it with the table so that the key being pressed can be identified. Once the key has been
identified, the message that corresponds to the key will show up at the display.

18 pin connector

Data

Display

3.3

4-5

Keypad Column
Micro Processor
Keypad
Row
Key_Int

LED

Comparator

Figure 4-4: Keypad Block Diagram

Keypad
Button

4-6

3.4

Controller Board

Troubleshooting Chart

Display

OFF

Disconnect and
reconnect 18-pin
flex

IF STILL OFF
ON
Keypad
LED

OFF

Disconnect and
reconnect 40-pin
flex

ON

End

Figure 4-5: Keypad Board Troubleshooting Chart

4-7

Controller Board Diagrams

R410

R411

R409

21

R437

22

R408
R702

U405

R418

C431

R492

R457

C456

C453

R701

1

R478
C429

C433
7

8
C419

C420

R413

R481
R445

R421

R436

C410

R432
R428

C414

R431

C479
C408
C409

R424

C430

C411

R453

C451

R449

R425

R475

R423

C422

C423

R452

C425

C481

R434

C416

R447

R435

C450

C730

C444

C426

R473

C421

R400

C449

R415
R414

R471

C448
C447

C400

C428

R429

C427

R472

R456

R416

C401

R455

R406

R463

R454

C435

R451

R448

R460

VR447

VR448

VR450

VR445

VR446

VR449

VR432

VR433

TP410

TP402

TP401

C441

C491

C492
C490

C494
C493

C495

C497

C496

C471

C472
TP406

C473

C443

R477
L400

C728
C716

C721

C722
C718

C725

C726
C727

C715

C723

C729

C714

C717

C720

C719

C710

C724

C709

C707

C708

R427
C711

C701

C702

C712

C706

C704

C705

ZMY0130794-O

R450

C713

L401

C402

C445

R476

C703

3.5

TP405

TP415

Controller Board Top View (PCB No. 8404051G07/G08)

4-8

C731

C733

C732

C734

SH400

1

32
1

76

U406

17

16

U409

C440
37

25

8
U407

4

3 Q405
4

1

Q400

5

5

8

CR412

C403

C452

CR440

Q410

RT400

Q403

4 3
C475

C480

CR413

13

L411

1

C415

1

C476

C442

20

51

26

4
Q417
3

U404

U420

L410

10

C424

R499 R498

11

U400
4

ZMY0130795-O
20

1

40

1
J400

J403
21

Controller Board Top View (PCB No. 8404051G07/G08)

22

4-9

22

21

R408

R478

C420

C422

R425

R475

C410

R424

C409
C411

C448
C447

C428

C427

R472
R429

R416

R406

C401

R456 R454 R453

R455 R451 R452

R448

R460
R463

C408

R471

R447

C435

C414

C430

C451

R428

R449

R421 C479

R436

R432

R481

R445

R431

C423

C481

R413 R434

C416

R473

C730

C425

C426

C419 C444 R435

C450

C421

8

R400

R414

7

C429

C449

R415

R701

1

U405

R702

R418

C433

R492

R423

R409

R437

C431

R410

R411

C456

R457

C453

VR447

VR448

VR450

VR445

VR446

VR449

VR432

VR433

C400

TP401

C441

C491

C492
C490

C494

C495

C497

TP402

C493

TP410

C496

C473

TP406

C471

C443

C472

C445
L401

R477
L400

C728
C716

C721

C722
C718

C725

C726
C727

C715

C723

C729

C714

C717

C719

C710

C720

C724

C709

C708

R450

C707

C701

C702

C706

C712

C705

C703

C704

C713

C711

R427

R476
C402

TP405

TP415

Controller Board Top View (PCB No. 8404051G09)

4-10

C733

C731

C734

C732

1

1

76

32

SH400

U409

16

17

U406

C440

1
C476

3
4

C415

Q410

C424
8
U407
1
4

1

J400

21

22

J403
1

Controller Board Bottom View (PCB No.8404051G09)

C475

4 Q405
3

CR440

Q400
CR412

40

C403

U400

C452
5

8

4

L410

Q403

CR413

C480

L411

RT400

1

13

20

26

51
3
4

Q417

5

U420

U404

R499 R498

11

10

37

C442

25

20

4-11

Controller Schematics

GREEN_LED

Vdda

5V

BATT_CODE

GREEN_LED

N.U.
BATT_CODE

INT_EXT_Vdd

N.U.
LEDBL

MECH_SWB+

N.U.
URX_SND

N.U.
MODIN

N.U.
RX_AUD_RTN

FLAT_TX_RTN

16.8MHz
N.U.

MODIN

5V
Vdda

UNSWB+

SWB+

RESET

EE_CS

FLAT_RX_SND

VOX

VS_GAINSEL

CHACT

N.U.

AUDIO_PA_ENA

ASFIC
BATT_DATA_IN

VS_AUDSEL

F1200

DACRX
N.U.

EXT_MIC

SYN

DACRX

AUDIO
INT_MIC

EXT_SPKR_SEL

DATA

DEMOD

CLK

Vddd
DEMOD

TX_AUD_SND

4V_3.3V

CSX

N.U.

DACRx
CSX
MODIN
DATA
CLK
LOCK
UNSWB+
UNSWB+

DEMOD
RSSI
16.8MHz
5V
Vdda
RESET
BATT_CODE

RDY

AUDIO

INT_MIC

EXT_SPKR_SEL

EXT_MIC
RSSI

BOOT_CTRL

SCI_RX

SCI_TX

N.U.

OPT_SEL1

SCI_TX

FLASH_EN

SCI_RX

FLASH_OE

BOOT_CTRL

RAM_CS

RSSI

R_W

RTA0

RTA0

Vddd

RTA1

RTA1

D0
D1
D2
D3
D4
D5
D6
D7

RTA2

RTA2

RSSI

OPT_SEL2

XA18

RTA3

RTA3

MICRO_P

OPT_SEL2

OPT_SEL1

UNSWB+

SWB+

VOX

RESET

CHACT

F1200

SYN

CLK

DATA

BATT_DATA_IN

LCD_SEL

SB1

SB1

SB2

SB2

SB3

SB3

ZMY0130783-O

OFF_BATT_DATA_OUT
LI_ION
OPT_ENA

N.U.
N.U.
MECH_SWB+

MECH_SWB+
VOL

VOL
N.U.
N.U.

KEYPAD_ROW

N.U.

LOCK

VS_RAC
KEYPAD_COL

2602001P16
SH400
SHIELD

LOCK

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

VS_INT

RESET

Note: The capacitor values for VHF, UHF1, UHF2 and
330MHz bands differ. Please refer to the appropriate
controller parts lists for the correct values.

R_W

MEMORY

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

N.U.

N.U.

D0
D1
D2
D3
D4
D5
D6
D7

Vddd

800MHz TRUNKING
33pF
33pF
RAM_CS

UHF
100pF

C733
N.U.

XA18

VHF
470pF

C732
N.U.

FLASH_OE

C731
470pF

C734
N.U.

VS_CS

EMER

BOARD ID

LVZIF_SEL
N.U.

EMER

LVZIF_SEL

PTT

C716
470pF

PTT

C718
470pF

CSX

C720
NU

AUDIO_PA

KEY_INT

C722
470pF

C717
470pF

N.U.

C724
470pF

C719
NU

HSIO

C726
470pF

C721
470pF

LSIO

C728
470pF

C723
470pF

C725
NU

SQ_DET

C727
470pF

MISO

C729
470pF

FLAT_RX_SND

CSX

AUDIO_PA_ENA

CLK

5V

SWB+

DATA

Vdda

SWB+
RESET

UNSWB+

N.U.

RED_LED
RED_LED
GREEN_LED
SB1
SB2
SB3
EMER
RTA0
RTA1
RTA2
RTA3
MECH_SWB+
VOL
PTT
LVZIF_SEL
SWB+

EE_CS

J400-33
J400-32
J400-38
J400-37
J400-36
J400-35
J400-30
J400-29
J400-28
J400-27
J400-31
J400-34
J400-39
J400-23
J400-16
J400-17
J400-2
J400-22
J400-10
J400-24
J400-25
J400-4
J400-6
J400-7
J400-8
J400-19
J400-26
J400-12
J400-15
J400-14
J400-3
J400-21
J400-20
J400-1
J400-5
J400-9
J400-11
J400-13
J400-18
J400-40
J400-41
J400-42

HSIO

J400
TO/FROM RF
0902042P03
RED_LED
GREEN_LED
SB1
SB2
SB3
EMER
RTA0
RTA1
RTA2
RTA3
MECH_SWB+
VOL
PTT
LVZIF_SEL
SWB+
SWB+
DACRx
CSX
MODIN
DATA
CLK
LOCK
UNSWB+
UNSWB+
UNSWB+
DEMOD
RSSI
16.8MHz
5V
Vdda
RESET
BATT_CODE
LI_ION
GND
GND
GND
GND
GND
GND
GND
N.U.
N.U.

16.8MHz

N.U.

C701
470pF

TX_AUD_RTN

C703
470pF

C705
470pF

RED_LED

C702
470pF

C704
470pF

LSIO

C707
470pF

C709
470pF

C711
470pF

C706
470pF

OFF_BATT_DATA_OUT

C713
470pF

C708
470pF

SQ_DET

C715
470pF

C710
470pF

MISO

C712
470pF

C714
470pF

FLASH_EN

3.6

1

Complete Controller Schematic Diagram

4-12

SWB+
TP406
1
C400
.01uF

1

U400
LP2951ACMM-3.3

C402
0.1uF

R448
10K

C409
0.1uF

C408
470pF

Vdda

R447
100K

MECH_SWB+

DEMOD
DACRx
VOX

C430
0.1uF

FLAT_RX_SND

C414
0.1uF

C415
0.1uF

C452
1uF

C451
.022uF

2
3

R453
NU

R456
0

48
47
46
45
44
43
42 N.U.
41
40
39
38 N.U.
37
VDDA
DISC
GNDA
DACU
DACR
DACG
VOX
PLCAP
SQIN
UIO
VDDDAC
AGCCAP

ASFIC CMP
U404
30C53
5185130C53

TXRTN
GCB3
CLK168
VDDD
VDDCP
GNDD
GNDD0
F1200
SYN
VDDSYN
NC
PLCAP2

36
35
34
33
32
31
30
29
28
27
26
25

RED_LED
16.8MHz

C420
.01uF

C421
0.1uF

R400
47K

C419
NU

F1200
SYN

C416
0.1uF

Vdda
(3.3V)

C422
0.1uF
R413
0

Vddd
5V
C428
0.1uF

C427
470pF

ZMY0130781-O

R429
10K

VSS

SCK
CS
WP
HOLD
SI

GREEN_LED
AUDIO_PA_ENA
EXT_SPKR_SEL
CHACT
SQ_DET
LSIO
HSIO
CSX
CLK
DATA

4

6
1
3
7
5

VCC

8

EE_CS

Controller ASFIC/ON_OFF Schematic Diagram

CR440

3

C481
0.1uF

U407
X25650-2.7
8K x 8 EEPROM
SO

2

EEPROM

MISO

3

OFF_BATT_DATA_OUT

R455
NU
2

AUDIO
MODIN
1
2
3
4
N.U. 5
N.U. 6
7
8
9
10
11
12

MICEXT
GNDRC
MICINT
VDDRC
TXSND
AUXRX
AUXTX
AUDIO
MOD
URXOUT
GCB5
GCB4

R449
24K

GCB2
GCB1
GCB0
CHACT
SQDET
LSIO
HSIO
CSX
CLK
DATA
GNDSYN
LCAP

C411
0.1uF

2

R416
10K

R451
15K

R454
NU

13
14
15
16
17
18
19
20
21
22
23
24

Vdda
(3.3V)

Q403
1

C480
10uF

R481
24K

R445
24K

4802245J54
4 Q405
UMG5

1

4813824A17
MMBT3906L

R452
100K

C410
0.1uF

C479
0.1uF

C403
10uF

GND

TP410
1

R427
2.7K
RB731U
4802245J62
CR412

R476
24K

RESET

Vddd

R406
75K

4

INT_MIC

EXT_MIC

1
8 INPUT
OUTPUT
5
7 FEEDBACK
ERROR
3 SHUTDOWN
2
SENSE
6
VTAP

R425
30K

BATT_CODE
UNSWB+

2

3
C401
0.1uF

R475
0

4809579E18
BCX71KL
Q400

(3.3V)
Vddd

1
4813833C02
MMBD6100LT1

K1
K2
K3

A1
A2
A3

BATT_DATA_IN

4-13

F1200

Vddd

R457
10K

SCI_RX

TP401
TEST_POINT

TP402
TEST_POINT
1
R418
0

FLASH_OE
LSIO
CHACT
SQ_DET
HSIO

MISO

DATA

1

SYN

SCI_TX

R409
10K

Vddd

Vddd

Vddd

R437
NU
C431
470pF

C453
470pF

C449
470pF

C423
470pF

C730
470pF

L411
390nH
L410
390nH

12
VDD
88
VDDR
39
VDDL
59
AVDD

67
66
65
64
63
62
61
60

CSGP3
CSGP4

RTA0
RTA1
RTA2
RTA3
SB1
SB2
SB3
OFF_BATT_DATA_OUT
LOW BATT

VOL
N.U.

RSSI
VOX
N.U.
N.U.

R415
91K
1%

C433
.01uF

4802245J62
RB731U

R414
180K
1%

Mech_SWB+

CR413
R463
300

TP415
TEST_POINT
1

A1
A2
A3

RT400
33.0K
0680590Z01
THERM

TP405
TEST_POINT

Q417
1

EMER
PTT
OPT_SEL1

BOOT_CTRL

Vddd

R432
51K

LOCK

K1
K2
K3

47K
2

UNSWB+

1

PE0_AN0
PE1_AN1
PE2_AN2
PE3_AN3
PE4_AN4
PE5_AN5
PE6_AN6
PE7_AN7

VST

4.7K

95
LVOUT

92
VDDSYN
93
XFC

68
VRL
69
VRH

90
EXTAL
91
XTAL

86
85
84
83
82
81
80
79

5102226J56

RESET
R_W

47K

A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

U409
MC68HC11FL0

71
72
73
74
75
76
77
78

C435
0.1uF

R460
4.7K

13 VSS
87 VSSR
40 VSSL
70
AVSS

PC0_DATA0
PC1_DATA1
PC2_DATA2
PC3_DATA3
PC4_DATA4
PC5_DATA5
PC6_DATA6
PC7_DATA7

22
23
24
25
26
27
28
29

D0
D1
D2
D3
D4
D5
D6
D7

30
31
32
33
34
35
36
37

89
ECLK
96
IRQ
48
XIRQ
94
RESET
4
PG7_R_W
58
MODA_LIR
57
MODB_VSTBY

PJ0_CSGP3
PJ1_CSGP4
PJ2
PJ3
PJ4
PJ5
PJ6
PJ7

49 PI7
N.U.
50 PI6
N.U.
51 PI5
N.U.
52 PI4
53 PI3
54
PI2
55
PI1
N.U.
56 PI0

N.U.

RAM_CS
FLASH_EN

PH0_PW1
PH1_PW2
PH2_PW3
PH3_PW4
PH4_CSIO
PH5_CSGP1
PH6_CSGP2
PH7_CSPROG

PB7_ADDR15
PB6_ADDR14
PB5_ADDR13
PB4_ADDR12
PB3_ADDR11
PB2_ADDR10
PB1_ADDR9
PBO_ADDR8

N.U.

7
8
15
21
9
11
10
14

LVZIF_SEL

47
46
45
44
43
42
41
38

PF7_ADDR7
PF6_ADDR6
PF5_ADDR5
PF4_ADDR4
PF3_ADDR3
PF2_ADDR2
PF1_ADDR1
PFO_ADDR0

XA18
BATT_DATA_IN

PG0_XA13
PG1_XA14
PG2_XA15
PG3_XA16
PG4_XA17
PG5_XA18
PG6_AS

PA7_PA1_OC1
PA6_OC2_OC1
PA5_OC3_OC1
PA4_OC4_OC1
PA3_IC4_OC5_OC1
PA2_IC1
PA1_IC2
PA0_IC3

3
2
1
100
99
98
97
PD6_LVIN
PD5_SS
PD4_SCK
PD3_MOSI
PD2_MISO
PD1_TXD
PD0_RXD

6
16
20
19
17
18
5

OPT_SEL2

C456
470pF

R411
10K

N.U.

CLK
CSX
EE_CS

6

ZMY0130785-O

10K

3

4

SWB+

4802245J50
UMC5N

Controller Micro Processor Schematic Diagram

4-14

Vddd

C425
0.1uF

20
CS
22
OE
27
WE

RAM_CS

D1
D2
D3
D4
D5
D6
D7
D8

11
12
13
15
16
17
18
19

14

R_W

Used for Trunking only.
U405
Not_placed_SRAM
CY62256VLL

VSS

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14

Static RAM

10
9
8
7
6
5
4
3
25
24
21
23
2
26
1

VDD

28

C426
470pF

R428
2.2

FLASH_OE

Vddd
C424
10uF /6V
2311049A59

R410
100K

C429
0.1uF

XA18

R478
10K
R702
0

R492
0

FLASH_EN

30
EN_CE
32
EN_OE
7
EN_WE
20
19
18
17
16
15
14
13
3
2
31
1
12
4
5
11
10
6
9

A0
D0
A1
D1
A2
D2
A3
D3
A4
D4
D5
A5
D6
A6
A7
D7
A8
A9 FLASH ROM
A10
A11
A12
A13
A14
A15
A16
A17
A18

RESET

Controller Memory Schematic Diagram

R701
NU

24

GND

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

U406
AT49HLV010

VCC

8

R408
NU

XA18

21
22
23
25
26
27
28
29

D0
D1
D2
D3
D4
D5
D6
D7

ZMY0130784-O

4-15

MMBZ5240B 4880140L15
UNSWB+

OPT_SEL2
OPT_SEL1

C475
10uF

SWB+
VR445
10V

R473
10

U420
TDA8547
16
IN1POS
17
IN1NEG

DIO

NC1
NC2
NC3
NC4
NC5

J403-19 INT_SPK+
J403-18 INT_SPKJ403-17 EXT_SPK+
J403-16 EXT_SPK-

2
7
9
12
19

C443
0.1uF

L401
390nH

J403-14 EXT_MIC

R434
330

5V

R435
2K

Vdda
(3.3V)

R436
0

R421
2K

J403-13 OPT_SEL_2
J403-12 OPT_SEL_1

SCI_RX

J403-10 RX_DATA

SCI_TX

J403-9

TX_DATA

J403-8

GND

RSSI

J403-7

RSSI

FLAT_RX_SND

J403-6

RX_AUDIO/TX_AUDIO

BOOT_CTRL

J403-5

BOOT_CTRL

J403-4

NC

J403-3

MIC

J403-2

GND

J403-1

GND

L400
390nH

C440
4.7uF

SWB+

C445
470pF

J403-11 GND
C444
470pF

C441
470pF

R477
1K

INT_MIC

R471
20K

4

J403-15 OPT_B+

EXT_MIC

C476
10uF

6

0909059E04

J403-20 GND

OUT2POS 8
OUT2NEG 13

6
4 SELECT
5 MODE
SVR

C450
NU

C473
470pF

VR449
10V

VR448
10V

VR447
10V

J403
20 PIN CONN

OUT1POS 3
OUT1NEG 18

15 IN2POS
14 IN2NEG

GND1

R424
36K

C472
470pF

20 11

1

C448
0.1uF

R431
470K

R498
10K

C471
470pF

VCC2

R472
36K

VCC1

R499
10K

GND2

C447
0.1uF

C442
0.1uF

10

R423
470K

R450
68
1W

VR446
10V

x 5pcs.

Q410
UMG5

J403-21 NC

4802245J54

J403-22 NC

AUDIO_PA_ENA

1

2

ZMY0130782-O

3

EXT_SPKR_SEL

MMQA5V6T1
4805656W08
VR432
5.6V

C497
470pF

MMBZ5240B
4880140L15
C496
470pF

C495
470pF

C494
470pF

VR450
10V

VR433
5.6V

C493
470pF

C490
470pF
C492
470pF

MMQA5V6T1
4805656W08

C491
470pF

Controller Audio Power Amplifier Schematic Diagram

4-16

Controller Parts List for VHF (for
8404051G07/G08 and 8404051G09)
Circuit
Ref
C400
C401
C402
C403
C408
C409
C410
C411
C414
C415
C416
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C433
C435
C440
C441
C442
C443
C444
C445
C447
C448
C449
C450
C451
C452
C453
C456
C471
C472
C473
C475
C476
C479
C480

Motorola
Part No.
2113743L41
2113743M24
2113743M24
2113928D08
2113743L09
2113743M24
2113928N01
2113743M24
2113743M24
2185895Z01
2113928N01
NOT PLACED
2113743L41
2113928N01
2113743M24
2113743L09
2311049A59
2113743M24
2113743L09
2113743L09
2113743M24
2113743M24
2113928N01
2113743L09
2113743L41
2113743M24
2113743G26
2113743L09
2113743E20
2113928N01
2113743L09
2113743L09
2113928N01
2113928N01
2113743L09
NOT PLACED
2113743M08
2113743B29
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743H14
2113928D08
2113928N01
2113928D08

Description
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 uF
470 pF, 10%
100000 pF, +80% / -20%
0.1 uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.01 uF
0.1 uF, 10%
10000 pF, 10%
0.1 uF, 10%
100000 pF, +80% / -20%
470 pF, 10%
10 uF, 10%
100000 pF, +80% / -20%
470 pF, 10%
470 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.1 uF, 10%
470 pF, 10%
10000 pF, 10%
100000 pF, +80% / -20%
4.7 uF, +80% / -20%
470 pF, 10%
0.10 uF, 10%
0.1 uF, 10%
470 pF, 10%
470 pF, 10%
0.1 uF, 10%
0.1 uF, 10%
470 pF, 10%
22000 pF, +80% / -20%
1.00 uF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
10.0 uF, +80% / -20%
10.0 uF
0.1 uF, 10%
10.0 uF

Circuit
Ref

Motorola
Part No.

C481
C490
C491
C492
C493
C494
C495
C496
C497
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715
C716
C717
C718
C719
C720
C721
C722
C723
C724
C725
C726
C727
C728
C729
C730
C731
C732
C733
C734
CR412
CR413
CR440

2113928N01
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
NOT PLACED
NOT PLACED
2113743L09
2113743L09
2113743L09
2113743L09
NOT PLACED
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
NOT PLACED
NOT PLACED
NOT PLACED
4802245J62
4802245J62
4813833C02

J400
J403
L400
L401

0902042P03
0909059E04
2462587Q42
2462587Q42

Description
0.1 uF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%

Diode Schottky
Diode Schottky
Dual Diode, Common Cathode
40 Pins Connector
20 Pins Connector
390 nH, 10%
390 nH, 10%

Circuit
Ref
L410
L411
Q400
Q403
Q405
Q410
Q417
R400
R406
R408
R409
R410
R411
R413
R414
R415
R416
R418
R421
R423
R424
R425
R427
R428
R429
R431
R432
R434
R435
R436
R437
R445
R447
R448
R449
R450
R451
R452
R453
R454
R455
R456
R457
R460
R463
R471
R472
R473
R475
R476
R477

Motorola
Part No.
2462587Q42
2462587Q42
4809579E18
4813824A17
4802245J54
4802245J54
4809939C05
0662057N15
0662057N20
NOT PLACED
0662057M98
0662057N23
0662057M98
0662057M01
0662057V34
0662057V26
0662057M98
0662057M01
0662057M81
0662057N39
0662057N12
0662057N10
0662057M84
0662057M10
0662057N20
0662057N39
0662057N16
0662057M62
0662057M81
0662057M01
NOT PLACED
0662057N08
0662057N23
0662057M98
0662057N08
0683962T45
0662057N03
0662057N23
NOT PLACED
NOT PLACED
NOT PLACED
0662057M01
0662057M98
0662057M90
0662057M61
0662057N06
0662057N12
0662057M26
0662057M01
0662057N08
0662057M74

Description
390 nH, 10%
390 nH, 10%
TSTR MOSFET
XSTR PNP 40V
Digital Transistor
Digital Transistor
Transistor Dual NPN / PNP
47 k, 5%
75 k, 5%
10 k, 5%
100 k, 5%
10 k, 5%
0, 5%
180 k, 1%
91 k, 1%
10 k, 5%
0, 5%
2000, 5%
470 k, 5%
36 k, 5%
30 k, 5%
2700, 5%
2.2, 5%
75 k, 5%
470 k, 5%
51 k, 5%
330, 5%
2000, 5%
0, 5%
24 k, 5%
100 k, 5%
10 k, 5%
24 k, 5%
68
15 k, 5%
100 k, 5%

0, 5%
10 k, 5%
4700, 5%
300, 5%
20 k, 5%
36 k, 5%
10, 5%
0, 5%
24 k, 5%
1000, 5%

Circuit
Ref
R478
R481
R492
R498
R499
R701
R702
RT400
SH400
TP401
TP402
TP405
TP406
TP410
TP415
U400
U404
U405
U406
U407
U409
U420
VR432
VR433
VR445
VR446
VR447
VR448
VR449
VR450

Motorola
Part No.

Description

0662057M98 10 k, 5%
0662057N08 24 k, 5%
0662057M01 0, 5%
0662057M98 10 k, 5%
0662057M98 10 k, 5%
NOT PLACED
0662057M01 0, 5%
0680590Z01 Thermistor 33k
2602001P16 Shield, Controller
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
5102463J40
3.3V Regulator
5185130C53 ASFIC CMP
NOT PLACED
*5102463J60 Flash ROM 512K x 8
*5102463J64 EEPROM 16K x 8
5102226J56
uP HC11FLO
5102463J44
Audio Amplifier
4805656W08 Quad Zener Diode
4805656W08 Quad Zener Diode
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
* Motorola Depot Servicing only

4-17

Controller Parts List for UHF 1, UHF 2
and 330MHz (for 8404051G07/G08 and
8404051G09)
Circuit
Ref
C400
C400
C401
C402
C403
C408
C409
C410
C411
C414
C415
C416
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C433
C435
C440
C441
C442
C443
C444
C445
C447
C448
C449
C450
C451
C452
C453
C456
C471
C472
C473
C475
C476

Motorola
Part No.
2113743L41
2113743L41
2113743M24
2113743M24
2113928D08
2113743N50
2113743M24
2113928N01
2113743M24
2113743M24
2185895Z01
2113928N01
NOT PLACED
2113743L41
2113928N01
2113743M24
2113743N50
2311049A59
2113743M24
2113743N50
2113743N50
2113743M24
2113743M24
2113928N01
2113743N50
2113743L41
2113743M24
2113743G26
2113743N50
2113743E20
2113928N01
2113743N50
2113743N50
2113928N01
2113928N01
2113743N50
NOT PLACED
2113743M08
2113743B29
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743H14
2113928D08

Description
0.01uF
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 uF
100 pF, 5%
100000 pF, +80% / -20%
0.1 uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.01 uF
0.1 uF, 10%
10000 pF, 10%
0.1 uF, 10%
100000 pF, +80% / -20%
100 pF, 5%
10 uF, 10%
100000 pF, +80% / -20%
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.1 uF, 10%
100 pF, 5%
10000 pF, 10%
100000 pF, +80% / -20%
4.7 uF, +80% / -20%
100 pF, 5%
0.10 uF, 10%
0.1 uF, 10%
100 pF, 5%
100 pF, 5%
0.1 uF, 10%
0.1 uF, 10%
100 pF, 5%
22000 pF, +80% / -20%
1.00 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
10.0 uF, +80% / -20%
10.0 uF

Circuit
Ref

Motorola
Part No.

C479
C480
C481
C490
C491
C492
C493
C494
C495
C496
C497
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715
C716
C717
C718
C719
C720
C721
C722
C723
C724
C725
C726
C727
C728
C729
C730
C731
C732
C733
C734
CR412
CR413
CR440

2113928N01
2113928D08
2113928N01
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
2113743N50
NOT PLACED
NOT PLACED
4802245J62
4802245J62
4813833C02

J400
J403

0902042P03
0909059E04

Description
0.1 uF, 10%
10.0 uF
0.1 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
Diode Schottky
Diode Schottky
Dual Diode, Common Cathode
40 Pins Connector
20 Pins Connector

Circuit
Ref
L400
L401
L410
L411
Q400
Q403
Q405
Q410
Q417
R400
R406
R408
R409
R410
R411
R413
R414
R415
R416
R418
R421
R423
R424
R425
R427
R428
R429
R431
R432
R434
R435
R436
R437
R445
R447
R448
R449
R450
R451
R452
R453
R454
R455
R456
R457
R460
R463
R471
R472
R473
R475

Motorola
Part No.
2462587Q42
2462587Q42
2462587Q42
2462587Q42
4809579E18
4813824A17
4802245J54
4802245J54
4809939C05
0662057N15
0662057N20
NOT PLACED
0662057M98
0662057N23
0662057M98
0662057M01
0662057V34
0662057V26
0662057M98
0662057M01
0662057M81
0662057N39
0662057N12
0662057N10
0662057M84
0662057M10
0662057N20
0662057N39
0662057N16
0662057M62
0662057M81
0662057M01
NOT PLACED
0662057N08
0662057N23
0662057M98
0662057N08
0683962T45
0662057N03
0662057N23
NOT PLACED
NOT PLACED
NOT PLACED
0662057M01
0662057M98
0662057M90
0662057M61
0662057N06
0662057N12
0662057M26
0662057M01

Description
390 nH, 10%
390 nH, 10%
390 nH, 10%
390 nH, 10%
TSTR MOSFET
XSTR PNP 40V
Digital Transistor
Digital Transistor
Transistor Dual NPN / PNP
47 k, 5%
75 k, 5%
10 k, 5%
100 k, 5%
10 k, 5%
0 , 5%
180 k, 1%
91 k, 1%
10 k, 5%
0 , 5%
2000 , 5%
470 k, 5%
36 k, 5%
30 k, 5%
2700 , 5%
2.2 , 5%
75 k, 5%
470 k, 5%
51 k, 5%
330 , 5%
2000 , 5%
0 , 5%
24 k, 5%
100 k, 5%
10 k, 5%
24 k, 5%
68
15 k, 5%
100 k, 5%

0 , 5%
10 k, 5%
4700 , 5%
300 , 5%
20 k, 5%
36 k, 5%
10 , 5%
0 , 5%

Circuit
Ref
R476
R477
R478
R481
R492
R498
R499
R701
R702
RT400
SH400
U400
U404
U405
U406
U407
U409
U420
VR432
VR433
VR445
VR446
VR447
VR448
VR449
VR450

Motorola
Part No.

Description

0662057N08 24 k, 5%
0662057M74 1000 , 5%
0662057M98 10 k, 5%
0662057N08 24 k, 5%
0662057M01 0 , 5%
0662057M98 10 k, 5%
0662057M98 10 k, 5%
NOT PLACED
0662057M01 0 , 5%
0680590Z01 Thermistor 33k
2602001P16 Shield, Controller
5102463J40
3.3V Regulator
5185130C53 ASFIC CMP
NOT PLACED
*5102463J60 Flash ROM 512K x 8
*5102463J64 EEPROM 16K x 8
5102226J56
Microprocessor IC
5102463J44
Audio Amplifier
4805656W08 Quad Zener Diode
4805656W08 Quad Zener Diode
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
4880140L15
10V Zener
* Motorola Depot Servicing only

4-18

3.7

Controller Board Diagrams

M605

M604
D601

D602

R620

R621

M608

M607

M610

M609

M611
D605

R618

R619

M616

ZMY0130800-O

M612

D604

M613

M614

M615

M617

M618

D603

D606

R622

R623

M621

M620

M619
TP406

Controller Board Top View (PCB No. 8404056G01)

M606

TP410

TP402

TP401

TP405

TP415

4-19

1

C616

32
Q603

U406

Q602

17

Q601

R647
R411

R457

16

R607

R604

R648
CR413

R601

R603

E704
R633

C612

R602

R646

R608

R605

R609

R606

R610

R437

R418

C456

R409

C609

R463

1

C610

C611

R613

18
R632

U602

R432

E637

R611

R410

E702

E703

J702

R414

E634

R612

C613

R428

C429

E644

E645

C433

C424

E642

E643

R415

R478

R408

E640

E641

R649

C751

R492

E639

E400

E638
C750

RT400
21

L410

L411

C449
C421

CR440

CR411

C423
R426
R420
R416

C434
8

5
U400
4

R427 C406
R476

C402
C703

C705

C706

C712

C701

C702

C711

C707

C708

C709

C403

C704

C400

U410

C710

C714

C717

C729

C731

C723

C722

C715

C727

C718

C726

C721

C728

C471

C716

C473

C497

C496

C495

C494

C493

C490

R477

C492

C491

R419

R448

C445

Q403
R453

C441

CR412

C401

R454
L401

R406

R456

R421

R447

L400

R450

VR447

VR445

3
4 Q405

Q400

R462

C480

C724

VR432

VR446

R461

R451

VR433

VR448

C452

C436

R460 C435

R455

R452

VR449

R400

C430
C440

VR450

C422

C414

3

FL401

Q416

Q417
3 4
R436

C410

R473

C442

13

R434

R475

C476
C475

1

C713

R425 C472
C479

1

C730

C415

C451

20

C437

U404

R435 C444

R499

51

26

C409 C408

U420

U409

25

37

C411

R431
C448
R423

R424

10

11

C420

C450

C416

R413

3
4

7

C481

R471
R481

4

C419

Q410

R498

C447

1

C405

R429

8

U407
1

R472

76

1

5

C443

C428

C427

U405

8

C453

22
C426

R721

C425

R722

C431

04

1

ZMY0130801-O

20
g2

1

J403

g1

J400

Controller Board Bottom View (PCB No.8404056G01)

Controller Board Top View (PCB No. 8404056G02)
TP406 TP410 TP402
TP401 TP405 TP415

M621

R623 D606

M620

R622 D603

M619

M618

M617

M616

M615

R619 D605

M614

R618 D604

M613

M612

M611

M610

M609

R621 D602

M608

R620 D601

M607

M606

M605

M604

4-20

g2
20
J403
g1
40

R462

C730

R447

C403

R426

U404
C437

Q405 C436

3
4

8

C423

76

R432

R414

R608
R605 R609

U602

R604

R416

R460 C435

C433

C609

R613

R611

R612

R601

R420

51

C456

C434

R437 R418

R415

C611

C713 R476

R461

3

R457 R409

C612

C704 C400
C703 C402

Q416
FL401

R603

C401 R406

R602

C705

R632

C706

C480

CR412

U409

R411

C712

R455
Q400

C415

Q602

C616

C701

R647

C702

R648
Q601

R633
R649

E704

C711

CR411

Q603

R646

C707

U410

U406

C708

1

CR413

18

1

J702

E634

C709

26

R463

C710

R453
R451 R448

R454

C724

L401

C714

L400
CR440

R410

Q403

E637

C717

E409

C425

E645

3
4

32

E644

E408

R456

C426

17

E407

C445

C449

22

E643

C729

R450
R452

C421

7

E642

E406

C731

13
Q417

C420

E400

E640

E405

R421

R436

1
R434 C430

1

E403

E641

C723

VR447

R400

E401

E639

E404

C715

C414

C451

C422

C416

L411

C722

VR445

E702

C727

VR446

R435 C444

37

C718

VR448

E402

J400

1

R473

C419

R428

C726

C442

C481

C452

Q410

C721

C440

R471

E703

C728

U405

C613

R413

C424

R478

E638

C716

VR449
R475

C405

21

1

C750

C471

C476

R481

R498

C473

C475
C450

C443

3
4

C411

4

C410

8

16

C751

C497

1

C409 C408 C479 R425 C472

U407

C496

VR450

10

R721

C495

U420

8

1

L410

C494

VR432

11

R722
C429

C493

R499
20

R429 C428 C427

R408

C490

VR433

R423 C448 R431

R472 C447 R424

R492

R477

C492

C491

C441

4-21

C610

E701

R607

R606 R610

C431
RT400
C453

5

25

U400
5
4

R419 R427 C406

1

Controller Board Bottom View (PCB No. 8404056G02)

4-22

Controller Schematics

Vdda

GREEN_LED

FLAT_RX_SND
5V
Vdda

UNSWB+
SWB+
C717
100pF

SWB+
Vddd

LCD_SEL

KEY_INT

AUDIO

INT_MIC

EXT_SPKR_SEL

EXT_MIC
RSSI

BOOT_CTRL

SCI_RX

SCI_TX

OPT_SEL1

UNSWB+

SWB+

VOX

FLASH_OE

BOOT_CTRL
RSSI
RTA0

R_W

RTA0

Vddd

RTA1

RTA1

D0
D1
D2
D3
D4
D5
D6
D7

RTA2

RTA2

RTA3

RTA3

MICRO_P

SB1

SB1

SB2

SB2

SB3

SB3

OFF_BATT_DATA_OUT
LI_ION

LI_ION

OPT_ENA
MECH_SWB+
VOL

MECH_SWB+
VOL

VS_RAC
KEYPAD_COL

KEYPAD_COL

KEYPAD_ROW

KEYPAD_ROW

ZMY0130816-O

VS_INT

LOCK
LOCK

PTT
PTT

EMER

MARKER

EMER

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

KEY_INT

RESET

RESET

SCI_RX

KEY_INT

R_W
Vddd

RAM_CS

MEMORY

CLK
N.U.

FLASH_OE

XA18

D0
D1
D2
D3
D4
D5
D6
D7

FLASH_EN

LCD_SEL

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

CHACT

SCI_TX

FLASH_EN

RESET
LEDBL
DATA

OPT_SEL2

XA18

RAM_CS

KEYPAD_ROW
KEYPAD_COL

RDY

OPT_SEL1

RSSI

LCD_SEL

BATT_DATA_IN

SYN

F1200

CLK

VS_CS

INTERFACE

Note: The capacitor values for VHF, UHF1, UHF2 and
330MHz bands differ. Please refer to the appropriate
controller parts lists for the correct values.

LVZIF_SEL

DATA

AUDIO_PA

LVZIF_SEL

EXT_MIC
VS_CS
SWB+
Vddd
VS_AUDSEL
FLAT_RX_SND
RX_AUD_RTN
TX_AUD_SND
TX_AUD_RTN
FLAT_TX_RTN
OPT_ENA
RDY
URX_SND
ON
INT_EXT_Vdd
KEYPAD_ROW
KEYPAD_COL
PTT
KEY_INT
VS_INT
RESET
LEDBL
OFF_BATT_DATA_OUT
VS_GAINSEL
MISO
DATA
R_W
LCD_SEL
D0
D1
D2
D3
D4
D5
D6
D7
A0
CLK
VS_RAC

FLAT_RX_SND

C716
100pF

CSX

C718
100pF

HSIO

C722
100pF

LSIO

C724
100pF

SQ_DET

C726
100pF

MISO

C728
100pF

EE_CS

C731
100pF

AUDIO_PA_ENA

CLK

5V

DATA

Vdda

RESET

OPT_SEL2

C721
100pF

SWB+

C723
100pF

C727
100pF

UNSWB+

C729
100pF

CSX

Complete Controller Schematic Diagram

5V

BATT_CODE
BATT_CODE

GREEN_LED

INT_EXT_Vdd

LEDBL
LEDBL

AUDIO_PA_ENA

UNSWB+

SYN

F1200

CLK

MISO

VS_GAINSEL

DEMOD
RSSI
16.8MHz
5V
Vdda
RESET
BATT_CODE
LI_ION

MECH_SWB+

MODIN

URX_SND

RX_AUD_RTN

FLAT_TX_RTN

VS_AUDSEL

SWB+

DACRX

EXT_MIC

RESET

DACRX

AUDIO
INT_MIC

EXT_SPKR_SEL

ASFIC

VOX

DEMOD

BATT_DATA_IN

Vddd

CHACT

Vddd
DEMOD

TX_AUD_RTN

4V_3.3V

N.U.

DACRx
CSX
MODIN
DATA
CLK
LOCK
UNSWB+

OFF_BATT_DATA_OUT

RED_LED
GREEN_LED
SB1
SB2
SB3
EMER
RTA0
RTA1
RTA2
RTA3
MECH_SWB+
VOL
PTT
LVZIF_SEL
SWB+

SQ_DET

J400-33
J400-32
J400-38
J400-37
J400-36
J400-35
J400-30
J400-29
J400-28
J400-27
J400-31
J400-34
J400-39
J400-23
J400-16
J400-17
J400-2
J400-22
J400-10
J400-24
J400-25
J400-4
J400-6
J400-7
J400-8
J400-19
J400-26
J400-12
J400-15
J400-14
J400-3
J400-21
J400-20
J400-1
J400-5
J400-9
J400-11
J400-13
J400-18
J400-40
J400-41
J400-42

EE_CS

RED_LED
GREEN_LED
SB1
SB2
SB3
EMER
RTA0
RTA1
RTA2
RTA3
MECH_SWB+
VOL
PTT
LVZIF_SEL
SWB+
SWB+
DACRx
CSX
MODIN
DATA
CLK
LOCK
UNSWB+
UNSWB+
UNSWB+
DEMOD
RSSI
16.8MHz
5V
Vdda
RESET
BATT_CODE
LI_ION
GND
GND
GND
GND
GND
GND
GND
N.U.
N.U.

MODIN

100pF
C701

DATA

100pF
C703

16.8MHz

100pF
C705

J400
TO/FROM RF
0902042P03

TX_AUD_SND

100pF
C707

100pF
C702

CSX

100pF
C709

100pF
C704

RED_LED

100pF
C711

100pF
C706

16.8MHz

100pF
C713

100pF
C708

RED_LED

100pF
C715

100pF
C710

HSIO

100pF
C712

100pF
C714

LSIO

3.8

VHF
(470pF)
C751

UHF
(100pF)
C750

470pF

100pF

4-23

BCX71KL
4809579E18

SWB+
(3.3V)
Vddd

TP406
1

3

1

U400
LP2951ACMM-3.3
8 INPUT
OUTPUT
7 FEEDBACK ERROR
3 SHUTDOWN SENSE
VTAP
GND

C402
0.1uF

1
5
2
6

C410
0.1uF

C405

RESET

C406
0.1uF

Vdda

R448
10K

0.1uF

CR412

R447

4813824A17
MMBT3906L

LEDBL

AUDIO
MODIN

100K

100K

C480
10uF

C451
.022uF

MICEXT
GNDRC
MICINT
VDDRC
TXSND
RXRTN
AUXTN
AUDIO
MOD
RXSND
GCB5
GCB4

48
47
46
45
44
43
42
41
40
39
38
37

C452
1uF

A1
A2
A3

BATT_DATA_IN

R453
100K
NU

R454
100K
NU

R455
100K
NU

1

2

3
OFF_BATT_DATA_OUT

R416
10K

CR440

4802245J54
UMG5

2
1

3
4813833C02
MMBD6100LT1

ASFIC CMP
5185130C53

TXRTN
GCB3
CLK168
VDDD
VDDCP
GNDD
GNDDO
F1200
SYN
VDDSYN
NC
PLCAP2

GCB2
GCB1
GCB0
CHACT
SQDET
LSIO
HSIO
CSX
CLK
DATA
GNDSYN
LCAP

VDDA
DISC
GNDA
DACU
DACR
DACG
VOX
PLCAP
SQIN
UIO
VDDDAC
SQCAP

U404
30C53

C481
0.1uF

36
35
34
33
32
31
30
29
28
27
26
25

RED_LED
16.8MHz

C420
.01uF

C419
100pF FN1
,
NU
F1200
SYN

C416
0.1uF

13
14
15
16
17
18
19
20
21
22
23
24

C415
0.01uF

4802245J62

24K

1
2
3
4
5
6
7
8
9
10
11
12

C414
0.1uF

R456
0

R425
30K

C411
0.1uF

FLAT_RX_SND

K1
K2
K3

R427
2.7K

R451
15K

Q403

R452

R481

C430
0.1uF

Vddd

RB731U

MECH_SWB+

C421
0.1uF

C422
0.1uF

Vdda
R413
(3.3V)
0

R400
47K

Vddd

5V
C427
100pF

C428
0.1uF

R429
10K
EE_CS

U407
X25128-2.7
8K x 8 EEPROM
SCK
CS
EEPROM 2
WP
MISO
SO
HOLD
SI
VSS

4

6
1
3
7
5

VCC

8

ZMY0130817-O

GREEN_LED
AUDIO_PA_ENA
EXT_SPKR_SEL
CHACT
SQ_DET
LSIO
HSIO
CSX
CLK
DATA

VOX

BATT_CODE

C409
0.1uF

C479

DEMOD
DACRx

C403
10uF

4 Q405
C408
100pF

(3.3V)

R406
75K

R476
24K

R475
0

Vdda

UNSWB+

4

TP410
1

Vdda

2

C400
.01uF

INT_MIC

EXT_MIC

C401
0.1uF

100pF

Q400

Controller ASFIC/ON_OFF Schematic Diagram

4-24

Vddd

F1200

R457
10K

R409
10K

SCI_RX

1

FLASH_OE
LSIO
CHACT
SQ_DET
HSIO

R418
0
UNSWB+
Vddd

R437
100K FN1
,
C431
100pF

NU

C449
100pF

Vddd

Vddd

C453
100pF

C730
100pF

C423
100pF

U410
3.3V
ILC7062CM-33
2
3
VIN
VOUT

L411
390nH

89
96
48
94
4
58
57

C435
0.1uF

R461
180

R460
4.7K

4802245J62

KEY_INT

RB731U

RESET
R_W

CR411

VST

K1
K2
K3

LOW BATT
VOL

R415
91K
1%

RSSI
VOX
KEYPAD_COL
KEYPAD_ROW

C433
.01uF

Controller Micro Processor Schematic Diagram

2
R462
10K

R414
180K
1%
Mech_SWB+

CR413

R463
300

TP415
TEST_POINT
1

RB731U
A1
A2
A3

Q417

2

RT400
33.0K
0680590Z01

3

4

4.7K

47K

4802245J50
UMC5N

IN

1

C436
22pF

OUT

GND

BOOT_CTRL

6

THERM

3

R426
330K

2

K1
K2
K3

TP405
TEST_POINT
10K

1

LOCK

R420
10MEG

4802245J62

Vddd

R432
51K

EMER
PTT
OPT_SEL1

R419
510

LI_ION

1

BCX71KL

3

67
66
65
64
63
62
61
60

4809579E18

RTA0
RTA1
RTA2
RTA3
SB1
SB2
SB3
OFF_BATT_DATA_OUT

A1
A2
A3

47K

PE0_AN0
PE1_AN1
PE2_AN2
PE3_AN3
PE4_AN4
PE5_AN5
PE6_AN6
PE7_AN7

CSGP3
CSGP4

VSS
VSSR
VSSL
AVSS

71
72
73
74
75
76
77
78

13
87
40
70

PI7
PI6
PI5
PI4
PI3
PI2
PI1
PI0

U409
MC68HC11FL0
5102226J56

PJ0_CSGP3
PJ1_CSGP4
PJ2
PJ3
PJ4
PJ5
PJ6
PJ7

UNSWB+

A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

C434
0.1uF

1
12
VDD
88
VDDR
39
VDDL
59
AVDD

95
LVOUT

92
VDDSYN
93
XFC

68
VRL
69
VRH

90
EXTAL
91
XTAL

86
85
84
83
82
81
80
79
PA7_PA1_OC1
PA6_OC2_OC1
PA5_OC3_OC1
PA4_OC4_OC1
PA3_IC4_OC5_OC1
PA2_IC1
PA1_IC2
PA0_IC3

3
2
1
100
99
98
97
PD6_LVIN
PD5_SS
PD4_SCK
PD3_MOSI
PD2_MISO
PD1_TXD
PD0_RXD
PC0_DATA0
PC1_DATA1
PC2_DATA2
PC3_DATA3
PC4_DATA4
PC5_DATA5
PC6_DATA6
PC7_DATA7

22
23
24
25
26
27
28
29

D0
D1
D2
D3
D4
D5
D6
D7

30
31
32
33
34
35
36
37

PH0_PW1
PH1_PW2
PH2_PW3
PH3_PW4
PH4_CSIO
PH5_CSGP1
PH6_CSGP2
PH7_CSPROG

49
50
51
52
53
54
55
56

LCD_SEL
RAM_CS
FLASH_EN

ECLK
IRQ
XIRQ
RESET
PG7_R_W
MODA_LIR
MODB_VSTBY

Q416

PB7_ADDR15
PB6_ADDR14
PB5_ADDR13
PB4_ADDR12
PB3_ADDR11
PB2_ADDR10
PB1_ADDR9
PBO_ADDR8

LVZIF_SEL

47
46
45
44
43
42
41
38

PG0_XA13
PG1_XA14
PG2_XA15
PG3_XA16
PG4_XA17
PG5_XA18
PG6_AS

7
8
15
21
9
11
10
14

XA18
BATT_DATA_IN

6
16
20
19
17
18
5

PF7_ADDR7
PF6_ADDR6
PF5_ADDR5
PF4_ADDR4
PF3_ADDR3
PF2_ADDR2
PF1_ADDR1
PFO_ADDR0

OPT_SEL2

C456
100pF

R411
10K

VSS

L410
390nH
CLK
CSX
EE_CS

FL401
XTAL

4870368G02
38.4kHz

C437
22pF

ZMY0130818-O

SWB+

1

DATA

MISO

1

TP402
TEST_POINT

SYN

SCI_TX
TP401
TEST_POINT

4-25

Vddd

C425
0.1uF
Used for Trunking only.
U405
5102463J36
NU

10
9

VDD

28

C426
100pF

A0

D2
D3
D4
D6

11
12
13
15
16
17

18
D7
19
D8

VSS
14

R_W

D1

D5

20
CS
22
OE
27
WE

RAM_CS

CY62256VLL

Static RAM

A1
8
A2
7
A3
6
A4
5
A5
4
A6
3
A7
25
A8
24
A9
21
A10
23
A11
2
A12
26
A13
1
A14

R428
2.2

FLASH_OE

Vddd
C424
10uF
/6V
2311049A59

R410
100K

C429
0.1uF

XA18

A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

32
7

VCC

EN_CE
EN_OE
EN_WE

20

A0
19
A1
18
A2
17
A3
16
A4
15
A5
14
A6
13
A7
3
A8
2
31
1
12
4
5
11

D0
D1
FLASH ROM

A2

30

D2
D3

21

D0

22
23

D1
D2

25

D3

26
D4
27
D5
28
D6
29
D7

D4
D5
D6
D7

A9
A10
A11
A12

ZMY0130819-O

A13
A14

A15
10
A16
6
A17
9
A18

GND

A0
A1

FLASH_EN

24

R492
0

U406
AT49HLV010
5102463J59

8

R408
100K
NU

R478
10K

XA18

Controller Memory Schematic Diagram

4-26

MMBZ5240B

UNSWB+

OPT_SEL2

C475
10uF

SWB+

OPT_SEL1

VR445
10V
R473
10

AUDIO

R424
36K

R431
470K

R498
10K

1W

20

11

C472
100pF

8
OUT2POS
13
OUT2NEG

6
SELECT
4
MODE
5 SVR

2
7
9
12
19

NC1
NC2
NC3
NC4
NC5

C443
0.1uF

C473
100pF

L401
390nH

EXT_MIC

R434
330

5V

R435
2K

R436
0

R421
2K

C440
4.7uF

SWB+

C445
100pF

VR448
10V

VR449
10V

0909059E04

J403-1

GND

J403-2

INT_SPK+

J403-3

INT_SPK-

J403-4

EXT_SPK+

J403-5

EXT_SPK-

J403-6

OPT_B+

J403-7

EXT_MIC

J403-8

OPT_SEL_2

J403-9

OPT_SEL_1

L400
390nH

C441
100pF

J403-11 RX_DATA

SCI_RX

J403-12 TX_DATA

SCI_TX

J403-13 GND

R477
1K

J403-14 RSSI

RSSI

J403-15 RX_AUDIO/TX_AUDIO

FLAT_RX_SND

J403-16 BOOT_CTRL

BOOT_CTRL

J403-17 NC

INT_MIC

C450
100pF
NU

VR447
10V

J403-10 GND
C444
100pF

Vdda
(3.3V)

VR446
10V

J403
20 PIN CONN

3
OUT1POS
18
OUT1NEG

15 IN2POS
14 IN2NEG

C476
10uF

C471
100pF

VCC2

16
IN1POS
17
IN1NEG

1 GND1

C448
0.1uF

R472
36K

VCC1

C447
0.1uF

R499
10K

R450
68
C442
0.1uF

10 GND2

R423
470K

5102463J44
U420
TDA8547

4880140L15 x 5pcs.

R471
20K

J403-18 MIC
J403-19 GND

6

AUDIO_PA_ENA

4

1

2

J403-20 GND

Q410
UMG5
4802245J54

3

EXT_SPKR_SEL

MMQA5V6T1
4805656W08
VR432
5.6V

C497
100pF

C496
100pF

C495
100pF

C494
100pF

VR450
10V

VR433
5.6V

C493
100pF

C490
100pF
C492
100pF
C491
100pF

MMQA5V6T1
4805656W08

MMBZ5240B
4880140L15

Controller Audio Power Amplifier Schematic Diagram

ZMY0130820-O

4-27

J702
16 PINS CONNECTOR
P/N.0905505Y03
R721

R632
100K

4813824A10
MMBT3904L

R633
100K

4813824A10
MMBT3904L
Q603
NPN

Q602
NPN

100K
NU

100K
NU

R648
100K
R647
3K

Q601
PNP

R649
47K

MMBT3906L
4813824A17
D604
79U01

D605
79U01

D601
79U01

D602
79U01

D603
79U01

MOSI
SCK
D0
D1
D2
D3
D4
D5
D6
D7
A0
R/W*
RST*
CS*
LED_EN
Gnd
Vdd
SW_B+

ROW3

E645

R623
1K

R605
43K ,1%

R604
22K ,1%

3 GND

1 OUT1
4

IN
P1

R607
13K,1%

ROW3
R608
22K ,1%

ROW4

R609
43K ,1%

ROW5

1 OUT1

4

4 IN

IN
1

COL2

COL3

U602
LMC7211
5102463J49
4
3

2

IN

2 OUT2

P3

FN03 GND
,

M612
SWITCH

ROW2

1 OUT1
4 IN
2

2 OUT2

FN03 GND

2 OUT2

FN0
3 GND

3

FN0
3 GND

R610
130K ,1%

C612
100pF
KEYPAD_COL

4
P2

M611
SWITCH

1 OUT1

2 OUT2
KEYPAD_ROW ROW2

2 OUT2

KEYPAD_ROW

1 OUT1

IN

FN0 3 GND

3 GND

M609
SWITCH

M608
SWITCH

M610
SWITCH

R606
130K ,1%

C611
100pF

R612
560K

2 OUT2

3 GND

4

R602
51K,1%
R603
13K ,1%

R611
51K

-

1 OUT1

2 OUT2

E637
E702

BK1005HM471

E703

BK1005HM471

BK1005HM471

E642

BK1005HM471

E641

BK1005HM471

BK1005HM471

BK1005HM471 E640

E638

BK1005HM471 E639

BK1005HM471

BK1005HM471 E704

ZMY0130821-O

E634

4880479U01 x 6pcs.

4 IN

2+ OUT2

M607
SWITCH

R601
51K,1%

BK1005HM471

E644

R622
1K

BK1005HM471

R621
1K

4 IN

IN

M606
SWITCH
1 OUT1

COL5

C610
100pF

E643

LED for backlight.

R620
1K

4

3 GND

C613
100pF

BK1005HM471

R619
1K

1 OUT1

For LCD module

D606
79U01

ROW5
M605
SWITCH

1 OUT1

2 OUT2

FN0
R618
1K

ROW4
M604
SWITCH

>
-

C616
100pF

R646
100K

J702-1
J702-2
J702-3
J702-4
J702-5
J702-6
J702-7
J702-8
J702-9
J702-10
J702-11
J702-12
J702-13
J702-14
J702-15
J702-16
J702-17
J702-18

R722

DATA
CLK

M614
SWITCH

M613
SWITCH

COL5

M615
SWITCH

1 OUT1

1 OUT1

1

OUT1

4 IN

4

4

IN

2 OUT2

4

IN
5

2 OUT2

FN03 GND

FN03

2 OUT2

ROW3

6

FN03 GND

GND

1

5
M616
SWITCH
R613
1MEG
C609
100pF FN0
,

1 OUT1

1 OUT1

4

4

IN

2 OUT2

7

ROW4

1 OUT1
4

IN

2 OUT2

FN03 GND

M618
SWITCH

M617
SWITCH

8

IN

2 OUT2

FN03 GND

9

FN0 3 GND

NU

SWB+
Vddd

E400
M619
SWITCH

KEYPAD_ROW
KEYPAD_COL
KEY_INT
RESET
LEDBL
DATA
LCD_SEL
D0
D1
D2
D3
D4
D5
D6
D7
A0
CLK

DATA

KEYPAD 3 x 6

1 OUT1

1 OUT1

1 OUT1

4

4

4

IN

2 OUT2
FN0 3 GND

KEYPAD_COL

M621
SWITCH

M620
SWITCH

*

IN

2 OUT2
FN0 3 GND

COL2

0

ROW5

IN

2 OUT2

#

FN0 3 GND

COL3

CLK

Controller Interface Schematic Diagram (for 8404056G01)

4-28

ROW3

ROW4

ROW5

M604
SWITCH

M605
SWITCH

1 OUT1
4

4

IN

-

4

IN

2 OUT2

3 GND

1 OUT1

->

2 OUT2

M606
SWITCH

1 OUT1

+

3 GND

IN

2 OUT2
3 GND

COL5
KEYPAD_ROW
M607
SWITCH

J702

1 OUT1

1 OUT1

4

4

IN

2 OUT2

16 PINS CONNECTOR
P/N.0905505Y03

M608
SWITCH

P1

1 OUT1
4

IN

2 OUT2

FN0
, 3 GND

M609
SWITCH

P2

IN

2 OUT2

FN0
, 3 GND

P3

FN0
, 3 GND

R721

R632
100K

4813824A10
MMBT3904L

DATA

100K

R648
100K

C616
100pF

R646
100K

NU

NU

Q603
NPN

Q602
NPN

4813824A10
MMBT3904L

R647
3K

Q601

R649
47K

MOSI

J702-1

R722

CLK
100K

R633
100K

PNP

J702-2

SCK

J702-3

D0

J702-4

D1

J702-5

D2

J702-6

D3

J702-7

D4

J702-8

D5

J702-9

D6

J702-10

D7

J702-11

A0

J702-12

R/W*

J702-13

RST*

J702-14

CS*

ROW2
M610
SWITCH

4

J702-15

LED_EN

J702-16

Gnd

J702-17

Vdd

J702-18

SW_B+

1 OUT1

1 OUT1
4

IN

2 OUT2

M612
SWITCH

M611
SWITCH

1 OUT1

1

FN0
, 3 GND

4

IN

2 OUT2

2

IN

2 OUT2

3

FN0
, 3 GND

FN0
, 3 GND

ROW3

MMBT3906L
4813824A17

For LCD module

M614
SWITCH

M613
SWITCH
1 OUT1

M615
SWITCH

1 OUT1

1 OUT1

C613

E701
E637

BK1005HM471

BK1005HM471

E702
E703

BK1005HM471

E643
E641
BK1005HM471

E640
E639

BK1005HM471

BK1005HM471

E638
E704

BK1005HM471

BK1005HM471

BK1005HM471

E642

4880479U01 x 6pcs.

BK1005HM471

R623
1K

BK1005HM471

LED for backlight.

4

C610
100pF

BK1005HM471

R622
1K

R621
1K

100pF

D606
79U01

E645

R620
1K

D603
79U01

E634

R619
1K

D602
79U01

BK1005HM471

D601
79U01

E644

R618
1K

D605
79U01

BK1005HM471

D604
79U01

2 OUT2

R601
51K

13K

22K

R605

,1%

43K

130K

,1%

KEYPAD_ROW

ROW2
R608

R607
13K

ROW3

,1%

22K

,1%

ROW4

ROW5

R609

R610

43K

130K

,1%

RESET
LEDBL
DATA

DATA

LCD_SEL
E401

D0
E402

D1

E403

D2
E404

D3

E405

D4
E406

D5

E407

D6
E408

D7
A0
CLK

E409
CLK

Controller Interface Schematic Diagram (for 8404056G02)

4

IN

2 OUT2

7

M618
SWITCH
1 OUT1
4

IN

2 OUT2

FN0
, 3 GND

8

IN

2 OUT2

FN0
, 3 GND

9

FN0
, 3 GND

,1%
ROW5

C612
100pF

M619
SWITCH
KEYPAD_COL

COL2

COL3

4

U602
LMC7211

IN

2 OUT2

5102463J49
4

M621
SWITCH

M620
SWITCH

COL5
1 OUT1

*

1 OUT1

1 OUT1

4

4

IN

0

FN0
, 3 GND

FN0
, 3 GND

FN0
, 3 GND

2
1
5

COL2

IN

2 OUT2

2 OUT2

3

NU

KEY_INT

6

M617
SWITCH
1 OUT1

1 OUT1
4

R612
560K

IN

2 OUT2

FN0
, 3 GND

R606

,1%

C611
100pF

,

E400

5

ROW4
R604

,1%

C609
100pF FN0

Vddd

2 OUT2

FN0
, 3 GND

M616
SWITCH
R603

R611
51K

4

IN

R602
51K ,1%

,1%

KEYPAD_COL

KEYPAD_ROW
KEYPAD_COL

4

FN0
, 3 GND

R613
1MEG

SWB+

4

IN

COL3

KEYPAD 3 x 6

#

4-29

Controller Parts List for VHF (for
8404056G01/G02)
Circuit
Ref
C400
C401
C402
C403
C405
C406
C408
C409
C410
C411
C414
C415
C416
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C433
C434
C435
C436
C437
C440
C441
C442
C443
C444
C445
C447
C448
C449
C450
C451
C452
C453
C456
C471
C472

Motorola
Part No.
2113743L41
2113743M24
2113743M24
2113928D08
2113743L09
2113928N01
2113743L09
2113743M24
2113928N01
2113743M24
2113743M24
2185895Z01
2113928N01
NOT PLACED
2113743L41
2113928N01
2113743M24
2113743L09
2311049A59
2113743M24
2113743L09
2113743L09
2113743M24
2113743M24
2113928N01
2113743L09
2113743L41
2113743M24
2113743M24
2113743N34
2113743N34
2113743G26
2113743L09
2113743E20
2113928N01
2113743L09
2113743L09
2113928N01
2113928N01
2113743L09
NOT PLACED
2113743M08
2113743B29
2113743L09
2113743L09
2113743L09
2113743L09

Description
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 uF
470 pF, 10%
0.1uF, 10%
470 pF, 10%
100000 pF, +80% / -20%
0.1uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.01 uF
0.1uF, 10%
10000 pF, 10%
0.1uF, 10%
100000 pF, +80% / -20%
470 pF, 10%
10 uF, 10%, 6V
100000 pF, +80% / -20%
470 pF, 10%
470 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.1uF, 10%
470 pF, 10%
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
22.0 pF, 5%
22.0 pF, 5%
4.7 uF, +80% / -20%
470 pF, 10%
0.10 uF, 10%
0.1uF, 10%
470 pF, 10%
470 pF, 10%
0.1uF, 10%
0.1uF, 10%
470 pF, 10%
22000 pF, +80% / -20%
1.00 uF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%

Circuit
Ref
C473
C475
C476
C479
C480
C481
C490
C491
C492
C493
C494
C495
C496
C497
C609
C610
C611
C612
C613
C616
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715
C716
C717
C718
C721
C722
C723
C724
C726
C727
C728
C729
C730
C731
C751
CR411
CR412

Motorola
Part No.
2113743L09
2113743H14
2113928D08
2113743M24
2113928D08
2113928N01
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
NOT PLACED
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
4802245J62
4802245J62

Description
470 pF, 10%
10.0 uF, +80% / -20%
10.0 uF
100000 pF, +80% / -20%
10.0 uF
0.1uF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
Diode Schottky
Diode Schottky

Circuit
Ref

Motorola
Part No.

CR413
CR440

4802245J62
4813833C02

D601
D602
D603
D604
D605
D606
E400
E401
E402
E403
E404
E405
E406
E407
E408
E409
E634
E637
E638
E639
E640
E641
E642
E643
E644
E645
E701
E702
E703
E704
FL401
J400
J403
J702
L400
L401
L410
L411
M604
M605
M606
M607
M608
M609
M610
M611
M612
M613

4880479U01
4880479U01
4880479U01
4880479U01
4880479U01
4880479U01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
4870368G02
0902042P03
0909059E04
0905505Y03
2462587Q42
2462587Q42
2462587Q42
2462587Q42
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED

Description
Diode Schottky
Dual Diode, Common Cathode
LED
LED
LED
LED
LED
LED
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Reflowable Clock Osc X’tal
40 Pins Connector
20 Pins Connector
Conn ZIF Horizontal
390 nH, 10%
390 nH, 10%
390 nH, 10%
390 nH, 10%

Circuit
Ref
M614
M615
M616
M617
M618
M619
M620
M621
Q400
Q403
Q405
Q410
Q416
Q417
Q601
Q602
Q603
R400
R406
R408
R409
R410
R411
R413
R414
R415
R416
R418
R419
R420
R421
R423
R424
R425
R426
R427
R428
R429
R431
R432
R434
R435
R436
R437
R447
R448
R450
R451
R452
R453
R454

Motorola
Part No.
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
4809579E18
4813824A17
4802245J54
4802245J54
4809579E18
4809939C05
4813824A17
4813824A10
4813824A10
0662057N15
0662057N20
NOT PLACED
0662057M98
0662057N23
0662057M98
0662057M01
0662057V34
0662057V26
0662057M98
0662057M01
0662057M67
0662057B46
0662057M81
0662057N39
0662057N12
0662057N10
0662057N35
0662057M84
0662057M10
0662057N20
0662057N39
0662057N16
0662057M62
0662057M81
0662057M01
NOT PLACED
0662057N23
0662057M98
0683962T45
0662057N03
0662057N23
NOT PLACED
NOT PLACED

Description

TSTR MOSFET
XSTR PNP 40V
Digital Transistor
Digital Transistor
TSTR MOSFET
Transistor Dual NPN / PNP
XSTR PNP 40V
Transistor NPN
Transistor NPN
47 k, 5%
75 k, 5%
10 k, 5%
100 k, 5%
10 k, 5%
0, 5%
180 k, 1%
91 k, 1%
10 k, 5%
0, 5%
510, 5%
10.0 M, 5%
2000, 5%
470 k, 5%
36 k, 5%
30 k, 5%
330 k, 5%
2700, 5%
2.2, 5%
75 k, 5%
470 k, 5%
51 k, 5%
330, 5%
2000, 5%
0, 5%
100 k, 5%
10 k, 5%
68
15 k, 5%
100 k, 5%

4-30

Circuit
Ref
R455
R456
R457
R460
R461
R462
R463
R471
R472
R473
R475
R476
R477
R478
R481
R492
R498
R499
R601
R602
R603
R604
R605
R606
R607
R608
R609
R610
R611
R612
R613
R618
R619
R620
R621
R622
R623
R632
R633
R646
R647
R648
R649
R721
R722
RT400
TP401
TP402
TP405
TP406
TP410

Motorola
Part No.
NOT PLACED
0662057M01
0662057M98
0662057M90
0662057M56
0662057M98
0662057M61
0662057N06
0662057N12
0662057M26
0662057M01
0662057N08
0662057M74
0662057M98
0662057N08
0662057M01
0662057M98
0662057M98
0662057V20
0662057V20
0662057V05
0662057V11
0662057V18
0662057V30
0662057V05
0662057V11
0662057V18
0662057V30
0662057N16
0662057N41
0662057N47
0662057M74
0662057M74
0662057M74
0662057M74
0662057M74
0662057M74
0662057N23
0662057N23
0662057N23
0662057M85
0662057N23
0662057N15
NOT PLACED
NOT PLACED
0680590Z01
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED

Description
0, 5%
10 k, 5%
4700, 5%
180, 5%
10 k, 5%
300, 5%
20 k, 5%
36 k, 5%
10, 5%
0, 5%
24 k, 5%
1000, 5%
10 k, 5%
24 k, 5%
0, 5%
10 k, 5%
10 k, 5%
51 k, 1%
51 k, 1%
13 k, 1%
22 k, 1%
43 k, 1%
130 k, 1%
13 k, 1%
22 k, 1%
43 k, 1%
130 k, 1%
51 k, 5%
560 k, 5%
1.0 M, 5%
1000, 5%
1000, 5%
1000, 5%
1000, 5%
1000, 5%
1000, 5%
100 k, 5%
100 k, 5%
100 k, 5%
3000, 5%
100 k, 5%
47 k, 5%
Thermistor 33k

Circuit
Ref
TP415
U400
U404
U405
U406
U407
U409
U410
U420
U602
VR432
VR433
VR445
VR446
VR447
VR448
VR449
VR450

Motorola
Part No.
NOT PLACED
5102463J40
5185130C53
NOT PLACED
*5102463J60
*5102463J64
5102226J56
5102463J57
5102463J44
5102463J49
4805656W08
4805656W08
4880140L15
4880140L15
4880140L15
4880140L15
4880140L15
4880140L15

Description
3.3V Regulator
ASFIC CMP
Flash ROM 512K x 8
EEPROM 16K x 8
uP HC11FLO
3.3V Regulator
Audio Amplifier
Comparator CMOS
Quad Zener Diode
Quad Zener Diode
10V Zener
10V Zener
10V Zener
10V Zener
10V Zener
10V Zener

Note: E401 through E409 are NOT PLACED in
84D04056G01.
* Motorola Depot Servicing only

4-31

Controller Parts List for UHF 1, UHF 2
and 330MHz (for 8404056G01/G02)
Circuit
Ref
C400
C401
C402
C403
C405
C406
C408
C409
C410
C411
C414
C415
C416
C419
C420
C421
C422
C423
C424
C425
C426
C427
C428
C429
C430
C431
C433
C434
C435
C436
C437
C440
C441
C442
C443
C444
C445
C447
C448
C449
C450
C451
C452
C453
C456
C471
C472

Motorola
Part No.
2113743L41
2113743M24
2113743M24
2113928D08
2113743N50
2113928N01
2113743N50
2113743M24
2113928N01
2113743M24
2113743M24
2185895Z01
2113928N01
NOT PLACED
2113743L41
2113928N01
2113743M24
2113743N50
2311049A59
2113743M24
2113743N50
2113743N50
2113743M24
2113743M24
2113928N01
2113743N50
2113743L41
2113743M24
2113743M24
2113743N34
2113743N34
2113743G26
2113743N50
2113743E20
2113928N01
2113743N50
2113743N50
2113928N01
2113928N01
2113743N50
NOT PLACED
2113743M08
2113743B29
2113743N50
2113743N50
2113743N50
2113743N50

Description
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 uF
100 pF, 5%
0.1 uF, 10%
100 pF, 5%
100000 pF, +80% / -20%
0.1 uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.01 uF
0.1 uF, 10%
10000 pF, 10%
0.1 uF, 10%
100000 pF, +80% / -20%
100 pF, 5%
10 uF, 10%
100000 pF, +80% / -20%
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.1 uF, 10%
100 pF, 5%
10000 pF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
22.0 pF, 5%
22.0 pF, 5%
4.7 uF, +80% / -20%
100 pF, 5%
0.10 uF, 10%
0.1 uF, 10%
100 pF, 5%
100 pF, 5%
0.1 uF, 10%
0.1 uF, 10%
100 pF, 5%
22000 pF, +80% / -20%
1.00 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%

Circuit
Ref
C473
C475
C476
C479
C480
C481
C490
C491
C492
C493
C494
C495
C496
C497
C609
C610
C611
C612
C613
C616
C701
C702
C703
C704
C705
C706
C707
C708
C709
C710
C711
C712
C713
C714
C715
C716
C717
C718
C721
C722
C723
C724
C726
C727
C728
C729
C730
C731
C750
CR411
CR412

Motorola
Part No.
2113743N50
2113743H14
2113928D08
2113743M24
2113928D08
2113928N01
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
4802245J62
4802245J62

Description
100 pF, 5%
10.0 uF, +80% / -20%
10.0 uF
100000 pF, +80% / -20%
10.0 uF
0.1 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
Diode Schottky
Diode Schottky

Circuit
Ref

Motorola
Part No.

CR413
CR440

4802245J62
4813833C02

D601
D602
D603
D604
D605
D606
E400
E401
E402
E403
E404
E405
E406
E407
E408
E409
E634
E637
E638
E639
E640
E641
E642
E643
E644
E645
E701
E702
E703
E704
FL401
J400
J403
J702
L400
L401
L410
L411
M604
M605
M606
M607
M608
M609
M610
M611
M612
M613

4880479U01
4880479U01
4880479U01
4880479U01
4880479U01
4880479U01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
2480640Z01
4870368G02
0902042P03
0909059E04
0905505Y03
2462587Q42
2462587Q42
2462587Q42
2462587Q42
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED

Description
Diode Schottky
Dual Diode, Common Cathode
LED
LED
LED
LED
LED
LED
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Bead
Reflowable Clock Osc X'tal
40 Pins Connector
20 Pins Connector
Conn ZIF Horizontal
390 nH, 10%
390 nH, 10%
390 nH, 10%
390 nH, 10%

Circuit
Ref
M614
M615
M616
M617
M618
M619
M620
M621
Q400
Q403
Q405
Q410
Q416
Q417
Q601
Q602
Q603
R400
R406
R408
R409
R410
R411
R413
R414
R415
R416
R418
R419
R420
R421
R423
R424
R425
R426
R427
R428
R429
R431
R432
R434
R435
R436
R437
R447
R448
R450
R451
R452
R453
R454

Motorola
Part No.
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
4809579E18
4813824A17
4802245J54
4802245J54
4809579E18
4809939C05
4813824A17
4813824A10
4813824A10
0662057N15
0662057N20
NOT PLACED
0662057M98
0662057N23
0662057M98
0662057M01
0662057V34
0662057V26
0662057M98
0662057M01
0662057M67
0662057B46
0662057M81
0662057N39
0662057N12
0662057N10
0662057N35
0662057M84
0662057M10
0662057N20
0662057N39
0662057N16
0662057M62
0662057M81
0662057M01
NOT PLACED
0662057N23
0662057M98
0683962T45
0662057N03
0662057N23
NOT PLACED
NOT PLACED

Description

TSTR MOSFET
XSTR PNP 40V
Digital Transistor
Digital Transistor
TSTR MOSFET
Transistor Dual NPN / PNP
XSTR PNP 40V
Transistor NPN
Transistor NPN
47 k, 5%
75 k, 5%
10 k, 5%
100 k, 5%
10 k, 5%
0 , 5%
180 k, 1%
91 k, 1%
10 k, 5%
0 , 5%
510 , 5%
10.0 M, 5%
2000 , 5%
470 k, 5%
36 k, 5%
30 k, 5%
330 k, 5%
2700 , 5%
2.2 , 5%
75 k, 5%
470 k, 5%
51 k, 5%
330 , 5%
2000 , 5%
0 , 5%
100 k, 5%
10 k, 5%
68
15 k, 5%
100 k, 5%

4-32

Circuit
Ref
R455
R456
R457
R460
R461
R462
R463
R471
R472
R473
R475
R476
R477
R478
R481
R492
R498
R499
R601
R602
R603
R604
R605
R606
R607
R608
R609
R610
R611
R612
R613
R618
R619
R620
R621
R622
R623
R632
R633
R646
R647
R648
R649
R721
R722
RT400
TP401
TP402
TP405
TP406
TP410

Motorola
Part No.
NOT PLACED
0662057M01
0662057M98
0662057M90
0662057M56
0662057M98
0662057M61
0662057N06
0662057N12
0662057M26
0662057M01
0662057N08
0662057M74
0662057M98
0662057N08
0662057M01
0662057M98
0662057M98
0662057V20
0662057V20
0662057V05
0662057V11
0662057V18
0662057V30
0662057V05
0662057V11
0662057V18
0662057V30
0662057N16
0662057N41
0662057N47
0662057M74
0662057M74
0662057M74
0662057M74
0662057M74
0662057M74
0662057N23
0662057N23
0662057N23
0662057M85
0662057N23
0662057N15
NOT PLACED
NOT PLACED
0680590Z01
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED

Description
0 , 5%
10 k, 5%
4700 , 5%
180 , 5%
10 k, 5%
300 , 5%
20 k, 5%
36 k, 5%
10 , 5%
0 , 5%
24 k, 5%
1000 , 5%
10 k, 5%
24 k, 5%
0 , 5%
10 k, 5%
10 k, 5%
51 k, 1%
51 k, 1%
13 k, 1%
22 k, 1%
43 k, 1%
130 k, 1%
13 k, 1%
22 k, 1%
43 k, 1%
130 k, 1%
51 k, 5%
560 k, 5%
1.0 M, 5%
1000 , 5%
1000 , 5%
1000 , 5%
1000 , 5%
1000 , 5%
1000 , 5%
100 k, 5%
100 k, 5%
100 k, 5%
3000 , 5%
100 k, 5%
47 k, 5%
Thermistor 33k

Circuit
Ref
TP415
U400
U404
U405
U406
U407
U409
U410
U420
U602
VR432
VR433
VR445
VR446
VR447
VR448
VR449
VR450

Motorola
Part No.
NOT PLACED
5102463J40
5185130C53
NOT PLACED
*5102463J60
*5102463J64
5102226J56
5102463J57
5102463J44
5102463J49
4805656W08
4805656W08
4880140L15
4880140L15
4880140L15
4880140L15
4880140L15
4880140L15

Description
3.3V Regulator
ASFIC CMP
Flash ROM 512K x 8
EEPROM 16K x 8
Microprocessor IC
3.3V Regulator
Audio Amplifier
Comparator CMOS
Quad Zener Diode
Quad Zener Diode
10V Zener
10V Zener
10V Zener
10V Zener
10V Zener
10V Zener

Note: E401 through E409 are NOT PLACED in
8404056G01
* Motorola Depot Servicing only

5A-1

Section 5A
MODEL CHART AND TEST SPECIFICATIONS (136-174
MHZ)
1.0

Model Chart

GP Series, VHF, 136-174 MHz
Model

Description

AZH38KDC9AA2

GP328 Plus 136-174 MHz 5W 4CH

AZH38KDC9AA3

GP328 Plus 136-174 MHz 5W 16 CH

AZH38KDH9AA6

GP338 Plus 136-174 MHz 5W 128 CH

AZH38KDH9DU6

Item
X

GP338 XLS 136-174 MHz 5W 160 CH

Description

PMUD1892_

GP328 Plus Super Tanapa 136-174 MHz 5W 4CH

PMUD1673_

GP328 Plus Super Tanapa 136-174 MHz 5W 16CH

PMUD1674_

GP338 Plus Super Tanapa 136-174 MHz 5W 128CH

PMUD1770_

GP338 XLS Super Tanapa 136-174 MHz 5W 160CH

PMUD1893_

GP328 Plus Tanapa 136-174 MHz 5W 4CH

PMUD1677_

GP328 Plus Tanapa 136-174 MHz 5W 16CH

PMUD1678_

GP338 Plus Tanapa 136-174 MHz 5W 128CH

PMUD1771_

GP338 XLS Tanapa 136-174 MHz 5W 160CH

PMHD4021_

GP328 Plus B/C Kit 136-174 MHz 5W 4CH

JMHD4005_

GP328 Plus B/C Kit 136-174 MHz 5W 16CH

PMHD4006_

GP338 Plus B/C Kit 136-174 MHz 5W 128CH

PMHD4014_

GP338 XLS B/C Kit 136-174 MHz 5W 160CH

PMHD4020_

GP328 Plus Front Housing Kit 4CH

PMHD4000_

GP328 Plus Front Housing Kit 16CH

PMHD4001_

GP338 Plus Front Housing Kit 128CH

X

PMHD4013_

GP338 XLS Front Housing Kit 160CH

X
X
X
X
X
X
X
X
X
X
X
X
X
X
X

X

X

X

PMAD4012_

Antenna, 136-155 MHz Stubby

X

X

X

X

PMAD4013_

Antenna,155-174 MHz Stubby

X

X

X

X

PMAD4014_

Antenna, 136-155 MHz 14 cm

X

X

X

X

PMAD4015_

Antenna, 155-174 MHz 14 cm

X

X

X

X

PMAD4023_

Antenna, 150-161 MHz 14 cm

X

X

X

X

PMAD4025_

Antenna 150-161 MHz Stubby

X

X

6804022G48

GP328 Plus User Guide

6804112J64

GP338 Plus User Guide

6804114J01

GP338 XLS User Guide

X
X

x = Indicates one of each is required.

5A-2

2.0

Specifications (for GP328 Plus)

Specifications (for GP328
Plus)
General
VHF

Transmitter
VHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
5W

Frequency:

136-174 MHz

Frequency

136-174 MHz

Channel Capacity:

GP328 Plus : 4/16 Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz
+1, -3 dB

101.5mm x 55.5mm x
35.5mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

<5%

250 g

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery

7.5 Volts ±20%
101.5mm x 55.5mm x
30.5mm

270 g

Receiver

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery

Low
Power

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

VHF
12.5kHz

VHF 20/
25kHz

Frequency:

136174MHz

136174MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:

Meets MIL-STD-810C,D & E and TIA/EIA 603

FCC ID

AZ489FT3801

All specifications are subject to change without notice.

Specifications (for GP338 Plus/GP338 XLS)

3.0

5A-3

Specifications (for GP338
Plus/GP338 XLS)
General
VHF

Transmitter
VHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
5W

Frequency:

136-174 MHz

Frequency

136-174 MHz

Channel Capacity:

GP338 Plus 128 Channels/GP338 XLS 160
Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

7.5 Volts ±20%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz

101.5mm x 55.5mm x
33.0mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

+1, -3 dB

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.

<5%

FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

101.5mm x 55.5mm x
38.0mm

265 g

Receiver

285 g

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery

Low
Power

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Sealing:

Meets MIL-STD-810-C,
D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:
FCC ID

Meets MIL-STD-810C,D & E and TIA/EIA 603
AZ489FT3801

VHF
12.5kHz

VHF 20/
25kHz

Frequency:

136174MHz

136174MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

All specifications are subject to change without notice.

5A-4

4.0

Transmitter

Transmitter

PCIC

From VCO

Antenna
Jack

Vcontrol

Vcontrol

PA
Driver

PA-Final
Stage

Antenna Switch/
Harmonic Filter/
Matching Network

Figure 5-1: Transmitter Block Diagram

4.1

General
(Refer to Figure 5-1)
The VHF transmitter contains five basic circuits:
1. Power Amplifier
2. Antenna Switch
3. Harmonic Filter
4. Antenna Matching Network
5. Power Control Integrated Circuit (PCIC).

4.1.1 Power Amplifier
The power amplifier consists of two devices:
1. 9Z67 LDMOS driver IC (U3501) and
2. PRF1507 LDMOS PA (Q3501).
The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V.
This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input
signal of 2mW (3dBm) (pin16). The current drain would typically be 130mA while operating in the
frequency range of 136-174MHz.
The PRF1507 LDMOS PA is capable of supplying an output power of 7W with an input signal of 0.3W.
The current drain would typically be 1800mA while operating in the frequency range of 136-174MHz.
The power output can be varied by changing the biasing voltage.

Transmitter

5A-5

4.1.2 Antenna Switch
The antenna switch circuit consists of two PIN diodes (D3521 and D3551), a pi network (C3531,
L3551 and C3550), and two current limiting resistors (R3571, R3572, R3573 ). In the transmit mode,
B+ at PCIC (U3502) pin 23 will go low and turn on Q3561 where a B+ bias is applied to the antenna
switch circuit to bias the diodes "on". The shunt diode (D3551) shorts out the receiver port, and the pi
network, which operates as a quarter wave transmission line, transforms the low impedance of the
shunt diode to a high impedance at the input of the harmonic filter. In the receive mode, the diodes
are both off, and hence, there exists a low attenuation path between the antenna and receiver ports.

4.1.3 Harmonic Filter
The harmonic filter consists of C3532 to C3536, L3531 and L3532. This network forms a low-pass
filter to attenuate harmonic energy of the transmitter to specifications level. The harmonic filter
insertion loss should be less than 1.2dB.

4.1.4 Antenna Matching Network
A matching network which is made up of L3538 and C3537 is used to match the antenna's
impedance to the harmonic filter. This will optimize the performance of the transmitter and receiver
into an antenna.

4.1.5 Power Control Integrated Circuit (PCIC)
The transmitter uses the Power Control IC (PCIC), U3502 to control the power output of the radio by
maintaining the radio current drain. The current to the final stage of the power module is supplied
through R3519 (0.1ohms), which provides a voltage proportional to the current drain. This voltage is
then fedback to the Automatic Level Control (ALC) within the PCIC to keep the whole loop stable.
The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the
control loop. The voltage level is controlled by the microprocessor through the data line of the PCIC.
There are resistors and integrators within the PCIC, and external capacitors (C3562, C3563 and
C3565) in controlling the transmitter rising and falling time. These are necessary in reducing the
power splatter into adjacent channels.
U3503 and its associated circuitry acts as a temperature cut back circuitry. This circuitry provides the
necessary voltage to the PCIC to cut the transmitter power when the radio temperature gets too high.

5A-6

5.0

Receiver

Receiver
Antenna

RF Jack

Pin Diode
Antenna
Switch

Varactor
Tuned Filter

RF Amp

Varactor
Tuned Filter

Mixer

Crystal
Filter

IF Amp

AGC

Control Voltage
from ASFIC

First LO
from FGU

Recovered Audio
Squelch

Demodulator
U3220

RSSI
IF

16.8 MHz
Reference Clock

IC

Synthesizer

SPI Bus
Second
LO VCO

Figure 5-2: VHF Receiver Block Diagram

5.1

Receiver Front-End
(Refer to VHF Receiver Front End Schematic Diagram on page 5A-22, VHF Receiver Back End
Schematic Diagram on page 5A-23, and VHF Transmitter Schematic Diagram on page 5A-26)
The RF signal is received by the antenna and applied to a low-pass filter. For VHF, the filter consists
of L3531, L3532, C3532 to C3563. The filtered RF signal is passed through the antenna switch. The
antenna switch circuit consists of two PIN diodes(D3521 and D3551) and a pi network (C3531, L3551
and C3550).The signal is then applied to a varactor tuned bandpass filter. The VHF bandpass filter
comprises of L3301, L3303, C3301 to C3304 and D3301. The bandpass filter is tuned by applying a
control voltage to the varactor diode (D3301) in the filter.
The bandpass filter is electronically tuned by the DACRx from IC404 which is controlled by the
microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the
varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter
across the band.
The output of the bandpass filter is coupled to the RF amplifier transistor Q3302 via C3306. After
being amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned
bandpass filter, consisting of L3305, L3306, C3311 to C3314 and D3302.
Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth
of the filter is about 12 MHz. This enables the filters to be electronically controlled by using a single
control voltage which is DACRx .

Receiver

5A-7

The output of the post-RF amplifier filter is connected to the passive double balanced mixer which
consists of T3301, T3302 and CR3301. Matching of the filter to the mixer is provided by C3317,
C3318 and L3308. After mixing with the first LO signal from the voltage controlled oscillator (VCO)
using high side injection, the RF signal is down-converted to the 45.1 MHz IF signal.
The IF signal coming out of the mixer is transfered to the crystal filter (Y3200) through a resistor pad
(R3321 - R3323) and a diplexer (C3320 and L3309). Matching to the input of the crystal filter is
provided by C3200 and L3200. The crystal filter provides the necessary selectivity and
intermodulation protection.

5.2

Receiver Back-End
(Refer to VHF Receiver Back End Schematic Diagram on page 5A-23)
The output of crystal filter Y3200 is matched to the input of IF amplifier transistor Q3200 by capacitor
C3203. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5). The gain controlled IF
amplifer provides a maximum gain of about 10dB. The amplified IF signal is then coupled into
U3220(pin 3) via L3202, C3207, and C3230 which provides the matching for the IF amplifier and
U3220.
The IF signal applied to pin 3 of U3220 is amplified, down-converted, filtered, and demodulated, to
produce the recovered audio at pin 27 of U3220. This IF IC is electronically programmable, and the
amount of filtering (which is dependent on the radio channel spacing) is controlled by the
microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is
replaced by internal filters in the IF module (U3220).
The IF IC uses a type of direct conversion process, whereby the externally generated second LO
frequency is divided by two in U3220 so that it is very close to the first IF frequency. The IF IC (U3220)
synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO
is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF
IC.
In the absence of an IF signal, the VCO will “search” for a frequency, or its frequency will vary close to
twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The
second LO/VCO is a Colpitts oscillator built around transistor Q3270. The VCO has a varactor diode,
D3270, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter
consisting of C3278 to C3280, R3274 and R3275.
The IF IC (U3220) also performs several other functions. It provides a received signal-strength
indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor,
and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The
RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end.
The demodulated signal on pin 27 of U3220 is also used for squelch control. The signal is routed to
U404 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio
signal is also routed to U404 for processing before going to the audio amplifier for amplification.

5A-8

5.3

Receiver

Automatic Gain Control Circuit
(Refer to VHF Receiver Front End Schematic Diagram on page 5A-22 and VHF Receiver Back End
Schematic Diagram on page 5A-23)
The front end automatic gain control circuit provides automatic reduction of gain, of the front end RF
amplifier via feedback. This action is necessary to prevent overloading of back end circuits. This is
achieved by drawing some of the output power from the RF amplifier output. At high radio
frequencies, capacitor C3327 provides the low impedance path to ground for this purpose. CR3302 is
a PIN diode used for switching the path on or off. A certain amount of forward biasing current is
needed to turn the PIN diode on. Transistor Q3301 provides this current.
Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q3301 to saturation i.e.
turned on. RSSI is produced by U3220 and is proportional to the gain of the RF amplifier and the input
power to the radio.
Resistors R3304 and R3305 are voltage dividers designed to turn on Q3301 at certain RSSI levels. In
order to turn on Q3301 the voltage across R3305 must be greater or equal to the voltage across
R3324, plus the base-emitter voltage (Vbe) present at Q3301. Capacitor C3209 is used to dampen
any instability while the AGC is turning on. The current flowing into the collector of Q3301, a high
current gain NPN transistor, will be drawn through the PIN diode to turn it on. Maximum current
flowing through the PIN is limited by the resistors R3316, R3313, R3306 and R3324. C3326 is a
feedback capacitor used to provide some stability to this high gain stage.
An additional gain control circuit is formed by Q3201 and its associated circuitry. Resistors R3206 and
R3207 are voltage dividers designed to turn on Q3201 at a significantly higher RSSI level than the
level required to turn on PIN diode control transistor Q3301. In order to turn on Q3201 the voltage
across R3207 must be greater or equal to the voltage across R3208, plus the base-emitter voltage
(Vbe) present at Q3201. As current starts flowing into the collector of Q3201, it reduces the bias
voltage at the base of IF amplifier transistor Q3200 and in turn, the gain of the IF amplifier. The gain
can be controlled in a range of -30dB up to +10dB.

Frequency Generation Circuitry

6.0

5A-9

Frequency Generation Circuitry

Voltage
Multiplier

TRB

VCP
Aux3
Vmult1
Vmult2

Synthesizer
U3701

16.8 MHz
Ref. Osc.
MOD Out

Rx VCO Circuit

Loop
Filter

Rx Out

To
Mixer

VCOBIC
U3801
Tx Out

To
PA Driver

Tx VCO
Circuit

Modulating
Signal

Figure 5-3: Frequency Generation Unit Block Diagram
The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer
(U3701), and the VCO/Buffer IC (U3801). Designed in conjunction to maximize compatibility, the two
ICs provide many of the functions that normally would require additional circuitry. The synthesizer
block diagram illustrates the interconnect and support circuitry used in the region. Refer to the
relevant schematics for the reference designators.
The synthesizer is powered by regulated 5V and 3.3V which come from U3711 and U3201
respectively. The synthesizer in turn generates a superfiltered 4.5V which powers U3801.
In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry.
Programming for the synthesizer is accomplished through the data , clock and chip select lines from
the microprocessor. A 3.3V dc signal from synthesizer lock detect line indicates to the microprocessor
that the synthesizer is locked.
Transmit modulation from the ASFIC is supplied to pin10 of U3701. Internally the audio is digitized by
the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs
through an internal attenuator for modulation balancing purposes before going out to the VCO.

5A-10

6.1

Frequency Generation Circuitry

Synthesizer
(Refer toVHF Synthesizer Schematic Diagram on page 5A-24)
The Fractional-N Synthesizer uses a 16.8MHz crystal (Y3761) to provide a reference for the system.
The LVFractN IC (U3701) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference
frequencies. Together with C3761, C3762, C3763, R3761 and D3761 , they build up the reference
oscillator which is capable of 2.5ppm stability over temperatures of -30 to 85°C. It also provides
16.8MHz at pin 19 of U3701 to be used by ASFIC and LVZIF.
The loop filter which consist of C3721, C3722, R3721, R3722 and R3723 provides the necessary dc
steering voltage for the VCO and determines the amount of noise and spur passing through .
In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at
pin 45 of U3701 to put synthesizer within the lock range. The required frequency is then locked by
normal mode charge pump at pin 43 .
Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which
is made up of C3701 to C3704 and triple diodes D3701, D3702. Two 3.3V square waves ( 180 deg
out of phase) are first multiplied by four and then shifted, along with regulated 5V, to build up 13.5V at
pin 47 of U3701.

DATA (U409 PIN 100)
CLOCK (U409 PIN 1)

7
8
9

CSX (U409 PIN 2)
MOD IN (U404 PIN 40)

10
13, 30

+5V (U3711 PIN 4)

5, 20, 34, 36
(U3201 PIN 5)
23
REFERENCE
OSCILLATOR

24
25
32
47

VOLTAGE
MULTIPLIER

LOCK

4

LOCK (U409 PIN 56)

FREFOUT

19

FREF (U3220 PIN 21 & U404 PIN 34)

DATA
CLK

GND
U3701
LOW VOLTAGE
MODIN
FRACTIONAL-N
IOUT
SYNTHESIZER IADAPT
VCC, DC5V

6, 22, 23, 24

CEX

MODOUT

VDD, 3.3V

43
45

AUX4

3

XTAL2

AUX3

2

SFOUT

2-POLE
LOOP
FILTER

41

XTAL1

WARP

STEERING
LINE

LO RF INJECTION

28 FILTERED 5V

PREIN
BIAS1

VCP
VMULT2
14

VMULT1 AUX1 BIAS2
15

48

VOLTAGE
CONTROLLED
OSCILLATOR

40
TX RF INJECTION
(1ST STAGE OF PA)

39

DUAL
5V TSTRS

R5

PRESCALER IN

Figure 5-4: Synthesizer Block Diagram

Frequency Generation Circuitry

6.2

5A-11

VCO - Voltage Controlled Oscillator
(Refer toVHF Voltage Controlled Oscillator Schematic Diagram on page 5A-25)

AUX3 (U3701 Pin2)

Pin 20
Rx-SW

Pin7

Tx-SW

Pin13

(U3701 Pin28)
VSF
Steer Line
Voltage
(VCTRL)

U3701 Pin 32

Prescaler Out

TRB_IN
Pin 19

Pin 12

TX/RX/BS
Switching Network

Vcc-Superfilter
Pin3

LO RF INJECTION

Presc

U3801
VCOBIC

Matching
Network

Low Pass
Filter

Collector/RF in
Pin4

RX Tank

RX VCO
Circuit

TX VCO
Circuit

Rx
Active Bias

Pin5
Pin6

TX Tank

RX

RX

Pin8
VSF
Pin14

TX

Pin16
Pin15

Tx
Active Bias

TX

Pin10

Vcc-Logic

TX RF Injection
Attenuator

Vsens
Circuit

Pin18

(3701 Pin28)
VCC Buffers

Pin2

Pin1

Rx-I adjust

Tx-I adjust

Pins 9,11,17

VSF
(U3701 Pin28)

Figure 5-5: VCO Block Diagram
The VCOBIC (U3801) in conjunction with the Fractional-N synthesizer (U3701) generates RF in both
the receive and the transmit modes of operation. The TRB line (U3801 pin 19) determines which
oscillator and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed
from U3801 pin 12, through a low pass filter, to the prescaler input (U3701 pin 32). After frequency
comparison in the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage
is a DC voltage typically between 3.5V and 9.5V when the PLL is locked on frequency.

5A-12

Frequency Generation Circuitry

The RF section of the VCOBIC(U3801) is operated at 4.54 V (VSF), while the control section of the
VCOBIC and Fractional-N synthesizer (U3701) is operated at 3.3V. The operation logic is shown in
Table 5-1.
Table 5-1: VCO Control Logic

Desired
Mode

AUX 4

AUX 3

TRB

Tx

n.u.

High (@3.2V)

High (@3.2V)

Rx

n.u.

Low

Low

Battery Saver

n.u.

Hi-Z/Float
(@1.6V)

Hi-Z/Float (@1.6V)

In the receive mode, U3801 pin 19 is low or grounded. This activates the receive VCO by enabling the
receive oscillator and the receive buffer of U3801. The RF signal at U3801 pin 8 is run through a
matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at
T3302.
During the transmit condition, when PTT is depressed, 3.2 volts is applied to U3801 pin 19. This
activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U3801. The
RF signal at U3801 pin 10 is injected into the input of the PA module (U3501 pin16). This RF signal is
the TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the
carrier is received through U3701 pin 41.
When a high impedance is applied to U3801 pin19, the VCO is operating in BATTERY SAVER mode.
In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler
buffer are turned off.

Notes For All Schematics and Circuit Boards

7.0

5A-13

Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads
(pF) or microfarads (µF).
2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with
the voltage probe to prevent circuit loading.
3. Reference Designators are assigned in the following manner:
400/500 Series =

Controller

600 Series

=

Keypad Board

3200 Series

=

IF Circuitry

3300 Series

=

Receiver

3500 Series

=

Transmitter

3700 and
3800 Series

=

Frequency Generation

4. Interconnect Tie Point Legend:
UNSWB+

=

Unswitch Battery Voltage (7.5V)

SWB+

=

Switch Battery Voltage (7.5V)

R5

=

Receiver Five Volts

CLK

=

Clock

Vdda

=

Regulated 3.3 Volts (for analog)

Vddd

=

Regulated 3.3 Volts (for digital)

CSX

=

Chip Select Line (not for LVZIF)

SYN

=

Synthesizer

DACRX

=

Digital to Analog Voltage (For Receiver Front End Filter)

VSF

=

Voltage Super Filtered (5 volts)

VR

=

Voltage Regulator

6-LAYER CIRCUIT BOARD DETAIL VIEWING
COPPER STEPS IN PROPER LAYER SEQUENCE
SIDE 1
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
SIDE 2

INNER LAYERS

5A-14

Notes For All Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

Circuit Board/Schematic Diagrams and Parts List

C521

Circuit Board/Schematic Diagrams and Parts List

VR444
PB501

C3212

R3828

L3305

C3276

C3275 C3274

R3271

R3270

C3273

R502
C514

C511

C3309

R3312

C3308

C3306

C3338

L3306

R3311 R3316

3

4

CR503
2
R501

C3550

C3514

R3501

C3504

L3551

1

R3548

C3535

C3524
C3525

C3518

L3518

C3528

C3534

L3522

C3527

R3513

C3519

R3512
R3547

R3546 R3544

R3502 R3503 C3501 C3505 L3503

R3545

16

L3822

C3503 C3502

C3546

L3501

3

L3531

C3532

C3547

9

L3823

C3544 C3542

U3501

R3542 C3543 R3541

1

R3543 C3541

8

L3521
2

PB505

C3552

SH3501

C3517

L3513

C3533

R3551

C3523

D3521

R3507

C3521

C3531

L3515

C3551

L3504

L3552

L3512

L3511

R3505

C3835

R3273

C3225

R3272

C3209
C3331

C3332

C3314 C3313 C3312 C3311

Q3302

C520

R3506

C3830 C3825 C3824

SH3801

L3271

R3276

C3271

C3215

C3327

D3302

D3551

R3821

C3822

R3822

Q502

L3304

4

3

6

L3821

D3821

L3833

C3280

C3208

T3301

C513

C3513
C3512

C3829

C3826

C3828

R3835

R3836

6

T3302
R3318

R3317

CR3303

C3334

L3825
L3832

Q505

SH3302

L3824

C3836 C3834

R506

C512

Q3501

D3831

L3270

R3313
R3309 R3308 R3310

R3752 R3721

R3833 R3834

L3831

R3274

SH3303
C3330

C3318

R3323

3

4

L3312

R3823

L3834

Q3270

C3307

R3321
L3309

SH3701

C3832 C3833

VR501

SH3201

C3310

C3724

C3722

C3706

D3832

C3277

R505

C3319

R3751

C3754

C3752

C3753

R3722

C3721

TP3301

40

L3202

C3329

C3320

R3723
4
Q3721
3

R3275
C3278

R3213

R3322

C3710

C3746

C3214

C3272

C3202

C3745

C3744
C3714

C3279

R3226

R3225

SH3203

C3335

C3743

R3201 C3207

R3204

L3201
R3205

U3711

C3742

R3212

Q3200

C3201 C3200
C3711

C3713

C3715

C3741

C3712

R3741

R3701

TP3701

R3211

L3200

C3210

R3218

C3203
TP3702

J200

R3203

4

C3270

Q3202

Y3200

R3210

B504

R3202

C3206

B503

U3201

R3209

Q3201

R3208

Y3761

C3213
C502

C3204

3

6

R3206

R3207

1

C505

R3200

C522

PB504

R3214

PB502

D3270

C3205
1

C3842

8.0

5A-15

L3538

C3539

L3532
C3537
C3536

SH3502

ZMY0130792-O

VHF (136-174MHz) Main Board Top Side PCB No. 8404055G05/G06/G07

5A-16

Circuit Board/Schematic Diagrams and Parts List

VR440

VR441

L505

C3228

VHF (136-174MHz) Main Board Bottom Side
PCB No. 8404055G05/G06/G07

C3763

D3761
C3707

R3761

C530
C532
C534
C536
C538
C540
C542
C555
R509

C547

TP3502
R3573

R3572

R3571

C3560

C3568

D3702

C3709 C3704
R3705

C3734

C551

L3731

C3733

C3705

R3829

R3830

C3815

R3816

C3816

R3817

11

01

R3832

L3813

L3816

R3831

1

02

C3827

1083U

R3824 C3821

L3812

R3818

R3826

C3813

3283C

R3825

R3812

C3812

L3809

17

9

R3808

R3805

C3809

C3565

C3570

C3569 R3566

C3571

J3501

C3805
1083Q

L3826

C3806

U3502

C3803

R3806

25

R3811 C3810

1

L3811

R3564

L3801

R3561

C3804
R3802

Q3561

C3566

C550

SH3802
R3803

R3804

R3807 C3801

C3808

C3515

C3563

L3523

C3731

C3755

R3801
C3508

C3509

C3802

L3519

U3503

C3564

VR3501

C3725

R3565
C3526

1

37

R3726

R3519

4

2

C528

C548

C3708 R3702

R3320

C3562

ZMY0130793-O

C546

C3701

C3818

RT3301

R3305

R3569 R3570

R3301

H3501

1

C545

D3701

U3701

C3336

C3561 C3567

J3502

R3704

C3703

C3726

C3516

3

R3703

13

C3727

R3727

C503

C3317

L3308

R3306 R3324

R3562

C3326

C3315

C3316

R3314

C3324

R3315

C3325

SH3702

25

CR3301

L3303

C3337

R3563

2

C3339

R3319

L3301

4

C539
C541

C3702

F501

CR3302

R3304

C3305
C3302 C3303 C3304

R3307

C3301

C

D3301

C537

C526

C549
SH3301

Q3301

S501

C3321

R3303

8

C

C3323

SH3202

C535

C544

C3732

R3221

L3221

C531

C543

3

C523

C3322

C3751

4

C3735

L3701

C3229

3

R3763

C3218

C3238

C3226

C3239

R3220

C3220

1

C3234

C3233

C3232

37
C3231

C3221

C3230

C3761

C3235

Y3762

CR501

2

C529

C533

R3760

U3220

VR506

C3244

B501

R3762

C3243

5

3

2

C3811

C3237 R3223

R3222

13

C3211

25

1

C527

C3762

C3241

R3224

C3227

C3222

C3236

R3219

C3224

2

S502

C3242

C3240

C525

C3219

C3223

VR439

4

C553

C552

5A-17

R3318

L3305

C502
VR501

L3271

C513

R3311 R3316
R3312

R502

L3822

9

CR503

4
2

1

16

L3501
C3503

R3502 R3503
C3505
C3501
R3501
C3504

3

C3502

C3551

L3551

L3531
C3535

C3532

L3538

C3539

C3524

C3518

R3548

PB505

C3552

C3531

L3521
1

C3533

SH3501

2

L3552

L3518

C3534
C3525
C3528

D3521

L3823

3

R501

R3551

C3550

C3519
R3513

8

C3523

C3517
C3514

L3503

C3830 C3825 C3824

Q502

L3304
Q3302

D3551

C3521

C3527

R3507
L3513
R3506

L3821

D3821

L3825

SH3801

D3270
C512

C511
C514

L3306

R505

C3309

C3311

C3312

L3522

L3504

L3515

R3543 C3541
C3544 C3542
R3542
C3543 R3541
C3547 R3545
C3546 R3544
R3546 R3512
R3547

R3828
R3822

R3505

L3833

L3270

C3274

R3272

C3225

C3272
C3273
R3270
R3271
C3275
R3273
C3276
C3327

Q505

C520

L3512

L3511

U3501
L3832

R3276
C3280

C3271

C3215

U3201
C3209
R3218
C3332
C3331

SH3303
R3313

C3330
D3302

Q3501

D3831 C3835
C3836 C3834

R506

C3513
C3512

C3822
R3821

R3823 C3828
C3826
C3829

L3824

L3831

R3275 C3277

C3278
R3274

SH3302

R3836
R3835

D3832

C3832 C3833
R3833 R3834

C505

R3214

R3206
C3208
4

3

6

Q3270

R3213

C3314 C3313

T3301

C3279

C3334
SH3701

L3834

C3318
6

3
4
T3302

R3225
C3214

C3308

L3312

C3270
R3226

C3306

C3724

L3309

R3317

SH3201

CR3303

C3722
R3752 R3721

TP3301

C3329

R3322
R3321
R3323

C3213

C3310
C3338 C3307
R3309 R3308R3310

C3706

C3721

C3752
C3754
R3751

C3753

Q3721
4
3 R3722

L3202

C3319

C3744
C3746

C3714

C3842

40

C3710
R3723

C3320

C3743 C3745

R3204
R3205

R3212
R3201 C3207

SH3203

C3335

U3711

C3742

C3711

C3713

C3201 C3200

C3715

C3741

C3712

R3741

R3701

TP3701

R3202
C3210

Q3202

L3200

R3203
C3203
L3201

TP3702

J200

R3211
C3202

4

R3209

PB504

VR444
C3212

C3204

Y3200

Q3200
R3210 Q3201

6

PB501

R3208 R3207

Y3761

B504

B503

3

1

PB502

R3200

C522

1

C3206

C3205

C521

Circuit Board/Schematic Diagrams and Parts List

L3532
C3537
C3536

SH3502

ZMY0130792-A

VHF (136-174MHz) Main Board Top Side PCB No. 8404055G09

5A-18

Circuit Board/Schematic Diagrams and Parts List

VR440

L3523

R3573 R3572 R3571

C3560

C3568

L3812

C3763
R3761

R3760
D3701
R3705

L3731

C3734

R3831

R3816

11

C3816

R3832
10

L3813

L3816

U3801

ZMY0130793-A

VHF (136-174MHz) Main Board Bottom Side PCB No. 8404055G09

C3705

C3815

20

C526
C528
C530
C532
C534
C536
C538
C540
C542
C555
R509
C547

C550

R3830
R3829

R3826

C3813
1

C3812

C3823

R3808
R3825

R3806
R3824 C3821
C3806

C3802

Q3801
R3805

C3827

R3812

C525
C527
C529
C531
C533
C535
C537
C539
C541
C543
C544
C545
C546
C548
C549

D3702

C3709 C3704

C3761
C3732
C3731

C3707

R3762

R3727C3755
C3727
R3802
C3808

C3804

L3801

Q3561
R3569 R3570

L3826

SH3802

R3817

TP3502

C3561 C3567
R3564
25
1
C3562
C3563
U3502
R3565
9
17
C3565

R3803
C3803
R3804

R3818
C3818

1

1

C3809
C3811
R3811

2

C3526 C3569 R3566

C3566
R3561

R3807 C3801

L3809

J3502

4
3

C3509

C3508

R3801

C3751

C3708 R3702

R3726
C3725

L3519

C3515

H3501

J3501

U3701

R3320

R3519
C3564

VR3501

C3516

C3703
C3701
C3702

13

37

C3570

R3305

C3571

L3308
R3301 RT3301

R3562

C3326

R3703
R3704

25

C3336

R3563

C3325

SH3702

C3726

CR3301

C3316
C3315

C3323
C3324

L3303

C523

U3503

L3301

2

R3306 R3324

C503

C3317

R3319

4

C3337

R3304

C

F501
C3339

CR3302

Q3301

S501
C

R3303
C3305
C3302 C3303 C3304
D3301

C3321
R3315
R3314
R3307

C3301

8

SH3301

C3762

3

4

3

C3733

R3763
C3735

SH3202
C3322

D3761

L505
VR439

C3222

L3221

C3221

C3805

C3229

CR501

L3701

C3226

C3239

C3238

1

37

C3234

C3220
R3220
R3221

C3230
C3233

C3232

C3231

C3235

Y3762

2

C3810

U3220

B501

2

VR506

L3811

5

3

C3243
C3244

C3218

C3224

1

C3211

C3236
C3237 R3223

13

25

C3219
C3223
R3219
C3227
R3222

C3228

2

S502

C3241

C3240
R3224

C3242

4

VR441

C551
C553

C552

Circuit Board/Schematic Diagrams and Parts List

C525
470pF

C526
470pF

C527
470pF

C528
470pF

5A-19

C529
470pF

C530
470pF

C531
470pF

C532
470pF

C533
470pF

C534
470pF

C535
470pF

C536
470pF

C537
470pF

C538
470pF

R509
NU

J200-21

PTT
SB1
SB2
SB3
EMER
VOL
RED_LED
GREEN_LED
MECH_SWB+
RTA0
RTA1
RTA2
RTA3
RSSI
CLK
DATA
LVZIF_SEL
CSX
BATT_CODE

16_8MHz_2_SW

16_8MHz_1_SW

16.8MHz
J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20

5V_2_SW

5V_1_SW

5V

5V_4_SW

5V_3_SW

CLK_4_SW

CLK_1_SW CLK_2_SW CLK_3_SW

CLK

5V_5_SW

5V_6_SW

CLK_5_SW

CSX_1_SW CSX_2_SW

CSX
DACRx_1_SW

DACRX_2_SW

DACRx
DATA_1_SW DATA_2_SW DATA_3_SW DATA_4_SW

DATA

RSSI_1_SW

RSSI_2_SW

RESET_1_SW

RESET_2_SW

DATA_5_SW

RSSI

LI_ION
RESET

C555
470pF

LVZIF_SEL_1_SW LVZIF_SEL_2_SW

LVZIF_SEL

DEMOD_1_SW

DEMOD_2_SW

DEMOD
J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31

DEMOD
SWB+
5V
Vdda
16.8MHz
SB3_1_SW

MODIN

SB3

J200-32

RTA1
RTA0
EMER
SB2
RTA2

UNSWB+

J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40

LI_ION_1_SW

LI_ION

LI_ION
BATT_CODE_1_SW

BATT_CODE
LOCK
RESET
DACRX

C539
NU

C540
NU

C541
NU

C542
NU

C543
NU

C544
470pF

C545
470pF

C546
470pF

C547
470pF

C548
NU

C549
470pF

C550
470pF

C551
470pF

C552
470pF

C553
470pF

SWB+
Vdda

BATT_CODE

SB1

GREEN_LED

PTT

GREEN_LED_1_SW

GREEN_LED
RED_LED

RTA3

RED_LED_1_SW
SWB+_1_SW SWB+_2_SW

RED_LED
SWB+

Vdda_1_SW

Vdda_2_SW

VOL

SWB+_3_SW

DUMMY

RTA0

EMER_1_SW

EMER

SB2_1_SW

SB2

RTA2_1_SW

RTA2

RTA3_1_SW

RTA3

SB1_1_SW

SB1

PTT_1_SW

PTT

VOL_1_SW
MECHSWB+_1_SW
UNSW+_1_SW

Vdda

RTA1

RTA0_1_SW

MECH_SWB+

Vdda_3_SW

SB3

RTA1_1_SW

UNSWB+_2_SW

UNSWB+

VOL
MECH_SWB+
UNSWB+

ZMY0130788-O

VHF Controls And Switches Schematic Diagram (sheet 1 of 2)

5A-20

Circuit Board/Schematic Diagrams and Parts List

UNSWB+
F501
24V

PB505
SWITCH

24V

SWI
TCH

mgc_comps
S502

1

TAB2

C523 BATT_CODE
1000pF

C503

7

1 A1

LOW

VR439

CR501

1

6

100pF

3 A2

EMER

B2 4

C520

6.8V

.01u
F

10V

PB501
SWITCH

.01uF

12V

1 A1

Vdda
VOL

LI_ION

VR440

B503

C505

B504

6.
8V

100pF

B1 2

SWI
TCH

3 A2

SB1

6.8V
VR501

B1 2

SW
ITCH

390nH

VR506
6.8V

100pF

TAB1

DATA

L505
390nH

1000pF

2

3 HIGH

0.
47uF

POS
NEG B501

C502
0.47uF

2

5

4

MECH_SWB+

6.
8V

B2 4

C521
.01uF
.01uF

100pF

NU

PB504
SWITCH

Vdda
SWB+
1 A1

PTT
Q502

IMX1

IM
X
1

4

B2 4

VR444

10K

1

2

RED_LED

R505
10K

B1 2

SWI
TCH

3 A2

6.
8V

5

NU

Q505
3

PB502
SWITCH

47K

R506

6

GREEN_LED
47K
1 A1

SWI
TCH

3 A2

SB2
VR441
R502
180

R501
680

2

RTA3
RTA0
RTA1
RTA2

1
2
4
C0
C1

4
C511
100pF

VHF Controls And Switches Schematic Diagram (sheet 2 of 2)

C512

C513

100pF

100pF

100pF

100pF

100pF

100pF

C514
100pF

NU

PC0
PC1
PC2

PC3

C0
C1

GND1

3

9

1

S501
SWITCH

GND

CR503

6.
8V

180

7

680

8

C522
.01uF
.01uF

B1 2
B2 4

Circuit Board/Schematic Diagrams and Parts List

5A-21

UNSWB+
F501
24V

PB505
SWITCH

mgc_comps
S502

1

2

POS

4

MECH_SWB+

NEG
5

TAB2

C502
0.47uF

6

1

A1

B1

2

3

A2

B2

4

EMER

VR506
6.8V

VR439

CR501
10V

DATA

L505
390nH

TAB1

1

2

LOW

HIGH
3

C523
1000pF

C503
100pF

7

BATT_CODE

B501

C520
.01uF

12V

PB501
SWITCH

Vdda

1

A1

B1

2

3

A2

B2

4

SB1
LI_ION

VOL

C505
100pF

VR440
8V

C521
.01uF

B504

PB504
SWITCH

Vdda
SWB+

PTT

IMX1
Q502

4

R505
10K

1

A1

B1

2

3

A2

B2

4

VR444
8V

1

2

5

RED_LED

47K
R506

Q505
3

PB502

6

SWITCH

GREEN_LED
47K

SB2

1

A1

B1

2

3

A2

B2

4

VR441
8V
R501
680

C522
01uF

R502
180
S501
SWITCH
3

RTA3
1
2

RTA1

4

RTA2

C0
2

4

C1

PC0
PC1

8

PC2

PC3

C0
C1

C511
100pF

C512
100pF

C513
100pF

C514
100pF

GND1

RTA0

9

1

GND

CR503

7

6.8V
VR501

B503

VHF Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404055G09 PCB)

5A-22

Circuit Board/Schematic Diagrams and Parts List

R5_2_FE

R5_3_FE

C3320
82pF
R3316
470

C3309
0.1uF

C3337
.022uF

L3309
150nH

UNSWB_PLUS_1_RX

UNSWB+

L3304
470nH

C3308
330pF

R3322
220

R3321
150
R3323
18

UNSWB_PLUS_2_RX

IF_1_FE
IF

C3336
10uF
C3307
100pF

R3315
330

R3310
10K
R3313
22

RX_IN_1_FE

C3304
150pF

C3303
15pF

C3302
150pF

C3306
0.1uF

R3314
10

C3315
10pF
C3311
150pF

C3312
16pF

C3313
150pF

L3306
12nH
D3302

L3303
12nH

C3305
NU

R3309
5.6K
R3311
10

CR3303

T3301

1
2

C3318
.022uF

4

3

RF BALUN

RX_IN
L3301
12nH

C3316
3.3pF

R3308
1.5K
Q3302

C3301
5.6pF

6
C3317
39pF

C3310
NU

C3314
NU

C3339
10pF

Stripline

L3308
10nH

C3319
NU
R3320
NU

L3305
12nH

R3312
33
4

CR3301

3

D3301
R3307
33K

R3319
NU

CR3302
SMBV1032

C3338
470pF

C3326
NU

2
Stripline
R3306
2.2K

Stripline

RSSI

R3304
100K

RSSI_1_FE

R3303
100K

C3321
330pF

Q3301

R3305
68K

C3322
100pF

C3323
100pF

C3324
33pF

R3301
NU

RT3301
NU

R3324
220

C3325
1000pF

C3327
330pF

R3317
100K

C3329
330pF

L3312
33nH

C3330
100pF

C3331
100pF

C3332
39pF

C3334
20pF

6

T3302

1
2

C3335
22pF
4

3
IF BALUN

ZMY0130786-O

DACRx
DACRx_1_FE
SH3301
SHIELD

RX_INJ
RX_INJ_1_FE
DUMMY

R3318
470
1
1
TP3301

VHF Receiver Front End Schematic Diagram

SH3302
SHIELD

1

1

Circuit Board/Schematic Diagrams and Parts List

5A-23

R5

Vdd_FILTERED
R3200
150

R3220
4.7K

R3206
100K

C3220
10pF

R3212
4.7K

L3221
1uH
R3221
100

C3210
1000pF

C3201
NU

OUT

3

L3201
NU

C3202
NU

R3211
2.2K

Q3200
MMBR941

R3203
10K

C3238
0.33uF

C3221
.01uF

C3218
4.7uF

R3204
10
C3230
100pF

C3206
.01uF

RSSI

C3244
.01uF
C3243
.022uF

C3207
2.2pF

R3205
1K

R3222
NU

R3213
2.2K

RSSI_1_ZIF RSSI_2_ZIF

RSSI

R3219
100

5V

C3209
1uF

1
2
3
4
5
6
7
8
9
10
11
12

RED_VCC

RED_VSS
PRE_IN
RSSI_OUT
RSSI_FLT
EXTBS
AFC
TESTD
VPP
GOLD_VCC
EMIT
BASE

Vdd_FILTERED
C3219
0.1uF

C3222
0.1uF

U3220
mgc_comps

C4M
C3M
C2M
C1M
VAG
LIM
ROSE_VCC
ROSE_VSS
DEMOD_HF
DEMOD_OUT
PHASE_LOCK
VAG_REF
BRP_OFF

L3200
1uH

IN

R3210
2.2K

C3225
0.1uF

C3226
0.1uF

BROWN_VCC

6

C3203
100pF

L3202
1uH

C3234
1uF
35
34
33
32
31
30
29
28
27
26
25

C3233
1uF

C3235
0.22uF

C3240
0.22uF

C3231
1uF

C3232
1uF

C3224
0.1uF

C3237
NU

R3223
NU

MLPD_CR

IF_1_ZIF

IF

1
GND
2
GND1
4
GND2
5
GND3

C3200
16pF

R3202
4.7K

C3239
.022uF

C3229
100pF

48
47
46
45
44
43
42
41
40
39
38
37
36

Y3200
XTAL

C3228
.01uF

PRE_AGC

R3208
100

R3207
39K

C3205
0.1uF

R3201
2.2K

PREAMP_OUT
MIX_IN
BLUE_VCC
BLUE_VSS
GREEN_VSS
MIX_BYP
GREEN_VCC
C1P
C2P
C3P
C4P

C3204
.01uF

Q3201

Vdd_FILTERED
SQ_OUT
DEMOD_1_ZIF

DEMOD

C3236
NU

R3224
10

13
14
15
16
17
18
19
20
21
22
23
24

RSSI

Vdd_FILTERED

R5_3_ZIF

R3209
1K

COL
GOLD_VSS
IOUT
TESTA
DATA
CLK
CEX
GND
FREF

C3208
NU

C3242
0.1uF

Vdd_FILTERED

Vdd_FILTERED
C3227 C3241 C3223
.01uF 1200pF 0.1uF

R3226
10

SH3202
SHIELD

Q3202

5V
R3225
1K

C3271
330pF

C3273
10pF

5V

R3218
NU

5V

C3272
4.7pF

C3274
33pF
R3271
47

R3270
1K

R3273
47K

C3277
82pF

L3270
100nH

C3215
10pF

GND

C3212
1uF

U3201
LP2980
1
5
VIN
VOUT
3
4
ON_OFF* NC
2

SWB_PLUS_3_ZIF

C3280
.01uF

Vdda_3_ZIF

Vdda

1

CLK_3_ZIF

R3274
2.4K

LVZIF_SEL_1_ZIF
C3278
.022uF

16_8MHz_3_ZIF

C3279
2.2uF

C3275
56pF

1

SWB+

R3276
D3270 200K

R3275
1K

SH3203
SHIELD

SH3201
SHIELD

C3211
4.7uF

R3214
22

L3271
2.2uH

ZMY0130787-O
16.8MHz

5V_3_ZIF

C3276
47pF

1

Q3270
BFQ67W
2

C3214
0.1uF

DATA_3_ZIF

R3272
47K

3

DATA
CLK
LVZIF_SEL

VSF_3_ZIF

VSF

C3270
.022uF

1
2
3

Vdd_FILTERED
(SOURCE)

C3213
4.7uF

VHF Receiver Back End Schematic Diagram

5A-24

Circuit Board/Schematic Diagrams and Parts List

U3711
ADP3
mgc_comps

C3702
.01uF

3 K3
2 K2
1 K1

A3 4
A2 5
A1 6
D3701

D3702

C3705
0.1uF

C3706
4.7uF

R3703
150

C3707
22pF

R3704
150

R3726
NU

C3725
NU

C3709
0.1uF
C3746
220pF

1

5V

VCTRL

R5_1_FN R5_2_FN
R5

R3722
1K

Q3721
UMC5
UMC5N
4

C3722
0.1uF

LOCK_1_FN
LOCK

C3721
0.1uF

3

T5_1_FN

1

TRB_1_FN

R3723
100
TP3701

TRB

1

WARP
INDMULT
SFOUT
ADAPTSW
LOCK
IADAPT
IOUT

16_8MHz_1_FN
16.8MHz

R3741
100

NC3
31
NC2
29
NC1
17

AUX4
3
AUX3
2
AUX2
1
AUX1
48

PRESC

C3727
100pF

VSF_1_FN
VSF

R3752
330K

mgc_comps
U3701 VBPASS 21
PVREF
35

R3751
200K

C3753
4.7uF

DATA_1_FN

C3752
1000pF

C3754
0.1uF

DATA

SFIN
30
DATA
7
MODIN
10

MODIN_1_FN

MODIN
CSX_1_FN

CSX

CEX
9
CLK
8

CLK
CLK_1_FN
C3742
220pF

C3744
220pF

47
13
36
20
34
5

C3741
NU

PRESC_1_FN

C3755
2.2uF

BIAS2
39
BIAS1
40

XTAL2
24
XTAL1
23

C3726
8.2pF

R3727
100K

CCOMP
42
REFSEL
18

MODOUT
41
FREFOUT
19

VCO_MOD

TP3702

PREIN
32
SFBASE
27
SFCAP
26

VMULT4
11
VMULT3
12
VMULT2
14
VMULT1
15

C3724
1uF

VCO_MOD_1_FN

25
16
28
46
4
45
43

TEST2
38
TEST1
37

2

T5

1

BIAS_ADJ_1_FN

R3705
33K

C3708
0.1uF

R3721
470

C3713
2.2uF

BIAS_ADJ

R3702
NU

C3714
4.7uF

VCTRL_1_FN

C3712
0.1uF

C3710
2.2uF

4
A3
5
A2
6
A1

3
K3
2
K2
1
K1

SWB+

R3701
100

C3703
.01uF
C3704
.01uF

C3711
10uF

PD_GND
44
PRE_GND
33
AGND
22
DGND
6

C3701
.01uF

C3715
470pF

L3701
390nH

SWB_PLUS_1_FN

5
IN
3
SD

GND

2
NR
4
OUT
6
ERR

5V_2_FN

VCP
VRO
DVDD
AVDD
PRE_VDD
PD_VDD

5V_1_FN
(SOURCE) 5V

C3745
220pF

C3743
220pF

Y3761
75Z04

C3735
NU

R3762
NU
1

GND1

R3760
NU

VHF Synthesizer Schematic Diagram

C3763
NU

C3731
.01uF

C3732
.01uF

D3761

1

C3762
330pF
R3763
NU
2

GND

Y3762
OSC_16.8MHZ

VCC
3 OUT

1

SH3702
SHIELD

3

VCNTL

SH3701
SHIELD

4

GND

C3761
39pF

OUT

1

ZMY0130789-O

IN

L3731
2.2uH

R3761
47K

16.8MHz
6

4

5V
C3751
NU

C3733
2.2uF

C3734
.01uF

Vdda_1_FN
Vdda

Circuit Board/Schematic Diagrams and Parts List

5A-25

VSF

Vdda

VSF_1_VCO

Vdda_3_VCO

R5

R5_1_VCO

R3802
100

R3811
100

C3810
NU

C3804
0.1uF

L3812
100nH

C3811
0.1uF

C3812
0.1uF

U3801 50U54

RX_INJ

R3801
NU

C3806
100pF

R3806
22

Q3801

10
TX_OUT
8
RX_OUT

C3802
NU

12

R3808
10

C3803
1000pF

R3804
10K

C3805
4.7pF

R3805
24K

PRESC_OUT

7
RX_SWITCH
13
TX_SWITCH

R3803
220

C3808
15pF

VCC_LOGIC
18
VCC_BUFFERS
14

R3807
NU

TX_IADJ
RX_IADJ
SUPER_FLTR
COLL_RFIN
RX_BASE
RX_EMITTER
TX_BASE
TX_EMITTER
FLIP_IN
TRB_IN

D3821
C3825
15pF

R3822
47

C3818
022uF

RX_INJ_1_VCO
C3801
4.7pF

C3822
1000pF

C3813
.01uF

R3818
NU

GND_LOGIC
17
GND_BUFFERS
11
GND_FLAG
9

L3801
100nH

L3811
100nH

L3813
1uH

R3817
0

C3830
68pF

C3824
56pF

L3821
56nH

L3822
47nH

C3826
4.7pF

1
2
3
4
5
6
16
15
20
19

R3825
33

R3831
10K

R3826
18

C3829
.01uF

C3823
.01uF

L3826
1uH
R3812
NU

C3821
.01uF

R3824
22K

R3823
33K

BIAS_ADJ_1_VCO

BIAS_ADJ

C3827
.022uF

T5_1_VCO

T5

R3830
NU

SH3801
SHIELD

SH3802
SHIELD

TX_INJ

R3816
1K

PRESC_1_VCO
L3816
100nH
C3816
6.8pF

1

C3842
1000pF

C3836
15pF

R3834
47

R3833
220

TRB

C3833
4.7pF

C3834
56pF

L3831
56nH

L3832
68nH

L3833
56nH

TRB_1_VCO

TX_INJ_1_VCO

VSF

R3829
0

L3834
1uH
D3831

C3832
1000pF

C3815
1000pF

ZMY0130791-O

VCTRL

C3828
.01uF

L3825
100nH

L3823
47nH

C3835
6.8pF

L3809
27nH

VCTRL_1_VCO
R3828
100

R3821
220

R3832
12K

C3809
27pF

L3824
1uH

PRESC

VSF

R3835
47K

R3836
10K

VCO_MOD
VCO_MOD_1_VCO

D3832

1

VHF Voltage Controlled Oscillator Schematic Diagram

RESET_1_PA

5V_2_PA

UNSWB+

UNSWB+

UNSWB+

5V

RESET

CLK

CSX

DATA

Circuit Board/Schematic Diagrams and Parts List

UNSWB+

5A-26

C3571
470pF

BIAS_TUNING
C3570
330pF

CLK_2_PA

R3570
10K

DATA_2_PA

VAR3
RX
NA
RS
VAR1
VLIM
VAR2
V5EXT

UNSWB_LPLUS_2_PA
25
26
27
28
29
30
31
32

R3561
12K

VOUT

2

LM50C
5185963A15

GND

POS

V45
VG
V10
CQX
CQ
Q
QX
F168

U3502
H99S-4

16
15
14
13
12
11
10
9

NC_U3502_13
NC_U3502_12
NC_U3502_11
NC_U3502_10
NC_U3502_9

C3561
.022uF

U3503

R3562
33K

R3571
120

R3566
NU

1
2
3
4
5
6
7
8

3

GND2
CLK
BPOS
DATA
CEX
TEMP
RSET
ANO

Q3561
MMBT3906

C3560
1uF

RFIN
T1
CI
INT
CJ
VL
CL
GND1

UNSW_LPLUS_3_PA

C3566
100pF

R3569
5.6K

24
23
22
21
20
19
18
17

CSX_2_PA

C3565
.022uF

R3563
270K
R3564
330K

C3568
3300pF

C3569
.022uF

R3572
120

L3519
BEAD

C3504
.022uF

C3562
3300pF

L3503
68nH
C3508
.022uF

L3504
68nH

C3503
33pF

C3563
3300pF

R3512
NU

R3503
300

L3515
13.85nH

C3512
47pF

L3511
18nH

R3506
3.9

L3513
7.66nH

R3513
NU

L3521
7.66nH

D

C3521
220pF

L3523
1uH

C3533
7.5pF

C3528
10pF

C3527
NU

C3518
NU

C3514
68pF

C3526
.022uF

VR3501
12V

C3536
15pF

C3537
18pF

H3501
HEATSINK

C3517
68pF

R3541
39K

L3551
43.67nH

BIAS_TUNING

C3544
330pF

R3548
22K

R3542
5.6K

R3544
100

R3551
39

R3545
100

R3547
33K

SH3501
SHIELD

SH3502
SHIELD

VHF Transmitter Schematic Diagram

C3539
12pF

1
2

C3546
330pF

1
2
3

C3547
.022uF

R3546
12K

D3551

C3550
7.5pF

C3551
68pF

RX_IN_1_PA
RX_IN
C3552
56pF

L3552
7.66nH

1
TP3502

TAB5
5
TAB4
4
TAB3
3

1

R3543
100

C3543
.022uF

J3502
ANTENNA_NUT
TAB2
2
TAB1
1

L3538
30.54nH
C3542
330pF

4

3

G
Q3501

R3507
3.9

GND

2
C3535
27pF

C3531
20pF

S
L3512
11.03nH

C3513
30pF

C3541
.022uF

ZMY0130790-O

1

L3532
43.67nH

L3531
43.67nH

C3525
10pF
C3524
20pF

RF_JACK
J3501

C3532
68pF

D3521
L3522
23.75nH
C3523
120pF

C3534
4.7pF

4
5
12
13
17

GND1
GND2

R3501
300

6
RFIN
RFOUT1 7
VCNTRL RFOUT2
2
VD1
VG1 3
G2
VG2
U3501
8
NC1 09Z67
9
NC2
10
NC3
15
NC4
EP

TX_INJ

C3515
3300pF

L3518
NU

16
1
14
11

GND4

R3502
18

GND3

TX_INJ_1_PA

C3516
1uF

C3519
NU

R3505
470
C3501
330pF

C3567
330pF

C3502
33pF

C3505
33pF

R3573
120

R3519
0.1

C3509
330pF
C3564
220pF

L3501
5.6nH

R3565
NU

Circuit Board/Schematic Diagrams and Parts List

VHF Radio Parts List (RF Board)
Circuit
Ref

Motorola
Part No.

B501
B501
B503

0986237A02
0986237A02
3980502Z01

B504

3980501Z01

C3200
C3201
C3202
C3203
C3204
C3205
C3206
C3207
C3208
C3209
C3210
C3211
C3212
C3213
C3214
C3215
C3218
C3219
C3220
C3221
C3222
C3223
C3224
C3225
C3226
C3227
C3228
C3229
C3230
C3231
C3232
C3233
C3234
C3235
C3236
C3237
C3238
C3239
C3240
C3241
C3242
C3243
C3244

2113743N31
NOT PLACED
NOT PLACED
2113743N50
2113743L41
2113928N01
2113743L41
2113743N10
NOT PLACED
2311049A07
2113743L17
2311049A56
2311049A07
2311049A56
2113928N01
2113743N26
2311049A56
2113928N01
2113743N26
2113743L41
2113928N01
2113928N01
2113928N01
2113928N01
2113928N01
2113743L41
2113743L41
2113743N50
2113740F51
2180478Z20
2180478Z20
2180478Z20
2180478Z20
2113743A23
NOT PLACED
NOT PLACED
2113743A24
2113743E07
2113743A23
2113743L19
2109720D14
2113743E07
2113743L41

Description
Battery Contact Module
Battery Contact Connector
Contact, Backup B+
(not used in GP328 Plus)
Contact, Backup B(not used in GP328 Plus)
16.0 pF, 5%
100 pF, 5%
10000 pF, 10%
0.1 uF, 10%
10000 pF, 10%
2.2 pF, 0.25 pF
1.0 uF, 10%
1000 pF, 10%
4.7 uF
1.0 uF, 10%
4.7 uF
0.1 uF, 10%
10.0 pF, 5%
4.7 uF
0.1 uF, 10%
10.0 pF, 5%
10000 pF, 10%
0.1 uF, 10%
0.1 uF, 10%
0.1 uF, 10%
0.1 uF, 10%
0.1 uF, 10%
10000 pF, 10%
10000 pF, 10%
100 pF, 5%
100 pF
1.0 uF
1.0 uF
1.0 uF
1.0 uF
0.220 uF, 10%
0.330 uF, 10%
0.022 uF
0.220 uF, 10%
1200 pF, 10%
0.1 uF
0.022 uF
10000 pF, 10%

5A-27

Circuit
Ref
C3270
C3271
C3272
C3273
C3274
C3275
C3276
C3277
C3278
C3279
C3280
C3301
C3302
C3303
C3304
C3305
C3306
C3307
C3308
C3309
C3310
C3311
C3312
C3313
C3314
C3315
C3316
C3317
C3318
C3319
C3320
C3321
C3322
C3323
C3324
C3325
C3326
C3327
C3329
C3330
C3331
C3332
C3334
C3335
C3336
C3337
C3338
C3339
C3501
C3502
C3503

Motorola
Part No.
2113743E07
2113743L05
2113743N18
2113743N26
2113743N38
2113743N44
2113743N42
2113743N48
2113743E07
2311049A40
2113743L41
2113743N20
2113743N54
2113743N30
2113743N54
NOT PLACED
2113928N01
2113743N50
2113743L05
2113928N01
NOT PLACED
2113743N54
2113743N31
2113743N54
NOT PLACED
2113743N26
2113743N14
2113743N40
2113743M08
NOT PLACED
2113743N48
2113743L05
2113743N50
2113743N50
2113743N38
2113743L17
NOT PLACED
2113743L05
2113743L05
2113743N50
2113743N50
2113743N40
2113743N33
2113743N34
2311049A18
2113743M08
2113743L09
2113743N26
2113743L05
2113743N38
2113743N38

Description
0.022 uF
330 pF, 10%
4.7 pF, 0.25 pF
10.0 pF, 5%
33.0 pF, 5%
56.0 pF, 5%
47.0 pF, 5%
82.0 pF, 5%
0.022 uF
2.2 uF, 10%
10000 pF, 10%
5.6 pF, 0.5 pF
150 pF, 5%
15.0 pF, 5%
150 pF, 5%
0.1 uF, 10%
100 pF, 5%
330 pF, 10%
0.1 uF, 10%
150 pF, 5%
16.0 pF, 5%
150 pF, 5%
10.0 pF, 5%
3.3 pF, 0.25 pF
39.0 pF, 5%
22000PF, +80% / -20%
82.0 pF, 5%
330 pF, 10%
100 pF, 5%
100 pF, 5%
33.0 pF, 5%
1000 pF, 10%
330 pF, 10%
330 pF, 10%
100 pF, 5%
100 pF, 5%
39.0 pF, 5%
20.0 pF, 5%
22.0 pF, 5%
10 uF, 10%
22000PF, +80% / -20%
470 pF, 10%
10.0 pF, 5%
330 pF, 10%
33.0 pF, 5%
33.0 pF, 5%

Circuit
Ref
C3504
C3505
C3508
C3509
C3512
C3513
C3514
C3515
C3516
C3517
C3518
C3519
C3521
C3523
C3524
C3525
C3526
C3527
C3528
C3531
C3532
C3533
C3534
C3535
C3536
C3537
C3539
C3541
C3542
C3543
C3544
C3546
C3547
C3550
C3551
C3552
C3560
C3561
C3562
C3563
C3564
C3565
C3566
C3567
C3568
C3569
C3570
C3571
C3701
C3702
C3703

Motorola
Part No.
2113743M08
2113743N38
2113743M08
2113743L05
2113740F43
2113740F38
2113740F47
2113743L29
2311049A08
2113740F47
NOT PLACED
NOT PLACED
2111078B51
2111078B44
2113740F34
2113740F27
2113743M08
NOT PLACED
2113740F27
2113740F34
2113740F47
2113740F24
2113740F19
2113740F37
2113740F31
2113740F33
2113740F29
2113743M08
2113743L05
2113743M08
2113743L05
2113743L05
2113743M08
2113743N23
2113743N46
2113743N44
2311049A07
2113743M08
2113743L29
2113743L29
2113743L01
2113743E07
2113743N50
2113743L05
2113743L29
2113743M08
2113743L05
2113743L09
2113743L41
2113743L41
2113743L41

Description
22000PF, +80% / -20%
33.0 pF, 5%
22000PF, +80% / -20%
330 pF, 10%
47 pF
30 pF
68 pF
3300 pF, 10%
1 uF
68 pF
220 uF
120 uF
20 pF
10 pF
22000PF, +80% / -20%
10 pF
20 pF
68 pF
7.5 pF
4.7 pF
27 pF
15 pF
18 pF
12 pF
22000PF, +80% / -20%
330 pF, 10%
22000PF, +80% / -20%
330 pF, 10%
330 pF, 10%
22000PF, +80% / -20%
7.5 pF, 0.5 pF
68.0 pF, 5%
56.0 pF, 5%
1.0 uF, 10%
22000PF, +80% / -20%
3301 pF, 10%
3302 pF, 10%
220 pF, 10%
0.022 uF
100 pF, 5%
330 pF, 10%
3303 pF, 10%
22000PF, +80% / -20%
330 pF, 10%
470 pF, 10%
10000 pF, 10%
10000 pF, 10%
10000 pF, 10%

Circuit
Ref
C3704
C3705
C3706
C3707
C3708
C3709
C3710
C3711
C3712
C3713
C3714
C3715
C3721
C3722
C3724
C3725
C3726
C3727
C3731
C3732
C3733
C3734
C3735
C3741
C3742
C3743
C3744
C3745
C3746
C3751
C3752
C3753
C3754
C3755
C3761
C3762
C3763
C3801
C3802
C3803
C3804
C3805
C3806
C3808
C3809
C3810
C3811
C3812
C3813
C3815
C3816

Motorola
Part No.
2113743L41
2113743E20
2311049J11
2113743N34
2113928N01
2113928N01
2104993J02
2311049A69
2113928N01
2311049A09
2311049J11
2113743L09
2113743E20
2113743E20
2311049A08
NOT PLACED
2113743N24
2113743N50
2113743L41
2113743L41
2104993J02
2113743L41
NOT PLACED
NOT PLACED
2113743L01
2113743L01
2113743L01
2113743L01
2113743L01
NOT PLACED
2113743L17
2311049A56
2113928N01
2104993J02
2113743N40
2113740F63
NOT PLACED
2113743N18
NOT PLACED
2113743L17
2113743E20
2113743N18
2113743N50
2113743N30
2113743N36
NOT PLACED
2113928N01
2113928N01
2113743L41
2113743L17
2113743N22

Description
10000 pF, 10%
0.10 uF, 10%
4.7 uF, 10%
22.0 pF, 5%
0.1 uF, 10%
0.1 uF, 10%
2.2 uF
10.0 uF, 20%
0.1 uF, 10%
2.2 uF, 10%
4.7 uF, 10%
470 pF, 10%
0.10 uF, 10%
0.10 uF, 10%
1 uF
8.2 pF, 0.5 pF
100 pF, 5%
10000 pF, 10%
10000 pF, 10%
2.2 uF
10000 pF, 10%
220 pF, 10%
220 pF, 10%
220 pF, 10%
220 pF, 10%
220 pF, 10%
1000 pF, 10%
4.7 uF
0.1 uF, 10%
2.2 uF
39.0 pF, 5%
330 pF, 5%
4.7 pF, 0.25 pF
1000 pF, 10%
0.10 uF, 10%
4.7 pF, 0.25 pF
100 pF, 5%
15.0 pF, 5%
27.0 pF, 5%
0.1 uF, 10%
0.1 uF, 10%
10000 pF, 10%
1000 pF, 10%
6.8 pF, 0.5 pF

5A-28

Circuit
Ref
C3818
C3821
C3822
C3823
C3824
C3825
C3826
C3827
C3828
C3829
C3830
C3832
C3833
C3834
C3835
C3836
C3842
C502
C503
C505
C511
C512
C513
C514
C520
C521
C522
C523
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C541
C542
C543
C544
C545
C546
C547

Circuit Board/Schematic Diagrams and Parts List

Motorola
Part No.
2113743E07
2113743L41
2113743L17
2113743L41
2113743N44
2113743N30
2113743N18
2113743E07
2185895Z01
2185895Z01
2113743N46
2113743L17
2113743N18
2113743N44
2113743N22
2113743N30
2113743L17
2311049A05
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743L41
2113743L41
2113743L41
2113743L17
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
2113743L09
2113743L09
2113743L09
2113743L09

Description
0.022 uF
10000 pF, 10%
1000 pF, 10%
10000 pF, 10%
56.0 pF, 5%
15.0 pF, 5%
4.7 pF, 0.25 pF
0.022 uF
0.01 uF
0.01 uF
68.0 pF, 5%
1000 pF, 10%
4.7 pF, 0.25 pF
56.0 pF, 5%
6.8 pF, 0.5 pF
15.0 pF, 5%
1000 pF, 10%
0.47 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
10000 pF, 10%
10000 pF, 10%
10000 pF, 10%
1000 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%

470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%

Circuit
Ref

Motorola
Part No.

C548
C549
C550
C551
C552
C553
C555
CR3301
CR3302
CR3303
CR501
CR503
D3270
D3301
D3302
D3521
D3551
D3701
D3702
D3761
D3821
D3831
D3832
F501
H3501
J200
J3501
J3502

NOT PLACED
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
2113743L09
4802245J42
4805129M96
4880154K03
4880107R01
4805729G49
4862824C01
4802081B58
4802081B58
4880973Z02
4880973Z02
4802233J09
4802233J09
4862824C03
4805649Q13
4805649Q13
4862824C01
6580542Z01
2680499Z01
0905505Y04
0985613Z01
0280519Z02

L3200
L3201
L3202
L3221
L3270
L3271
L3301
L3303
L3304
L3305
L3306
L3308
L3309
L3312
L3501
L3503
L3504
L3511
L3512
L3513
L3515
L3518

2462587N68
NOT PLACED
2462587N68
2462587N68
2462587T15
2462587Q20
2462587T35
2462587T35
2462587T23
2462587T35
2462587T35
2462587T34
2462587N55
2462587V28
2413926H09
2462587V32
2462587N51
2462587N44
2479990B01
2479990A02
2479990C03
NOT PLACED

Description
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
470 pF, 10%
Ring Quad Diode
Dual Bond Diode
Dual Diode MMBD353
Rectifier
Red / Yellow Diode
Varactor Diode
Dual Diode
Dual Diode
PIN Diode
PIN Diode
Triple Diode
Triple Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Fuse 3A
Heat Spreader
Conn ZIF Horizontal
RF Jack
Antenna Nut
(Ref: 0280519Z04)
1000 nH, 5%
1000 nH, 5%
1000 nH, 5%
100 nH, 5%
2200 nH, 20%
12 nH, 5%
12 nH, 5%
470 nH, 5%
12 nH, 5%
12 nH, 5%
10 nH, 5%
150 nH, 5%
33 nH, 5%
5.6 nH, 0.3 nH
68 nH, 5%
68 nH, 5%
18 nH, 5%
11.03 nH
7.66 nH
13.85 nH

Circuit
Ref
L3519
L3521
L3522
L3523
L3531
L3532
L3538
L3551
L3552
L3701
L3731
L3801
L3809
L3811
L3812
L3813
L3816
L3821
L3822
L3823
L3824
L3825
L3826
L3831
L3832
L3833
L3834
L505
PB501
PB502
PB504
PB505
Q3200
Q3201
Q3202
Q3270
Q3301
Q3302
Q3501
Q3561
Q3721
Q3801
Q502
Q505
R3200
R3201
R3202
R3203
R3204
R3205
R3206

Motorola
Part No.
2484657R01
2479990A02
2479990E01
2462587N68
2479990N01
2479990N01
2479990M01
2479990N01
2479990A02
2462587Q42
2462587Q20
2462587V34
2462587V27
2462587V34
2462587V34
2462587Q47
2462587V34
2462587N50
2462587N49
2462587N49
2462587N68
2462587V34
2462587N68
2462587N50
2462587N51
2462587N50
2462587N68
2462587Q42
4070354A01
4070354A01
4070354A01
4070354A01
4813827A07
4880214G02
4880214G02
4805218N63
4880214G02
4813827A07
4813828A08
4813824A17
4809939C05
4813827A07
5180159R01
4880214G02
0662057M54
0662057M82
0662057M90
0662057M98
0662057M26
0662057M74
0662057N23

Description
Inductor Bead Chip
7.66 nH
23.75 nH
1000 nH, 5%
43.67 nH
43.67 nH
30.54 nH
43.67 nH
7.66 nH
390 nH, 10%
2200 nH, 20%
100 nH, 5%
27 nH, 5%
100 nH, 5%
100 nH, 5%
1000 nH, 10%
100 nH, 5%
56 nH, 5%
47 nH, 5%
47 nH, 5%
1000 nH, 5%
100 nH, 5%
1000 nH, 5%
56 nH, 5%
68 nH, 5%
56 nH, 5%
1000 nH, 5%
390 nH, 10%
Light Touch Switch
Light Touch Switch
Light Touch Switch
Light Touch Switch
Transistor NPN MMBR941
Transistor MMBT3904
Transistor MMBT3904
RF Transistor BFQ67W
Transistor MMBT3904
Transistor NPN MMBR941
Transistor 8W 175MHz
XSTR PNP 40V
Transistor Dual NPN / PNP
Transistor NPN MMBR941
Dual Transistor NPN
Transistor MMBT3904
150 , 5%
2200, 5%
4700, 5%
10 k, 5%
10, 5%
1000, 5%
100 k, 5%

Circuit
Ref
R3207
R3208
R3209
R3210
R3211
R3212
R3213
R3214
R3218
R3219
R3220
R3221
R3222
R3223
R3224
R3225
R3226
R3270
R3271
R3272
R3273
R3274
R3275
R3276
R3301
R3303
R3304
R3305
R3306
R3307
R3308
R3309
R3310
R3311
R3312
R3313
R3314
R3315
R3316
R3317
R3318
R3319
R3320
R3321
R3322
R3323
R3324
R3501
R3502
R3503
R3505

Motorola
Part No.
0662057N13
0662057M50
0662057M74
0662057M82
0662057M82
0662057M90
0662057M82
0662057M34
NOT PLACED
0662057M50
0662057M90
0662057M50
NOT PLACED
NOT PLACED
0662057M26
0662057M74
0662057M26
0662057M74
0662057M42
0662057N15
0662057N15
0662057M83
0662057M74
0662057N30
NOT PLACED
0662057N23
0662057N23
0662057N19
0662057M82
0662057N11
0662057M78
0662057M92
0662057M98
0662057M26
0662057M38
0662057M34
0662057M26
0662057M62
0662057M66
0662057N23
0662057M66
NOT PLACED
NOT PLACED
0662057M54
0662057M58
0662057M32
0662057M58
0662057M61
0662057M32
0662057M61
0662057M62

Description
39 k, 5%
100, 5%
1000, 5%
2200, 5%
2200, 5%
4700, 5%
2200, 5%
22, 5%
100, 5%
4700, 5%
100, 5%
10, 5%
1000, 5%
10, 5%
1000, 5%
47, 5%
47 k, 5%
47 k, 5%
2400, 5%
1000, 5%
200 k, 5%
100 k, 5%
100 k, 5%
68 k, 5%
2200, 5%
33 k, 5%
1500, 5%
5600, 5%
10 k, 5%
10, 5%
33, 5%
22, 5%
10, 5%
330, 5%
470, 5%
100 k, 5%
470, 5%
150, 5%
220, 5%
18, 5%
220, 5%
300, 5%
18, 5%
300, 5%
330, 5%

Circuit Board/Schematic Diagrams and Parts List

Circuit
Ref
R3506
R3507
R3512
R3513
R3519
R3541
R3542
R3543
R3544
R3545
R3546
R3547
R3548
R3551
R3561
R3562
R3563
R3564
R3565
R3566
R3569
R3570
R3571
R3572
R3573
R3701
R3702
R3703
R3704
R3705
R3721
R3722
R3723
R3726
R3727
R3741
R3751
R3752
R3760
R3761
R3762
R3763
R3801
R3802
R3803
R3804
R3805
R3806
R3807
R3808
R3811

Motorola
Part No.
0662057B62
0662057B62
NOT PLACED
NOT PLACED
0680539Z01
0662057N13
0662057M92
0662057M50
0662057A25
0662057A25
0662057N01
0662057N11
0662057N07
0662057M40
0662057N01
0662057N11
0662057N33
0662057N35
NOT PLACED
NOT PLACED
0662057M92
0662057M98
0662057A27
0662057A27
0662057A27
0662057M50
NOT PLACED
0662057M54
0662057M54
0662057N11
0662057M66
0662057M74
0662057M50
NOT PLACED
0662057N23
0662057M50
0662057N30
0662057N35
NOT PLACED
0662057N15
NOT PLACED
NOT PLACED
NOT PLACED
0662057M50
0662057M58
0662057M98
0662057N08
0662057M34
NOT PLACED
0662057M26
0662057M50

Description
3.9, 5%
3.9, 5%
Power Metal Strip Resistor
39 k, 5%
5600, 5%
100, 5%
100, 5%
100, 5%
12 k, 5%
33 k, 5%
22 k, 5%
39, 5%
12 k, 5%
33 k, 5%
270 k, 5%
330 k, 5%
5600, 5%
10 k, 5%
120, 5%
120, 5%
120, 5%
100, 5%
150, 5%
150, 5%
33 k, 5%
470, 5%
1000, 5%
100, 5%
100 k, 5%
100, 5%
200 k, 5%
330 k, 5%
47 k, 5%

100, 5%
220, 5%
10 k, 5%
24 k, 5%
22, 5%
10, 5%
100, 5%

5A-29

Circuit
Ref

Motorola
Part No.

Description

R3812
R3816
R3817
R3818
R3821
R3822
R3823
R3824
R3825
R3826
R3828
R3829
R3830
R3831
R3832
R3833
R3834
R3835
R3836
R501
R502
R505
R506
R509

NOT PLACED
0662057M74
0662057M01
NOT PLACED
0662057M58
0662057M42
0662057N11
0662057N07
0662057M38
0662057M32
0662057M50
0662057M01
NOT PLACED
0662057M98
0662057N01
0662057M58
0662057M42
0662057N15
0662057M98
0662057M70
0662057M56
0662057M98
0662057N15
0662057M01

RT3301
S501

NOT PLACED
4080710Z01 Channel Switch
(Ref: 4080710Z09)
4080710Z05 Channel Switch (used in
PMUD1892_ only)
(Ref: 4080710Z12)
1880619Z02 Potentiometer (Volume)
2602023X08 Shield Diplexer
2686081B02 Shield, for GSM Placement
2686081B03 Shield, for GSM Placement
2686081B01 Shield, for GSM Placement
2686081B05 Shield, for GSM Placement
2686081B06 Shield, for GSM Placement
2686081B03 Shield, for GSM Placement
2686081B04 Shield, for GSM Placement
2680511Z01
Shield, Synthesizer
2680511Z01
Shield, Synthesizer
2680513Z01 Shield, VCO Top
2680514Z01 Shield, VCO Bottom / LVZIF
2580541Z02 Balun Transformer
2580541Z02 Balun Transformer
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
5102463J58
3.3V Regulator

S502
SH3201
SH3202
SH3203
SH3301
SH3302
SH3303
SH3501
SH3502
SH3701
SH3702
SH3801
SH3802
T3301
T3302
TP3301
TP3502
TP3701
TP3702
U3201

1000, 5%
0, 5%
220, 5%
47, 5%
33 k, 5%
22 k, 5%
33, 5%
18, 5%
100, 5%
0, 5%
10 k, 5%
12 k, 5%
220, 5%
47, 5%
47 k, 5%
10 k, 5%
680, 5%
180, 5%
10 k, 5%
47 k, 5%
0, 5%
(not used in GP328 Plus)

Circuit
Ref

Motorola
Part No.

U3220
U3501
U3502
U3503
U3701
U3711
U3801
VR3501
VR439
VR440
VR441
VR444
VR501
VR506
Y3200
Y3761
Y3762

Description

5109632D83 LVZIF
5185130C65 LDMOS Driver
5185765B26 PCIC
5185963A15 Temperature Sensor IC
5185963A27 LVFRACN
5105739X05 5V Regulator
5105750U54 VCO Buffer
4880140L17
12V Zener Diode
4880140L17
12V Zener Diode
NOT PLACED
NOT PLACED
NOT PLACED
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
9186153B01 X’tal Filter
**4805875Z04 Crystal 16.8 MHz
NOT PLACED
8404055G05 RF PCB
8404055G06 RF PCB
8404055G07 RF PCB
8404055G09 RF PCB
* Motorola Depot Servicing only
** Not Serviceable

5A-30

Circuit Board/Schematic Diagrams and Parts List

THIS PAGE INTENTIONALLY LEFT BLANK

Troubleshooting Charts

9.0

5A-31

Troubleshooting Charts
MCU Check

PTT
Press PTT. Red
LED does not
light up

INT
AUDIO
J403 Audio
at Pin 2 &
Pin 3

Audio at
AudioPA YES
(U420) input
(U447)

NO

Check
Audio PA
(U420)

YES

PTT U409 Pin NO
53
low?
YES

NO
Audio from Pin 41
ASFIC, U404?

Check Spk. Flex
Connection

Power Up
Alert Tone
OK?

Check
PB504

Press PTT
Q502-2 High?

NO

NO

Speaker
OK?

NO

Audio at
Pin 2
U404?

YES

U409 EXTAL=
7.3728 MHz?

Check
Q502-2
voltage

Check ASFIC
U404

YES
Read Radio OK?

YES

LED should
light up

Radio could
not PTT
externally

LED
Q502,R501
OK?

U3701 Pin 19
16.8 MHz

NO

Check
Setup

Reprogram the
correct data.

YES

NO

YES
EXT
PTT

NO Replace Speaker

YES

No
Check
U3220
LV ZIF

Before replacing
MCU, check SPI
clock, SPI data, and
RF IC select

YES Not able to program RF Board
ICs

NO

See FGU
Troubleshooting

No
Replace
Faulty
Component
J403 OPT_SEL_1
NO
& OPT_SEL_2
Pin 8 & 9
low?
YES

EXT
SPKR
J403 Pin 9 low?
Pin 8 high?

NO

Check
Accessories

YES

ASFIC U404 Pin
14 & 15 high?

NO

5V at U3711?
3.3V at U3201?

Check
Accessories

U409 YES
Pin 52, 6
low?
NO

Check
U404

YES

Check
MCU

See FGU
Troubleshooting
chart

NO

YES

YES

U409 Reset Pin
94 High?

7.5V at
Pin 3/5 U3711? NO
7.5V at Pin 1
U3201

NO

Check
Q400

Replace U3711/
U3201

Check any short to
SWB+,
Vdda or Vddd

YES
MCU is OK

YES
Check
U420 Audio PA

Troubleshooting Flow Chart for Controller

5A-32

Troubleshooting Charts

START

Bad SINAD
Bad 20dB Quieting
No Recovered Audio

Audio at pin 27 Yes
of U3220?

Check Controller

No
Spray of inject 1st IF into
XTAL Filter
IF Freq: 45.1MHz

Yes
B

A

Check Q3270 bias circuitry for faults.

Audio heard?

Rotate Freq. Knob

No
Check 2nd LO Control
Voltage at C3279

No

Activity on
U3220 sel pin?

Yes
B

VCO locked?

Check controller.

Yes

No

Check FGU

No

16.8 MHz
check at pin 21
U3220?

Before replacing U3220, check 2nd
VCO Q3270. Check VCO O/P level,
C3272, C3273.

Yes

A

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Troubleshooting Charts

5A-33

B

Inject RF into J3501

Trace IF signal
from C3200 to
Q3200. Check for
bad XTAL filter.

Yes

IF Signal at
C3200?

Q3200 collector OK?
IF signal
present?

No
Yes
RF Signal at
T3301?
No

1st LO O/P
OK?
Locked?
Yes

Yes
RF Signal at
R3313?

No

No
Check FGU

Yes

Before replacing
U3220, check
U3220 voltages;
trace IF signal
path.

Check T3301, T3302,
CR3301, R3321, R3322,
R3323

Check filter between C3313
& T3301.

Check for 2.9
VDC

Yes

A

No
No

Yes
Check RF amp (Q3302)
Stage.

RF Signal at
C3306?

Is R5 present?

No or
weak RF
Yes
RF Signal at
C3302?
No

Check filter between
C3302 & C3306; program
filter to schematic test freq
and check
varactor voltages.

Check harmonic filter L3531 & L3532,
C3532 and ant. switches D3521, D3551,
L3551, R3551, C3551, C3552, L3552

Yes

A

No
Check Q3721, U3701
(pin 48) voltages and
U247

Are varactor
voltages OK?

Yes

Check varactor filter.

No
Check U404 voltage and if
U404 can be selected by MCU
before replacing U404.

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)

5A-34

Troubleshooting Charts

START

No Power

Is There B+
Bias for Ant
switch

Yes

Yes

No

Is Current
OK?

No

Check Q3561

Is Control Voltage
High or Low

Low
Check PCIC

High
Check Drive to
Module
1. Check Pin Diodes
2. Check Harmonic Filter
Is Drive
OK?
Inspect/Repair Tx. Output Network

Is Power
OK?

Yes
Inspect PA Network/Check
Power Out of U3501 at Cap
C3512

No

Yes

Is Power
OK?

Yes
Done

No
Done
Replace U3501

Is Power
OK?

Yes
Done

No
Replace Q3501

Troubleshooting Flow Chart for Transmitter

No
Troubleshoot
VCO

Troubleshooting Charts

5A-35

3.3V at U3701
pins 5, 20, 34 &
36

Start

Check D3701, D3702,
U3701, C3701 C3707

Check U3201,
L3731

YES

Visual
check of the
Board OK?

NO

Correct
Problem

NO

YES
YES
NO
5V
at pin 6 of
D3701

Is U3701 Pin 47
AT = 13 VDC
YES

NO

NO
YES

Check
L3701,
R3701

Check Q260,
Q261 & R260

Is
16.8MHz
signal at
U3701 pin
23?

NO

+5V at U3701
Pin’s
13 & 30?
YES

Are signals
at Pin’s 14 &
15 of U3701?

YES

Replace
U3701

NO

Check 5V
Regulator

NO

Is U3701 Pin 19
<0.7 VDC in RX &
>4.3 VDC in TX?

Is 16.8MHz
Signal at
U3701 Pin 19?

Check Y3761, C3761,
C3762, C3763, D3761
& R3761

NO
Are Waveforms
at Pins 14 & 15
triangular?

NO

YES
YES

YES
U3701 pin 2 at
>3V in Tx and
<0.7V in Rx

Is U3701
P i n 1 8 AT
4.54 VDC?

NO

YES
NO

NO
Replace U3701

NO

Is there a short
between Pin 47 and
Pins 14 & 15 of
U3701?

Check programming
lines between U409
and U3701 Pins 7,8 & 9

YES
YES

NO

Remove
Shorts
Check uP U409
Troubleshooting
Chart

Is RF level at
U3701 Pin 32
>-30 dBm?

If R3727, C3726 & C3727
are OK, then see VCO
troubleshooting chart

NO

Do Pins 7,8 & 9
of U3701 toggle
when channel is
changed?

YES

Is information
from µP U409
correct?

YES

Replace U3701

YES

Are C3721,
C3722,C3723,
R3721, R3722,
R3723 OK?

NO

Replace or
resolder
necessary
components

YES
Replace U3701

Troubleshooting Flow Chart for Synthesizer

5A-36

Troubleshooting Charts

START
Change
U3801
No
L3831,
L3832,
L3833 O/C?

Yes

Yes

Change L3831,
L3832

No LO?
No

Yes
No

Yes

Pin 10
>1V?

A

TRB = 3.2V?

No
Tx Carrier?
Yes

No

VCO OK

Check R3811, L3811
for dry joint or faulty
Yes

AUX 3
High?

Check
R3829

No
Change
L3821,
L3822,
L3823,L243

Check U3701
Pin 2 for 3.2V
A

Yes

Pin 19 =0V

Yes

V ctrl 0V
or 13V?

Yes

No
No
AUX 3
Low?

Check for faulty parts or dry
joints of L3812 C3806,
R3806, R3802 & L3801
No

Yes
Change
U3801

Troubleshooting Flow Chart for VCO

Change
U3701

L3821,
L3822, L3823
Open Circuit?

No
Change
U3801

5B-1

Section 5B
MODEL CHART AND TEST SPECIFICATIONS (403-470
MHZ)
1.0

Model Chart

GP Series, UHF Band 1, 403-470 MHz
Model

Description

AZH38RDC9AA2

GP328 Plus 403-470 MHz 4W 4 CH

AZH38RDC9AA3

GP328 Plus 403-470 MHz 4W 16 CH

AZH38RDH9AA6

GP338 Plus 403-470 MHz 4W 128 CH

AZH38RDH9DU6

Item
X

GP338 XLS 403-470 MHz 4W 160 CH

Description

PMUE2048_

GP328 Plus Super Tanapa 403-470 MHz 4W 4CH

PMUE1699_

GP328 Plus Super Tanapa 403-470 MHz 4W 16CH

PMUE1700_

GP338 Plus Super Tanapa 403-470 MHz 4W 128CH

PMUE1876_

GP338 XLS Super Tanapa 403-470 MHz 4W 160CH

PMUE2050_

GP328 Plus Tanapa 403-470 MHz 4W 4CH

PMUE1703_

GP328 Plus Tanapa 403-470 MHz 4W 16CH

PMUE1704_

GP338 Plus Tanapa 403-470 MHz 4W 128CH

PMUE1878_

GP338 XLS Tanapa 403-470 MHz 4W 160CH

PMHE4026_

GP328 Plus B/C Kit 403-470 MHz 4W 4CH

JMHE4001_

GP328 Plus B/C Kit 403-470 MHz 4W 16CH

PMHE4010_

GP338 Plus B/C Kit 403-470 MHz 4W 128CH

PMHE4020_

GP338 XLS B/C Kit 403-470 MHz 4W 160CH

PMHE4024_

GP328 Plus Front Housing Kit 4CH

PMHE4000_

GP328 Plus Front Housing Kit 16CH

PMHE4001_

GP338 Plus Front Housing Kit 128CH

X

PMHE4018_

GP338 XLS Front Housing Kit 160CH

X
X
X
X
X
X
X
X
X
X
X
X
X
X
X

X

X

X

NAE6483_

Monopole (Whip) antenna (403-520 MHz)

X

X

X

X

PMAE4002_

UHF 9 cm antenna (403-433 MHz) Stubby

X

X

X

X

PMAE4003_

UHF 9 cm antenna (430-470 MHz)

X

X

6804022G48

GP328 Plus User Guide

6804112J64

GP338 Plus User Guide

6804114J01

GP338 XLS User Guide

X
X

x = Indicates one of each is required.

5B-2

2.0

Specifications (for GP328 Plus)

Specifications (for GP328
Plus)
General
UHF

Transmitter
UHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

403-470 MHz

Frequency

403-470 MHz

Channel Capacity:

GP328 Plus : 4/16 Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz
+1, -3 dB

101mm x 55.5mm x
35.5mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

<5%

250 g

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

7.5 Volts ±20%
101.5mm x 55.5mm x
30.5mm

270 g

Receiver

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low Power

Sealing:

Meets MIL-STD-810-C,
D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

UHF
12.5kHz

UHF 20/
25kHz

Frequency:

403470MHz

403470MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

High Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:

Meets MIL-STD-810C,D & E and TIA/EIA 603

FCC ID

AZ489FT4844

All specifications are subject to change without notice.

Specifications (for GP338 Plus/GP338 XLS)

3.0

5B-3

Specifications (for GP338
Plus/GP338 XLS)
General
UHF

Transmitter
UHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

403-470 MHz

Frequency

403-470 MHz

Channel Capacity:

GP338 Plus 128 Channels/GP338 XLS 160
Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

7.5 Volts ±20%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz

101.5mm x 55.5mm x
33.0mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

+1, -3 dB

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.

<5%

FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

101mm x 55.5mm x
38.0mm

265 g

Receiver

285 g

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low
Power

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:
FCC ID

Meets MIL-STD-810C,D & E and TIA/EIA 603
AZ489FT4844

UHF
12.5kHz

UHF 20/
25kHz

Frequency:

403470MHz

403470MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

All specifications are subject to change without notice.

5B-4

4.0

Transmitter

Transmitter

PCIC

From VCO

Antenna
Jack

Vcontrol

Vcontrol

PA
Driver

PA-Final
Stage

Antenna Switch/
Harmonic Filter/
Matching Network

Figure 5-1: Transmitter Block Diagram

4.1

General
(Refer to Figure 5-1)
The UHF transmitter contains five basic circuits:
1. Power Amplifier
2. Antenna Switch
3. Harmonic Filter
4. Antenna Matching Network
5. Power Control Integrated Circuit (PCIC).

4.1.1 Power Amplifier
The power amplifier consists of two devices:
1. 9Z67 LDMOS driver IC (U101) and
2. PRF1507 LDMOS PA (Q110).
The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V.
This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input
signal of 2mW (3dBm) (pin16). The current drain would typically be 160mA while operating in the
frequency range of 403-470MHz.
The PRF1507 LDMOS PA is capable of supplying an output power of 7W with an input signal of
0.3W. The current drain would typically be 1300mA while operating in the frequency range of 403470MHz. The power output can be varied by changing the biasing voltage.

Transmitter

5B-5

4.1.2 Antenna Switch
The antenna switch circuit consists of two PIN diodes (CR101 and CR102), a pi network (C107, L104
and C106), and two current limiting resistors (R101, R170). In the transmit mode, B+ at PCIC (U102)
pin 23 will go low and turn on Q111 where a B+ bias is applied to the antenna switch circuit to bias the
diodes "on". The shunt diode (CR102) shorts out the receiver port, and the pi network, which
operates as a quarter wave transmission line, transforms the low impedance of the shunt diode to a
high impedance at the input of the harmonic filter. In the receive mode, the diodes are both off, and
hence, there exists a low attenuation path between the antenna and receiver ports.

4.1.3 Harmonic Filter
The harmonic filter consists of C104, L102, C103, L101 and C102. The design of the harmonic filter
for UHF is that of a modified Zolotarev design. It has been optimized for efficiency of the power
module. This type of filter has the advantage that it can give a greater attenuation in the stop-band for
a given ripple level. The harmonic filter insertion loss is typically less than 1.2dB.

4.1.4 Antenna Matching Network
A matching network which is made up of L116 is used to match the antenna's impedance to the
harmonic filter. This will optimize the performance of the transmitter and receiver into an antenna.

4.1.5 Power Control Integrated Circuit (PCIC)
The transmitter uses the Power Control IC (PCIC), U102 to regulate the power output of the radio.
The current to the final stage of the power module is supplied through R101, which provides a voltage
proportional to the current drain. This voltage is then fedback to the Automatic Level Control (ALC)
within the PCIC to regulate the output power of the transmitter.
The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the
control loop. The reference voltage level is programmable through the SPI line of the PCIC.
There are resistors and integrators within the PCIC, and external capacitors (C133, C134 and C135)
in controlling the transmitter rising and falling time. These are necessary in reducing the power
splatter into adjacent channels.
CR105 and its associated components are part of the temperature cut back circuitry. It senses the
printed circuit board temperature around the transmitter circuits and output a DC voltage to the PCIC.
If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be
reduced so as to reduce the transmitter temperature.

5B-6

5.0

Receiver

Receiver
Antenna

RF Jack

Pin Diode
Antenna
Switch

Varactor
Tuned Filter

RF Amp

Varactor
Tuned Filter

Mixer

Crystal
Filter

IF Amp

AGC

Control Voltage
from ASFIC

First LO
from FGU

Recovered Audio
Squelch

Demodulator
U301

RSSI
IF

16.8 MHz
Reference Clock

IC

Synthesizer

SPI Bus
Second
LO VCO

Figure 5-2: UHF Receiver Block Diagram

5.1

Receiver Front-End
(Refer to UHF Receiver Front End Schematic Diagram on page 5B-21 and UHF Transmitter
Schematic Diagram on page 5B-25)
The RF signal is received by the antenna and applied to a low-pass filter. For UHF, the filter consists
of L101, L102, C102, C103, C104. The filtered RF signal is passed through the antenna switch. The
antenna switch circuit consists of two PIN diodes(CR101 and CR102) and a pi network (C106, L104
and C107).The signal is then applied to a varactor tuned bandpass filter. The UHF bandpass filter
comprises of L301, L302, C302, C303, C304, CR301 and CR302. The bandpass filter is tuned by
applying a control voltage to the varactor diodes(CR301 and CR302) in the filter.
The bandpass filter is electronically tuned by the DACRx from IC404 which is controlled by the
microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the
varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter
across the band.
The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being
amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass
filter, consisting of L306, L307, C313, C317, CR304 and CR305.
Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth
of the filter is about 50 MHz. This enables the filters to be electronically controlled by using a single
control voltage which is DACRx .

Receiver

5B-7

The output of the post-RF amplifier filter which is connected to the passive double balanced mixer
consists of T301, T302 and CR306. Matching of the filter to the mixer is provided by C381. After
mixing with the first LO signal from the voltage controlled oscillator (VCO) using low side injection, the
RF signal is down-converted to the 45.1 MHz IF signal.
The IF signal coming out of the mixer is transfered to the crystal filter (FL301) through a resistor pad
and a diplexer (C322 and L310). Matching to the input of the crystal filter is provided by C324 and
L311. The crystal filter provides the necessary selectivity and intermodulation protection.

5.2

Receiver Back-End
(Refer to UHF Receiver Back End Schematic Diagram on page 5B-22)
The output of crystal filter FL301 is matched to the input of IF amplifier transistor Q302 by
components R352 and C325. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5).
The IF amplifer provides a gain of about 7dB. The amplified IF signal is then coupled into U301(pin 3)
via C330, C338 and L330 which provides the matching for the IF amplifier and U301.
The IF signal applied to pin 3 of U301 is amplified, down-converted, filtered, and demodulated, to
produce the recovered audio at pin 27 of U301. This IF IC is electronically programmable, and the
amount of filtering (which is dependent on the radio channel spacing) is controlled by the
microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is
replaced by internal filters in the IF module (U301).
The IF IC uses a type of direct conversion process, whereby the externally generated second LO
frequency is divided by two in U301 so that it is very close to the first IF frequency. The IF IC (U301)
synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO
is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF
IC.
In the absence of an IF signal, the VCO will “search” for a frequency, or its frequency will vary close to
twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The
second LO/VCO is a Colpitts oscillator built around transistor Q320. The VCO has a varactor diode,
CR310, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter
consisting of C362, C363, C364, R320 and R321.
The IF IC (U301) also performs several other functions. It provides a received signal-strength
indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor,
and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The
RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end.
The demodulated signal on pin 27 of U301 is also used for squelch control. The signal is routed to
U404 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio
signal is also routed to U404 for processing before going to the audio amplifier for amplification.

5B-8

5.3

Receiver

Automatic Gain Control Circuit
(Refer to UHF Receiver Front End Schematic Diagram on page 5B-21)
The front end automatic gain control circuit is to provide automatic gain reduction of the front end RF
amplifier via feedback. This action is necessary to prevent overloading of back end circuits. This is
achieved by drawing some of the output power from the RF amplifier’s output. At high radio
frequencies, capacitor C331 provides the low impedance path to ground for this purpose. CR308 is a
PIN diode used for switching the path on or off. A certain amount of forward biasing current is needed
to turn the PIN diode on. Transistors Q315 provides this current where upon saturation, current will
flow via R347, PIN diode, collector and emitter of Q315 and R319 before going to ground. Q315 is an
NPN transistor used for switching here. Maximum current flowing through the PIN is mainly limited by
the resistor R319.
Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q315 to saturation hence
turning it on. RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the
input RF signal power to the radio.
Resistor network at the input to the base of Q315 is scaled to turn on Q315, hence activating the
AGC, at certain RSSI levels. In order to turn on Q315, the voltage across the transistor’s base to
ground must be greater or equal to the voltage across R319, plus the base-emitter voltage (Vbe)
present at Q315. The resistor network with thermistor RT300 is capable of providing temperature
compensation to the AGC circuit, as RSSI generated by U301 is lower at cold temperatures
compared to normal operation at room temperature. Resistor R300 and capacitor C397 form an R-C
network used to dampen any transient instability while the AGC is turning on.

Frequency Generation Circuitry

6.0

5B-9

Frequency Generation Circuitry

Dual
Transistor

Voltage
Multiplier

TRB

VCP
Aux3
Vmult1
Vmult2

Synthesizer
U201

16.8 MHz
Ref. Osc.

Rx VCO Circuit

Aux4

Loop
Filter

MOD Out

Rx Out

Matching
Network

Low
Pass
Filter

Attenuator

To
PA Driver

VCOBIC
U241
Tx Out

To
Mixer

Tx VCO Circuit

Modulating
Signal

Figure 5-3: Frequency Generation Unit Block Diagram
The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer
(U201), and the VCO/Buffer IC (U241). Designed in conjunction to maximize compatibility, the two
ICs provide many of the functions that normally would require additional circuitry. The synthesizer
block diagram illustrates the interconnect and support circuitry used in the region. Refer to the
relevant schematics for the reference designators.
The synthesizer is powered by regulated 5V and 3.3V which come from U247 and U248 respectively.
The synthesizer in turn generates a superfiltered 4.5V which powers U241.
In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry.
Programming for the synthesizer is accomplished through the data , clock and chip select lines from
the microprocessor. A 3.3V dc signal from synthesizer lock detect line indicates to the microprocessor
that the synthesizer is locked.
Transmit modulation from the ASFIC is supplied to pin10 of U201. Internally the audio is digitized by
the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs
through an internal attenuator for modulation balancing purposes before going out to the VCO.

5B-10

6.1

Frequency Generation Circuitry

Synthesizer
(Refer to UHF Synthesizer Schematic Diagram on page 5B-23)
The Fractional-N Synthesizer uses a 16.8MHz crystal (FL201) to provide a reference for the system.
The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference
frequencies. Together with C206, C207, C208, R204 and CR203 , they build up the reference
oscillator which is capable of 2.5ppm stability over temperatures of -30 to 85×C. It also provides
16.8MHz at pin 19 of U201 to be used by ASFIC and LVZIF.
The loop filter which consist of C231, C232, C233, R231, R232 and R233 provides the necessary dc
steering voltage for the VCO and determines the amount of noise and spur passing through .
In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at
pin 45 of U201 to put synthesizer within the lock range. The required frequency is then locked by
normal mode charge pump at pin 43 .
Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which
is made up of C258, C259, C228, triple diode CR201 and level shifters U210 and U211. Two 3.3V
square waves ( 180 deg out of phase) are first shifted to 5V, then along with regulated 5V , put
through arrays of diodes and capacitors to build up 13.3V at pin 47 of U201.

7

DATA (U409 PIN 100)

8

CLOCK (U409 PIN 1)

9
CSX (U409 PIN 2)
10

MOD IN (U404 PIN 40)
+5V (U247 PIN 4)
(U248 PIN 5)

13, 30
5, 20, 34, 36

REFERENCE
OSCILLATOR

23
24
25
32
47

VOLTAGE
MULTIPLIER

LOCK

4

LOCK (U409 PIN 56)

FREFOUT

19

FREF (U201 PIN 21 & U404 PIN 34)

DATA
CLK

GND
U251
LOW VOLTAGE
MODIN
FRACTIONAL-N
IOUT
SYNTHESIZER IADAPT
VCC, DC5V

6, 22, 23, 24

CEX

MODOUT

VDD, 3.3V

43
45

AUX4

3

XTAL2

AUX3

2

SFOUT

2-POLE
LOOP
FILTER

41

XTAL1

WARP

STEERING
LINE

LO RF INJECTION
DUAL
TRANSIS
TORS

28 FILTERED 5V

PREIN
BIAS1

VCP
VMULT2
14

VMULT1 AUX1 BIAS2
15

48

VOLTAGE
CONTROLLED
OSCILLATOR

40
TX RF INJECTION
(1ST STAGE OF PA)

39

DUAL
5V TRANSISTORS

R5

PRESCALER IN

Figure 5-4: Synthesizer Block Diagram

Frequency Generation Circuitry

6.2

5B-11

VCO - Voltage Controlled Oscillator
(Refer to UHF Voltage Controlled Oscillator Schematic Diagram on page 5B-24)
5V
AUX3 (U201 Pin2)
Level Shifter
Network

Pin 20
Rx-SW

Pin7

Tx-SW

Pin13

(U201 Pin28)
VSF
Steer Line
Voltage
(VCTRL)

U201 Pin 32

Prescaler Out

TRB_IN
Pin 19

AUX4 (U201 Pin3)

Pin 12

TX/RX/BS
Switching Network

Vcc-Superfilter
Pin3

LO RF INJECTION

Presc

U241
VCOBIC

Matching
Network

Low Pass
Filter

Collector/RF in
Pin4
RX Tank

RX VCO
Circuit

TX VCO
Circuit

Rx
Active Bias

Pin5
Pin6

TX Tank

RX

RX

Pin8
VSF
Pin14

TX

Pin16
Pin15

Tx
Active Bias

TX

Pin10

Vcc-Logic

TX RF Injection
Attenuator

Vsens
Circuit

Pin18

(U201 Pin28)
VCC Buffers

Pin2

Pin1

Rx-I adjust

Tx-I adjust

Pins 9,11,17

VSF
(U201 Pin28)

Figure 5-5: VCO Block Diagram
The VCOBIC (U241) in conjunction with the Fractional-N synthesizer (U201) generates RF in both the
receive and the transmit modes of operation. The TRB line (U241 pin 19) determines which oscillator
and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed from U241
pin 12, through a low pass filter, to the prescaler input (U201 pin 32). After frequency comparison in
the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage is a DC
voltage between 3.5V and 9.5V when the PLL is locked on frequency.

5B-12

Frequency Generation Circuitry

The VCOBIC(U241) is operated at 4.54 V (VSF) and Fractional-N synthesizer (U201) at 3.3V. This
difference in operating voltage requires a level shifter consisting of Q260 and Q261 on the TRB line.
The operation logic is shown in Table 5-1.
Table 5-1: Level Shifter Logic

Desired
Mode

AUX 4

AUX 3

TRB

Tx

Low

High
(@3.2V)

High (@4.8V)

Rx

High

Low

Low

Battery Saver

Low

Low

Hi-Z/Float
(@2.5V)

In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the
receive oscillator and the receive buffer of U241. The RF signal at U241 pin 8 is run through a
matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at
T302 (refer to UHF Receiver Front End Schematic Diagram on page 5B-21).
During the transmit condition, when PTT is depressed, five volts is applied to U241 pin 19. This
activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241. The RF
signal at U241 pin 10 is injected into the input of the PA module (U101 pin16). This RF signal is the
TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the
carrier is received through the U201 pin 41.
When a high impedance is applied to U241 pin19, the VCO is operating in BATTERY SAVER mode.
In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler
buffer are turned off.

Notes For All Schematics and Circuit Boards

7.0

5C-13

Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads
(pF) or microfarads (µF).
2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with
the voltage probe to prevent circuit loading.
3. Reference Designators are assigned in the following manner:
100 Series

=

Transmitter

200 Series

=

Frequency Generation

300 Series

=

Receiver

400/500 Series =

Controller

600 Series

Keypad Board

=

4. Interconnect Tie Point Legend:
UNSWB+

=

Unswitch Battery Voltage (7.5V)

SWB+

=

Switch Battery Voltage (7.5V)

R5

=

Receiver Five Volts

CLK

=

Clock

Vdda

=

Regulated 3.3 Volts (for analog)

Vddd

=

Regulated 3.3 Volts (for digital)

CSX

=

Chip Select Line (not for LVZIF)

SYN

=

Synthesizer

DACRX

=

Digital to Analog Voltage (For Receiver Front End Filter)

VSF

=

Voltage Super Filtered (5 volts)

VR

=

Voltage Regulator

6-LAYER CIRCUIT BOARD DETAIL VIEWING
COPPER STEPS IN PROPER LAYER SEQUENCE
SIDE 1
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
SIDE 2

INNER LAYERS

5C-14

Notes For All Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

Circuit Board/Schematic Diagrams and Parts List

Circuit Board/Schematic Diagrams and Parts List

C522
VR441
PB502

PB504

PB501

R327

R346

R342

R301

L114

C113

C514

C302

PB505
L116

C140

CR101

C102

C109

C101

C112

L102

L101

C106

L105

C166

1

C171

C103

R173

C107

CR102

R120

3

SH100

L104

Q110

L107
C110

C125

C122

C161

16

C114

9

C119

L115

U101

2

C104

R171

1

3

R103

R104

R106

C127 C117

L113
C129 C165

C374

C116

8

R161

C276

L243

C115
L109

R107

C271
R333
SH241

C520

SH301

C118

C286

1

L271
L321

R108

C160

L273
R339 C386

L160

Q241
R243

C285

C121

L108

L282

R248

C169

3

VR443

C273
C120

4
3

R260
Q261

R253
C370 C272

L253

4
CR503
2

R501

CR301
C301

1

C303

C308

R302

L301

C253

3
C511

CR302

C381

SH303

C305

L302

C304

4

C211

C247 C248

Q502

R502

CR308

6

R336

T301

L309

C513

C512

C331

R317

L310

3

C320

C319

C375

C233

TP202
C238

C251

C505
R505

C333

R308

L232

R507

L332

CR310

R324

R319

R345

Q505

C350

SH321

C322

R310

R309

3

4

TP302
C203

6

C230

4
3

Q320

Q315

R318

R348

C257

R506

C385
C353 C384

R355
C349

T302

R256

C213

C352

VR501

C396

R255

4
3

C351

U247

L202

L201

Q210

C212
C297
C210
Q260

C217
C214

C229

C228
CR201

C292

Q316

SH323
C260

RT300

L311

L203

40

C323

C324

C294
C235

C291

C220

L325
C354

R325

SH201

C363
R322

TP201

C364

R326

J200

C391

R338

C362
R320

C325

R321

R316

R335

C328

VR300

R351

FL301

RT301

R314

R334

C397

B504

B503

FL201

C521

VR440
R300

C502

R352

C554

3

VR444

1

C289

8.0

5B-15

C141

L106
C131

C111

SH101

UHF (403-470MHz) Main Board Top Side PCB No. 8404077G05/G06/G07

5B-16

Circuit Board/Schematic Diagrams and Parts List

C523

VR442

VR506

1

C277
R231 R232

C258

C201

R131

R132

C202

4
C296

U211
3

C259
R332
C373

L251
CR251

R254

11
R331 R330

Q310
R349

R251 C255

U241
C281 R245 10

C372 C371

C254 C252

R252

20

1

R244

C244

C295

R110
R112

C378

C174

R130

1

25
CR105

C105

C173

R133

C133
R109

L281

R111

L241
CR241

C250 C246
R241
R242

C553

R511

C218 C207

3

13

C243 C245

L242

C135

CR243

C134

C152

U102

17

L112

C150
C138 C151

R172

C172

C242

C241

CR242

9

C126

R102

H101
C132

R170

P100

R101

C551

4

VR439

R329

C317

CR305

R307

CR304

3
4

C108

R281

U210

1

R510
C550

C265

SH242
C123

C547

C549

U201

C316

Q111

J102

C231

F501

R233

C395

C311 R347

C313

C170

UHF (403-470MHz) Main Board Bottom Side
PCB No. 8404077G05/G06/G07

37

C224
C318

C546

R204
25

C380

C130

2

C223

R201

C232

L307

R306

C321

R305

L304

C314

Q301
R304

C312

CR303

L303

R340 C307
R328

L306

8
2

C

S501

1
C
4

CR306

R509

C548

C234

L305

C555

CR203

C204

C219

C128

3

C264

C298

C293

C337

C348

C356

C347

L314

E101

4

C208

CR501

C315

C542

C545

C263

SH302

J101

C279

C278

U248

2

B501

SH202

R202

C306

C540

C544

SH304

C310

C538

C543

3

C336

C355

1

37

R312

SH322

R303 C309

C536

C541

C503

L340

C534

C539

L261

C342

C341

C340

C339

C329

C343

C532

C537

R311

R315

C361

C530

C535

C206

C360

C327

C346

C528

C529

C533

Q302

C344

R344

U301

C383

R350

C526

C531

C330

13

25

C390

5

3

C326

C358
C357

C525
C527

C338

L331

2

L330

R313

C382

S502

C334

C345

C359

R343

L505

4

C552

Circuit Board/Schematic Diagrams and Parts List

5B-17

C522

C521

VR441

PB504

PB502

PB501

VR440

1

TP202

C238

C320

L309

R345

R346

R320
C364
R322

C396
C333
R317 C331
R336

L302

R342

SH303

C512

C304
CR302
R302
R301
CR301

4

3

R505

SH321

C381

T301

Q505

C350

9

16

L115

L114

R173
C171

C107

L107
C112

C166
C131

CR503

4
2

R501
C520

1

L104
C106

L106

PB505

CR102

L102

C103

1

VR443

3

C175

3

C104

R171

L108

3

C161
SH241

U101

Q110

C119

C114
C110

L273

8

C127 C117

C301

L116

L101

C140

C102

C113

L243

R502

SH100

2

R103 R175
R174

C109

CR101

R107

C115
C116

R104
R120

1

C118 L109
R106

C271

R108

Q502

SH301

R176

C121

C169
L113
C165
C129 C125
C122

4
3

C285
R243 C286

L160
C160

R161

3

C120

Q241

R333
C374 C276

L253

C273

R248 L282

L271

1

C370 C272 R253

C253

C247 C248

Q261

R339 C386
L321

C251

C289
R260

L301

C513

C305

6

6

Q315

R318

L310

R308

Q320

C384

C511
C514

L232

R309

T302

R348

R310

R355

C353

C303

C213
C211

C203

3

4

TP302

C352

R506

C385

C302

R327

C349

L325

L105

C101

U247

C375
C319

C233

C212
C210

CR201

Q316

L202

L201

C260

C257

L311

SH323

Q210
C228 C229
4
R255
C297
3
R256
C214
Q260
4 3 C230
C292

C323

C351

VR501

L332

C308

L203
C217

C291

C235

C220

C324

C294

C363

C362

R507

CR310

C354
R324

SH201

R321

CR308

TP201

J200

VR300

R335
R326 C391 R338
R325

R319

C328

C325

RT300

4

R314 RT301 R334

R316

R351

FL301

C322

6

C397

B504

B503

FL201

C502

R352

R300

3

1

40

C505

VR444 C554

C141

C111

SH101

ZMY0131016-O
UHF (403-470MHz) Main Board Top Side PCB No. 8404077G09

Circuit Board/Schematic Diagrams and Parts List

C318

1

R133
P100

C218 C207
3 4

CR241

25

C173
CR105

R130
R131

C105

1

C133
C174R109

C378

C252
CR251

R251
R252

C244

R244

R349

C255
11

10

L281

R254
C254

U241

L251

C372 C371
R331 R330
Q310

R332

9
U102

R172

C242

CR243

C243C245
C250C246
R241
R242

C373

R132

ZMY0131017-O

UHF (403-470MHz) Main Board Bottom Side PCB No. 8404077G09

R510

C206

R231 R232

U211

20

1

C281 R245

C126

CR242

C150
C152 L112
C138C151

17
C172

L241

C128
C130

L242

Q111

C108
2

R102

C241

C123

C135
C134
R136

CR103

3

C224

R112 R110
R111 C295

J102

H101

C132

C234

C547

C551 C552
C553

SH242

C316

C170

3
4

13
C259

R315

R329

C298
C202

Q302

CR501

C548
C549

C526
C528
C530
C532
C534
C536
C538
C540
C542
C555
R509

R281
C265
4
3

U210

1

VR439

C317

C380

CR305

C310 C311
C314
C306
C315
C312
L304 C321
L305
C313
R305

L307

U201

C525
C527
C529
C531
C533
C535
C537
C539
C541
C543
C544
C545
C546

C550

C296
C258

C330

C293

L306

C232

CR203

C204

25

37

R202
R201

C208
R204

C219

CR306

R101

4

C277

R343

C395

R170

J101

C263
L261 C264
C223

F501

E101

CR160

SH202

C503

R347

C279
U248

3

L314

R306
R307

R328

R303 C309

C278

2

SH304

CR304

2

R340

L340

CR303

C307 L303

C

R304

4

B501

SH302

Q301

S501

C

1

R311
R312

SH322
8

C523

VR506

R233 C201
C231

C337

C356
C348

C342

C341

C340

C339

L331
C361

C329

1
C347

C344

C360

U301

37

C343

R350

C327

3

13

25

C326
R313

5

C358

L330
C338

C336

C357
C390
C383 R344
C346

C355

2

C382

C359
S502

L505

C334

C345

4

R511

5B-18

Circuit Board/Schematic Diagrams and Parts List

5B-19

B503
B504

C525
100pF

C526
100pF

C527
100pF

C528
100pF

C529
100pF

C530
100pF

C531
100pF

C532
100pF

C533
100pF

C534
100pF

C535
100pF

C536
100pF

C537
100pF

MECH_SWB+

C538
100pF
R5

J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20

PTT
SB1
SB2
SB3
EMER
VOL
RED_LED
GREEN_LED
MECH_SWB+
RTA0
RTA1
RTA2
RTA3
RSSI
CLK
DATA
LVZIF_SEL
CSX
BATT_CODE

R509
NU

J200-21

LVZIF_SEL
DACRx
DATA
CLK

RECEIVER

DEMOD
RSSI

DATA
CLK

TAB2
TAB1

3

2

1

RX_IN

2

6.8V
VR501

C505
100pF

5V

16.8MHz

1 A1
3 A2
C522
.01uF

PB504
SWITCH

B1 2
B2 4

C521
NU

MODIN

CSX
MODIN

EMER
C520
.01uF

VR444

6.8V

DATA

FGU

LOCK

LOCK
Q502

C542
NU

C543
NU

C544
100pF

C545
100pF

C546
100pF

C547
100pF

C548
NU

C549
100pF

C550
100pF

C551
100pF

C552
100pF

IMX1

4 1

2

RED_LED

5V

UNSWB+

5V

C553
100pF

CR503
CSX

TRANSMITTER

Q505

R501
680

R502
180

1

3

2

4

RESET
TX_INJ

RESET

GREEN_LED

S501
SWITCH

RTA3
1
2
4
C0
C1

RTA0
RTA1
RTA2

ZMY0130796-A

R506
47K

DATA
CLK

RX_IN

B1 2
B2 4

R505
10K

5

3 6
UNSWB+

1 A1
3 A2

VR443
6.8V

Vdda

SWB+

CLK
16.8MHz
TX_INJ

RX_INJ

PB505
SWITCH

B1 2
B2 4

1 A1
3 A2

C554
.01uF

UNSWB+

C541
NU

B1 2
B2 4

VR440
6.8V

PB501
SWITCH

R510
0

C540
NU

1 A1
3 A2

PTT

VR441
6.8V

SB1

Vdda SWB+

16.8MHz

C539
NU

VR506
6.8V

C503
100pF

PB502
SWITCH

RSSI

C523
.01uF

CSX

5V
Vdda

LOCK
RESET
DACRX

CONN_J

Vdda

DEMOD

5V

SWB+

J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40

BATT-

RX_INJ

DEMOD

SWB+

6

VR439
12V

VOL

SWB+

MODIN

CR501
1

SB3

LI_ION

R511
NU

7

R507
0

LVZIF_SEL
DACRX

S502
SWITCH
5

SB2
16.8MHz

R5

J200-32

C502
0.47uF

Vdda

C555
100pF

J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31

4

HIGH

Vdda

BATTERY_CONTACT
L505
B501
390nH RADIO_CODE 2
DATA
GND1 NEG
3
BATT+
POS

UNSWB+ BATT_CODE
F501
24V
1
2

LOW

LI_ION

C511
100pF

C512
100pF

C513
100pF

C514
100pF

PC0
PC1
PC2
PC3 8
C0
C1
GND GND1
7
9

UHF Controls And Switches Schematic Diagram (sheet 1 of 2)

5B-20

Circuit Board/Schematic Diagrams and Parts List

B503

LI_ION

UNSWB+

B504
Vdda
C528
100pF

C529
100pF

C530
100pF

C531
100pF

C532
100pF

C533
100pF

C534
100pF

C535
100pF

C536
100pF

C537
100pF

C538
100pF
R5

J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20

PTT
SB1
SB2
SB3
EMER
VOL
RED_LED
GREEN_LED
MECH_SWB+
RTA0
RTA1
RTA2
RTA3
RSSI
CLK
DATA
LVZIF_SEL
CSX
BATT_CODE

R509

J200-21

DACRx

RECEIVER

CLK

CLK

16.8MHz

RSSI

6.8V
VR501

C505
100pF

16.8MHz

C522
.01uF

1 A1
3 A2
VR441
6.8V

SB1
MODIN

SWB+

MODIN

LOCK

SWB+

NU
R510
0

C521
NU

CSX

C554
.01uF

MODIN

1 A1
3 A2
VR444
6.8V

B1 2
B2 4

Q502
2

LOCK
RESET
DACRX
C541
NU

C542
NU

C543
NU

C544
100pF

C545
100pF

C546
100pF

C547
100pF

C548
NU

C549
100pF

C550
100pF

C551
100pF

C552
100pF

4 1

C553
100pF

5V

CSX

TRANSMITTER
RX_IN

R505
10K

IMX1
5
Q505

GREEN_LED

R502
180

CR5031

3

2

4

DATA
CLK

RESET
TX_INJ

RESET
S501
SWITCH

RTA3
RTA0
RTA1
RTA2
C511 C512
100pF 100pF

C513
100pF

C514
100pF

1 PC0
2 PC1
4 PC2
PC3
C0 C0
C1C1
GND GND1
7
9

ZMY0130796-B

UHF Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404077G09 PCB)

R506
47K

5V
R501
680

UNSWB+

C540
NU

Vdda

LOCK

UNSWB+

C539
NU

C520
.01uF

SWB+

RED_LED

UNSWB+

1 A1
3 A2
VR443
6.8V

EMER

3 6

J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40

B1 2
B2 4

PB505
SWITCH

PB504
SWITCH

16.8MHz
TX_INJ

RX_INJ

1 A1
3 A2
VR440
6.8V

PTT

CLK

16.8MHz
R511

B1 2
B2 4

DATA

FGU

5V
Vdda

PB501
SWITCH

SB3
C523
.01uF

CSX

VR506
6.8V

C503
100pF

2

Vdda

SWB+
Vdda SWB+

2

PB502
SWITCH
SB2

5V

5V

VR439
12V

VOL

DEMOD

RX_INJ

DEMOD

J200-32

DATA

DEMOD

RX_IN

DACRX

1

CR501
1

TAB27
TAB16

1

BATTERY_CONTACT
B501
RADIO_CODE 2 DATA
1 NEG
GND
3 POS
BATT+
CONN_J
BATT-

R507
0

LVZIF_SEL

DATA

RSSI

R5
J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31

3

LVZIF_SEL

LI_ION

NU
C555
100pF

C502
0.47uF

Vdda

LOW

C527
100pF

HIGH

C526
100pF

2

C525
100pF

F501
24V

S502
5
4 SWITCH

MECH_SWB+

L505
390nH

BATT_CODE

8

B1 2
B2 4

Circuit Board/Schematic Diagrams and Parts List

5B-21

DACRx
C322
82pF

R5

R342
100K
L310
150nH

R305
510

C314
0.1uF

R308
270

C315
100pF

R304
12K
L304
180nH

C321
100pF

C306
NU

C310
0.1uF
R301
100K
C301
3.6pF

C303
3.9pF

R302
100K

R306
100K

C312
6.8pF

L305
27nH

R303
1K
C305
20pF

C307
0.1uF

R307
100K

C316
3.9pF

CR304
Q301

CR302

R329
0

4

2

3

L301
13.9nH

L302
13.9nH

C304
9.1pF

2

1

L303
220nH

2

T302 1
XFMR
C311
NU

L306
13.9nH

C313
10pF

L307
13.9nH

C317
9.1pF

3

C381
9.1pF

R328
2.7
C302
10pF

1

CR305

3

2

CR303

3

2

C318
7.5pF

3
CR301

CR306

1

1

RX_IN

IF
4

T301
XFMR
6

C309
100pF

C308
100pF

R310
270
R309
18

C380
.01uF

6

4

R340
6.8K
R348
3.6K

L309
16.28nH

TP302
C320
7.5pF

R5
R5
L340
390nH
SH301
SHIELD

SH302
SHIELD

SH303
SHIELD

R347
1K

RXFE Top Shield

1
RXFE Bottom Shield

3
2

C395
100pF

L321
NU

C331
100pF

C396
NU

R336
NU

C333
NU

C373
NU

3
Q310
NU

1

RX_INJ

C378
NU

2

R300
2.2K

R316
91K
3

C374
100pF
R349
0

C386
100pF

C370
100pF

Mixer Shield

R5
1

R333
NU

R339
0

1

SH304
SHIELD

C375
100pF

R317
1K

1

R332
NU
1

C319
1.8pF

CR308
HSMP3820

RSSI

Q315
1

R330
NU

C397
1uF

RX Mixer Diod Shield

C371
NU

R331
NU

C372
NU

R318
18K

2

R319
150

1
RT300
33.0K

R327
33K
3
1
2

Q316
NU

R5
2

VR300
NU
R325
6.8K

R326
NU

R335
NU

R338
NU

2

C391
NU

1
RT301
NU

R334
NU

UHF Receiver Front End Schematic Diagram

5B-22

Circuit Board/Schematic Diagrams and Parts List

L331
2.2uH

R343
10

Vdd_FILTERED

Vdda
C382
10uF

(SOURCE)
DEMOD
C347
0.1uF

C348
0.1uF

C344
0.1uF

C346
0.1uF

R350
100K

C345
0.1uF

C390
100pF

C329
0.1uF
C343
0.22uF
R344
12K
SH323
SHIELD

SH321
SHIELD

SH322
SHIELD
C342
1uF

37
38
39
40
41
42
43
44
45
46
47
48

C339
1uF

Vdd_FILTERED

C356
.022uF

L314
2.2uH

C337
100pF

C336
0.1uF
R314
3K

C326
.01uF

R313
330

C328
0.1uF

C4P
C3P
C2P
C1P
GREEN_VCC
MIX_BYP
GREEN_VSS
BLUE_VSS
BLUE_VCC
MIX_IN
PREAMP_OUT
PRE_AGC

R5 C355
0.15uF

U301
32D83

C338
15pF

L311
750nH

IF

IN

OUT

R351
0

3
R352
3.3K

1
2
4
5

C324
20pF

6

GND
GND1
GND2
GND3

C323
150pF

C327
100pF

R311
30K

UHF Receiver Back End Schematic Diagram

C325
.01uF

R312
2.4K

R315
12K

C361
.01uF
C330
10pF

Q302

C360
.022uF
L330
680nH

C359
0.1uF
24
23
22
21
20
19
18
17
16
15
14
13

C352
12pF

Vdd_FILTERED

Q320
BFQ67W

C334
.022uF

LVZIF_SEL
CLK
DATA

2

C353
43pF

C349
.022uF C351
20pF

16.8MHz

C350
330pF

R320
3.9K

C362
0.1uF

R345
10K

R321
1K

C364
8200pF

C384
56pF

R346
56K
C385
56pF

C354
47pF

R324
2K

C363
1uF

RSSI
FL301
XTAL
TBD

MLPD_CR
BRP_OFF
BROWN_VCC
FREF
GND
CEX
CLK
DATA
TESTA
IOUT
GOLD_VSS
COL

3

1

C358
1200pF

36
35
34
33
32
31
30
29
28
27
26
25

C340
1uF

VAG_REF

LVZIF TOP SHEILD LVZIF BTM SHEILD

C4M
C3M
C2M
C1M
VAG
LIM
ROSE_VCC
ROSE_VSS
DEMOD_HF
DEMOD_OUT
PHASE_LOCK

CRYSTAL FILTER SHIELD

C341
1uF

1

RED_VCC
RED_VSS
PRE_IN
RSSI_OUT
RSSI_FLT
EXTBS
AFC
TESTD
VPP
GOLD_VCC
EMIT
BASE

1

C383
100pF

C357
0.22uF

1
2
3
4
5
6
7
8
9
10
11
12

1

R355
0

L325
2.2uH
CR310

R322
200K

L332
100nH

Circuit Board/Schematic Diagrams and Parts List

5B-23

U210
TC7SET04FU
1
NC
GND

2

C258
.01uF

C265
NU

VCC

C257
100pF

5

2

U247
ADP3300 1
5V
(SOURCE)

CR201

C230
100pF

C229
1000pF

4
A3
5
A2
6
A1

3
K3
2
K2
1
K1

C228
4.7uF

C291
0.47uF

L202
2.2uH
C292
0.1uF

ERR
6 OUT
4 NR
2

SWB+

SD
IN 3
5
C294
100pF

C293
0.47uF

C223
0.1uF

C219
0.22uF

2

C235
2.2uF

4V_3.3V

U248
LP2980 3 1

L203
2.2uH

C277
100pF

NC ON_OFF*
VOUT
VIN

C259
.01uF

GND

3

4

U211
C296 TC7SET04FU
0.1uF
1
4
NC
5
3
GND
VCC

C278
2.2uF

GND

Vdda

C298
0.1uF

4 5
L201
2.2uH
C217
2.2uF

C218
0.1uF

C279
2.2uF

C220
100pF

PD_VDD
PRE_VDD
AVDD
DVDD
VRO
VCP

5
34
20
36
13
47

C224
0.1uF

XTAL1 23
XTAL2 24

8
9

CLK
CSX

10 MODIN
7 DATA
30 SFIN

MODIN
DATA

C214
100pF

C211
100pF

R201
82K

35 PVREF
21 VBPASS

R202
100K

40
BIAS1
39 BIAS2

PRESC
C263
0.75pF

18 REFSEL
42
CCOMP

C204
2.2uF

17 NC1
29 NC2
31 NC3

15
14
12
11

AUX1
AUX2
AUX3
AUX4

48
1
2
3

IOUT
IADAPT
LOCK
ADAPTSW
SFOUT
INDMULT
WARP

43
45
4
46
28
16
25

Q210

C202
1000pF

SYNTHESIZER TOP SHIELD

C234
0.47uF

C232
.047uF

AUX4

3

4

R5
C231
0.1uF

R232
620
R233
560

5V

VCTRL
LOCK
TP201
1

L232
12uH

C213
100pF
R204
47K

C238
470pF

FL201
45J49 3

C203
4.7uF

1

IN

GND

OUT

2

CR203

C208
1.6pF

SH202
SHIELD
R281
NU

1

R231
120

2

C260
100pF

AUX3

C207
56pF
SH201
SHIELD

R256
30

TP202
1

1

VSF
C201
100pF

C233
0.1uF

R255
4.3K

16.8MHz

TEST1 37
TEST2 38

26 SFCAP
27 SFBASE
32 PREIN

C264
100pF

L261
39nH

U201
63A27

VMULT1
VMULT2
VMULT3
VMULT4

DGND
AGND
PRE_GND
PD_GND

C212
100pF

FREFOUT 19
41
MODOUT

6
22
33
44

C210
100pF

CLK
CEX

C206
330pF

1

SYNTHESIZER BOTTOM SHIELD

UHF Synthesizer Schematic Diagram

5B-24

Circuit Board/Schematic Diagrams and Parts List

VSF
C281
100pF

R245
240

C276
2.2uF

L243
RESONATOR

C272
NU

R241
18

C242
7.5pF

2

C273
0.1uF

L271
68nH

10
8

TX_INJ

12

PRESC
C271
NU

7
13

Rx_sw
Tx_sw

TX_OUT

VCC_LOGIC

18 14

RX_INJ

RX_OUT

R244
12K

TX_IADJ
RX_IADJ
SUPER_FLTR

PRESC_OUT
RX_SWITCH

U241
50U54

COLL_RFIN
RX_BASE
RX_EMITTER

TX_SWITCH

TX_BASE
FLIP_IN
GND_FLAG

GND_BUFFERS

GND_LOGIC

TX_EMITTER
TRB_IN

1
2
3
4
5
6
16
15
20
19

C243
7.5pF

1

L242
220nH

C245
2.4pF
CR243

Q241 2
BFQ67W

3

CR242

C244
2pF

R243
10K

L241
390nH

Rx_sw

1

VCTRL

L282
390nH
CR241

VSF

R253
7.5K

C247
100pF

Tx_sw

C248
0.1uF

1

SH242
SHIELD
R254
7.5K
C289
100pF

1

VCO TOP SHIELD

4

VCO BOTTOM SHIELD

2

3

5V

4

R260
1K

1

AUX4
R252
330

L253
RESONATOR

R251
18

2
P2

2
P3
3

AUX3
C297
.01uF

1

UHF Voltage Controlled Oscillator Schematic Diagram

L251
33nH

3
C255
100pF

Q260

C252
10pF

C254
3.6pF

Q261

P1
1

1

C241
100pF
3

R248
30

17 11 9
SH241
SHIELD

C250
7.5pF

3

C246
100pF

L273
33nH

VCC_BUFFERS

L281
390nH

R242
200

C285
100pF

C286
0.1uF

C253
1.5pF

CR251

C251
100pF

2

Circuit Board/Schematic Diagrams and Parts List

5B-25

E101
BEAD

R102
0.1

UNSWB+

L107
33.47nH

C123
10uF
C108
100pF

C114
100pF

C172
0.1uF

L105
390nH
C109
100pF

L106
7.66nH

Microstrip

Microstrip
1

C111
13pF

C112
47pF

C113
10pF

R172
200
Microstrip

Q110
2

CR101

UNSWB+
R106
10

L102
19.61nH

J101
RF_JACK

C102
6.2pF

C103
10pF

3

R103
43

C115
15pF

2

1

C104
6.2pF

C106
4.7pF

C107
3.3pF

2

1

L112
390nH

C116
33pF

C130
100pF

L160
15.0nH

C120
10pF

C117
30pF

R108
NU

RX_IN
TX_INJ
C151
100pF

R107
NU

C152
.022uF

C150
.022uF

6

ANTENNA_NUT

R112
300

C161
0.1uF

C125
100pF

5

UNSWB+

R104
2K

DATA
L113
5.6nH

C140
NU
R120
0

C119
100pF

POS

C127
1000pF

C129
7.5pF

R171
NU

6

C131
.022uF

1

C122
100pF

C174
100pF

R133
NU

UNSWB+
C166
100pF

C132
100pF

2

CSX
L114
390nH

3

R132
470K
32
31
30
29
28
27
26
25

R173
1MEG

C165
100pF

C169
3.9pF

P100
C171
100pF

4
C105
100pF

R109
200K
C133
1000pF
C134
3300pF

C135
.022uF

RFIN
T1
CI
INT
CJ
VL
CL
GND1

VAR3
RX
NA
RS
VAR1
VLIM
VAR2
V5EXT

U102
H99S

24
23
22
21
20
19
18
17

RESET
C110
100pF

5V

9
10
11
12
13
14
15
16

L115
390nH

1
2
3
4
5
6
7
8

C138
100pF

C170
100pF
C126
0.1uF
1

SH100
SHIELD

POS

1

Q111

ANO
RSET
TEMP
CEX
DATA
BPOS
CLK
GND2

H101
HEATSINK

UNSWB+
CLK

4

F168
QX
Q
CQ
CQX
V10
VG
V45

TAB1

TAB5
4
TAB4
3
TAB3

GND4
13
GND3
GND2 12
5
GND1
NC4

R110
300

G2

R101
240

J102

U101
09Z67

8
NC1
9
NC2
10
NC3
15

C141
NU

16 RFIN
1
VCNTRL
14 VD1
11

L116
9.75nH

R161
200

R111
20

C175
20pF

RFOUT1
7
RFOUT2
2
VG1
3
VG2

C295
100pF
R170
240

3

2
TAB2
1

C128
.022uF

3

2

GND

C160
100pF

L104
19.61nH

1
4

C121
100pF

C118
100pF

CR102
C101
100pF

L109
11.03nH

R175
6.2

R176
6.2
L101
19.61nH

L108
4.22nH

SH101
SHIELD

VOUT
1

HF SHIELD

1

PA SHIELD

GND

3

CR105
LM50
R130
10K
2

C173
.022uF

R131
10K

UHF Transmitter Schematic Diagram

5B-26

Circuit Board/Schematic Diagrams and Parts List

UHF Band 1 Radio Parts List (RF
Board)
Circuit
Ref

Motorola
Part No.

B501
B503

0986237A02
3980502Z01

B504

3980501Z01

C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C123
C125
C126
C127
C128
C129
C130
C131
C132
C133
C134
C135
C138
C140
C141
C150
C151
C152
C160
C161

2113740F51
2113740F22
2113740F27
2113740F22
2113743N50
2113740F19
2113740F15
2113743N50
2113740F51
2113743N50
2113740F31
2180605Z32
2180605Z16
2113743N50
2113743N35
2113743N35
2113743N34
2113743N50
2113743N50
2113743N27
2113743N50
2113743N50
2311049A18
2113743N50
2113743M24
2113743L17
2113743M08
2113743N23
2113743N50
2113743M08
2113743N50
2113743L17
2113743L29
2113743M08
2113743N50
0662057A67
NOT PLACED
2113743M08
2113743N50
2113743M08
2113743N50
2113743M24

Description
Battery Contact Connector
Contact, Backup B+
(not used in GP328 Plus)
Contact, Backup B(not used in GP338 Plus)
100
6.2
10.0
6.2
100.0 pF, 5%
4.7 pF
3.3
100.0 pF, 5%
100
100.0 pF, 5%
15 pF
47 pF
10 pF
100.0 pF, 5%
24 pF, 5%
24 pF, 5%
22.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
11.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
10 uF, 10%
100.0 pF, 5%
100000 pF, +80% / -20%
1000 pF, 10%
22000 pF, +80% / -20%
7.5 pF, 0.5 pF
100.0 pF, 5%
22000 pF, +80% / -20%
100.0 pF, 5%
1000 pF, 10%
3300 pF, 10%
22000 pF, +80% / -20%
100.0 pF, 5%
5600, 5%
22000 pF, +80% / -20%
100.0 pF, 5%
22000 pF, +80% / -20%
100.0 pF, 5%
100000 pF, +80% / -20%

Circuit
Ref
C165
C166
C169
C170
C171
C172
C173
C174
C175
C201
C202
C203
C204
C206
C207
C208
C210
C211
C212
C213
C214
C217
C218
C219
C220
C223
C224
C228
C229
C230
C231
C232
C233
C234
C235
C238
C241
C242
C243
C244
C245
C246
C247
C248
C250
C251
C252
C253
C254
C255
C257

Motorola
Part No.
2113743N50
2113743N50
2113743N20
2113743N50
2113743N50
2113740F51
2113743M08
2113743N50
2113740F51
2113743N50
2113743L17
2311049A56
2104993J02
2113740F63
2113743N40
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2104993J02
2113743M24
2113743K16
2113743N50
2113743M24
2113743M24
2311049J11
2113743L17
2113743N50
2113743M24
2113743E12
2311049A01
2311049A05
2104993J02
2113741F17
2113743N50
2113743N23
2113743N23
2113740F10
2113743N11
2113743N50
2113743N50
2113743M24
2113743N23
2113743N50
2113743N26
2113740F09
2113743N15
2113743N50
2113743N50

Description
100.0 pF, 5%
100.0 pF, 5%
5.6 pF, 0.5 pF
100.0 pF, 5%
100.0 pF, 5%
100
22000 pF, +80% / -20%
100.0 pF, 5%
100
100.0 pF, 5%
1000 pF, 10%
4.7 uF
2.2 uF
330 , 5%
39.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
2.2 uF
100000 pF, +80% / -20%
0.220 uF, +80% / -20%
100.0 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
4.7 uF, 10%
1000 pF, 10%
100.0 pF, 5%
100000 pF, +80% / -20%
0.047 uF, 10%
0.1
0.47 uF, 10%
2.2 uF
470
100.0 pF, 5%
7.5 pF, 0.5 pF
7.5 pF, 0.5 pF
2.0
2.4 pF, 0.25 pF
100.0 pF, 5%
100.0 pF, 5%
100000 pF, +80% / -20%
7.5 pF, 0.5 pF
100.0 pF, 5%
10.0 pF, 5%
1.8
3.6 pF, 0.25 pF
100.0 pF, 5%
100.0 pF, 5%

Circuit
Ref
C258
C259
C260
C263
C264
C265
C271
C272
C273
C276
C277
C278
C279
C281
C285
C286
C289
C291
C292
C293
C294
C295
C296
C297
C298
C301
C302
C303
C304
C305
C306
C307
C308
C309
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C320
C321
C322
C323
C324
C325
C326

Motorola
Part No.
2113743L41
2113743L41
2113743N50
2113743N02
2113743N50
NOT PLACED
NOT PLACED
NOT PLACED
2113743M24
2104993J02
2113743N50
2311049A09
2104993J02
2113743N50
2113743N50
2113743M24
2113743N50
2311049A69
2113743M24
2113743A27
2113743N50
2113743N50
2113743M24
2113743L41
2113743M24
2113743N15
2113743N26
2113740L08
2113743N26
2113743N33
NOT PLACED
2113743M24
2113743N50
2113743N50
2113743M24
NOT PLACED
2113743N25
2113743N26
2113743M24
2113743N50
2113740L08
2113743N25
2113743N23
2113743N69
2113743N23
2113743N50
2113743N48
2113743N54
2113743N33
2113743L41
2113743L41

Description
10000 pF, 10%
10000 pF, 10%
100.0 pF, 5%
0.75 pF, 0.25 pF
100.0 pF, 5%

100000 pF, +80% / -20%
2.2 uF
100.0 pF, 5%
2.2 uF, 10%
2.2 uF
100.0 pF, 5%
100.0 pF, 5%
100000 pF, +80% / -20%
100.0 pF, 5%
10.0 uF, 20%
100000 pF, +80% / -20%
0.470 uF, 10%
100.0 pF, 5%
100.0 pF, 5%
100000 pF, +80% / -20%
10000 pF, 10%
100000 pF, +80% / -20%
3.6 pF, 0.25 pF
10.0 pF, 5%
3.9 pF, 0.1 pF
10.0 pF, 5%
20.0 pF, 5%
100000 pF, +80% / -20%
100.0 pF, 5%
100.0 pF, 5%
100000 pF, +80% / -20%
9.1 pF, 0.5 pF
10.0 pF, 5%
100000 pF, +80% / -20%
100.0 pF, 5%
3.9 pF, 0.1 pF
9.1 pF, 0.5 pF
7.5 pF, 0.5 pF
1.8 pF, 0.25 pF
7.5 pF, 0.5 pF
100.0 pF, 5%
82.0 pF, 5%
150.0 pF, 5%
20.0 pF, 5%
10000 pF, 10%
10000 pF, 10%

Circuit
Ref
C327
C328
C329
C330
C331
C333
C334
C336
C337
C338
C339
C340
C341
C342
C343
C344
C345
C346
C347
C348
C349
C350
C351
C352
C353
C354
C355
C356
C357
C358
C359
C360
C361
C362
C363
C364
C370
C371
C372
C373
C374
C375
C378
C380
C381
C382
C383
C384
C385
C386
C390

Motorola
Part No.
2113743N50
2113743M24
2113743M24
2113743N26
2113743N50
NOT PLACED
2113743M08
2113743M24
2113743N50
2113743N30
2180478Z20
2180478Z20
2180478Z20
2180478Z20
2113743A23
2113743M24
2113743M24
2113743M24
2113743M24
2113743M24
2113743E07
2113743L05
2113743N33
2113743N28
2113743N41
2113743N42
2113743A24
2113743M08
2113743A23
2113741A23
2109720D14
2113743E07
2113741F49
2113743M08
2311049A40
2113743L41
2113743N50
NOT PLACED
NOT PLACED
NOT PLACED
2113743N50
2113743N50
NOT PLACED
2113743L41
2113743N21
2311049A59
2113743N50
2113743N44
2113743N44
2113743N50
2113743N50

Description
100.0 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 pF, 5%
100.0 pF, 5%
22000 pF, +80% / -20%
100000 pF, +80% / -20%
100.0 pF, 5%
15.0 pF, 5%
1.0 uF
1.0 uF
1.0 uF
1.0 uF
0.220 uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.022 uF
330 pF, 10%
20.0 pF, 5%
12.0 pF, 5%
43.0 pF, 5%
47.0 pF, 5%
0.330 uF, 10%
22000 pF, +80% / -20%
0.220 uF, 10%
1200 pF, 5%
0.1 uF
0.022 uF
10000
22000 pF, +80% / -20%
2.2 uF, 10%
10000 pF, 10%
100.0 pF, 5%

100.0 pF, 5%
100.0 pF, 5%
10000 pF, 10%
6.2 pF, 0.5 pF
10 uF, 10%
100.0 pF, 5%
56.0 pF, 5%
56.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%

Circuit Board/Schematic Diagrams and Parts List

Circuit
Ref
C391
C395
C396
C397
C502
C503
C505
C511
C512
C513
C514
C520
C521
C522
C523
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C541
C542
C543
C544
C545
C546
C547
C548
C549
C550
C551
C552
C553
C554
C555
CR101
CR102
CR103
CR105
CR160

Motorola
Part No.
NOT PLACED
2113743N50
NOT PLACED
2311049A05
2311049A05
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743L41
NOT PLACED
2113743L41
2113743L41
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743L41
2113743N50
4880973Z02
4802245J41
4802245J41
5185963A15
NOT PLACED

Description
100.0 pF, 5%
0.47 uF, 10%
0.47 uF, 10%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
10000 pF, 10%
10000 pF, 10%
10000 pF, 10%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%

100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
100.0 pF, 5%
10000 pF, 10%
100.0 pF, 5%
PIN Diode
PIN Diode
PIN Diode
Temperature Sensor

5B-27

Circuit
Ref

Motorola
Part No.

CR201
CR203
CR241
CR242
CR243
CR251
CR301
CR302
CR303
CR304
CR305
CR306
CR308
CR310
CR501
CR503
E101
F501
FL201
FL301
H101
J101
J102

4802233J09
4862824C03
4805649Q13
4862824C01
4862824C01
4802245J22
4862824C01
4862824C01
4880154K03
4862824C01
4862824C01
4802245J42
4802245J41
4862824C01
4880107R01
4805729G49
2484657R01
6580542Z01
**4805875Z04
9186153B01
2680499Z01
0985613Z01
0280519Z02

J200
L101
L102
L104
L105
L106
L107
L108
L109
L112
L113
L114
L115
L116
L160
L201
L202
L203
L232
L241
L242
L243
L251
L253
L261
L271
L273

0905505Y04
2479990B02
2479990B02
2479990B02
2462587N22
2479990A02
2479990G01
2479990A01
2479990B01
2462587N45
2413926H09
2462587N45
2462587N22
2479990A03
2413926H14
2462587Q20
2462587Q20
2462587Q20
2462587P25
2462587V41
2462587V38
2460593C01
2462587V28
2460593C02
2462587V29
2462587V32
2462587V28

Description
Triple Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Dual Diode
Varactor Diode
Varactor Diode
Ring Quad Diode
PIN Diode
Varactor Diode
Rectifier
Red / Yellow Diode
Inductor Bead Chip
Fuse 3A
Crystal 16.8 MHz
X’tal Filter
Heat Spreader
RF Jack
Antenna Nut
(Ref: 0280519Z04)
Conn ZIF Horizontal
19.61 nH
19.61 nH
19.61 nH
390 nH, 10%
7.66 nH
33.47 nH
4.22 nH
11.03 nH
22 nH, 5%
5.6 nH, 0.3 nH
22 nH, 5%
390 nH, 10%
9.75 nH
15.0 nH, 5%
2200 nH, 20%
2200 nH, 20%
2200 nH, 20%
12000 nH, 5%
390 nH, 10%
220 nH, 5%
Teflon Resonator
33 nH, 5%
Teflon Resonator
39 nH, 5%
68 nH, 5%
33 nH, 5%

Circuit
Ref
L281
L282
L301
L302
L303
L304
L305
L306
L307
L309
L310
L311
L314
L321
L325
L330
L331
L332
L340
L505
P100
PB501
PB502
PB504
PB505
Q110
Q111
Q210
Q241
Q260
Q261
Q301
Q302
Q310
Q315
Q316
Q320
Q502
Q505
R101
R102
R103
R104
R106
R107
R108
R109
R110
R111
R112
R120

Motorola
Part No.
2462587V41
2462587V41
2479990C01
2479990C01
2462587V26
2462587V37
2462587V26
2479990C01
2479990C01
2479990C02
2462587V36
2462587N65
2462587N72
NOT PLACED
2480646Z20
2462587N64
2480646Z20
2462587N53
2462587V41
2462587Q42
3905643V01
4070354A01
4070354A01
4070354A01
4070354A01
4813828A09
4809939C05
4809939C05
4805218N63
4809939C05
4809939C05
4802245J44
4802245J44
NOT PLACED
4880214G02
NOT PLACED
4805218N63
5180159R01
4880214G02
0662057A34
0680539Z01
0662057M41
0662057N15
0662057M26
NOT PLACED
0662057M92
0662057N30
0662057M61
0662057M33
0662057M61
0662057N14

Description
390 nH, 10%
390 nH, 10%
13.9 nH
13.9 nH
22 nH, 5%
180 nH, 5%
22 nH, 5%
13.9 nH
13.9 nH
16.28 nH
150 nH, 5%
750 nH, 5%
2200 nH, 5%
2.20 uH
680 nH, 5%
2.20 uH
100 nH, 5%
390 nH, 10%
390 nH, 10%
Ground Contact
Light Touch Switch
Light Touch Switch
Light Touch Switch
Light Touch Switch
Transistor 8W 450MHz
Transistor Dual NPN / PNP
Transistor Dual NPN / PNP
RF Transistor BFQ67W
Transistor Dual NPN / PNP
Transistor Dual NPN / PNP
NPN Silicon Bipolar Transistor
NPN Silicon Bipolar Transistor
Transistor MMBT3904
RF Transistor BFQ67W
Dual Transistor NPN
Transistor MMBT3904
240, 5%
Power Metal Strip Resistor
43, 5%
47 k, 5%
10, 5%
5600, 5%
200 k, 5%
300, 5%
20, 5%
300, 5%
43 k, 5%

Circuit
Ref
R130
R131
R132
R133
R136
R161
R170
R171
R172
R173
R174
R175
R176
R201
R202
R204
R231
R232
R233
R241
R242
R243
R244
R245
R248
R251
R252
R253
R254
R255
R256
R260
R281
R300
R301
R302
R303
R304
R305
R306
R307
R308
R309
R310
R311
R312
R313
R314
R315
R316
R317

Motorola
Part No.
0662057M98
0662057N05
0662057N33
NOT PLACED
NOT PLACED
0662057M57
0662057A34
0662057N14
0662057A32
0662057N29
0662057N15
0662057B59
0662057B59
0662057N21
0662057N23
0662057N15
0662057M52
0662057M69
0662057M68
0662057M32
0662057M57
0662057M98
0662057N01
0662057M59
0662057M37
0662057M32
0662057M62
0662057M95
0662057M95
0662057M89
0662057M37
0662057M74
NOT PLACED
0662057M82
0662057N23
0662057N23
0662057M74
0662057N01
0662057M67
0662057N23
0662057N23
0662057M60
0662057M32
0662057M60
0662057N10
0662057M83
0662057M62
0662057M85
0662057N01
0662057A96
0662057M74

Description
10 k, 5%
18 k, 5%
270 k, 5%
200, 5%
240, 5%
43 k, 5%
200, 5%
180 k, 5%
47 k, 5%
3.0, 5%
3.0, 5%
82 k, 5%
100 k, 5%
47 k, 5%
120, 5%
620, 5%
560, 5%
18, 5%
200, 5%
10 k, 5%
12 k, 5%
240, 5%
30, 5%
18, 5%
330, 5%
7500, 5%
7500, 5%
4300, 5%
30, 5%
1000, 5%
2200, 5%
100 k, 5%
100 k, 5%
1000, 5%
12 k, 5%
510, 5%
100 k, 5%
100 k, 5%
270, 5%
18, 5%
270, 5%
30 k, 5%
2400, 5%
330, 5%
3000, 5%
12 k, 5%
91 k, 5%
1000, 5%

5B-28

Circuit
Ref

Circuit Board/Schematic Diagrams and Parts List

Motorola
Part No.

Description

R318
R319
R320
R321
R322
R324
R325
R326
R327
R328
R329
R330
R331
R332
R333
R334
R335
R336
R338
R339
R340
R342
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R355
R501
R502
R505
R506
R507
R509

0662057A79
0662057A29
0662057M74
0662057M83
0662057N30
0662057M81
0662057M94
NOT PLACED
0662057N11
0662057M12
0662057M01
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
0662057M01
0662057M94
0662057N23
0662057M26
0662057N01
0662057M98
0662057N17
0662057M74
0662057M87
0662057C01
0662057N23
0662057C01
0662057M86
0662057M01
0662057M70
0662057M56
0662057M98
0662057N15
0662057M01
0662057M01

R510
R511
RT300
RT301
S501

0662057M01
NOT PLACED
0680590Z01 Thermistor 33k
NOT PLACED
4080710Z01 Channel Switch
(Ref: 4080710Z09)
4080710Z05 Channel Switch (used in
PMUE2048_ only)
(Ref: 4080710Z12)
1880619Z02 Potentiometer (Volume)
2680507Z01 Shield, Harmonic Filter

S502
SH100

18 k, 5%
150, 5%
1000, 5%
2400, 5%
200 k, 5%
2000, 5%
6800, 5%
33 k, 5%
2.7, 5%
0, 5%

0, 5%
6800, 5%
100 k, 5%
10, 5%
12 k, 5%
10 k, 5%
56 k, 5%
1000, 5%
3600, 5%
0
100 k, 5%
0
3300, 5%
0, 5%
680, 5%
180, 5%
10 k, 5%
47 k, 5%
0, 5%
0, 5%
(not used in GP328 Plus)
0, 5%

Circuit
Ref

Motorola
Part No.

SH101
SH201
SH202
SH241
SH242
SH301

2680510Z01
2680511Z01
2680511Z01
2604120G01
2680514Z01
2680554Z01

SH302

2680555Z01

SH303
SH304
SH321
SH322
SH323
T301
T302
TP201
TP202
TP302
U101
U102
U201
U210
U211
U241
U247
U248
U301
VR300
VR439
VR440
VR441
VR443
VR444
VR501
VR506

Description
Shield, PA
Shield, Synthesizer
Shield, Synthesizer
Shield, VCO
Shield, VCO Bottom / LVZIF
Shield, Receiver Front End
Top
Shield, Receiver Front End
Bottom
Shield, Mixer
Shield, Mixer Diode
Shield, LVZIF 2nd LO
Shield, VCO Bottom / LVZIF
Shield, X’tal Filter
Balun Transformer
Balun Transformer

2680509Z01
2680624Z01
2680508Z01
2680514Z01
2604082P01
2580541Z02
2580541Z02
NOT PLACED
NOT PLACED
NOT PLACED
5185130C65 LDMOS Driver
5185765B26 PCIC
5185963A27 LVFRACN
5102463J61
Inverter
5102463J61
Inverter
5105750U54 VCO Buffer
5105739X05 5V Regulator
5102463J58
3.3V Regulator
5109632D83 LVZIF
NOT PLACED
4880140L17
12V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4813830A18 6.8V Diode
4802245J73
6.8V Zener Diode
8404077G05 RF PCB
8404077G06 RF PCB
8404077G07 RF PCB
8404077G09 RF PCB
* Motorola Depot Servicing only
** Not Serviceable

Troubleshooting charts

9.0

5B-29

Troubleshooting charts
MCU Check

PTT
Press PTT. Red
LED does not
light up

INT
AUDIO
J403 Audio
at Pin 2 &
Pin 3

Audio at
AudioPA
(U420)
input
(U447)

NO

YES

Check
Audio PA
(U420)

YES

PTT U409 Pin NO
53
low?
YES

NO
Audio from Pin 41
ASFIC, U404?

Check Spk. Flex
Connection

Power Up
Alert Tone
OK?

Check
PB504

Press PTT
Q502-2 High?

NO

NO

Speaker
OK?

NO

Audio at
Pin 2
U404?

YES

U409 EXTAL=
7.3728 MHz?

Check
Q502-2
voltage

Check ASFIC
U404

YES
Read Radio OK?

LED should
light up

YES

Radio could
not PTT
externally

LED
Q502,R501
OK?

U201 Pin 19
16.8 MHz

NO

Check
Setup

YES

NO

YES
EXT
PTT

NO Replace Speaker

YES

No
Check U301
LV ZIF

Before replacing
MCU, check SPI
clock, SPI data, and
RF IC select

YES Not able to program RF Board
ICs

NO

Reprogram the
correct data.

See FGU
Troubleshooting

No
Replace
Faulty
Component
J403 OPT_SEL_1
& OPT_SEL_2 NO
Pin 8 & 9
low?

EXT
SPKR

YES
J403 Pin 9 low?
Pin 8 high?

NO
Check
Accessories

YES

ASFIC U404 Pin
14 & 15 high?

NO

5V at U247?
3.3V at U248?

Check
Accessories

YES
U409
Pin 52, 6
low?
NO

Check
U404

YES

Check
MCU

See FGU
Troubleshooting
chart

NO

YES

YES

U409 Reset Pin
94 High?

7.5V at
Pin 3/5 U247? 4/ NO
3.3V at Pin 1
U248

NO

Check
Q400

Replace U247/
U248

Check any short to
SWB+,
Vdda or Vddd

YES
MCU is OK

YES
Check
U420 Audio PA

Troubleshooting Flow Chart for Controller

5B-30

Troubleshooting charts

START
Bad SINAD
Bad 20dB Quieting
No Recovered Audio

Audio at pin 27 Yes
of U301?

Check Controller

No
Spray of inject 1st IF into
XTAL Filter
IF Freq: 45.1MHz

Yes
B

A

Check Q320 bias circuitry for faults.

Audio heard?

Rotate Freq. Knob

No
Check 2nd LO Control
Voltage at C363

No

Activity on
U301 sel pin?

Yes
B

VCO locked?

Check controller.

Yes

No

Check FGU

No

16.8 MHz
check at pin 22
U301?

Before replacing U301, check 2nd VCO
Q320. Check VCO O/P level, C351,
C352.

Yes
A

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Troubleshooting charts

5B-31

B

Inject RF into J101

Trace IF signal
from L311 to
Q302. Check for
bad XTAL filter.

Yes

IF Signal at
L311?

Q302 collector
OK?
IF signal
present?

No
Yes
RF Signal at
T301?
No

1st LO O/P
OK?
Locked?
Yes

Yes
RF Signal at
C310?

No

No
Check FGU

Yes
Before replacing
U301, check
U301 voltages;
trace IF signal
path.

Check T301, T302,
CR306, R308, R309,
R310

Check filter between
C310 & T301.

Check for 2.6
VDC

Yes

A

No
Yes
RF Signal at
C307?

No
Check RF amp (Q301)
Stage.
Is R5 present?

No or
weak RF

Check filter between C301
Yes & C307; program filter to
schematic test freq and
RF Signal at
check
varactor voltages.
C301?

A

No
Check Q210, U201
(pin 48) voltages and
U247

No
Check harmonic filters L101 & L102 and ant.
switches CR101, CR102, L104

Yes

Are varactor
voltages OK?

Yes

Check varactor filter.

No
Check U404 voltage. U404
can be selected by MCU
before replacing U404.

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)

5B-32

Troubleshooting charts

START

No Power

Is There B+
Bias for Ant
switch

Yes

Yes

No

No
Check Q111

Is Control Voltage
High or Low

Is Current
OK?

Low
Check PCIC

High
Check Drive to
Module
1. Check Pin Diodes
2. Check Harmonic Filter
Is Drive
OK?
Inspect/Repair Tx. Output Network

Yes
Inspect PA Network/Check
Power Out of U101 at Cap
C160

No
Is Power
OK?
Yes

Is Power
OK?

Yes
Done

No
Done
Replace U101

Is Power
OK?

Yes
Done

No
Replace Q101

Troubleshooting Flow Chart for Transmitter

No
Troubleshoot
VCO

Troubleshooting charts

5B-33

3.3V at U201
pins 5, 20, 34 &
36

Start

Check CR201, U210,
U211, C258, C259 &
C228

Check U248,
L201 & L202

YES

Visual
check of the
Board OK?

NO

Correct
Problem

NO

YES
YES
5V
NO
at pin 6 of
CR201

Is U201 Pin 47
AT = 13 VDC

NO

NO
YES

Check
L202

Check Q260,
Q261 & R260

YES

Are signals
at Pin’s 14 &
15 of U201?

Is
16.8MHz
signal at
U201 pin
23?

NO

YES

Replace
U201

NO

Check 5V
Regulator

NO

Is U241 Pin 19
<0.7 VDC in RX &
>4.3 VDC in TX?

+5V at U201
Pin’s
13 & 30?

YES

Is 16.8MHz
Signal at
U201 Pin 19?

Check FL201, C206,
C207, C208, CR203 &
R204

NO
Are Waveforms
at Pins 14 & 15
triangular?

NO

YES
YES

YES
U201 pin 2 at
>3V in Tx and
<0.7V in Rx

Is U201 Pin 18
AT 4.54 VDC?

YES
NO

NO

NO

Replace U201

NO

Is there a short
between Pin 47 and
Pins 14 & 15 of
U201?

Check programming
lines between U409
and U201 Pins 7,8 & 9

YES
YES

NO

Remove
Shorts
Check uP U409
Troubleshooting
Chart

Is RF level at
U201 Pin 32
>-30 dBm?

If L261, C263 & C264
are OK, then see VCO
troubleshooting chart

NO

Do Pins 7,8 & 9
of U201 toggle
when channel is
changed?

YES

Is information
from µP U409
correct?

YES

Replace U201

YES

Are R231,R232,
R233,C231,C232,
& C233 OK?

NO

Replace or
resolder
necessary
components

YES
Replace U201

Troubleshooting Flow Chart for Synthesizer

5B-34

Troubleshooting charts

START
Change
U241

No

L253 O/C?

Yes

Yes
No LO?

Change
L253
No

Yes
No

Yes

Pin 10
>1V?

A

No

TRB = 5V?

Tx Carrier?
Yes

No

VCO OK

Check R245 for dry
joint or faulty
AUX 3
High?

Check
R260

No
Check U201
Pin 2 for 3.2V

Change
L243

A

Yes

Pin 19 =0V

Yes

V ctrl 0V
or 13V?

Yes

No
No
AUX 4
High?

Check for faulty parts or dry
joints of L271, L273, C370,
C386, R339 & L320
No

Yes
Change
Q261

Troubleshooting Flow Chart for VCO

Change
U201

L243 Open
Circuit?

No
Change
U241

5C-1

Section 5C
MODEL CHART AND TEST SPECIFICATIONS (450-527
MHZ)
1.0

Model Chart

GP Series, UHF Band 2, 450-527 MHz
Model

Description

AZH38SDC9AA2

GP328 Plus 450-527 MHz 4W 4 CH

AZH38SDC9AA3

GP328 Plus 450-527 MHz 4W 16 CH

AZH38SDH9AA6

GP338 Plus 450-527 MHz 4W 128 CH

AZH38SDH9DU6

Item
X

GP338 XLS 450-527 MHz 4W 160 CH

Description

PMUE2049_

GP328 Plus Super Tanapa 450-527 MHz 4W 4CH

PMUE1701_

GP328 Plus Super Tanapa 450-527 MHz 4W 16CH

PMUE1702_

GP338 Plus Super Tanapa 450-527 MHz 4W 128CH

PMUE1877_

GP338 XLS Super Tanapa 450-527 MHz 4W 160CH

PMUE2051_

GP328 Plus Tanapa 450-527 MHz 4W 4CH

PMUE1705_

GP328 Plus Tanapa 450-527 MHz 4W 16CH

PMUE1706_

GP338 Plus Tanapa 450-527 MHz 4W 128CH

PMUE1879_

GP338 XLS Tanapa 450-527 MHz 4W 160CH

PMHE4027_

GP328 Plus B/C Kit 450-527 MHz 4W 4CH

PMHE4004_

GP328 Plus B/C Kit 450-527 MHz 4W 16CH

PMHE4011_

GP338 Plus B/C Kit 450-527 MHz 4W 128CH

PMHE4021_

GP338 XLS B/C Kit 450-527 MHz 4W 160CH

PMHE4025_

GP328 Plus Front Housing Kit 4CH

PMHE4002_

GP328 Plus Front Housing Kit 16CH

PMHE4003_

GP338 Plus Front Housing Kit 128CH

X

PMHE4019_

GP338 XLS Front Housing Kit 160CH

X
X
X
X
X
X
X
X
X
X
X
X
X
X
X

X

X

X

NAE6483_

Monopole (Whip) antenna (403-520 MHz)

X

X

X

X

PMAE4008_

Monopole (Whip) antenna (470-530 MHz)

X

X

X

X

PMAE4006_

UHF 9 cm antenna (465-495 MHz)

X

X

X

X

PMAE4007_

UHF 9 cm antenna (490-527 MHz)

X

X

6804022G48

GP328 Plus User Guide

6804112J64

GP338 Plus User Guide

6804114J01

GP338 XLS User Guide

X
X

x = Indicates one of each is required.

5C-2

2.0

Specifications (for GP328 Plus)

Specifications (for GP328
Plus)
General
UHF

Transmitter
UHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

450-527 MHz

Frequency

450-527 MHz

Channel Capacity:

GP328 Plus : 4/16 Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz
+1, -3 dB

101.5mm x 55.5mm x
35.5mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

<5%

250 g

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

7.5 Volts ±20%
101.5mm x 55.5mm x
30.5mm

270 g

Receiver

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low
Power

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

UHF
12.5kHz

UHF 20/
25kHz

Frequency:

450527MHz

450527MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:

Meets MIL-STD-810C,D & E and TIA/EIA 603

FCC ID

AZ489FT4845

All specifications are subject to change without notice.

Specifications (for GP338 Plus/GP338 XLS)

3.0

5C-3

Specifications (for GP338
Plus/GP338 XLS)
General
UHF

Transmitter
UHF
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

450-527 MHz

Frequency

450-527 MHz

Channel Capacity:

GP338 Plus 128 Channels/GP338 XLS 160
Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

7.5 Volts ±20%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz

101.5mm x 55.5mm x
33.0mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

+1, -3 dB

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.

<5%

FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

101.5mm x 55.5mm x
38.0mm

265 g

Receiver

285 g

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low
Power

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:
FCC ID

Meets MIL-STD-810C,D & E and TIA/EIA 603
AZ489FT4845

UHF
12.5kHz

UHF 20/
25kHz

Frequency:

450527MHz

450527MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

All specifications are subject to change without notice.

5C-4

4.0

Transmitter

Transmitter

PCIC

From VCO

Antenna
Jack

Vcontrol

Vcontrol

PA
Driver

PA-Final
Stage

Antenna Switch/
Harmonic Filter/
Matching Network

Figure 5-1: Transmitter Block Diagram

4.1

General
(Refer to Figure 5-1)
The UHF transmitter contains five basic circuits:
1. Power Amplifier
2. Antenna Switch
3. Harmonic Filter
4. Antenna Matching Network
5. Power Control Integrated Circuit (PCIC).

4.1.1 Power Amplifier
The power amplifier consists of two devices:
1. 9Z67 LDMOS driver IC (U101) and
2. PRF1507 LDMOS PA (Q110).
The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V.
This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input
signal of 2mW (3dBm) (pin16). The current drain would typically be 160mA while operating in the
frequency range of 450-527MHz.
The PRF1507 LDMOS PA is capable of supplying an output power of 7W with an input signal of
0.3W. The current drain would typically be 1300mA while operating in the frequency range of 450527MHz. The power output can be varied by changing the biasing voltage.

Transmitter

5C-5

4.1.2 Antenna Switch
The antenna switch circuit consists of two PIN diodes (CR101 and CR102), a pi network (C107, L104
and C106), and two current limiting resistors (R101, R170). In the transmit mode, B+ at PCIC (U102)
pin 23 will go low and turn on Q111 where a B+ bias is applied to the antenna switch circuit to bias the
diodes "on". The shunt diode (CR102) shorts out the receiver port, and the pi network, which
operates as a quarter wave transmission line, transforms the low impedance of the shunt diode to a
high impedance at the input of the harmonic filter. In the receive mode, the diodes are both off, and
hence, there exists a low attenuation path between the antenna and receiver ports.

4.1.3 Harmonic Filter
The harmonic filter consists of C104, L102, C103, L101 and C102. The design of the harmonic filter
for UHF is that of a modified Zolotarev design. It has been optimized for efficiency of the power
module. This type of filter has the advantage that it can give a greater attenuation in the stop-band for
a given ripple level. The harmonic filter insertion loss is typically less than 1.2dB.

4.1.4 Antenna Matching Network
A matching network which is made up of L116 is used to match the antenna's impedance to the
harmonic filter. This will optimize the performance of the transmitter and receiver into an antenna.

4.1.5 Power Control Integrated Circuit (PCIC)
The transmitter uses the Power Control IC (PCIC), U102 to regulate the power output of the radio.
The current to the final stage of the power module is supplied through R101, which provides a voltage
proportional to the current drain. This voltage is then fedback to the Automatic Level Control (ALC)
within the PCIC to regulate the output power of the transmitter.
The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the
control loop. The reference voltage level is programmable through the SPI line of the PCIC.
There are resistors and integrators within the PCIC, and external capacitors (C133, C134 and C135)
in controlling the transmitter rising and falling time. These are necessary in reducing the power
splatter into adjacent channels.
CR105 and its associated components are part of the temperature cut back circuitry. It senses the
printed circuit board temperature around the transmitter circuits and output a DC voltage to the PCIC.
If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be
reduced so as to reduce the transmitter temperature.

5C-6

5.0

Receiver

Receiver
Antenna

RF Jack

Pin Diode
Antenna
Switch

Varactor
Tuned Filter

RF Amp

Varactor
Tuned Filter

Mixer

Crystal
Filter

IF Amp

AGC

Control Voltage
from ASFIC

First LO
from FGU

Recovered Audio
Squelch

Demodulator
U301

RSSI
IF

16.8 MHz
Reference Clock

IC

Synthesizer

SPI Bus
Second
LO VCO

Figure 5-2: UHF Receiver Block Diagram

5.1

Receiver Front-End
(Refer to UHF Band 2 Receiver Front End Schematic Diagram on page 5C-22 and UHF Band 2
Transmitter Schematic Diagram on page 5C-26)
The RF signal is received by the antenna and applied to a low-pass filter. For UHF, the filter consists
of L101, L102, C102, C103, C104. The filtered RF signal is passed through the antenna switch. The
antenna switch circuit consists of two PIN diodes(CR101 and CR102) and a pi network (C106, L104
and C107).The signal is then applied to a varactor tuned bandpass filter. The UHF bandpass filter
comprises of L301, L302, C302, C303, C304, CR301 and CR302. The bandpass filter is tuned by
applying a control voltage to the varactor diodes(CR301 and CR302) in the filter.
The bandpass filter is electronically tuned by the DACRx from IC404 which is controlled by the
microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the
varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter
across the band.
The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being
amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass
filter, consisting of L306, L307, C313, C317, CR304 and CR305.
Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth
of the filter is about 50 MHz. This enables the filters to be electronically controlled by using a single
control voltage which is DACRx .

Receiver

5C-7

The output of the post-RF amplifier filter which is connected to the passive double balanced mixer
consists of T301, T302 and CR306. Matching of the filter to the mixer is provided by C381. After
mixing with the first LO signal from the voltage controlled oscillator (VCO) using low side injection, the
RF signal is down-converted to the 45.1 MHz IF signal.
The IF signal coming out of the mixer is transfered to the crystal filter (FL301) through a resistor pad
and a diplexer (C322 and L310). Matching to the input of the crystal filter is provided by C324 and
L311. The crystal filter provides the necessary selectivity and intermodulation protection.

5.2

Receiver Back-End
(Refer to UHF Band 2 Receiver Back End Schematic Diagram on page 5C-23)
The output of crystal filter FL301 is matched to the input of IF amplifier transistor Q302 by
components R352 and C325. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5).
The IF amplifer provides a gain of about 7dB. The amplified IF signal is then coupled into U301(pin 3)
via C330, C338 and L330 which provides the matching for the IF amplifier and U301.
The IF signal applied to pin 3 of U301 is amplified, down-converted, filtered, and demodulated, to
produce the recovered audio at pin 27 of U301. This IF IC is electronically programmable, and the
amount of filtering (which is dependent on the radio channel spacing) is controlled by the
microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is
replaced by internal filters in the IF module (U301).
The IF IC uses a type of direct conversion process, whereby the externally generated second LO
frequency is divided by two in U301 so that it is very close to the first IF frequency. The IF IC (U301)
synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO
is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF
IC.
In the absence of an IF signal, the VCO will “search” for a frequency, or its frequency will vary close to
twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The
second LO/VCO is a Colpitts oscillator built around transistor Q320. The VCO has a varactor diode,
CR310, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter
consisting of C362, C363, C364, R320 and R321.
The IF IC (U301) also performs several other functions. It provides a received signal-strength
indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor,
and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The
RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end.
The demodulated signal on pin 27 of U301 is also used for squelch control. The signal is routed to
U404 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio
signal is also routed to U404 for processing before going to the audio amplifier for amplification.

5C-8

5.3

Receiver

Automatic Gain Control Circuit
(Refer to UHF Band 2 Receiver Front End Schematic Diagram on page 5C-22)
The front end automatic gain control circuit is to provide automatic gain reduction of the front end RF
amplifier via feedback. This action is necessary to prevent overloading of back end circuits. This is
achieved by drawing some of the output power from the RF amplifier’s output. At high radio
frequencies, capacitor C331 provides the low impedance path to ground for this purpose. CR308 is a
PIN diode used for switching the path on or off. A certain amount of forward biasing current is needed
to turn the PIN diode on. Transistors Q315 provides this current where upon saturation, current will
flow via R347, PIN diode, collector and emitter of Q315 and R319 before going to ground. Q315 is an
NPN transistor used for switching here. Maximum current flowing through the PIN is mainly limited by
the resistor R319.
Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q315 to saturation hence
turning it on. RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the
input RF signal power to the radio.
Resistor network at the input to the base of Q315 is scaled to turn on Q315, hence activating the
AGC, at certain RSSI levels. In order to turn on Q315, the voltage across the transistor’s base to
ground must be greater or equal to the voltage across R319, plus the base-emitter voltage (Vbe)
present at Q315. The resistor network with thermistor RT300 is capable of providing temperature
compensation to the AGC circuit, as RSSI generated by U301 is lower at cold temperatures
compared to normal operation at room temperature. Resistor R300 and capacitor C397 form an R-C
network used to dampen any transient instability while the AGC is turning on.

Frequency Generation Circuitry

6.0

5C-9

Frequency Generation Circuitry

Dual
Transistor

Voltage
Multiplier

TRB

VCP
Aux3
Vmult1
Vmult2

Synthesizer
U201

16.8 MHz
Ref. Osc.

Rx VCO Circuit

Aux4

Loop
Filter

MOD Out

Rx Out

Matching
Network

Low
Pass
Filter

Attenuator

To
PA Driver

VCOBIC
U241
Tx Out

To
Mixer

Tx VCO Circuit

Modulating
Signal

Figure 5-3: Frequency Generation Unit Block Diagram
The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer
(U201), and the VCO/Buffer IC (U241). Designed in conjunction to maximize compatibility, the two
ICs provide many of the functions that normally would require additional circuitry. The synthesizer
block diagram illustrates the interconnect and support circuitry used in the region. Refer to the
relevant schematics for the reference designators.
The synthesizer is powered by regulated 5V and 3.3V which come from U247 and U248 respectively.
The synthesizer in turn generates a superfiltered 4.5V which powers U241.
In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry.
Programming for the synthesizer is accomplished through the data , clock and chip select lines from
the microprocessor. A 3.3V dc signal from synthesizer lock detect line indicates to the microprocessor
that the synthesizer is locked.
Transmit modulation from the ASFIC is supplied to pin10 of U201. Internally the audio is digitized by
the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs
through an internal attenuator for modulation balancing purposes before going out to the VCO.

5C-10

6.1

Frequency Generation Circuitry

Synthesizer
(Refer to UHF Band 2 Synthesizer Schematic Diagram on page 5C-24)
The Fractional-N Synthesizer uses a 16.8MHz crystal (FL201) to provide a reference for the system.
The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference
frequencies. Together with C206, C207, C208, R204 and CR203 , they build up the reference
oscillator which is capable of 2.5ppm stability over temperatures of -30 to 85°C. It also provides
16.8MHz at pin 19 of U201 to be used by ASFIC and LVZIF.
The loop filter which consist of C231, C232, C233, R231, R232 and R233 provides the necessary dc
steering voltage for the VCO and determines the amount of noise and spur passing through .
In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at
pin 45 of U201 to put synthesizer within the lock range. The required frequency is then locked by
normal mode charge pump at pin 43 .
Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which
is made up of C258, C259, C228, triple diode CR201 and level shifters U210 and U211. Two 3.3V
square waves ( 180 deg out of phase) are first shifted to 5V, then along with regulated 5V , put
through arrays of diodes and capacitors to build up 13.3V at pin 47 of U201.

7

DATA (U409 PIN 100)

8

CLOCK (U409 PIN 1)

9
CSX (U409 PIN 2)
10

MOD IN (U404 PIN 40)
+5V (U247 PIN 4)
(U248 PIN 5)

13, 30
5, 20, 34, 36

REFERENCE
OSCILLATOR

23
24
25
32
47

VOLTAGE
MULTIPLIER

LOCK

4

LOCK (U409 PIN 56)

FREFOUT

19

FREF (U201 PIN 21 & U404 PIN 34)

DATA
CLK

GND
U251
LOW VOLTAGE
MODIN
FRACTIONAL-N
IOUT
SYNTHESIZER IADAPT
VCC, DC5V

6, 22, 23, 24

CEX

MODOUT

VDD, 3.3V

43
45

AUX4

3

XTAL2

AUX3

2

SFOUT

2-POLE
LOOP
FILTER

41

XTAL1

WARP

STEERING
LINE

LO RF INJECTION
DUAL
TRANSIS
TORS

28 FILTERED 5V

PREIN
BIAS1

VCP
VMULT2
14

VMULT1 AUX1 BIAS2
15

48

VOLTAGE
CONTROLLED
OSCILLATOR

40
TX RF INJECTION
(1ST STAGE OF PA)

39

DUAL
5V TRANSISTORS

R5

PRESCALER IN

Figure 5-4: Synthesizer Block Diagram

Frequency Generation Circuitry

6.2

5C-11

VCO - Voltage Controlled Oscillator
(Refer to UHF Band 2 Voltage Controlled Oscillator Schematic Diagram on page 5C-25)
5V
AUX3 (U201 Pin2)
Level Shifter
Network

Pin 20
Rx-SW

Pin7

Tx-SW

Pin13

(U201 Pin28)
VSF
Steer Line
Voltage
(VCTRL)

U201 Pin 32

Prescaler Out

TRB_IN
Pin 19

AUX4 (U201 Pin3)

Pin 12

TX/RX/BS
Switching Network

Vcc-Superfilter
Pin3

LO RF INJECTION

Presc

U241
VCOBIC

Matching
Network

Low Pass
Filter

Collector/RF in
Pin4
RX Tank

RX VCO
Circuit

TX VCO
Circuit

Rx
Active Bias

Pin5
Pin6

TX Tank

RX

RX

Pin8
VSF
Pin14

TX

Pin16
Pin15

Tx
Active Bias

TX

Pin10

Vcc-Logic

TX RF Injection
Attenuator

Vsens
Circuit

Pin18

(U201 Pin28)
VCC Buffers

Pin2

Pin1

Rx-I adjust

Tx-I adjust

Pins 9,11,17

VSF
(U201 Pin28)

Figure 5-5: VCO Block Diagram
The VCOBIC (U241) in conjunction with the Fractional-N synthesizer (U201) generates RF in both
the receive and the transmit modes of operation. The TRB line (U241 pin 19) determines which
oscillator and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed
from U241 pin 12, through a low pass filter, to the prescaler input (U201 pin 32). After frequency
comparison in the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage
is a DC voltage between 3.5V and 9.5V when the PLL is locked on frequency.

5C-12

Frequency Generation Circuitry

The VCOBIC(U241) is operated at 4.54 V (VSF) and Fractional-N synthesizer (U201) at 3.3V. This
difference in operating voltage requires a level shifter consisting of Q260 and Q261 on the TRB line.
The operation logic is shown in Table 5-1.
Table 5-1: Level Shifter Logic

Desired
Mode

AUX 4

AUX 3

TRB

Tx

Low

High (@3.2V)

High (@4.8V)

Rx

High

Low

Low

Battery Saver

Low

Low

Hi-Z/Float (@2.5V)

In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the
receive oscillator and the receive buffer of U241. The RF signal at U241 pin 8 is run through a
matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at
T302 (refer to UHF Band 2 Receiver Front End Schematic Diagram on page 5C-22).
During the transmit condition, when PTT is depressed, five volts is applied to U241 pin 19. This
activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241. The RF
signal at U241 pin 10 is injected into the input of the PA module (U101 pin16). This RF signal is the
TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the
carrier is received through the U201 pin 41.
When a high impedance is applied to U241 pin19, the VCO is operating in BATTERY SAVER mode.
In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler
buffer are turned off.

Notes For All Schematics and Circuit Boards

7.0

5C-13

Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads
(pF) or microfarads (µF).
2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with
the voltage probe to prevent circuit loading.
3. Reference Designators are assigned in the following manner:
100 Series

=

Transmitter

200 Series

=

Frequency Generation

300 Series

=

Receiver

400/500 Series =

Controller

600 Series

Keypad Board

=

4. Interconnect Tie Point Legend:
UNSWB+

=

Unswitch Battery Voltage (7.5V)

SWB+

=

Switch Battery Voltage (7.5V)

R5

=

Receiver Five Volts

CLK

=

Clock

Vdda

=

Regulated 3.3 Volts (for analog)

Vddd

=

Regulated 3.3 Volts (for digital)

CSX

=

Chip Select Line (not for LVZIF)

SYN

=

Synthesizer

DACRX

=

Digital to Analog Voltage (For Receiver Front End Filter)

VSF

=

Voltage Super Filtered (5 volts)

VR

=

Voltage Regulator

6-LAYER CIRCUIT BOARD DETAIL VIEWING
COPPER STEPS IN PROPER LAYER SEQUENCE
SIDE 1
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
SIDE 2

INNER LAYERS

5C-14

Notes For All Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

Circuit Board/Schematic Diagrams and Parts List

Circuit Board/Schematic Diagrams and Parts List

PB502

PB501

PB504

C502
L332

R505

C350

SH321

C513

C512

R342

VR443

L114

R502
R501

PB505

C520

C140

C101

L105

C102
CR101

C109

4
3
CR503
2

L116

C106

C171

L106

L102

L101

1

C103

R173

CR102
C104

3

C107
L104

R120

R104

C110
C166
C131

Q110

C112

SH100
C188

2

C181

C180

L107
C114

C125
C122

C169
L113

C161

16

L115

9
C129 C165

R161

U101

Q502

C514

C511

C305
C303

R302
R301
L301CR301

C302

C308

L302

C331
CR308

C304
CR302

4

R336

C119

C113

C117
1 C127

R171

8
3

C116

R507

CR310

R320

C354
R324

R346

Q505

C333
R317

L117 R174

L108

L243

C115
R106

C120
R107
R191
C118

L160 C121

C160 R108

C276

R345

R319 VR300 R316

R355

SH301 C301

R248 Q241

SH241

R506
C385
C384

C353

Q315

C381

6
T301
3

C320

C352

C349

VR501

L325

C273
L282

L273

C364
R322

R334

C322 R327

R309

3

4
T302
L309

C351

C396

L310
R308

C363

Q320

SH303
R310

6

C319

TP202

C375

L232

C391

R326

C323

C324

C294

C291
C230

C247 C248

C374

3

R348

R318

R321
C362

C238

C271

L253

L311

TP302

R256

C211

Q261
R339 C386 C370 C272 R253
4
3
C285
L271R243 C286
L321

C253

R260

C251

C289

C257

Q316

C203

C213

R333

CR201

C292

R255

RT300

C325

L202

C228

Q210

4
3

R314 RT301

SH323

C260

40

C397

U247

C233

C282 C229
C283 C217
C214
C212
L201
C297
C210
Q260
4
3

L203

C235

SH201
C220

R206

R300

C328 R335
R338
R325

TP201

J200

VR444

C521
VR440

R351

FL301

B503

B504

3
4

FL201

6

1

R352

C505

1

C216

8.0

5C-15

C141

C111
SH101

UHF Band 2 (450-527MHz) Main Board Top Side
PCB No. 8404102G03/G04/G05

5C-16

Circuit Board/Schematic Diagrams and Parts List

M101

C523

UHF Band 2 (450-527MHz) Main Board Bottom Side
PCB No. 8404102G03/G04/G05

R131

Y201
3

C206

C218 C207

3
4

U211

R111

R132
M300

C281

C295

L281

R349

R331
Q310

L251

R254

C371
R330

C373

C252
CR251

R252

C372

R251C255

11

U241
R245

10

R242

C254

R332

1

R244

SH242
20

C293
C244

R241

C259

C224

L242

L112

1
C174

C242

CR241

C133
R109

13

4
3
C258
C296

1

R281
C265

U210

R232

U201

C243 C245
C250C246

R112 R110

U102
R130

CR243
C134

C135

17
25

CR105
C105

C173

C138
9

C126

R102

H101
C132

CR103 R170

M100

C172 R172

R133

2

1

3
4

CR242

C130
C170
C150
C151C152

Q111

P100

3

C108

4

J102

J101

L241

C241

C123
C128

R101

R231

R233

F501

E101

25

R201

C234

C316

C208
CR203

C204
R204

37

VR439

C317

C318

C378

C313

C380

CR501

C219

R202

C232

R329

L305

CR306

C201
C231

C503

L307

SH202
C263
L261 C264
C223

C298
C202

3

L314

R306
R307
CR305

R305

C395
C312
CR304 L306

C306

C315

L304
C321

Q301

C309
C310

C314

C311 R347

CR303

L303
R303

R304

2

4

R328 R340 C307

C
S501

4
C279

C215

SH304

C

VR442

U248

R311
R312

SH302
L340

R205

B501

2

Q302

C278

SH322
8

VR441

1

C277

R315

C329

1
C348

C347
C356

C342

C341

C340

C355

U301

C360
C361

37

C343
C339

R350 C344

R344

VR506

C338
C326
R313
C327 C330

C390
C383
C346

L331

13

25

5

3

C358

L330

C336

C357

C337

2

C382
R343

C345

C359
S502

C334

L505
4

2

C522

C525
C527
C529
C531
C533
C535
C537
C539
C541
C543
C544
C545
C546
C548
C549
C550
C551
C553

C526
C528
C530
C532
C534
C536
C538
C540
C542
C555
R509
C547
R510
R511

M301

C552

Circuit Board/Schematic Diagrams and Parts List

5C-17

PB504

PB501

PB502
1

CR310
R345
R346

3 4

C304

L302

CR302

R342

R302
R301
CR301

1

L114

C112
C166
C131
SH101

C107
L104
C106

CR102

L102

L116

L101

C140

C181

C102
C109

L106

C188

C104

C180

C120

C118 R191
R106

L108
L107

C520

PB505

C111

CR101

C161
SH241

16

R173
C171
C113

9

R171 R104
R120

U101

3

1

2
Q110
3

C114
C110

8

VR443

4
3
CR503
2
R501

SH301

R176
R175
C115
C116 L117 R174
C119

C127C117
L115

C276

L243

R161

C271

R107

L160
C160 R108

C169
L113
C129C165
C125
C122

L273
L321

C121

Q241

R333
C374

3

4
3
C272 R253
C285
L271
R243 C286

L253

R339 C386 C370

C289
R260

C253

C273

R248 L282

C301

Q502

C513

R502
C305

C331

C512

C511
C514

R320
C364
R322

C354
R324

R316

R334
VR300

R319

RT300

C396
C333
R317
R336

L301
Q261 C247 C248

R505

SH321

SH303
C251

Q505

C350

C302 C303

L309

R506

C385
C353 C384

L105

C101

T301

C320

VR501

L332

L325

C352
C349 R355 Q320

Q315

R507

C103

6

C363

CR308

R309

6

C362

C308

TP202

R318

L310

R308

R321

C351

C381

R348

C502

C521
C322 R327

C291

T302

L232
C238

R310

3

4

TP302

C391

R326
C324

Q316

L202

C213
C211

C203

C375
C319

C257

R255
R256
C233

CR201

C292

C323
L311
SH323

C260
Q210
4
3
Q260
4
3

C282C229 C217
C283
C212 C214 L201
C210 C297

L203

C228

C294 U247

C235

C220

C230

R206

C397
R314 RT301
C328 R335
R338
R325

C325

SH201

40

FL301

TP201

C216

J200

B504

4

R351

3
FL201

B503

6

VR440

R352
1

C505

VR444

R300

C141

SH100

ZMY0131026-O

UHF Band 2 (450-527MHz) Main Board Top Side PCB No. 8404102G07

5C-18

Circuit Board/Schematic Diagrams and Parts List

C318

R329

R231

1

C234

U211
34

C173
R130
R131

1

C133
R109

C378

C206

R254 L251

L281

R349

C255
R252

11
C372 C371
R331 R330

R251

10

Q310
C373

R132

CR251

C254 C252

U241

R332

CR241 L242

20

1

C242
C243 C245
C250 C246
R241
R242

C281 R245

CR243

U102
25

CR105

9

CR242

C244
R244

C128
C130
C170
C150
C152 L112
C138
C151
17

R172

C241

C135
C134
R136

R102

C123

L241

E101

ZMY0131027-O

UHF Band 2 (450-527MHz) Main Board Bottom Side PCB No. 8404102G07

R281
C265
4
3

13
C224

R112 R110
R111 C295

C172

25

SH242

C316

C174

C132

CR501

C208
CR203

U201

VR439

CR305
C317

C312

C380

SH304

H101

R133
P100

R233 C201
C231
R232

C395

R347

C313

R101

Q111
3
4

L307

C232

C126

CR103
1

C306

L305

C108
2

L306

C105

J102

4
3

C311

R170

CR160
J101

C315

CR306

CR304
R306
R307

L304

C314

013C

R304

R328 R340

2

Q301

R303 C309

R305

L303

C321

C

4

C503

C204
R204

C207

L314
F501

L340

CR303

C307

C

S501

SH202
C263
L261 C264
C223
C219
37
R202
R201

C296
C258 U210

3

SH302

3

C215

C218

R315

SH322
8

R205

B501

C298
C202

C336

U248

C278

Y201

C259

R313
C330
Q302

C327
R311
R312

2

C279

C277

C525
C527
C529
C531
C533
C535
C537
C539
C541
C543
C544
C545
C546
C548
C549
C550

C526
C528
C530
C532
C534
C536
C538
C540
C542
C555
R509
C547
R510

C551 C552
C553

R511

1

2

4

VR441

C293

C347
C356
C348

C337

1

C342

C344

C360
C361

37
C341

C340

R350

U301

C343
C339

13

L505
VR506

C338

L331

25

C329
C355

C358
C357
C390
C383 R344
C346

5

3

C382

C359
2

S502

L330

C326

4

R343

C345
C334

C522

Circuit Board/Schematic Diagrams and Parts List

5C-19

C538
100pF

C537
100pF

C536
100pF

C535
100pF

C534
100pF

C533
100pF

C532
100pF

C531
100pF

C530
100pF

C529
100pF

C528
100pF

C527
100pF

C526
100pF

C525
100pF

J200
PTT

PTT

SB1

SB1

SB2

SB2

SB3

SB3

RTA0

RTA0

RTA1

RTA1

PTT
SB1
SB2
SB3
EMER
VOL
RED_LED
GREEN_LED
MECH_SWB+
RTA0
RTA1
RTA2
RTA3
RSSI
CLK
DATA
LVZIF_SEL
CSX
BATT_CODE

RTA2

RTA2

LI_ION

RTA3

RTA3

RSSI

RSSI

CLK

CLK

EMER
VOL
RED_LED

EMER
VOL
RED_LED

GREEN_LED

GREEN_LED

MECH_SWB+

MECH_SWB+

DATA
LVZIF_SEL
CSX
BATT_CODE

DATA
LVZIF_SEL
CSX
BATT_CODE
LI_ION

DEMOD

DEMOD

5V
Vdda
16.8MHz
MODIN
UNSWB+
LOCK

R509
NU

J200-21
C555
100pF

LI_ION

SWB+

J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20

J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31

DEMOD
SWB+
5V
Vdda
16.8MHz

SWB+

MODIN

R511
NU

SWB+

5V

J200-32
R510
0

Vdda
16.8MHz
MODIN
UNSWB+
LOCK

RESET

RESET

DACRX

DACRX

ZMY0130797-O

J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40

UNSWB+

LOCK
RESET
DACRX

C553
100pF

C552
100pF

C551
100pF

C550
100pF

C549
100pF

C548
NU

C547
100pF

C546
100pF

C545
100pF

C544
100pF

C543
NU

C542
NU

C541
NU

C540
NU

C539
NU

UHF Band 2 Controls And Switches Schematic Diagram (sheet 1 of 2)

5C-20

Circuit Board/Schematic Diagrams and Parts List

RADIO_CODE

B501
L505
390nH

UNSWB+

BATTERY_CONTACT
2

BATT_CODE

1

BATT+

F501
24V
S502
SWITCH

MECH_SWB+
LI_ION

if

1

NU

TAB2
LOW

0.47uF

2

NU

HIGH

C502

BATT-

2

5

4

B503
B504

3

3

TAB1

7

1

CR501

VR439
12V

6

VR506

C503

6.8V

100pF

2

1

R507
0

VOL
C505

6.8V
VR501

100pF

Vdda
PB501
SWITCH

SB1

B1 2

3 A2

B2 4

VR440

C521
.01uF

PB502
SWITCH

6.8V

SB2

1 A1

B1 2

3 A2

B2 4

VR441

C522
.01uF

P100

1 A1

6.8V

PB504
SWITCH

PTT

1 A1

B1 2

3 A2

B2 4
PB505
SWITCH

VR444
6.8V
RF_JACK

EMER
C520
.01uF

J101
RF_JACK

1 A1

B1 2

3 A2

B2 4

VR443
6.8V

1 if
4

Vdda

2

GND

SWB+
3
L116
16.28nH

C141
8.2pF

J102
ANTENNA_NUT

2
1

TAB5
TAB2

TAB4

TAB1

TAB3

Q502

CR160
NU

5
4
3

A1

K1

A2

K2

A3

K3

1

3

6

5

2

RED_LED

R505
10K

IMX1

4

R506
47K

Q505

GREEN_LED

C140
NU

R501
680
CR503

R502
180

1

3

2

4

S501
SWITCH

RTA3
1

PC0
2 PC1
4 PC2

RTA0
RTA1

C1 C1

RTA2

GND
7
C511
100pF

UHF Band 2 Controls And Switches Schematic Diagram (sheet 2 of 2)

8
PC3

C0 C0

C512
100pF

C513
100pF

C514
100pF

GND1
9

DUMMY

DATA
NEG
POS
CONN_J

Circuit Board/Schematic Diagrams and Parts List

5C-21

RADIO_CODE

B501
L505
390nH

UNSWB+

BATTERY_CONTACT
2
DATA
1
NEG
3
POS
CONN_J

BATT_CODE
BATT+

F501
24V
4

B503
NU

1

5
TAB2

C502

B504
NU

0.47uF

LOW

if

S502
SWITCH

HIGH

LI_ION

MECH_SWB+

2

3

TAB1

VR439
12V

CR501
7

1

6

BATT-

2

C503

VR506

100pF

6.8V

2

1

R507
0

VOL
C505

6.8V
VR501

100pF

Vdda
PB501
SWITCH
1 A1
3 A2

SB1
VR440

C521
.01uF

PB502
SWITCH

6.8V

1 A1
3 A2

SB2

B1 2
B2 4

VR441

C522
.01uF

P100

B1 2
B2 4

6.8V

PB504
SWITCH

B1 2
B2 4

1 A1
3 A2

PTT

PB505
SWITCH

VR444
6.8V

RF_JACK

1 A1
3 A2

EMER
C520
.01uF

J101
RF_JACK

B1 2
B2 4

VR443
6.8V

1 if
4

2

GND

Vdda
SWB+

3
L116
16.28nH

C141
8.2pF

J102
ANTENNA_NUT
2
1

TAB5
TAB2

TAB4

TAB1

TAB3

Q502

CR160
NU

5
4
3

A1

K1

A2

K2

A3

K3

1

3

6

5

2

RED_LED

R505
10K

IMX1
4

R506
47K

Q505

GREEN_LED

C140
NU

R501
680
CR503

R502
180

1

3

2

4

S501
SWITCH

RTA3

1 PC0
2 PC1
4 PC2
C0 C0

RTA0
RTA1

PC3

8

DUMMY

C1 C1

RTA2

GND
7
C511
100pF

C512
100pF

C513
100pF

GND1
9

C514
100pF

ZMY01301002-O

UHF Band 2 Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404102G07 PCB)

5C-22

Circuit Board/Schematic Diagrams and Parts List

DACRx
C322
82pF

R5
R342
100K

-63.8dBm@45.1MHz
L310
150nH

C303
4.3pF

R303
1.5K
C307
0.1uF

C305
8.2pF

Q301

2

CR303

CR302

C318
7.5pF

C311
NU

2

R329
0

4

3

2

L307
11.03nH

C317
11pF

C302
12pF

L302
11.03nH

C304
11pF

2

L303
22nH

1

1

T302
XFMR

C381
4.7pF

6

R328
2.7
L301
11.03nH

3

CR305

L306
11.03nH

C313
11pF

CR306

1

-51dBm@450.125MHz
-51.2dBm@526.925MHz

3
CR301

R307
100K

CR304

3

1

RX_IN

R306
100K C316
4.3pF

C312
7.5pF

L305
12nH

4

T301
XFMR
6

1

C301
8.2pF

R302
100K

IF
-51.7dBm@450.125MHz
-52.6dBm@526.925MHz

C306
NU

C310
0.1uF

-51.4dBm@450.125MHz
-51.2dBm@526.925MHz

R309
18

R340
8.2K

3

C321
100pF

C309
100pF

C308
100pF

R310
270

R308
270
C380
.01uF

L304
180nH

R301
100K

C315
100pF

2

C314
0.1uF

-24dBm@405.025MHz
-24.9dBm@481.825MHz

R348
3.6K

4

R305
470

R304
12K

L309
16.28nH

TP302

R5
L340
390nH
SH301
SHIELD

SH302
SHIELD

C320
7.5pF

R5
R347
1K

CR308
HSMP3820
3

C395
100pF

L321
NU

C331
100pF
R332
NU

1
RXFE Top Shield

1
RXFE Bottom Shield

R333
NU

R339
0

4.398V

SH304
SHIELD

C396
NU

R336
NU

R5
C333
NU

1
RX Mixer Diode Shield

2

Rx1 = -50dBm@450.125MHz rf signal
Rx2 = -50dBm@526.925MHz rf signal
probed using high impedence probe

R330
NU

1.850V@-50dBm
1
RT300
33.0K

R327
33K
3

2

Q316
NU

R5
2

VR300
NU
R325
6.8K

R326
NU

R335
NU

R338
NU

2
1

UHF Band 2 Receiver Front End Schematic Diagram

2

C397
0.47pF

0.508V
R318
18K

R319
150

C373
NU

Q310
NU

R300
2.2K

RSSI

Q315
1

3

1

RX_INJ
R316
91K

3

C386
100pF

C370
100pF

R334
NU

C391
NU

1
RT301
NU

VCOBUF
C374
100pF
R349
0

1
Mixer Shield

C375
100pF

R317
1K

1
2

SH303
SHIELD

C319
3.6pF

C371
NU

R331
NU

C372
NU

C378
NU

Circuit Board/Schematic Diagrams and Parts List

5C-23

L331
2.20uH

R343
10

Vdd_FILTERED

Vdda
C382
10uF

(SOURCE)

DEMOD

C348
0.1uF

C344
0.1uF

C347
0.1uF

R350
100K

C345
0.1uF

C346
0.1uF

C390
100pF

C329
0.1uF
C343
0.22uF

DB
R344
12K

R345
10K

R355
0

3.185V

C342
1uF

C357
0.22uF

C339
1uF

C356
.022uF

Vdd_FILTERED
L314
2.2uH

C337
100pF

C336
0.1uF

C4P
C3P
C2P
C1P
GREEN_VCC
MIX_BYP
GREEN_VSS
BLUE_VSS
BLUE_VCC
MIX_IN
PREAMP_OUT
PRE_AGC

C355
0.33uF

R5

C4M
C3M
C2M
C1M
VAG
LIM
ROSE_VCC
ROSE_VSS
DEMOD_HF
DEMOD_OUT
PHASE_LOCK
VAG_REF

37
38
39
40
41
42
43
44
45
46
47
48

C352
12pF

Vdd_FILTERED

24
23
22
21
20
19
18
17
16
15
14
13

C349
.022uF

C353
43pF

C334
.022uF

C351
20pF

16.8MHz
C350
330pF

LVZIF_SEL
CLK
DATA

R346
56K
C385
56pF

C354
47pF

R324
2K

L332
100nH

L325
2.20uH
R320
1K
C362
.022uF

R321
2.4K

CR310

C364
.01uF

R322
200K

C363
2.2uF

C328
0.1uF

R313
330

2

2.095V
C359
0.1uF

C338
15pF
C326
.01uF

C384
56pF

1
2
3
4
5
6
7
8
9
10
11
12

R314
3K

U301
32D83

MLPD_CR
BRP_OFF
BROWN_VCC
FREF
GND
CEX
CLK
DATA
TESTA
IOUT
GOLD_VSS
COL

RED_VCC
RED_VSS
PRE_IN
RSSI_OUT
RSSI_FLT
EXTBS
AFC
TESTD
VPP
GOLD_VCC
EMIT
BASE

C340
1uF

2.628V
Q320
3 BFQ67W
1

C358
1200pF

36
35
34
33
32
31
30
29
28
27
26
25

C341
1uF

C383
100pF

-51.4dBm@45.1MHz

RSSI
-55.1dBm@45.1MHz

FL301
XTAL
TBD

6
C324
20pF

IN

OUT
GND
GND1
GND2
GND3

IF

L311
750nH

1
2
4
5

C323
150pF

R311
30K

3

R351
0

C327
100pF

DA
C330
10pF

R312
2.4K

C325
.01uF

2.683V

C360
.022uF
SH323
SHIELD

SH321
SHIELD

SH322
SHIELD

Q302
C361
10nF

R352
3.3K

1
R315
12K

L330
680nH

CRYSTAL FILTER SHIELD

1
LVZIF TOP SHIELD

1
LVZIF BTM SHIELD

0.706V

UHF Band 2 Receiver Back End Schematic Diagram

5C-24

Circuit Board/Schematic Diagrams and Parts List

GND

C258
.01uF

VCC

5

3

NC
GND

VCC

2

C265
NU

C257
100pF

5

2

7.5V

1.65V

U247
ADP3300 1

C259
.01uF

5V
(SOURCE)

CR201

C230
100pF

3
2
1

C229
1000pF

C228
4.7uF

C283
NU

A3 4
A2 5
A1 6

K3
K2
K1

C291
0.47uF

L202
2.2uH

C223
0.1uF

C219
0.22uF

C298
0.1uF

ERR
6 OUT
4 NR
2

SD
IN 3
5

SWB+
C294
100pF

C293
0.47uF
U248
LP2980 3

L203
2.2uH

C292
0.1uF

C282
NU

GND

3

U211
TC7ST04FU
4

C296
0.1uF 1

4
1
NC

2

C235
2.2uF

Vdda

8 CLK
9 CEX

CLK
CSX
MODIN
C210
100pF

C212
100pF

C211
100pF

R201
82K
R202
100K

39 Bias2
40 Bias1

Rx
3.7V
1.6V

Tx
1.6V
3.7V

3.3V

C217
2.2uF

C218
0.1uF

C220
100pF

C279
2.2uF

MODOUT

L261
39nH

35 PVREF
21 VBPASS
40 BIAS1
39 BIAS2

U201
63A27

PRESC

18 REFSEL
42 CCOMP

C263
0.75pF

15
14
12
11

AUX1
AUX2
AUX3
AUX4

48
1
2
3

1

Q210

R256
30

IOUT
IADAPT
LOCK
ADAPTSW
SFOUT
INDMULT
WARP

R231
120

C234
0.47uF

TP202

C232
.047uF

3.5V@450MHz
9.5V@527MHz

1
47K
4.7K
2 47K

C260
100pF

AUX3

10K

AUX4

3

R5

4

R232
620

C231
0.1uF

R233
560

5V

43
45
4
46
28
16
25

VCTRL

LOCK
C213
100pF

TP201
1

L232
12uH

3.3V
R204
47K

6
22
33
44

C204
2.2uF 17
NC1
29 NC2
31 NC3

VMULT1
VMULT2
VMULT3
VMULT4

C233
0.1uF

R255
4.3K

16.8MHz

TEST1 37
TEST2 38

26 SFCAP
27 SFBASE
32 PREIN

C264
100pF

XTAL1 23
XTAL2 24

FREFOUT 19
MODOUT 41

10 MODIN
7 DATA
30 SFIN

DATA
C214
100pF

PD_VDD
PRE_VDD
AVDD
DVDD
VRO
VCP

High (3.3V)

DGND
AGND
PRE_GND
PD_GND

High (3.3V)

C278
2.2uF

4 5

5
34
20
36
13
47

Low (mV)

C277
100pF

GND

L201
2.2uH
C224
0.1uF

4V_3.3V
1

NC ON_OFF*
VOUT
VIN

U210
TC7ST04FU

C238
470pF

FL201

VSF

2.3V
C201
100pF

C202
1000pF

75Z04

C203
4.7uF

6
C207
56pF

C215
NU

IN

OUT

3

GND GND1
4
1

CR203

C208
1.6pF

1.5V
R206
NU

4

C206
330pF

R205
NU

GND

R281
NU

3 OUT
VDD

FADJ 2

1

SH202
SHIELD

Y201
OSC_16.8MHZ
NU

5V

SYNTHESIZER TOP SHIELD
C216
NU

UHF Band 2 Synthesizer Schematic Diagram

SH201
SHIELD

SYNTHESIZER BOTTOM SHIELD

Circuit Board/Schematic Diagrams and Parts List

5C-25

VSF
C281
100pF

R245
240
R242
120
C276
2.2uF

4.6V

C250
4.3pF

L243
RESONATOR
3

C246
100pF

L273
18nH

R241
18
C242
4.3pF

C272
1.1pF

C273
0.1uF

2

L271
27nH

R244
15K

18 14
VCC_LOGIC

RX_INJ
10

TX_INJ

8

VCC_BUFFERS

L281
390nH

C286
0.1uF

C285
100pF

TX_OUT
RX_OUT

12

PRESC

TX_IADJ
RX_IADJ

COLL_RFIN

PRESC_OUT

RX_BASE

U241

Rx_sw
Tx_sw

7
13

RX_SWITCH

50U54

RX_EMITTER
TX_BASE

TX_SWITCH

17

SH242
SHIELD

11

FLIP_IN
GND_FLAG

GND_LOGIC

GND_BUFFERS

TX_EMITTER

SH241
SHIELD

L242
22nH

C245
2.7pF

SUPER_FLTR
C271
1pF

C243
4.3pF

1

TRB_IN

1
2

CR243

3

2

Q241
BFQ67W

4

R243
10K

5

C244
3.6pF

L241
390nH

Rx_sw

1

6

CR242

3.5V@450MHz
9.5V@527MHz

VCTRL

16

2V

3

L282
390nH

15
20
19

C241
100pF

CR241

VSF
R248
30

R253
7.5K

9

C247
100pF

Tx_sw

C248
0.1uF

1 A1

2 A2

4.6V
1

R254
8.2K

1
C289
100pF

VCO TOP SHIELD

VCO BOTTOM SHIELD

L251
390nH

Q261
4

3
C255
100pF

10K
47K

Q260
3

4

R260
1K

C253
1.5pF

1

L253

2

CR251

C251
100pF

RESONATOR

AUX 4

4.7K

5V

C252
20pF

C254
3.3pF

47K
1

R252
270

R251
33

2

10K
2

AUX 3

47K
4.7K

C297
.01uF

3

47K
1

UHF Band 2 Voltage Controlled Oscillator Schematic Diagram

5C-26

Circuit Board/Schematic Diagrams and Parts List

E101
BEAD

R102
0.1

UNSWB+
C108
100pF

L107
33.47nH

C123
10uF

L105
390nH

C114
100pF
C172
0.1uF

C109
100pF

L106
7.66nH

Microstrip

Microstrip
1

Q110
2

C111
11pF

UNSWB+
R106
10

C113
10pF

C112
47pF

3

R175
6.2

R172
200
Microstrip

C121
100pF

L112
390nH

C160
56pF

C118
100pF
C115
30pF

R176
6.2

CR101

L109
11.03nH

L108
4.22nH

C116
33pF

C130
100pF

L160
15.0nH

C120
9.1pF

C117
30pF

C128
.022uF

R108
5.6K

TX_INJ

R103
43

L104
12.39nH

C104
6.2pF

C106
4.7pF

C107
3.3pF

C295
100pF

CR102

21
K 3

J101
RF_JACK

U101
09Z67

C188
36pF

1

R110
300

R170
240

R112
300

2

GND

3
L116
9.75nH
J102
ANTENNA_NUT
2
TAB2
1 TAB1

R174
NU

TAB5 5
TAB4 4
TAB3 3

R120
43K

C119
100pF

C171
100pF

C140
NU

R173
180K

3dBM@450MHz Tx
3dBM@527MHz Tx

UNSWB+

4

C127
1000pF

C169
2pF

R171
43K

1

0.269V Tx

R133
NU

UNSWB+

47K

6

C122
100pF

C174
100pF

TX_BIAS
C131
.022uF

R132
100K
32
31
30
29
28
27
26
25

POS

1
2
3
4
5
6
7
8

R109
200K

SH101
SHIELD

L115
390nH

C133
1000pF
C135
.022uF

RFIN
T1
CI
INT
CJ
VL
CL
GND1

U102
H99S

VAR3
RX
NA
RS
VAR1
VLIM
VAR2
V5EXT

24
23
22
21
20
19
18
17

RESET
C110
100pF

5V
C170
100pF

9
10
11
12
13
14
15
16

SH100
SHIELD

1

1
PA SHIELD

R136
1MEG

C134
3300pF

C138
100pF

C126
0.1uF
CR105
LM50

1
POS

HF SHIELD

VOUT
GND
3

UHF Band 2 Transmitter Schematic Diagram

C132
100pF

47K 2

CSX
L114
390nH

C129
6.8pF
C166
100pF

3
10K

C105
100pF
4.7K

C165
100pF

H101
HEATSINK
1

Q111

DATA
L113
5.6nH

UNSWB+
7.08V Tx

CLK

R104
47K

R101
240

C141
NU

C161
0.1uF

C125
100pF

7.01V Tx

GND4
GND3 13
GND2 12
GND1 5
4

ANO
RSET
TEMP
CEX
DATA
BPOS
CLK
GND2

4

R161
200

R111
20

F168
QX
Q
CQ
CQX
V10
VG
V45

C103
13pF

C152
.022uF

C150
.022uF

NC1
NC2
NC3
NC4

C102
6.2pF

A1

C151
100pF

6
7
2
3

A2
C101
100pF

R107
NU

TX_INJ_1

RX_IN

8
9
10
15

L102
12.39nH

16 RFIN RFOUT1
1 VCNTRLRFOUT2
14
VG1
VD1
11
VG2
G2

L101
12.39nH

2

C173
.022uF

R130
10K

R131
18K

Circuit Board/Schematic Diagrams and Parts List

UHF Band 2 Radio Parts List (RF
Board)
Circuit
Ref

Motorola
Part No.

B501
B503

0986237A02
3980502Z01

B504

3980501Z01

C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C123
C125
C126
C127
C128
C129
C130
C131
C132
C133
C134
C135
C138
C140
C141
C150
C151
C152
C160
C161

2113740F51
2113740F22
2113740F28
2113740F22
2113743N50
2113740F19
2113740F15
2113743N50
2113740F51
2113743N50
2103689A22
2180605Z28
2180605Z20
2113743N50
2113743N31
2113743N27
NOT PLACED
2113743N50
2113743N50
2113743N23
2113743N50
2113743N50
2311049A18
2113743N50
2113743M24
2113743L17
2113743M08
2113743N23
2113743N50
2113743M08
2113743N50
2113743L17
2113743L29
2113743M08
2113743N50
0662057A67
2113740F25
2113743M08
2113743N50
2113743M08
2113743N44
2113743M24

Description
Battery Contact Connector
Contact, Backup B+
(not used in GP328 Plus)
Contact, Backup B(not used in GP328 Plus)
100
6.2
11
6.2
100 pF, 5%
4.7 pF
3.3
100 pF, 5%
100
100 pF, 5%
11.0, 0.05 pF
33 pF
15 pF
100 pF, 5%
16.0 pF, 5%
11.0 pF, 5%
100 pF, 5%
100 pF, 5%
7.5 pF, 0.5 pF
100 pF, 5%
100 pF, 5%
10 uF, 10%
100 pF, 5%
100000 pF, +80% / -20%
1000 pF, 10%
22000 pF, +80% / -20%
7.5 pF, 0.5 pF
100 pF, 5%
22000 pF, +80% / -20%
100 pF, 5%
1000 pF, 10%
3300 pF, 10%
22000 pF, +80% / -20%
100 pF, 5%
5600, 5%
8.2
22000 pF, +80% / -20%
100 pF, 5%
22000 pF, +80% / -20%
56.0 pF, 5%
100000 pF, +80% / -20%

5C-27

Circuit
Ref
C165
C166
C169
C170
C171
C172
C173
C174
C180
C181
C188
C201
C202
C203
C204
C206
C207
C208
C210
C211
C212
C213
C214
C215
C216
C217
C218
C219
C220
C223
C224
C228
C229
C230
C231
C232
C233
C234
C235
C238
C241
C242
C243
C244
C245
C246
C247
C248
C250
C251
C252

Motorola
Part No.
2113743N44
2113743N50
2113743N09
2113743N50
2113743N50
2113743E20
2113743M08
2113743N50
NOT PLACED
NOT PLACED
2113743N39
2113743N50
2113743L17
2311049A56
2104993J02
2113740F63
2113743N40
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
NOT PLACED
2104993J02
2113743M24
2113743K16
2113743N50
2113743M24
2113743M24
2311049J11
2113743L17
2113743N50
2113743M24
2113743E12
2311049A01
2311049A05
2104993J02
2113741F17
2113743N50
2113743N17
2113743N17
2113740F14
2113743N12
2113743N50
2113743N50
2113743M24
2113743N17
2113743N50
2113743N26

Description
56.0 pF, 5%
100 pF, 5%
2.0 pF, 0.25 pF
100 pF, 5%
100 pF, 5%
0.10 uF, 10%
22000 pF, +80% / -20%
100 pF, 5%
36.0 pF, 5%
100 pF, 5%
1000 pF, 10%
4.7
2.2 uF
330 , 5%
39.0 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
2.2 uF
100000 pF, +80% / -20%
0.220 uF, +80% / -20%
100 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
4.7 uF, 10%
1000 pF, 10%
100 pF, 5%
100000 pF, +80% / -20%
0.047 uF, 10%
0.1
0.47 uF, 10%
2.2 uF
470 pF
100 pF, 5%
4.3 pF, 0.25 pF
4.3 pF, 0.25 pF
3.0 pF
2.7 pF, 0.25 pF
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
4.3 pF, 0.25 pF
100 pF, 5%
10.0 pF, 5%

Circuit
Ref
C253
C254
C255
C257
C258
C259
C260
C263
C264
C265
C271
C272
C273
C276
C277
C278
C279
C281
C282
C283
C285
C286
C289
C291
C292
C293
C294
C295
C296
C297
C298
C301
C302
C303
C304
C305
C306
C307
C308
C309
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C320

Motorola
Part No.
2113740L01
2113743N26
2113743N50
2113743N50
2113743L41
2113743L41
2113743N50
2113743N02
2113743N50
NOT PLACED
2113743N03
2113743N04
2113743M24
2104993J02
2113743N50
2311049A09
2104993J02
2113743N50
NOT PLACED
NOT PLACED
2113743N50
2113743M24
2113743N50
2311049A69
2113743M24
2113743A27
2113743N50
2113743N50
2113743M24
2113743L41
2113743M24
2113743N24
2113743N28
2113740L09
2113743N27
2113743N24
NOT PLACED
2113743M24
2113743N50
2113743N50
2113743M24
NOT PLACED
2113743N23
2113743N27
2113743M24
2113743N50
2113740L09
2113743N27
2113743N23
2113743N15
2113743N23

Description
2.0 pF
10.0 pF, 5%
100 pF, 5%
100 pF, 5%
10000 pF, 10%
10000 pF, 10%
100 pF, 5%
0.75 pF, 0.25 pF
100 pF, 5%
1.0 pF, 0.25 pF
1.1 pF, 0.25 pF
100000 pF, +80% / -20%
2.2 uF
100 pF, 5%
2.2 uF, 10%
2.2 uF
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
100 pF, 5%
10.0 uF, 20%
100000 pF, +80% / -20%
0.470 uF, 10%
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
10000 pF, 10%
100000 pF, +80% / -20%
8.2 pF, 0.5 pF
12.0 pF, 5%
4.3 pF, 0.1 pF
11.0 pF, 5%
8.2 pF, 0.5 pF
100000 pF, +80% / -20%
100 pF, 5%
100 pF, 5%
100000 pF, +80% / -20%
7.5 pF, 0.5 pF
11.0 pF, 5%
100000 pF, +80% / -20%
100 pF, 5%
4.3 pF, 0.1 pF
11.0 pF, 5%
7.5 pF, 0.5 pF
3.6 pF, 0.25 pF
7.5 pF, 0.5 pF

Circuit
Ref
C321
C322
C323
C324
C325
C326
C327
C328
C329
C330
C331
C333
C334
C336
C337
C338
C339
C340
C341
C342
C343
C344
C345
C346
C347
C348
C349
C350
C351
C352
C353
C354
C355
C356
C357
C358
C359
C360
C361
C362
C363
C364
C370
C371
C372
C373
C374
C375
C378
C380
C381

Motorola
Part No.
2113743N50
2113743N48
2113743N54
2113743N33
2113743L41
2113743L41
2113743N50
2113743M24
2113743M24
2113743N26
2113743N50
NOT PLACED
2113743M08
2113743M24
2113743N50
2113743N30
2180478Z20
2180478Z20
2180478Z20
2180478Z20
2113743A23
2113743M24
2113743M24
2113743M24
2113743M24
2113743M24
2113743E07
2113743L05
2113743N33
2113743N28
2113743N41
2113743N42
2113743A24
2113743M08
2113743A23
2113741A23
2109720D14
2113743E07
2113741F49
2113743M08
2311049A40
2113743L41
2113743N50
NOT PLACED
NOT PLACED
NOT PLACED
2113743N50
2113743N50
NOT PLACED
2113743L41
2113743N18

Description
100 pF, 5%
82.0 pF, 5%
150 pF, 5%
20.0 pF, 5%
10000 pF, 10%
10000 pF, 10%
100 pF, 5%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
10.0 pF, 5%
100 pF, 5%
22000 pF, +80% / -20%
100000 pF, +80% / -20%
100 pF, 5%
15.0 pF, 5%
1.0 uF
1.0 uF
1.0 uF
1.0 uF
0.220 uF, 10%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
100000 pF, +80% / -20%
0.022 uF
330 pF, 10%
20.0 pF, 5%
12.0 pF, 5%
43.0 pF, 5%
47.0 pF, 5%
0.330 uF, 10%
22000 pF, +80% / -20%
0.220 uF, 10%
1200 pF, 5%
0.1 uF
0.022 uF
10000
22000 pF, +80% / -20%
2.2 uF, 10%
10000 pF, 10%
100 pF, 5%

100 pF, 5%
100 pF, 5%
10000 pF, 10%
4.7 pF, 0.25 pF

5C-28

Circuit
Ref
C382
C383
C384
C385
C386
C390
C391
C395
C396
C397
C502
C503
C505
C511
C512
C513
C514
C520
C521
C522
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C541
C542
C543
C544
C545
C546
C547
C548
C549
C550
C551
C552
C553
C555
CR101

Circuit Board/Schematic Diagrams and Parts List

Motorola
Part No.
2311049A59
2113743N50
2113743N44
2113743N44
2113743N50
2113743N50
NOT PLACED
2113743N50
NOT PLACED
2311049A07
2311049A05
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743L41
2113743L41
2113743L41
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
NOT PLACED
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
4880973Z02

Description
10.0 uF, 10%
100 pF, 5%
56.0 pF, 5%
56.0 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
1.0 uF, 10%
0.47 uF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
10000 pF, 10%
10000 pF, 10%
10000 pF, 10%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%

100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
100 pF, 5%
PIN Diode

Circuit
Ref

Motorola
Part No.

CR102
CR103
CR105
CR160
CR201
CR203
CR241
CR242
CR243
CR251
CR301
CR302
CR303
CR304
CR305
CR306
CR308
CR310
CR501
CR503
E101
F501
FL201
FL301
H101
J101
J102

4802245J41
4802245J41
5185963A15
NOT PLACED
4802233J09
4862824C03
4805649Q13
4862824C01
4862824C01
4802245J22
4862824C01
4862824C01
4880154K03
4862824C01
4862824C01
4802245J42
4802245J41
4862824C01
4880107R01
4805729G49
2484657R01
6580542Z01
**4805875Z04
9186153B01
2680499Z01
0985613Z01
0280519Z02

J200
L101
L102
L104
L105
L106
L107
L108
L112
L113
L114
L115
L116
L117
L160
L201
L202
L203
L232
L241
L242
L243
L251

0905505Y04
2460591B28
2460591B28
2460591B48
2462587N22
2460591A19
2479990G01
2479990A01
2462587N45
2413926H09
2462587N45
2462587N22
2479990C02
2409154M17
2413926H14
2462587Q20
2462587Q20
2462587Q20
2462587P25
2462587V41
2462587V26
2460593C03
2462587V41

Description
PIN Diode
PIN Diode
Temperature Sensor
Triple Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Varactor Diode
Dual Diode
Varactor Diode
Varactor Diode
Ring Quad Diode
PIN Diode
Varactor Diode
Rectifier
Red / Yellow Diode
Inductor Bead Chip
Fuse 3A
Crystal 16.8 MHz
X’tal Filter
Heat Spreader
RF Jack
Antenna Nut
(Ref: 0280519Z04)
Conn ZIF Horizontal
13.37
13.37
15.22
390 nH, 10%
8.71
33.47 nH
4.22 nH
22 nH, 5%
5.6 nH, 0.3 nH
22 nH, 5%
390 nH, 10%
16.28 nH
22.0 nH
15.0 nH, 5%
2200 nH, 20%
2200 nH, 20%
2200 nH, 20%
12000 nH, 5%
390 nH, 10%
22 nH, 5%
Teflon Resonator
390 nH, 10%

Circuit
Ref
L253
L261
L271
L273
L281
L282
L301
L302
L303
L304
L305
L306
L307
L309
L310
L311
L314
L321
L325
L330
L331
L332
L340
L505
P100
PB501
PB502
PB504
PB505
Q110
Q111
Q210
Q241
Q260
Q261
Q301
Q302
Q310
Q315
Q316
Q320
Q502
Q505
R101
R102
R104
R106
R107
R108
R109
R110

Motorola
Part No.
2460593C03
2462587V29
2462587V27
2462587V25
2462587V41
2462587V41
2479990B01
2479990B01
2462587V26
2462587V37
2462587V23
2479990B01
2479990B01
2479990C02
2462587V36
2462587N65
2462587N72
NOT PLACED
2480646Z20
2462587N64
2480646Z20
2462587N53
2462587V41
2462587Q42
3905643V01
4070354A01
4070354A01
4070354A01
4070354A01
4813828A09
4809939C05
4809939C05
4805218N63
4809939C05
4809939C05
4802245J44
4802245J44
NOT PLACED
4880214G02
NOT PLACED
4805218N63
5180159R01
4880214G02
0662057A34
0680539Z01
0662057N15
0662057M26
NOT PLACED
0662057M92
0662057N30
0662057M61

Description
Teflon Resonator
39 nH, 5%
27 nH, 5%
18 nH, 5%
390 nH, 10%
390 nH, 10%
11.03 nH
11.03 nH
22 nH, 5%
180 nH, 5%
12 nH, 5%
11.03 nH
11.03 nH
16.28 nH
150 nH, 5%
750 nH, 5%
2200 nH, 5%
2.20 uH
680 nH, 5%
2.20 uH
100 nH, 5%
390 nH, 10%
390 nH, 10%
Ground Contact
Light Touch Switch
Light Touch Switch
Light Touch Switch
Light Touch Switch
Transistor 8W 450MHz
Transistor Dual NPN / PNP
Transistor Dual NPN / PNP
RF Transistor BFQ67W
Transistor Dual NPN / PNP
Transistor Dual NPN / PNP
NPN Silicon Bipolar Transistor
NPN Silicon Bipolar Transistor
Transistor MMBT3904
RF Transistor BFQ67W
Dual Transistor NPN
Transistor MMBT3904
240, 5%
Power Metal Strip Resistor
47 k, 5%
10, 5%
5600, 5%
200 k, 5%
300, 5%

Circuit
Ref
R111
R112
R120
R130
R131
R132
R133
R136
R161
R170
R171
R172
R173
R174
R175
R176
R191
R201
R202
R204
R205
R206
R231
R232
R233
R241
R242
R243
R244
R245
R248
R251
R252
R253
R254
R255
R256
R260
R281
R300
R301
R302
R303
R304
R305
R306
R307
R308
R309
R310
R311

Motorola
Part No.
0662057M33
0662057M61
0662057N14
0662057M98
0662057N05
0662057N33
NOT PLACED
NOT PLACED
0662057M57
0662057A34
0662057N14
0662057A32
0662057N29
0662057N15
0662057B59
0662057B59
0662057C01
0662057N21
0662057N23
0662057N15
NOT PLACED
NOT PLACED
0662057M52
0662057M69
0662057M68
0662057M32
0662057M52
0662057M98
0662057N03
0662057M59
0662057M37
0662057M38
0662057M60
0662057M95
0662057M96
0662057M89
0662057M37
0662057M74
NOT PLACED
0662057M82
0662057N23
0662057N23
0662057M78
0662057N01
0662057M66
0662057N23
0662057N23
0662057M60
0662057M32
0662057M60
0662057N10

Description
20, 5%
300, 5%
43 k, 5%
10 k, 5%
18 k, 5%
270 k, 5%
200, 5%
240, 5%
43 k, 5%
200, 5%
180 k, 5%
47 k, 5%
3.0, 5%
3.0, 5%
0
82 k, 5%
100 k, 5%
47 k, 5%
120, 5%
620, 5%
560, 5%
18, 5%
120, 5%
10 k, 5%
15 k, 5%
240, 5%
30, 5%
33, 5%
270, 5%
7500, 5%
8200, 5%
4300, 5%
30, 5%
1000, 5%
2200, 5%
100 k, 5%
100 k, 5%
1500, 5%
12 k, 5%
470, 5%
100 k, 5%
100 k, 5%
270, 5%
18, 5%
270, 5%
30 k, 5%

Circuit Board/Schematic Diagrams and Parts List

Circuit
Ref

Motorola
Part No.

Description

R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
R322
R324
R325
R326
R327
R328
R329
R330
R331
R332
R333
R334
R335
R336
R338
R339
R340
R342
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R355
R501
R502
R505
R506
R507
R509

0662057M83
0662057M62
0662057M85
0662057N01
0662057A96
0662057M74
0662057A79
0662057A29
0662057M74
0662057M83
0662057N30
0662057M81
0662057M94
NOT PLACED
0662057N11
0662057M12
0662057M01
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
NOT PLACED
0662057M01
0662057M96
0662057N23
0662057M26
0662057N01
0662057M98
0662057N17
0662057M74
0662057M87
0662057C01
0662057N23
0662057C01
0662057M86
0662057M01
0662057M70
0662057M56
0662057M98
0662057N15
0662057M01
0662057M01

R510
R511
RT300
RT301

0662057M01
NOT PLACED
0680590Z01 Thermistor 33k
NOT PLACED

5C-29

Circuit
Ref

Motorola
Part No.

2400, 5%
330, 5%
3000, 5%
12 k, 5%
91 k, 5%
1000, 5%
18 k, 5%
150, 5%
1000, 5%
2400, 5%
200 k, 5%
2000, 5%
6800, 5%

S501

S502
SH100
SH101
SH201
SH202
SH241
SH242
SH301

1880619Z02
2680507Z01
2680510Z01
2680511Z01
2680511Z01
2604120G01
2680514Z01
2680554Z01

33 k, 5%
2.7, 5%
0, 5%

SH302

2680555Z01

0, 5%
8200, 5%
100 k, 5%
10, 5%
12 k, 5%
10 k, 5%
56 k, 5%
1000, 5%
3600, 5%
0
100 k, 5%
0
3300, 5%
0, 5%
680, 5%
180, 5%
10 k, 5%
47 k, 5%
0, 5%
0, 5%
(not used in GP328 Plus)
0, 5%

4080710Z01
4080710Z05

SH303
SH304
SH321
SH322
SH323
T301
T302
U101
U102
U201
U210
U211
U241
U247
U248
U301
VR300
VR439
VR440
VR441
VR443
VR444
VR501
VR506
Y201

Description
Channel Switch
(Ref: 4080710Z09)
Channel Switch (used in
PMUE2049_ only)
(Ref: 4080710Z12)
Potentiometer (Volume)
Shield, Harmonic Filter
Shield, PA
Shield, Synthesizer
Shield, Synthesizer
Shield, VCO
Shield, VCO Bottom / LVZIF
Shield, Receiver Front End
Top
Shield, Receiver Front End
Bottom
Shield, Mixer
Shield, Mixer Diode
Shield, LVZIF 2nd LO
Shield, VCO Bottom / LVZIF
Shield, X’tal Filter
Balun Transformer
Balun Transformer
LDMOS Driver
PCIC
LVFRACN
Inverter
Inverter
VCO Buffer
5V Regulator
3.3V Regulator
LVZIF

2680509Z01
2680624Z01
2680508Z01
2680514Z01
2604082P01
2580541Z02
2580541Z02
5185130C65
5185765B26
5185963A27
5102463J61
5102463J61
5105750U54
5105739X05
5102463J58
5109632D83
NOT PLACED
4880140L17
12V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4802245J73
6.8V Zener Diode
4813830A18 6.8V Diode
4802245J73
6.8V Zener Diode
NOT PLACED
8404102G03 RF PCB
8404102G04 RF PCB
8404102G05 RF PCB
8404102G07 RF PCB
* Motorola Depot Servicing only
** Not Serviceable

5C-30

Circuit Board/Schematic Diagrams and Parts List

THIS PAGE INTENTIONALLY LEFT BLANK

Troubleshooting charts

9.0

5C-31

Troubleshooting charts
MCU Check

PTT

INT
AUDIO
J403 Audio
at Pin 2 &
Pin 3

Press PTT. Red
LED does not
light up
Audio at
YES
AudioPA (U420)
input
(U447)

NO

Check
Audio PA
(U420)

YES

PTT U409 Pin NO
53
low?
YES

NO
Audio from Pin 41
ASFIC, U404?

Check Spk. Flex
Connection

Power Up
Alert Tone
OK?

Check
PB504

Press PTT
Q502-2 High?

NO

NO

Speaker
OK?

NO

Audio at
Pin 2
U404?

YES

U409 EXTAL=
7.3728 MHz?

Check
Q502-2
voltage

Check ASFIC
U404

YES
Read Radio OK?

LED should
light up

YES

Radio could
not PTT
externally

LED
Q502,R501
OK?

U201 Pin 19
16.8 MHz

NO

Check
Setup

Reprogram the
correct data.

YES

NO

YES
EXT
PTT

NO Replace Speaker

YES

No
Check U301
LV ZIF

Before replacing
MCU, check SPI
clock, SPI data, and
RF IC select

YES Not able to program RF Board
ICs

NO

See FGU
Troubleshooting

No
Replace
Faulty
Component
J403 OPT_SEL_1
& OPT_SEL_2
Pin 8 & 9
low?

YES

EXT
SPKR
J403 Pin 9 low?
Pin 8 high?

NO

NO

5V at U247?
3.3V at U248?

Check
Accessories

YES
U409
Pin 52, 6
low?

Check
Accessories

YES

ASFIC U404 Pin
14 & 15 high?

NO

NO

Check
U404

YES

Check
MCU

NO

YES

YES

NO

See FGU
Troubleshooting
chart

U409 Reset Pin
94 High?

7.5V at
Pin 3/5 U247? 4/ NO
3.3V at Pin 1
U248

Check
Q400

Replace U247/
U248

Check any short to
SWB+,
Vdda or Vddd

YES
MCU is OK

YES
Check
U420 Audio PA

Troubleshooting Flow Chart for Controller

5C-32

Troubleshooting charts

START
Bad SINAD
Bad 20dB Quieting
No Recovered Audio

Audio at pin 27 Yes
of U301?

Check Controller

No
Spray of inject 1st IF into
XTAL Filter
IF Freq: 45.1MHz

Yes
B

A

Check Q320 bias circuitry for faults.

Audio heard?

Rotate Freq. Knob

No
Check 2nd LO Control
Voltage at C363

No

Activity on
U301 sel pin?

Yes
B

VCO locked?

Check controller.

Yes

No

Check FGU

No

16.8 MHz
check at pin 22
U301?

Before replacing U301, check 2nd VCO
Q320. Check VCO O/P level, C351,
C352.

Yes
A

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Troubleshooting charts

5C-33

B

Inject RF into J101

Trace IF signal
from L311 to
Q302. Check for
bad XTAL filter.

Yes

IF Signal at
L311?

Q302 collector
OK?
IF signal
present?

No
Yes
RF Signal at
T301?
No

1st LO O/P
OK?
Locked?
Yes

Yes
RF Signal at
C310?

No

No
Check FGU

Yes
Before replacing
U301, check
U301 voltages;
trace IF signal
path.

Check T301, T302, CR306,
R308, R309, R310

Check filter between
C310 & T301.

Check for 2.6
VDC

Yes

A

No
Yes
RF Signal at
C307?

No
Check RF amp (Q301)
Stage.
Is R5 present?

No or
weak RF

Check filter between C301
Yes & C307; program filter to
schematic test freq and
RF Signal at
check
varactor voltages.
C301?

A

No
Check Q210, U201
(pin 48) voltages and
U247

No
Check harmonic filters L101 & L102 and ant.
switches CR101, CR102, L104

Yes

Are varactor
voltages OK?

Yes

Check varactor filter.

No
Check U404 voltage. U404
can be selected by MCU
before replacing U404.

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)

5C-34

Troubleshooting charts

START

No Power

Is There B+
Bias for Ant
switch

Yes

Yes

No

No
Check Q111

Is Control Voltage
High or Low

Is Current
OK?

Low
Check PCIC

High
Check Drive to
Module
1. Check Pin Diodes
2. Check Harmonic Filter
Is Drive
OK?
Inspect/Repair Tx. Output Network

Yes
Inspect PA Network/Check
Power Out of U101 at Cap
C160

No
Is Power
OK?
Yes

Is Power
OK?

Yes
Done

No
Done
Replace U101

Is Power
OK?

Yes
Done

No
Replace Q101

Troubleshooting Flow Chart for Transmitter

No
Troubleshoot
VCO

Troubleshooting charts

5C-35

3.3V at U201
pins 5, 20, 34 &
36

Start

Check U248,
L201 & L202

YES

Visual
check of the
Board OK?

NO

Correct
Problem

Check CR201, U210,
U211, C258, C259 &
C228

NO

YES
YES
5V
NO
at pin 6 of
CR201

Is 16.8MHz
Signal at
U201 Pin 19?

Is U201 Pin 47
AT = 13 VDC
YES

NO

NO
YES

Check
L202

Check Q260,
Q261 & R260

+5V at U201
Pin’s
13 & 30?
YES

Are signals
at Pin’s 14 &
15 of U201?

YES

Replace
U201

NO

Check 5V
Regulator

NO

Is U241 Pin 19
<0.7 VDC in RX &
>4.3 VDC in TX?

Is
16.8MHz
signal at
U201 pin
23?

NO

Check FL201, C206,
C207, C208, CR203 &
R204

NO
Are Waveforms
at Pins 14 & 15
triangular?

NO

YES
YES

YES
U201 pin 2 at
>3V in Tx and
<0.7V in Rx

Is U201 Pin 18
AT 4.54 VDC?

YES
NO

NO

NO

Replace U201

NO

Is there a short
between Pin 47 and
Pins 14 & 15 of
U201?

Check programming
lines between U409
and U201 Pins 7,8 & 9

YES
YES

NO

Remove
Shorts
Check uP U409
Troubleshooting
Chart

Is RF level at
U201 Pin 32
>-30 dBm?

NO

If L261, C263 & C264
are OK, then see VCO
troubleshooting chart

Do Pins 7,8 & 9
of U201 toggle
when channel is
changed?

YES

Is information
from µP U409
correct?

YES

Replace U201

YES

Are R231,R232,
R233,C231,C232,
& C233 OK?

NO

Replace or
resolder
necessary
components

YES
Replace U201

Troubleshooting Flow Chart for Synthesizer

5C-36

Troubleshooting charts

START
Change
U241

No

L253 O/C?

Yes

No LO?

Change
L253

No

Yes

Pin 10
>1V?

A

No

Yes
No

Yes

TRB = 5V?

Tx Carrier?
Yes

No

VCO OK

Check R245 for dry
joint or faulty
AUX 3
High?

Check
R260

No
Check U201
Pin 2 for 3.2V

Change
L243

A

Yes

Pin 19 =0V

Yes

V ctrl 0V
or 13V?

Yes

No
No
AUX 4
High?

Check for faulty parts or dry
joints of L271, L273, C370,
C386, R339 & L320
No

Yes
Change
Q261

Troubleshooting Flow Chart for VCO

Change
U201

L243 Open
Circuit?

No
Change
U241

5D-1

Section 5D
MODEL CHART AND TEST SPECIFICATIONS (330-400
MHZ)

1.0

Model Chart

GP Series, 330-400 MHz
Model
AZH38PDC9AA3
AZH38PDH9AA6

Description
GP328 Plus 330-400 MHz 4W 16 CH
GP338 Plus 330-400 MHz 4W 128 CH

Item
X

Description

PMUD1675

GP328 Plus Super Tanapa 330-400 MHz 4W

PMUD1676

GP338 Plus Super Tanapa 330-400 MHz 4W 128CH

PMUD1679

GP328 Plus Tanapa 330-400 MHz 4W

PMUD1680

GP338 Plus Tanapa 330-400 MHz 4W 128CH

JMHD4007

GP328 Plus B/C Kit 330-400 MHz 4W

PMHD4007

GP338 Plus B/C Kit 330-400 MHz 4W 128CH

PMHD4002

GP328 Plus Front Housing Kit

X

PMHD4003

GP338 Plus Front Housing Kit

X

X

PMAD4009

VHF 9 cm antenna (336-368 MHz)

X

X

PMAD4020

VHF 9 cm antenna (370-400 MHz)

6804022G48

GP328 Plus User Guide

6804112J64

GP338 Plus User Guide

X
X
X
X
X
X

X
X

x = Indicates one of each is required.

5D-2

2.0

Specifications (for GP328 Plus)

Specifications (for GP328
Plus)
General
330-400MHz

Transmitter
330-400MHz
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

330-400 MHz

Frequency

330-400 MHz

Channel Capacity:

GP328 Plus : 16 Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz
+1, -3 dB

101.5mm x 55.5mm x
35.5mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

<5%

250 g

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

7.5 Volts ±20%
101.5mm x 55.5mm x
30.5mm

270 g

Receiver

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low
Power

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

12.5kHz

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:

Meets MIL-STD-810C,D & E and TIA/EIA 603

20/
25kHz

Frequency:

330400MHz

330400MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

All specifications are subject to change without notice.

Specifications (for GP338 Plus)

3.0

5D-3

Specifications (for GP338
Plus)
General
330-400MHz

Transmitter
330-400MHz
RF Output
Li Ion @ 7.5V:

Low
1W

High
4W

Frequency:

330-400 MHz

Frequency

330-400 MHz

Channel Capacity:

GP338 Plus : 128 Channels

Channel Spacing

12.5/20/25 kHz

Freq. Stability
(-30°C to +60°C)

0.00025%

Spurs/Harmonics:

-36 dBm < 1 GHz
-30 dBm > 1 GHz
+1, -3 dB

101.5mm x 55.5mm x
38.0mm

Audio Response:
(from 6 dB/oct. PreEmphasis, 300 to
3000Hz)

<5%

250 g

Audio Distortion:
@ 1000 Hz, 60%
Rated Max. Dev.
FM Noise:

-40 dB

Power Supply:
Dimensions
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:
Weight:
with Standard
High Capacity
Lithium Battery:
with Ultra High
Capacity Lithium
Battery:

7.5 Volts ±20%
101.5mm x 55.5mm x
33.0mm

270 g

Receiver

Average Battery
Life @ (5-5-90 Duty
Cycle)
Standard High
Capacity Lithium
Battery:
Ultra High Capacity Lithium Battery:

Low
Power

Sealing:

Meets MIL-STD-810C,D & E and IPX4

Shock:

Meets MIL-STD-810C,D & E and TIA/EIA 603

Vibration:

Meets MIL-STD-810C,D & E and TIA/EIA 603

12.5kHz

High
Power

>10 hrs

>7 hrs

>14 hrs

>10 hrs

Dust:

Meets MIL-STD-810C,D & E and IP5X

Humidity:

Meets MIL-STD-810C,D & E and TIA/EIA 603

20/
25kHz

Frequency:

330400MHz

330400MHz

Sensitivity
12dB EIA SINAD:

0.35 µV

0.35 µV

Adjacent Channel
Selectivity ETS

-60 dB

-70 dB

Intermodulation
ETS

-65 dB

-65 dB

Freq. Stability
(-30°C to +60°C):

0.00025%

0.00025%

Spur Rejection:

-70 dB

-70 dB

Image Rejection:

-70 dB

-70 dB

Audio Output
@ <5% Distortion

500 mW

500 mW

All specifications are subject to change without notice.

5D-4

4.0

Transmitter

Transmitter

PCIC

From VCO

Antenna
Jack

Vcontrol

Vcontrol

PA
Driver

PA-Final
Stage

Antenna Switch/
Harmonic Filter/
Matching Network

Figure 5-1: Transmitter Block Diagram

4.1

General
(Refer to Figure 5-1)
The transmitter contains five basic circuits:
1. Power Amplifier
2. Antenna Switch
3. Harmonic Filter
4. Antenna Matching Network
5. Power Control Integrated Circuit (PCIC).

4.1.1 Power Amplifier
The power amplifier consists of two devices:
1. 9Z67 LDMOS driver IC (U101) and
2. PRF1507 LDMOS PA (Q110).
The 9Z67 LDMOS driver IC contains a 2 stage amplification with a supply voltage of 7.3V.
This RF power amplifier is capable of supplying an output power of 0.3W (pin 6 and 7) with an input
signal of 2mW (3dBm) (pin16). The current drain would typically be 160mA while operating in the
frequency range of 330-400MHz.
The PRF1507 LDMOS PA is capable of supplying an output power of 7W with an input signal of
0.3W. The current drain would typically be 1300mA while operating in the frequency range of 330400MHz. The power output can be varied by changing the biasing voltage.

Transmitter

5D-5

4.1.2 Antenna Switch
The antenna switch circuit consists of two PIN diodes (CR101 and CR102), a pi network (C107, L104
and C106), and two current limiting resistors (R101, R170). In the transmit mode, B+ at PCIC (U102)
pin 23 will go low and turn on Q111 where a B+ bias is applied to the antenna switch circuit to bias the
diodes "on". The shunt diode (CR102) shorts out the receiver port, and the pi network, which
operates as a quarter wave transmission line, transforms the low impedance of the shunt diode to a
high impedance at the input of the harmonic filter. In the receive mode, the diodes are both off, and
hence, there exists a low attenuation path between the antenna and receiver ports.

4.1.3 Harmonic Filter
The harmonic filter consists of C104, L102, C103, L101 and C102. The design of the harmonic filter
for VHF is that of a modified Zolotarev design. It has been optimized for efficiency of the power
module. This type of filter has the advantage that it can give a greater attenuation in the stop-band for
a given ripple level. The harmonic filter insertion loss is typically less than 1.2dB.

4.1.4 Antenna Matching Network
A matching network which is made up of L116 is used to match the antenna's impedance to the
harmonic filter. This will optimize the performance of the transmitter and receiver into an antenna.

4.1.5 Power Control Integrated Circuit (PCIC)
The transmitter uses the Power Control IC (PCIC), U102 to regulate the power output of the radio.
The current to the final stage of the power module is supplied through R101, which provides a voltage
proportional to the current drain. This voltage is then fedback to the Automatic Level Control (ALC)
within the PCIC to regulate the output power of the transmitter.
The PCIC has internal digital to analog converters (DACs) which provide the reference voltage of the
control loop. The reference voltage level is programmable through the SPI line of the PCIC.
There are resistors and integrators within the PCIC, and external capacitors (C133, C134 and C135)
in controlling the transmitter rising and falling time. These are necessary in reducing the power
splatter into adjacent channels.
CR105 and its associated components are part of the temperature cut back circuitry. It senses the
printed circuit board temperature around the transmitter circuits and output a DC voltage to the PCIC.
If the DC voltage produced exceeds the set threshold in the PCIC, the transmitter output power will be
reduced so as to reduce the transmitter temperature.

5D-6

5.0

Receiver

Receiver
Antenna

RF Jack

Pin Diode
Antenna
Switch

Varactor
Tuned Filter

RF Amp

Varactor
Tuned Filter

Mixer

Crystal
Filter

IF Amp

AGC

Control Voltage
from ASFIC

First LO
from FGU

Recovered Audio
Squelch

Demodulator
U301

RSSI
IF

16.8 MHz
Reference Clock

IC

Synthesizer

SPI Bus
Second
LO VCO

Figure 5-2: Receiver Block Diagram

5.1

Receiver Front-End
(Refer to 330-400MHz Receiver Front End Schematic Diagram on page 5D-22 and 330-400MHz
Transmitter Schematic Diagram on page 5D-26)
The RF signal is received by the antenna and applied to a low-pass filter. For VHF, the filter consists
of L101, L102, C102, C103, C104. The filtered RF signal is passed through the antenna switch. The
antenna switch circuit consists of two PIN diodes(CR101 and CR102) and a pi network (C106, L104
and C107).The signal is then applied to a varactor tuned bandpass filter. The VHF bandpass filter
comprises of L301, L302, C302, C303, C304, CR301 and CR302. The bandpass filter is tuned by
applying a control voltage to the varactor diodes(CR301 and CR302) in the filter.
The bandpass filter is electronically tuned by the DACRx from U404 which is controlled by the
microprocessor. Depending on the carrier frequency, the DACRx will supply the tuned voltage to the
varactor diodes in the filter. Wideband operation of the filter is achieved by shifting the bandpass filter
across the band.
The output of the bandpass filter is coupled to the RF amplifier transistor Q301 via C307. After being
amplified by the RF amplifier, the RF signal is further filtered by a second varactor tuned bandpass
filter, consisting of L306, L307, C313, C317, CR304 and CR305.
Both the pre and post-RF amplifier varactor tuned filters have similar responses. The 3 dB bandwidth
of the filter is about 50 MHz. This enables the filters to be electronically controlled by using a single
control voltage which is DACRx .

Receiver

5D-7

The output of the post-RF amplifier filter which is connected to the passive double balanced mixer
consists of T301, T302 and CR306. Matching of the filter to the mixer is provided by C381. After
mixing with the first LO signal from the voltage controlled oscillator (VCO) using low side injection, the
RF signal is down-converted to the 45.1 MHz IF signal.
The IF signal coming out of the mixer is transfered to the crystal filter (FL301) through a resistor pad
and a diplexer (C322 and L310). Matching to the input of the crystal filter is provided by C324 and
L311. The crystal filter provides the necessary selectivity and intermodulation protection.

5.2

Receiver Back-End
(Refer to 330-400MHz Receiver Back End Schematic Diagram on page 5D-23)
The output of crystal filter FL301 is matched to the input of IF amplifier transistor Q302 by
components R352 and C325. Voltage supply to the IF amplifier is taken from the receive 5 volts (R5).
The IF amplifer provides a gain of about 7dB. The amplified IF signal is then coupled into U301(pin 3)
via C330, C338 and L330 which provides the matching for the IF amplifier and U301.
The IF signal applied to pin 3 of U301 is amplified, down-converted, filtered, and demodulated, to
produce the recovered audio at pin 27 of U301. This IF IC is electronically programmable, and the
amount of filtering (which is dependent on the radio channel spacing) is controlled by the
microprocessor. Additional filtering, once externally provided by the conventional ceramic filters, is
replaced by internal filters in the IF module (U301).
The IF IC uses a type of direct conversion process, whereby the externally generated second LO
frequency is divided by two in U301 so that it is very close to the first IF frequency. The IF IC (U301)
synthesizes the second LO and phase-locks the VCO to track the first IF frequency. The second LO
is designed to oscillate at twice the first IF frequency because of the divide-by-two function in the IF
IC.
In the absence of an IF signal, the VCO will “search” for a frequency, or its frequency will vary close to
twice the IF frequency. When an IF signal is received, the VCO will lock onto the IF signal. The
second LO/VCO is a Colpitts oscillator built around transistor Q320. The VCO has a varactor diode,
CR310, to adjust the VCO frequency. The control signal for the varactor is derived from a loop filter
consisting of C362, C363, C364, R320 and R321.
The IF IC (U301) also performs several other functions. It provides a received signal-strength
indicator (RSSI) and a squelch output. The RSSI is a dc voltage monitored by the microprocessor,
and used as a peak indicator during the bench tuning of the receiver front-end varactor filter. The
RSSI voltage is also used to control the automatic gain control (AGC) circuit at the front-end.
The demodulated signal on pin 27 of U301 is also used for squelch control. The signal is routed to
U404 (ASFIC) where squelch signal shaping and detection takes place. The demodulated audio
signal is also routed to U404 for processing before going to the audio amplifier for amplification.

5D-8

5.3

Receiver

Automatic Gain Control Circuit
(Refer to 330-400MHz Receiver Front End Schematic Diagram on page 5D-22)
The front end automatic gain control circuit is to provide automatic gain reduction of the front end RF
amplifier via feedback. This action is necessary to prevent overloading of back end circuits. This is
achieved by drawing some of the output power from the RF amplifier’s output. At high radio
frequencies, capacitor C331 provides the low impedance path to ground for this purpose. CR308 is a
PIN diode used for switching the path on or off. A certain amount of forward biasing current is needed
to turn the PIN diode on. Transistors Q315 provides this current where upon saturation, current will
flow via R347, PIN diode, collector and emitter of Q315 and R319 before going to ground. Q315 is an
NPN transistor used for switching here. Maximum current flowing through the PIN is mainly limited by
the resistor R319.
Radio signal strength indicator, RSSI, a voltage signal, is used to drive Q315 to saturation hence
turning it on. RSSI is produced by U301 and is proportional to the gain of the RF amplifier and the
input RF signal power to the radio.
Resistor network at the input to the base of Q315 is scaled to turn on Q315, hence activating the
AGC, at certain RSSI levels. In order to turn on Q315, the voltage across the transistor’s base to
ground must be greater or equal to the voltage across R319, plus the base-emitter voltage (Vbe)
present at Q315. The resistor network with thermistor RT300 is capable of providing temperature
compensation to the AGC circuit, as RSSI generated by U301 is lower at cold temperatures
compared to normal operation at room temperature. Resistor R300 and capacitor C397 form an R-C
network used to dampen any transient instability while the AGC is turning on.

Frequency Generation Circuitry

6.0

5D-9

Frequency Generation Circuitry

Dual
Transistor

Voltage
Multiplier

TRB

VCP
Aux3
Vmult1
Vmult2

Synthesizer
U201

16.8 MHz
Ref. Osc.

Rx VCO Circuit

Aux4

Loop
Filter

MOD Out

Rx Out

Matching
Network

Low
Pass
Filter

Attenuator

To
PA Driver

VCOBIC
U241
Tx Out

To
Mixer

Tx VCO Circuit

Modulating
Signal

Figure 5-3: Frequency Generation Unit Block Diagram
The Frequency Generation Circuitry is composed of two main ICs, the Fractional-N synthesizer
(U201), and the VCO/Buffer IC (U241). Designed in conjunction to maximize compatibility, the two
ICs provide many of the functions that normally would require additional circuitry. The synthesizer
block diagram illustrates the interconnect and support circuitry used in the region. Refer to the
relevant schematics for the reference designators.
The synthesizer is powered by regulated 5V and 3.3V which come from U247 and U248 respectively.
The synthesizer in turn generates a superfiltered 4.5V which powers U241.
In addition to the VCO, the synthesizer must interface with the logic and ASFIC circuitry.
Programming for the synthesizer is accomplished through the data , clock and chip select lines from
the microprocessor. A 3.3V dc signal from synthesizer lock detect line indicates to the microprocessor
that the synthesizer is locked.
Transmit modulation from the ASFIC is supplied to pin10 of U201. Internally the audio is digitized by
the Fractional-N and applied to the loop divider to provide the low-port modulation. The audio runs
through an internal attenuator for modulation balancing purposes before going out to the VCO.

5D-10

6.1

Frequency Generation Circuitry

Synthesizer
(Refer to 330-400MHz Synthesizer Schematic Diagram on page 5D-24)
The Fractional-N Synthesizer uses a 16.8MHz crystal (FL201) to provide a reference for the system.
The LVFractN IC (U201) further divides this to 2.1MHz, 2.225MHz, and 2.4MHz as reference
frequencies. Together with C206, C207, C208, R204 and CR203 , they build up the reference
oscillator which is capable of 2.5ppm stability over temperatures of -30 to 85°C. It also provides
16.8MHz at pin 19 of U201 to be used by ASFIC and LVZIF.
The loop filter which consist of C231, C232, C233, R231, R232 and R233 provides the necessary dc
steering voltage for the VCO and determines the amount of noise and spur passing through .
In achieving fast locking for the synthesizer, an internal adapt charge pump provides higher current at
pin 45 of U201 to put synthesizer within the lock range. The required frequency is then locked by
normal mode charge pump at pin 43 .
Both the normal and adapt charge pumps get their supply from the capacitive voltage multiplier which
is made up of C258, C259, C228, triple diode CR201 and level shifters U210 and U211. Two 3.3V
square waves ( 180 deg out of phase) are first shifted to 5V, then along with regulated 5V , put
through arrays of diodes and capacitors to build up 13.3V at pin 47 of U201.

7

DATA (U409 PIN 100)

8

CLOCK (U409 PIN 1)

9
CSX (U409 PIN 2)
10

MOD IN (U404 PIN 40)
+5V (U247 PIN 4)
(U248 PIN 5)

13, 30
5, 20, 34, 36

REFERENCE
OSCILLATOR

23
24
25
32
47

VOLTAGE
MULTIPLIER

LOCK

4

LOCK (U409 PIN 56)

FREFOUT

19

FREF (U201 PIN 21 & U404 PIN 34)

DATA
CLK

GND
U251
LOW VOLTAGE
MODIN
FRACTIONAL-N
IOUT
SYNTHESIZER IADAPT
VCC, DC5V

6, 22, 23, 24

CEX

MODOUT

VDD, 3.3V

43
45

AUX4

3

XTAL2

AUX3

2

SFOUT

2-POLE
LOOP
FILTER

41

XTAL1

WARP

STEERING
LINE

LO RF INJECTION
DUAL
TRANSIS
TORS

28 FILTERED 5V

PREIN
BIAS1

VCP
VMULT2
14

VMULT1 AUX1 BIAS2
15

48

VOLTAGE
CONTROLLED
OSCILLATOR

40
TX RF INJECTION
(1ST STAGE OF PA)

39

DUAL
5V TRANSISTORS

R5

PRESCALER IN

Figure 5-4: Synthesizer Block Diagram

Frequency Generation Circuitry

6.2

5D-11

VCO - Voltage Controlled Oscillator
(Refer to 330-400MHz Voltage Controlled Oscillator Schematic Diagram on page 5D-25)
5V
AUX3 (U201 Pin2)
Level Shifter
Network

Pin 20
Rx-SW

Pin7

Tx-SW

Pin13

(U201 Pin28)
VSF
Steer Line
Voltage
(VCTRL)

U201 Pin 32

Prescaler Out

TRB_IN
Pin 19

AUX4 (U201 Pin3)

Pin 12

TX/RX/BS
Switching Network

Vcc-Superfilter
Pin3

LO RF INJECTION

Presc

U241
VCOBIC

Matching
Network

Low Pass
Filter

Collector/RF in
Pin4
RX Tank

RX VCO
Circuit

TX VCO
Circuit

Rx
Active Bias

Pin5
Pin6

TX Tank

RX

RX

Pin8
VSF
Pin14

TX

Pin16
Pin15

Tx
Active Bias

TX

Pin10

Vcc-Logic

TX RF Injection
Attenuator

Vsens
Circuit

Pin18

(U201 Pin28)
VCC Buffers

Pin2

Pin1

Rx-I adjust

Tx-I adjust

Pins 9,11,17

VSF
(U201 Pin28)

Figure 5-5: VCO Block Diagram
The VCOBIC (U241) in conjunction with the Fractional-N synthesizer (U201) generates RF in both
the receive and the transmit modes of operation. The TRB line (U241 pin 19) determines which
oscillator and buffer will be enabled. A sample of the RF signal from the enabled oscillator is routed
from U241 pin 12, through a low pass filter, to the prescaler input (U201 pin 32). After frequency
comparison in the synthesizer, a resultant CONTROL VOLTAGE is received at the VCO. This voltage
is a DC voltage between 3.5V and 9.5V when the PLL is locked on frequency.

5D-12

Frequency Generation Circuitry

The VCOBIC(U241) is operated at 4.54 V (VSF) and Fractional-N synthesizer (U201) at 3.3V. This
difference in operating voltage requires a level shifter consisting of Q260 and Q261 on the TRB line.
The operation logic is shown in Table 5-1.
Table 5-1: Level Shifter Logic

Desired
Mode

AUX 4

AUX 3

TRB

Tx

Low

High (@3.2V)

High (@4.8V)

Rx

High

Low

Low

Battery Saver

Low

Low

Hi-Z/Float (@2.5V)

In the receive mode, U241 pin 19 is low or grounded. This activates the receive VCO by enabling the
receive oscillator and the receive buffer of U241. The RF signal at U241 pin 8 is run through a
matching network. The resulting RF signal is the LO RF INJECTION and it is applied to the mixer at
T302 (refer to 330-400MHz Receiver Front End Schematic Diagram on page 5D-22).
During the transmit condition, when PTT is depressed, five volts is applied to U241 pin 19. This
activates the transmit VCO by enabling the transmit oscillator and the transmit buffer of U241. The RF
signal at U241 pin 10 is injected into the input of the PA module (U101 pin16). This RF signal is the
TX RF INJECTION. Also in transmit mode, the audio signal to be frequency modulated onto the
carrier is received through the U201 pin 41.
When a high impedance is applied to U241 pin19, the VCO is operating in BATTERY SAVER mode.
In this case, both the receive and transmit oscillators as well as the receive transmit and prescaler
buffer are turned off.

Notes For All Schematics and Circuit Boards

7.0

5D-13

Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads
(pF) or microfarads (µF).
2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.2 µH choke in series with
the voltage probe to prevent circuit loading.
3. Reference Designators are assigned in the following manner:
100 Series

=

Transmitter

200 Series

=

Frequency Generation

300 Series

=

Receiver

400/500 Series =

Controller

600 Series

Keypad Board

=

4. Interconnect Tie Point Legend:
UNSWB+

=

Unswitch Battery Voltage (7.5V)

SWB+

=

Switch Battery Voltage (7.5V)

R5

=

Receiver Five Volts

CLK

=

Clock

Vdda

=

Regulated 3.3 Volts (for analog)

Vddd

=

Regulated 3.3 Volts (for digital)

CSX

=

Chip Select Line (not for LVZIF)

SYN

=

Synthesizer

DACRX

=

Digital to Analog Voltage (For Receiver Front End Filter)

VSF

=

Voltage Super Filtered (5 volts)

VR

=

Voltage Regulator

6-LAYER CIRCUIT BOARD DETAIL VIEWING
COPPER STEPS IN PROPER LAYER SEQUENCE
SIDE 1
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
SIDE 2

INNER LAYERS

5D-14

Notes For All Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

Circuit Board/Schematic Diagrams and Parts List

Circuit Board/Schematic Diagrams and Parts List

PB502

PB504

PB501

1

R346

Q505

C129

C180

R502

C511
C514

C302

4
3
CR503
2
C520

R501

PB505
L101

C140

C101

C109

L105

C181

C102
CR101

L106

L116

L102

C106

C103

R120

CR102
L104

1

C171

C112
C166
C131

C107
C104

Q110
3

R173

L107

SH100
C188

2

C113

R171 R104

L108

R106

L109

L114

VR443

SH301

C119

C110

16

C114

9

Q502

C301

C116

C117

C305

C308

R302
R301
CR301

C303

C304
CR302

L302

CR308

C331

C381

6

R336

L117R174

L115

U101

C115

C165
R193

C161

C118

C120
R107

R161

1 C127

C193
C125
C122

SH241

8

3

C169
L113

C276

L273

L243

C374

3

C160 R108

1
C271

L253

L160 C121

R248
Q241

R333

1

R260
Q261
4
R339 C386 C370 C272 R253
3
C285
L321
L271 R243 C286

C289

C253

C513

C333
R317

SH101

C273

L282

R505

C350

L301
C251

R507

C384

C512

C238

C247 C248

C505

C502
L332

CR310

C354
R324

R320

C364
R322

R319 VR300 R316

RT300

C352
C349 R355
Q320

Q315

L310

T301
3

L309

R506

C385
C353
R345

C322 R327

R309

3
C320

C375

TP202

L325

R342

C211

L232

C351

VR501

C396

R308

6

R348

C319

C203

R318

SH303
R310

T302

4

TP302

C391

R326

L202

C213

C257

Q316

U247

R256
C233

C230

CR201

C228

C260
Q210
4 R255
3

C292

L311
SH323

C282 C229
C217
C283
C214
C212
L201
C210 C297
Q260
4
3

L203

R334

C328 R335
R338
R325

C325

SH321
R321
C362 C363

4

C235

C220

C521

VR440
R351

C397

C323

R206

C324

C291
C294

SH201

VR444
R300

R314 RT301

TP201

J200

40

FL301

B504

B503

3
4

FL201

1

R352

C216
6

8.0

5D-15

C141

C111

330-400MHz Main Board Top Side PCB No. 8404101G02/G03/G04

5D-16

Circuit Board/Schematic Diagrams and Parts List

M101

C523

M100

330-400MHz Main Board Bottom Side PCB No. 8404101G02/G03/G04

R132
M300

R349

2
C206
C296
C258

C259

Q310

L251

R254

C371
R330

C373

C252
C256

CR252

CR251 R252

R331

R251C255

11
R245

C372

L281
C281

CR241

R110

10

R242

C254

R332

20

1
U241

R241

R111C295

C174

R244

CR243

C133
R109

C244

C243 C245
C250 C246

L242

L112

CR242

R112

9
U102

25
R131

C135

C151

C134
R136

C150
C138

1

C126

C130
C152

17

R102
CR105

R130

C105

P100

C173

2

C172 R172
R133

1

C108

3

J102

4

Q111
3
4

C132

CR103

J101

H101

R170

C170

C242

C123

L241

C241

E101

R101

13
C224

C550

SH242

C128

CR160

C234

C378

C318

1

VR439

C316

CR501

R329

C380

C317 CR305

C313

703L
R306
R307

L304
C321

L305

C232

L306

C306

C315

R304

C312
CR304

C311R347
R305 C314

Q301

C395

CR303

L303

R328

2

R340C307

8
C

C

S501

C310
C309

U201

C525
C527
C529
C531
C533
C535
C537
C539
C541
C543
C544
C545
C546

C526
C528
C530
C532
C534
C536
C538
C540
C542
C555
R509
C547

C548
C549

R281
C265
U210
4
3
U211
4
3

4

R303

25

R201

CR306

C208
CR203

C204
R204

37

R233
C231C201
R231 R232

F501

SH304
SH302

3
C298
C202

C215
SH202
C263
L261
C223
C264
C219

C218 C207

C503

Y201

C279
C293

L314

R205

B501

U248

R311
R312

R202

L340

4

VR441

1
2

Q302

C278

3

C336

C355

C329
C337

C348

C347
C356

1

37
C342

C341

C340

C277

R315

U301

C360

C326

L331

R350 C344

C343
C339

L330

R344
C361

VR506

C338
R313
C327 C330

25

C390
C383
C346

13

C358

C357
5

3

C382
R343

2

C334

C345

C359
S502

L505

SH322

4

VR442

C522

C551
C553

R510
R511

M301

C552

Circuit Board/Schematic Diagrams and Parts List

5D-17

PB502

PB501

PB504

1

TP202

L309

R345

R346

R320
C364

R322
C354
R324

Q320

Q505

C350

R505

SH321

4

C512

SH241

L302

CR302
R302
R301
CR301

R342

9

16

C129

L115

L114

R120

1

R173
C171

L107
C112

C166
C131
SH101

C109

C520

PB505

SH100

CR102
C103

L104
C106

L106

VR443

4
3
CR503
2
R501

C107

C104

U101

1

C188

CR101

C161

8

Q110
3

C181

3

R161

C127 C117

2

C113

L243

L108
R171 R104

R107

1

C301
SH301

R176
C115
R175
L109 C116 L117
R174
C119
C118
R106

C121
L160
C160 R108

R502

C304

C180

C120

C114
C110

R339

C273

C169
L113
C165
R193
C193
C125
C122

3

C276

L253

R333
C374

1

L321

C289
R260

C253

Q261 C247 C248
4 3
R248 L282
C286
C285
Q241
R253 R243
C271
C272
L271
C370
L273
C386

Q502

C331

L301
C251

C513

C511
C514

C396
C333
R317
R336

C322
R309 R310 L310
R308
6
C381
T301
3

R506

C305

C320

L332

L325
C353 C385
C384

C302 C303

C238

6

VR501

L102

L116

L101

C140

C102
L105

C101

T302

R348
L232

3

4

TP302

C352
C349 R355

Q315

R327 R318
SH303

C203

R316

VR300 R334
R319

RT300

L202

C213
C211

Q316

C351

R507

CR310

C363

C308

C257

Q260

U247

R255
R256
C230

L311

R321
C362

CR308

C292

4
3

C282 C229 C217
C283
C212
C214 L201
C210
C297

CR201

C228

Q210
4
3

C324

C291

C260

L203

40

C294
C235

C220

C233

R206

C375
C319

SH201

R326

SH323

TP201

C323

C216

J200

R314
RT301
C328 R335
R338
R325

C325

C391

4

6

C505

VR444

R300
C397

R351

FL201

FL301

B503

3

B504

R352
1

C521

C502

VR440

C141

C111

ZMY0131018-O
330-400MHz Main Board Top Side PCB No. 8404101G06

5D-18

Circuit Board/Schematic Diagrams and Parts List

2

R133

1
P100

25

C173
CR105

C279
R205

R130
R131

1

C298
C202

C133
R109

R132

C378

L281

R349

R254

11
C372 C371
R331 R330
Q310

C296

CR252

10

C254 C252
C256
R251 C255
R252
CR251

CR241 L242

C258

C218
C207
C206

C259

R233
C231
R231R232

C126

U102

U241

L251

R332

C108

9

17

C172 R172

20

1

C281R245

3

C132

SH242

C243 C245
CR242 C250
C246
CR243 R241R242
R112
R110
R111 C295

J101

R102

C135
C134
R136

CR103

4

Q111
3
4

H101

C105

J102

CR160

R101

C128
C130
C170
C150
C152 L112
C138C151

C241
L241

C242

C123

E101

R170

C201 C293

F501
C503

VR439

R329

C316

C244
R244

R315

C327
C336
C318

C174

C313

3

SH202
C208
L261 C263
C204
CR203
C264
C223
R204
C219
25
37
R202
R201
R281
C265
U201
U210 4
3
1
C232
13
U211
C234
C224
3 4

CR501

C317

L305

R306
R307

C321
R305

C315
L304

L307

C306 CR304 C380 CR305

U248

Y201

C215

3

CR306
L306

C312

C310

C311R347
C314

L340 C395

CR303

R303 C309

R328

2

L303

Q301
R304

4

C307

S501

C

C278

R311
R312

SH304

SH302

R340

C

2

L314

SH322
8

B501

2

4

VR441
C277

C330
Q302

C326
R313

C360
C361

1

C342

C341

C340

37

C338

C344 R350

U301

C343
C339

13

25

C337

5

C329
C355

C358
C357
C390
R344
C383
C346

C348

3

C382

C359

2

C347
C356

S502

L505
VR506

1

L330

L331

4

R343

C345
C334

C522

C373

ZMY0131019-O
330-400MHz Main Board Bottom Side PCB No. 8404101G06

C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C539
C540
C541
C542
C543
C555
C544
R509
C545
C547
C546
C548
C549 R510
R511
C550
C551
C553

C552

Circuit Board/Schematic Diagrams and Parts List

5D-19

C538
100pF

C537
100pF

C536
100pF

C535
100pF

C534
100pF

C533
100pF

C532
100pF

C531
100pF

C530
100pF

C529
100pF

C528
100pF

C527
100pF

C526
100pF

C525
100pF

J200

PTT

PTT

SB1

SB1

SB2

SB2

SB3

SB3

EMER
VOL
RED_LED

EMER
VOL
RED_LED

GREEN_LED

GREEN_LED

MECH_SWB+

MECH_SWB+

RTA0

RTA0

RTA1

RTA1

RTA2

RTA2

RTA3

RTA3

RSSI
RF
CLK

RSSI

DATA

DATA

LVZIF_SEL
CSX
BATT_CODE

CLK

LVZIF_SEL
CSX
BATT_CODE

LI_ION

LI_ION

DEMOD

DEMOD

SWB+
5V
Vdda
16.8MHz
MODIN
UNSWB+
LOCK

PTT
SB1
SB2
SB3
EMER
VOL
RED_LED
GREEN_LED
MECH_SWB+
RTA0
RTA1
RTA2
RTA3
RSSI
CLK
DATA
LVZIF_SEL
CSX
BATT_CODE
LI_ION

J200-1
J200-2
J200-3
J200-4
J200-5
J200-6
J200-7
J200-8
J200-9
J200-10
J200-11
J200-12
J200-13
J200-14
J200-15
J200-16
J200-17
J200-18
J200-19
J200-20

R509
NU

J200-21
C555
100pF

J200-22
J200-23
J200-24
J200-25
J200-26
J200-27
J200-28
J200-29
J200-30
J200-31

DEMOD
SWB+
5V
Vdda
16.8MHz
MODIN

R511
NU

SWB+

J200-32
R510
0

SWB+
5V
Vdda
16.8MHz

J200-33
J200-34
J200-35
J200-36
J200-37
J200-38
J200-39
J200-40

UNSWB+

MODIN
UNSWB+
LOCK

RESET

RESET

DACRX
DUMMY

DACRX

LOCK
RESET
DACRX

C553
100pF

C552
100pF

C551
100pF

C550
100pF

C549
100pF

C548
NU

C547
100pF

C546
100pF

C545
100pF

C544
100pF

C543
NU

C542
NU

C541
NU

C540
NU

C539
NU

ZMY0130798-O

330-400MHz Controls And Switches Schematic Diagram (sheet 1 of 2)

5D-20

Circuit Board/Schematic Diagrams and Parts List

RADIO_CODE

B501
L505
390nH

UNSWB+

BATTERY_CONTACT
2

BATT_CODE

1

BATT+

F501
24V
S502
SWITCH

MECH_SWB+
LI_ION

if

1

NU

TAB2
LOW

0.47uF

2

NU

HIGH

C502

BATT-

2

5

4

B503
B504

3

3

TAB1

7

1

CR501

VR439
12V

6

VR506

C503

6.8V

100pF

2

1

R507
0

VOL
C505

6.8V
VR501

100pF

Vdda
PB501
SWITCH

SB1

B1 2

3 A2

B2 4

VR440

C521
.01uF

PB502
SWITCH

6.8V

SB2

1 A1

B1 2

3 A2

B2 4

VR441

C522
.01uF

P100

1 A1

6.8V

PB504
SWITCH

PTT

1 A1

B1 2

3 A2

B2 4
PB505
SWITCH

VR444
6.8V
RF_JACK

EMER
C520
.01uF

J101
RF_JACK

1 A1

B1 2

3 A2

B2 4

VR443
6.8V

1 if
4

Vdda

2

GND

SWB+
3
L116
16.28nH

C141
8.2pF

J102
ANTENNA_NUT

2
1

TAB5
TAB2

TAB4

TAB1

TAB3

Q502

CR160
NU

5
4
3

A1

K1

A2

K2

A3

K3

1

3

6

5

2

RED_LED

R505
10K

IMX1

4

R506
47K

Q505

GREEN_LED

C140
NU

R501
680
CR503

R502
180

1

3

2

4

S501
SWITCH

RTA3
1

PC0
2 PC1
4 PC2

RTA0
RTA1

C1 C1

RTA2

GND
7
C511
100pF

330-400MHz Controls And Switches Schematic Diagram (sheet 2 of 2)

8
PC3

C0 C0

C512
100pF

C513
100pF

C514
100pF

GND1
9

DUMMY

DATA
NEG
POS
CONN_J

Circuit Board/Schematic Diagrams and Parts List

5D-21

G

RADIO_CODE

L505
390nH

UNSWB+
G

BATT_CODE

LI_ION

if

G

MECH_SWB+

NU
B503

G

S502
SWITCH

4

5

LOW

HIGH

2

3

BATT+

1
TAB2

C502
0.47uF

B504
NU

G

F501
24V

TAB1

1

6

BATT-

2

VR439
12V

CR501
7

B501
BATTERY_CONTACT
2
DATA
1
NEG
3
POS
CONN_J

VR506

C503
100pF

6.8V

2

1

R507
0

VOL

C505
100pF

6.8V
VR501

G

G

Vdda
PB501
SWITCH

SB1

1 A1
3 A2

G
VR440

C521
.01uF

SB2

PB502
SWITCH

6.8V

B1 2
B2 4

1 A1
3 A2

G
VR441

C522
.01uF

P100

PTT

B1 2
B2 4

PB504
SWITCH

6.8V
1 A1
3 A2

G

B1 2
B2 4

VR444
6.8V

PB505
SWITCH

G

EMER

B1 2
B2 4

1 A1
3 A2

RF_JACK
G
VR443

C520
.01uF

6.8V

J101
RF_JACK
1 if

Vdda

2

SWB+

3

L116
23.57nH

C141
NU

J102
ANTENNA_NUT
2
TAB2
1
TAB1

G

GND

G

4

Q502
CR160
NU

5
TAB5
4
TAB4
3
TAB3

A1
A2
A3

RED_LED

1

3

6

5

2

G

R505
10K

IMX1
4

K1
K2
K3

R506
47K

Q505

G

GREEN_LED

C140
NU
R502
180

R501
680
CR503

RTA3

G

RTA0

G

RTA1

G

RTA2

G

1

3

2

4

S501
SWITCH
1 PC0
2 PC1
4 PC2
C0 C0
C1 C1
GND
7
C511
100pF

C512
100pF

C513
100pF

PC3

8

DUMMY

G

GND1
9

C514
100pF

ZMY01301003-O

330-400MHz Controls And Switches Schematic Diagram
(sheet 2 of 2 for 8404101G06 PCB)

5D-22

Circuit Board/Schematic Diagrams and Parts List

DACRx
C322
82pF

R5

R342
100K

-59.5dBm@45.1MHz
L310
150nH

R301
100K

C301
8.2pF

C303
5.1pF

R302
100K

C305
12pF

RX_IN

C306
NU

2.285V

R303
1K

C307
0.1uF

Q301
1

CR303

CR302

R306
100K

C312
8.2pF

C310
0.1uF

3

R307
100K

C316
5.1 pF

CR304

C318
8.2 pF

C311
NU

2

L301
19.71nH

L302
19.71nH

C304
11pF

2

L303
33nH

1

3

1
2

R329
0

4

3

2

L307
19.71nH

C317
12pF

T302
XFMR

C381
NU

6

R328
2.7
C302
12pF

CR306

1

CR305

L306
19.71nH

C313
12pF

IF
4

T301
XFMR
6

-49.5dBm@330.225MHz
-47.0dBm@399.725MHz

3
CR301

-52.5dBm@330.225MHz
-53.5dBm@399.725MHz

R340
8.2K

-23.5dBm@285.125MHz
-28.5dBm@354.625MHz

R348
3.6K

3

C321
100pF

L305
22nH

-51.5dBm@330.225MHz
-52.0dBm@399.725MHz

R309
18

4

C309
100pF

R310
270

R308
270
C380
.01uF

L304
180nH
C308
100pF

C315
100pF

2

C314
0.1uF

1

R305
470

R304
12K

L309
16.28nH

TP302

R5
L340
390nH
SH301
SHIELD

SH302
SHIELD

C320
7.5pF

R5
R347
1K

CR308
HSMP3820
3

C331
100pF

C395
100pF

R332
NU
1
RXFE Top Shield

1
RXFE Bottom Shield

R339
0

L321
NU

R333
NU

4.396V

SH304
SHIELD

C396
NU

R336
NU

R5
C333
NU

1
RX Mixer Diode Shield

Q315
1

2

Note:
Rx1 = -50dBm@330.225MHz rf signal
Rx2 = -50dBm@399.725MHz rf signal
probed using high impedence probe

2

RSSI

R330
NU

C397
1uF

0.508V

C371
NU

R331
NU

C372
NU

1.797V@-50dBm
1

R327
33K
3
1
2

Q316
NU

RT300
33.0K

R326
NU

R335
NU

R338
NU

2

R5
2

VR300
NU
R325
6.8K

330-400MHz Receiver Front End Schematic Diagram

C373
NU

Q310
NU

R300
2.2K

R318
18K
R319
150

3

1

RX_INJ
R316
91K

3

C386
100pF

C370
100pF

VCOBUF

C374
100pF
R349
0

1
Mixer Shield

C375
100pF

R317
1K

1
2

SH303
SHIELD

C319
1.8pF

R334
NU

C391
NU

1
RT301
NU

ZMY0130352-O

C378
NU

Circuit Board/Schematic Diagrams and Parts List

5D-23

L331
2.20uH

R343
10

Vdd_FILTERED

Vdda
C382
10uF

(SOURCE)

DEMOD

C348
0.1uF

C344
0.1uF

C347
0.1uF

R350
100K

C345
0.1uF

C346
0.1uF

C390
100pF

C329
0.1uF
C343
0.22uF

DB
R344
12K

R345
10K

R355
0

3.185V

C342
1uF

C357
0.22uF

C356
.022uF

Vdd_FILTERED
L314
2.2uH

C337
100pF

C336
0.1uF

C4P
C3P
C2P
C1P
GREEN_VCC
MIX_BYP
GREEN_VSS
BLUE_VSS
BLUE_VCC
MIX_IN
PREAMP_OUT
PRE_AGC

C355
0.33uF

R5

C4M
C3M
C2M
C1M
VAG
LIM
ROSE_VCC
ROSE_VSS
DEMOD_HF
DEMOD_OUT
PHASE_LOCK
VAG_REF

C339
1uF

37
38
39
40
41
42
43
44
45
46
47
48

C352
12pF

Vdd_FILTERED

24
23
22
21
20
19
18
17
16
15
14
13

C349
.022uF

C353
43pF

C334
.022uF

R346
56K

C351
20pF

16.8MHz
C350
330pF

LVZIF_SEL
CLK
DATA

C385
56pF

C354
47pF

R324
2K

C362
.022uF

R321
2.4K

L332
100nH

L325
2.20uH

R320
1K

CR310

C364
.01uF

R322
200K

C363
2.2uF

C328
0.1uF

R313
330

2

2.095V
C359
0.1uF

C338
15pF
C326
.01uF

C384
56pF

1
2
3
4
5
6
7
8
9
10
11
12

R314
3K

U301
32D83

MLPD_CR
BRP_OFF
BROWN_VCC
FREF
GND
CEX
CLK
DATA
TESTA
IOUT
GOLD_VSS
COL

RED_VCC
RED_VSS
PRE_IN
RSSI_OUT
RSSI_FLT
EXTBS
AFC
TESTD
VPP
GOLD_VCC
EMIT
BASE

C340
1uF

2.628V
Q320
3 BFQ67W
1

C358
1200pF

36
35
34
33
32
31
30
29
28
27
26
25

C341
1uF

C383
100pF

-47dBm@45.1MHz

RSSI
-51.2dBm@45.1MHz

FL301
XTAL
TBD

6
C324
20pF

IN

OUT
GND
GND1
GND2
GND3

IF

L311
750nH

1
2
4
5

C323
150pF

R311
30K

3

R351
0

C327
100pF

DA
C330
10pF

R312
2.4K

C325
.01uF

2.683V

ZMY0130349-O

C360
.022uF
SH323
SHIELD

SH321
SHIELD

SH322
SHIELD

Q302
C361
.01uF

R352
3.3K

1

1

1

L330
680nH

R315
12K

CRYSTAL FILTER SHIELD

LVZIF TOP SHIELD

LVZIF BTM SHIELD

0.706V

330-400MHz Receiver Back End Schematic Diagram

5D-24

Circuit Board/Schematic Diagrams and Parts List

GND

C258
.01uF

5

VCC

3

NC
GND

VCC

2

C265
NU

C257
100pF

5

2

7.5V

1.65V

U247
ADP3300 1

C259
.01uF

5V
(SOURCE)

CR201

C230
100pF

3
2
1

C229
1000pF

C228
4.7uF

C283
NU

A3 4
A2 5
A1 6

K3
K2
K1

C291
10uF

L202
2.2uH

SWB+
C294
100pF

C293
0.47uF
U248
LP2980 3

C235
2.2uF

C223
0.1uF

C219
0.22uF

C298
0.1uF

SD
IN 3
5

L203
2.2uH

C292
0.1uF

C282
NU

ERR
6 OUT
4 NR
2

GND

3

U211
TC7ST04FU
4

C296
0.1uF 1

4
1
NC

2

Vdda

8 CLK
9 CEX

CLK
CSX
MODIN
C210
100pF

C211
100pF

R201
82K
R202
100K

39 Bias2
40 Bias1

Rx
3.7V
1.6V

Tx
1.6V
3.7V

3.3V

C217
2.2uF

C220
100pF

C218
0.1uF

C279
2.2uF

MODOUT

L261
82nH

35 PVREF
21 VBPASS
40 BIAS1
39 BIAS2

U201
63A27

PRESC

18 REFSEL
42 CCOMP

C263
NU

15
14
12
11

AUX1
AUX2
AUX3
AUX4

48
1
2
3

IOUT
IADAPT
LOCK
ADAPTSW
SFOUT
INDMULT
WARP

TP202

1

Q210

R231
120

R256
30

C234
0.47uF

C232
.047uF

2.8V@330MHz
9.8V@400MHz

1
47K
4.7K
2 47K

C260
100pF

AUX3

10K

AUX4

3

R5

4

C231
0.1uF

R232
620
R233
560

5V

43
45
4
46
28
16
25

VCTRL

LOCK
C213
100pF

TP201
1

L232
12uH

3.3V
R204
47K

6
22
33
44

C204
2.2uF 17
NC1
29 NC2
31 NC3

VMULT1
VMULT2
VMULT3
VMULT4

C233
0.1uF

R255
4.3K

16.8MHz

TEST1 37
TEST2 38

26 SFCAP
27 SFBASE
32 PREIN

C264
100pF

XTAL1 23
XTAL2 24

FREFOUT 19
MODOUT 41

10 MODIN
7 DATA
30 SFIN

DATA
C214
100pF

C212
100pF

PD_VDD
PRE_VDD
AVDD
DVDD
VRO
VCP

High (3.3V)

DGND
AGND
PRE_GND
PD_GND

High (3.3V)

C278
2.2uF

4 5

5
34
20
36
13
47

Low (mV)

C277
100pF

GND

L201
2.2uH
C224
0.1uF

4V_3.3V
1

NC ON_OFF*
VOUT
VIN

U210
TC7ST04FU

C238
470pF

FL201

VSF

2.3V
C201
100pF

C202
1000pF

75Z04

C203
4.7uF

6
C207
39pF

IN

OUT

3

GND GND1
4
1

C215
NU

CR203

C208
NU

1.5V

R205
NU

R206
NU

4

C206
330pF

GND

R281
NU

3 OUT
VDD

FADJ 2

1

SH201
SHIELD

SH202
SHIELD

Y201
OSC_16.8MHZ
NU

5V

SYNTHESIZER TOP SHIELD

SYNTHESIZER BOTTOM SHIELD

C216
NU

ZMY0130350-O

330-400MHz Synthesizer Schematic Diagram

Circuit Board/Schematic Diagrams and Parts List

5D-25

VSF
C281
100pF

R245
240

C276
2.2uF

C286
0.1uF

R242
180

C285
100pF

4.6V

C250
7.5pF

L243
RESONATOR
3

C246
100pF

L273
39nH

R244
12K

VCC_LOGIC

18 14

RX_INJ
10

TX_INJ

8

TX_OUT
RX_OUT

12

PRESC
C271
1pF

TX_IADJ
RX_IADJ

COLL_RFIN

PRESC_OUT

RX_BASE

U241

Rx_sw
Tx_sw

7
13

RX_SWITCH

50U54

RX_EMITTER
TX_BASE

TX_SWITCH

17

11

FLIP_IN
GND_FLAG

GND_LOGIC

GND_BUFFERS

TX_EMITTER

SH242
SHIELD

TRB_IN

2

CR243

3

2

Q241
BFQ67W

4

L241
390nH

Rx_sw

1

6

2.9V Rx, 3.1V Tx@330MHz
9.6V Rx, 9.8V Tx@400MHz

C244
7pF

R243
10K

5

CR242

VCTRL

16

2V

3

4.6V

L282
390nH

15

C241
100pF

20

CR241

VSF

19
R248
6.8pF

1.1V

9

R253
7.5K

C247
100pF

C248
0.1uF

1 A1

2 A2

Tx_sw
4.6V

R254
5.6K
C289
100pF

VCO BOTTOM SHIELD

C252
13pF

C254
2.7pF

L251
180nH

Q261
4

3
10K

C255
100pF
47K

Q260
3

4

R260
1K

C253
NU

1

L253

2

RESONATOR

AUX 4

4.7K

5V

L242
390nH

1

1

VCO TOP SHIELD

C243
6.8pF

1
C245
2.7pF

SUPER_FLTR

1

C242
7.5pF

C273
0.1uF

L271
56nH

SH241
SHIELD

R241
20
2

C272
1pF

VCC_BUFFERS

L281
390nH

CR252

CR251

C256
13pF

C251
100pF

47K
1

R252
200

R251
22

2

10K
2

AUX 3

ZMY0130351-O

47K
4.7K

C297
.01uF

3

47K
1

330-400MHz Voltage Controlled Oscillator Schematic Diagram

5D-26

Circuit Board/Schematic Diagrams and Parts List

E101
BEAD

R102
0.1

UNSWB+
C108
100pF

L107
33.47nH

C123
10uF

L105
390nH

C114
100pF
C172
0.1uF

C109
100pF

L106
7.66nH

Microstrip

Microstrip
1

Q110
2

C111
11pF

UNSWB+
R106
10

C113
10pF

C112
47pF

R175
0

R172
200
Microstrip

L109
11.03nH

L108
4.22nH

C121
100pF

L112
390nH

C160
56pF

C118
100pF
C115
30pF

3

CR101

C116
33pF

C130
100pF

L160
15.0nH

C120
9.1pF

C117
30pF

C128
.022uF

R108
5.6K

TX_INJ

R103
43

L104
12.39nH

C106
4.7pF

C104
6.2pF

C107
3.3pF

A1

C295
100pF

CR102

21
K 3

J101
RF_JACK

R110
300

R170
240

R112
300

2

GND

3
L116
9.75nH
J102
ANTENNA_NUT
2
TAB2
1 TAB1

R174
NU

TAB5 5
TAB4 4
TAB3 3

C119
100pF

C171
100pF

C140
NU

R173
180K

3dBM@450MHz Tx
3dBM@527MHz Tx

4

C127
1000pF

C165
100pF

C169
2pF

R171
43K

1

0.269V Tx

R133
NU

UNSWB+

47K

6

C122
100pF

C174
100pF

TX_BIAS
C131
.022uF

R132
100K

32
31
30
29
28
27
26
25

POS

1
2
3
4
5
6
7
8

R109
200K

SH101
SHIELD

L115
390nH

C133
1000pF
C135
.022uF

RFIN
T1
CI
INT
CJ
VL
CL
GND1

U102
H99S

VAR3
RX
NA
RS
VAR1
VLIM
VAR2
V5EXT

24
23
22
21
20
19
18
17

RESET
C110
100pF

5V
C170
100pF

9
10
11
12
13
14
15
16

SH100
SHIELD

1

1
PA SHIELD

R136
1MEG

C134
3300pF

C138
100pF

C126
0.1uF
CR105
LM50

1

POS

HF SHIELD

VOUT
GND
3

ZMY0130353-A

330-400MHz Transmitter Schematic Diagram

C132
100pF

47K 2

CSX
L114
390nH

C129
6.8pF
C166
100pF

3
10K

C105
100pF
4.7K

H101
HEATSINK
1

Q111

UNSWB+
DATA

L113
5.6nH
R120
43K

UNSWB+
7.08V Tx

CLK

R104
47K

R101
240

C141
NU

C161
0.1uF

C125
100pF

7.01V Tx

GND4
GND3 13
GND2 12
GND1 5
4

ANO
RSET
TEMP
CEX
DATA
BPOS
CLK
GND2

4

U101
09Z67

C188
36pF

1

R161
200

R111
20

F168
QX
Q
CQ
CQX
V10
VG
V45

C103
13pF

C152
.022uF

C150
.022uF

NC1
NC2
NC3
NC4

C102
6.2pF

C151
100pF

6
7
2
3

A2
C101
100pF

R107
NU

TX_INJ_1

RX_IN

8
9
10
15

L102
12.39nH

16 RFIN RFOUT1
1 VCNTRLRFOUT2
14
VG1
VD1
11
VG2
G2

L101
12.39nH

2

C173
.022uF

R130
10K

R131
18K

Circuit Board/Schematic Diagrams and Parts List

330-400MHz Radio Parts List (RF
Board)
Circuit
Ref

Motorola
Part No.

B501
B503

0986237A02
3980502Z01

B504

3980501Z01

C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C123
C125
C126
C127
C128
C129
C130
C131
C132
C133
C134
C135
C138
C150
C151
C152
C160
C161
C165
C166

2113740F51
2113740F27
2113740F32
2113740F27
2113743L05
2113740F19
2113740F15
2113743L05
2113740F51
2113743L05
2103689A46
2180605Z34
2180605Z16
2113743L05
2113743N26
2113743N26
2113743N36
2113743N50
2113743L05
2113743N25
2113743N50
2113743L05
2311049A18
2113743N50
2113743M24
2113743L17
2113743M08
2113743N33
2113743L05
2113743M08
2113743L05
2113743L17
2113743L29
2113743M08
2113743L05
2113743M08
2113743L05
2113743M08
2113743N50
2113743M24
2113743N50
2113743L05

Description
Battery Contact Module
Backup Battery Contact, B+
(not used in GP328 Plus)
Backup Battery Contact, B(not used in GP328 Plus)
100pF
6.2pF
10pF
6.2pF
100pF
4.7pF
3.3pF
100pF
100pF
100pF
13pF
47pF
10pF
100pF
10pF
10pF
27pF
100pF
100pF
9.1pF
100pF
100pF
10uF
100pF
0.1uF
1000pF
0.022uF
7.5pF
100pF
0.022uF
100pF
1000pF
3300pF
0.022uF
100pF
0.022uF
100pF
0.022uF
100pF
0.1uF
100pF
100pF

5D-27

Circuit
Ref
C169
C170
C171
C172
C173
C174
C180
C188
C193
C201
C202
C203
C204
C206
C207
C210
C211
C212
C213
C214
C217
C218
C219
C220
C223
C224
C228
C229
C230
C231
C232
C233
C234
C235
C238
C241
C242
C243
C244
C245
C246
C247
C248
C250
C251
C252
C254
C255
C256
C257
C258

Motorola
Part No.
2113743N30
2113743L05
2113743L05
2113740F50
2113743M08
2113743L05
2113743N26
2113743N50
2113743M24
2113743N50
2113743L17
2311049A56
2104993J02
2113740F63
2113743N40
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2104993J02
2113743M24
2113743K16
2113743N50
2113743M24
2113743M24
2311049J11
2113743L17
2113743N50
2113743M24
2113743E12
2311049A01
2311049A05
2104993J02
2113741F17
2113743N50
2113743N23
2113743N22
2113740F13
2113743N12
2113743N50
2113743N50
2113743M24
2113743N23
2113743N50
2113743N29
2113743N12
2113743N50
2113743N29
2113743N50
2113743L41

Description
15pF
100pF
100pF
100uF
0.022uF
100pF
10pF
100pF
0.1uF
100pF
1000pF
4.7uF
2.2uF
330pF
56pF
100pF
100pF
100pF
100pF
100pF
2.2uF
0.1uF
0.22uF
100pF
0.1uF
0.1uF
4.7uF
1000pF
100pF
0.1uF
0.047uF
0.1uF
0.47uF
2.2uF
470pF
100pF
7.5pF
6.8pF
2pF
2.7pF
100pF
100pF
0.1uF
7.5pF
100pF
13.0pF
0.047uF
100pF
13.0pF
100pF
0.01uF

Circuit
Ref
C259
C260
C264
C271
C272
C273
C276
C277
C278
C279
C281
C285
C286
C289
C291
C292
C293
C294
C295
C296
C297
C298
C301
C302
C303
C304
C305
C306
C307
C308
C309
C310
C312
C313
C314
C315
C316
C317
C318
C319
C320
C321
C322
C323
C324
C325
C326
C327
C328
C329
C330

Motorola
Part No.
2113743L41
2113743N50
2113743N50
2113743N03
2113743N03
2113743M24
2104993J02
2113743N50
2311049A09
2104993J02
2113743N50
2113743N50
2113743M24
2113743N50
2311049A69
2113743M24
2113743A27
2113743N50
2113743N50
2113743M24
2113743L41
2113743M24
2113743N24
2113743N28
2113740L11
2113743N27
2113743N28
2113743N22
2113743M24
2113743N50
2113743N50
2113743M24
2113743N24
2113743N27
2113743M24
2113743N50
2113740L11
2113743N27
2113743N24
2113743N21
2113743N20
2113743N50
2113743N48
2113743N54
2113743N33
2113743L41
2113743L41
2113743N50
2113743M24
2113743M24
2113743N26

Description
0.01uF
100pF
100pF
1.0pF
1.0pF
0.1uF
2.2uF
100pF
2.2uF
2.2uF
100pF
100pF
0.1uF
100pF
10uF
0.1uF
0.47uF
100pF
100pF
0.1uF
0.01uF
0.1uF
8.2pF
12pF
5.1pF
11.0pF
12pF
6.8pF
0.1uF
100pF
100pF
0.1pF
8.2pF
11.0pF
0.1pF
100pF
5.1pF
11pF
8.2pF
6.2pF
5.6pF
100pF
82pF
150pF
20pF
0.01uF
0.01uF
100pF
0.1pF
0.1pF
10pF

Circuit
Ref
C331
C334
C336
C337
C338
C339
C340
C341
C342
C343
C344
C345
C346
C347
C348
C349
C350
C351
C352
C353
C354
C355
C356
C357
C358
C359
C360
C361
C362
C363
C364
C370
C374
C375
C380
C382
C383
C384
C385
C386
C390
C395
C397
C502
C503
C505
C511
C512
C513
C514
C520

Motorola
Part No.
2113743N50
2113743M08
2113743M24
2113743N50
2113743N30
2180478Z20
2180478Z20
2180478Z20
2180478Z20
2113743A23
2113743M24
2113743M24
2113743M24
2113743M24
2113743M24
2113743E07
2113743L05
2113743N33
2113743N28
2113743N41
2113743N42
2113743A24
2113743M08
2113743A23
2113741A23
2109720D14
2113743E07
2113741F49
2113743M08
2311049A40
2113743L41
2113743N50
2113743N50
2113743N50
2113743L41
2311049A59
2113743N50
2113743N44
2113743N44
2113743N50
2113743N50
2113743N50
2311049A07
2311049A05
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743L41

Description
100pF
0.022uF
0.1pF
100pF
15pF
1.0uF
1.0uF
1.0uF
1.0uF
0.22uF
0.1pF
0.1pF
0.1pF
0.1pF
0.1pF
0.022uF
330pF
20pF
12.0pF
43.0pF
47.0pF
0.330uF
0.022uF
0.22uF
1200pF
0.1uF
0.022uF
10nF
0.022uF
2.2uF
0.01uF
100pF
100pF
100pF
0.01uF
10uF
100pF
56pF
56pF
100pF
100pF
100pF
1.0uF
0.47uF
100pF
100pF
100pF
100pF
100pF
100pF
0.01uF

5D-28

Circuit
Ref

Circuit Board/Schematic Diagrams and Parts List

Motorola
Part No.

C521
C522
C523
C525
C526
C527
C528
C529
C530
C531
C532
C533
C534
C535
C536
C537
C538
C545
C546
C547
C548
C549
C550
C551
C552
C553
C555
CR101
CR102
CR103
CR105
CR201
CR203
CR241
CR242
CR243
CR251
CR252
CR301
CR302
CR303

2113743L41
2113743L41
2113743L41
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
2113743N50
4880973Z02
4802245J41
4802245J41
5185963A15
4802233J09
4862824C03
4805649Q13
4802245J22
4802245J22
4862824C01
4862824C01
4862824C01
4862824C01
4880154K03

CR304
CR305
CR306
CR308
CR310
CR501
CR503
E101
F501

4862824C01
4862824C01
4802245J42
4802245J41
4862824C01
4880107R01
4805729G49
2484657R01
6580542Z01

Description
0.01uF
0.01uF
0.01uF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
100pF
Pin Diode
Pin Diode
Pin Diode
Temperature Sense
Triple Diode
Varactor
Dual Varactor
Varactor
Varactor
Varactor
Varactor
Varactor
Varactor
Dual Common Anode-Cathode
Varactor
Varactor
Ring Quad Diode
Pin Diode
Varactor
Rectifier
LED Red/Yel
Ferrite Bead
Fuse 3A

Circuit
Ref

Motorola
Part No.

FL201
FL301
H101
J101
J102

**4805875Z04
4802245J43
2680499Z01
0985613Z01
0280519Z02

J200
L101
L102
L104
L105
L106
L107
L108
L109
L112
L113
L114
L115
L116
L117
L160
L201
L202
L203
L232
L241
L242
L243
L251
L253
L261
L271
L273
L281
L282
L301
L302
L303
L304
L305
L306
L307
L309
L310
L311
L314
L325
L330
L331
L332

0905505Y04
2479990B02
2479990B02
2479990B02
2462587N22
2460591A19
2479990G01
0611077A01
2479990B01
2462587N50
2413926H09
2462587N45
2462587N22
2460591C56
2409154M17
2413926H14
2462587Q20
2462587Q20
2462587Q20
2462587P25
2462587V41
2462587V41
2460593C02
2462587V37
2460593C02
2462587V33
2462587V31
2462587V29
2462587V41
2462587V41
2460591D24
2460591D24
2462587V28
2462587V37
2462587V23
2460591D24
2460591D24
2479990C02
2462587V36
2462587N65
2462587N72
2480646Z20
2462587N64
2480646Z20
2462587N53

Description
16.8MHZ Xtal
Xtal Filter 45.1Mhz
Heat Spreader
RF Jack Assembly
Antenna Nut
(Ref: 0280519Z04)
CONN ZIF HORIZONTAL
19.61nH
19.61nH
19.61nH
390nH
8.71nH
33.47nH
4.22nH
11.03nH
56nH
5.6nH
22nH
390nH
23.57nH
22.0nH
15.0nH
2.2uH
2.2uH
2.2uH
12uH
390nH
390nH
Teflon Resonator
180nH
Teflon Resonator
82nH
56nH
39nH
390nH
390nH
19.71nH
19.71nH
33nH
180nH
12nH
19.71nH
19.71nH
16.28nH
150nH
750nH
2200nH
2.20uH
680nH
2.2uH
100nH

Circuit
Ref

Motorola
Part No.

L340
L400
L401
L410
L411
L505
P100
PB501
PB502
PB504
PB505
PCB
PCB RF
PCB Ctrl
Q110
Q111
Q210
Q241
Q260
Q261
Q301
Q302
Q315
Q320
Q400
Q403
Q405
Q410
Q417
Q502
Q505
R101
R102
R104
R106
R108
R109
R110
R111
R112
R120
R130
R131
R132
R136
R161
R170
R171
R172
R173
R175

2462587V41
2462587Q42
2462587Q42
2462587Q42
2462587Q42
2462587Q42
3905643V01
4070354A01
4070354A01
4070354A01
4070354A01
6404103G02
8404101G02
8404051G07
4813828A09
4802245J50
4802245J50
4805218N63
4802245J50
4802245J50
4802245J44
4802245J44
4880214G02
4805218N63
4809579E18
4813824A17
4802245J54
4802245J54
4802245J50
5180159R01
4880214G02
0662057A34
0680735Z01
0662057N15
0662057M26
0662057M92
0662057N30
0662057M61
0662057M33
0662057M61
0662057N14
0662057M98
0662057N05
0662057N33
0662057N47
0662057M57
0662057A34
0662057N14
0662057A25
0662057N29
0662057B59

Description
390nH
390NH
390NH
390NH
390NH
390nH
Gnd Contact Finger
Tactile, PushButton
Tactile, PushButton
Tactile, PushButton
Tactile, PushButton
330M PCB PANEL
330M RFPCB
330M Controller PCB
TSTR 8W 450 MHz 7.5V
Dual NPN/PNP
Dual NPN/PNP
NPN
Dual NPN/PNP
Dual NPN/PNP
NPN
NPN
NPN
NPN
MOSFET P-CHAN
TSTR MMBT3906
Dual NPN
Dual NPN
Dual NPN/PNP
Dual NPN
NPN
240
0.075
47K
10
5.6K
200k
300
20
300
43K
10K
18K
270K
1.0M 5%
200
240
5.6K
100 ohm
180K
3 ohm

Circuit
Ref
R176
R193
R201
R202
R204
R231
R232
R233
R241
R242
R243
R244
R245
R248
R251
R252
R253
R254
R255
R256
R260
R300
R301
R302
R303
R304
R305
R306
R307
R308
R309
R310
R311
R312
R313
R314
R315
R316
R317
R318
R319
R320
R321
R322
R324
R325
R327
R328
R329
R339
R340

Motorola
Part No.
0662057B59
0662057M57
0662057N21
0662057N23
0662057N15
0662057M52
0662057M69
0662057M68
0662057M33
0662057M56
0662057M98
0662057N01
0662057M59
0662057M37
0662057M34
0662057M57
0662057N03
0662057M92
0662057M89
0662057M37
0662057M74
0662057M82
0662057N23
0662057N23
0662057M74
0662057N01
0662057M66
0662057N23
0662057N23
0662057M60
0662057M32
0662057M60
0662057N10
0662057M83
0662057M62
0662057M85
0662057N01
0662057A96
0662057M74
0662057A79
0662057A29
0662057M74
0662057M83
0662057N30
0662057M81
0662057M94
0662057N11
0662057M12
0662057M01
0662057M01
0662057M96

Description
3 ohm
200
82K
100K
47K
120
620
560
20
180
10K
12K
240
30
22
200
15K
5.6K
4.3K
30
1K
2.2K
100K
100K
100K
12K
470
100K
100K
270
18
270
30K
2.4K
330
3K
12K
91K
1K
18K
150
1K
1K
1K
2K
6.8K
33K
2.7
0
0
8.2K

Circuit Board/Schematic Diagrams and Parts List

Circuit
Ref

Motorola
Part No.

R342
R343
R344
R345
R346
R347
R348
R349
R350
R351
R352
R355
R501
R502
R505
R506
R509
RT300
RT400
S501

0662057N23
0662057M26
0662057N01
0662057M98
0662057N17
0662057M74
0662057M87
0662057C01
0662057N23
0662057C01
0662057M86
0662057M01
0662057M70
0662057M56
0662057M98
0662057N15
0662057M01
0680590Z01
0680590Z01
4080710Z01

S502
SH100
SH101
SH201
SH202
SH241
SH242
SH301
SH302
SH303
SH304
SH321
SH322
SH323
T301
T302
U101
U102
U201
U210
U211
U241
U247
U248
U301
VR501

1880619Z02
2680507Z01
2680510Z01
2680511Z01
2680511Z01
2604120G01
2680514Z01
2680554Z01
2680555Z01
2680509Z01
2680624Z01
2680508Z01
2680514Z01
2604082P01
2580541Z02
2580541Z02
5185130C65
5185765B28
5185963A27
5102463J61
5102463J61
5105750U54
5105739X05
5102463J58
5109632D83
4813830A18

Description
100K
10
12K
10K
56K
1K
3.6K
0
100K
0
3.3K
0
680
180
10K
47K
0
THERMISTOR_33K
Thermistor 33K
Channel Switch
(Ref: 4080710Z09)
Volume Switch
Harmonic Filter Shield
PA Shield
Synthesizer Top Shield
Synthesizer Bottom Shield
VCO Top Shield
VCO Bottom Shield
Rx Pre-Filter Shield
Rx Post-Filter
Mixer Shield
Mixer Diode Shield
Zif 2nd Lo Shield
Zif Shield
Xtal Filter Shield
XFMR Coil
XFMR Coil
LDMOS Driver
Power Control IC
LVFRACN
Inverter
Inverter
VCO Buffer
Regulator Linear
3.3V Regulator
LVZIF
6.8V Zener

5D-29

Circuit
Ref
VR506

Motorola
Part No.

Description

4802245J73
6.8 V Zener
8404101G02 RF PCB
8404101G03 RF PCB
8404101G04 RF PCB
8404101G06 RF PCB
* Motorola Depot Servicing only
** Not Serviceable

5D-30

Circuit Board/Schematic Diagrams and Parts List

THIS PAGE INTENTIONALLY LEFT BLANK

Troubleshooting charts

9.0

5D-31

Troubleshooting charts
MCU Check

PTT
Press PTT. Red
LED does not
light up

INT
AUDIO
J403 Audio
at Pin 2 &
Pin 3

NO

Audio at
AudioPA
(U420)
input
(U447)

YES

Check
Audio PA
(U420)

YES

PTT U409 Pin NO
53
low?
YES

NO
Audio from Pin 41
ASFIC, U404?

Check Spk. Flex
Connection

Power Up
Alert Tone
OK?

Check
PB504

Press PTT
Q502-2 High?

NO

NO

Speaker
OK?

NO

Audio at
Pin 2
U404?

YES

U409 EXTAL=
7.3728 MHz?

Check
Q502-2
voltage

Check ASFIC
U404

LED should
light up

YES

Radio could
not PTT
externally

LED
Q502,R501
OK?
No
Replace
Faulty
Component

J403 OPT_SEL_1
& OPT_SEL_2
Pin 8 & 9
low?
YES

EXT
SPKR
J403 Pin 9 low?
Pin 8 high?

NO

ASFIC U404 Pin
14 & 15 high?

NO

U409 YES
Pin 52, 6
low?

NO

NO

Check
U404

U201 Pin 19
16.8 MHz

Read Radio OK?

Check
MCU

Check
Setup

YES

NO

NO

Reprogram the
correct data.

See FGU
Troubleshooting

U409 Reset Pin
94 High?

7.5V at
Pin 3/5 U247? 4/ NO
3.3V at Pin 1
U248
YES

YES

NO

See FGU
Troubleshooting
chart

NO

YES

5V at U247?
3.3V at U248?

Check
Accessories

Check
Accessories

YES

YES

NO

YES
EXT
PTT

NO Replace Speaker

YES

No
Check U301
LV ZIF

Before replacing
MCU, check SPI
clock, SPI data, and
RF IC select

YES Not able to program RF Board
ICs

Check
Q400

Replace U247/
U248

Check any short to
SWB+,
Vdda or Vddd

YES
MCU is OK

YES
Check
U420 Audio PA

Troubleshooting Flow Chart for Controller

5D-32

Troubleshooting charts

START
Bad SINAD
Bad 20dB Quieting
No Recovered Audio

Audio at pin 27 Yes
of U301?

Check Controller

No
Spray of inject 1st IF into
XTAL Filter
IF Freq: 45.1MHz

Yes
B

A

Check Q320 bias circuitry for faults.

Audio heard?

Rotate Freq. Knob

No
Check 2nd LO Control
Voltage at C363

No

Activity on
U301 sel pin?

Yes
B

VCO locked?

Check controller.

Yes

No

Check FGU

No

16.8 MHz
check at pin 22
U301?

Before replacing U301, check 2nd VCO
Q320. Check VCO O/P level, C351,
C352.

Yes
A

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)

Troubleshooting charts

5D-33

B

Inject RF into J101

Trace IF signal
from L311 to
Q302. Check for
bad XTAL filter.

Yes

IF Signal at
L311?

Q302 collector
OK?
IF signal
present?

No
Yes
RF Signal at
T301?
No

1st LO O/P
OK?
Locked?

No

Yes
Yes

RF Signal at
C310?

No
Check FGU

Yes
Before replacing
U301, check
U301 voltages;
trace IF signal
path.

Check T301, T302,
CR306, R308, R309,
R310

Check filter between
C310 & T301.

Check for 2.6
VDC

Yes

A

No
Yes
RF Signal at
C307?

Check RF amp (Q301)
Stage.
Is R5 present?

No or
weak RF
Yes
RF Signal at
C301?

No

Check filter between C301
& C307; program filter to
schematic test freq and
check varactor voltages.

A

No
Check Q210, U201
(pin 48) voltages and
U247

No
Check harmonic filters L101 & L102 and ant.
switches CR101, CR102, L104

Yes

Are varactor
voltages OK?

Yes

Check varactor filter.

No
Check U404 voltage. U404
can be selected by MCU
before replacing U404.

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)

5D-34

Troubleshooting charts

START

No Power

Is There B+
Bias for Ant
switch

Yes

Yes

No

No
Check Q111

Is Control Voltage
High or Low

Is Current
OK?

Low
Check PCIC

High
Check Drive to
Module
1. Check Pin Diodes
2. Check Harmonic Filter
Is Drive
OK?
Inspect/Repair Tx. Output Network

Yes
Inspect PA Network/Check
Power Out of U101 at Cap
C160

No
Is Power
OK?
Yes

Is Power
OK?

Yes
Done

No
Done
Replace U101

Is Power
OK?

Yes
Done

No
Replace Q101

Troubleshooting Flow Chart for Transmitter

No
Troubleshoot
VCO

Troubleshooting charts

5D-35

3.3V at U201
pins 5, 20, 34 &
36

Start

Check CR201, U210,
U211, C258, C259 &
C228

Check U248,
L201 & L202

YES

Visual
check of the
Board OK?

NO

Correct
Problem

NO

YES
YES
5V
NO
at pin 6 of
CR201

Is U201 Pin 47
AT = 13 VDC

NO

NO
YES

Check
L202

Check Q260,
Q261 & R260

YES

Are signals
at Pin’s 14 &
15 of U201?

Is
16.8MHz
signal at
U201 pin
23?

NO

YES

Replace
U201

NO

Check 5V
Regulator

NO

Is U241 Pin 19
<0.7 VDC in RX &
>4.3 VDC in TX?

+5V at U201
Pin’s
13 & 30?

YES

Is 16.8MHz
Signal at
U201 Pin 19?

Check FL201, C206,
C207, C208, CR203 &
R204

NO
Are Waveforms
at Pins 14 & 15
triangular?

NO

YES
YES

YES
U201 pin 2 at
>3V in Tx and
<0.7V in Rx

Is U201 Pin 18
AT 4.54 VDC?

YES
NO

NO

NO

Replace U201

NO

Is there a short
between Pin 47 and
Pins 14 & 15 of
U201?

Check programming
lines between U409
and U201 Pins 7,8 & 9

YES
YES

NO

Remove
Shorts
Check uP U409
Troubleshooting
Chart

Is RF level at
U201 Pin 32
>-30 dBm?

NO

If L261, C263 & C264
are OK, then see VCO
troubleshooting chart

Do Pins 7,8 & 9
of U201 toggle
when channel is
changed?

YES

Is information
from µP U409
correct?

YES

Replace U201

YES

Are R231,R232,
R233,C231,C232,
& C233 OK?

NO

Replace or
resolder
necessary
components

YES
Replace U201

Troubleshooting Flow Chart for Synthesizer

5D-36

Troubleshooting charts

START
Change
U241

No

L253 O/C?

Yes

Yes
No LO?

Change
L253
No

Yes
No

Yes

Pin 10
>1V?

A

No

TRB = 5V?

Tx Carrier?
Yes

No

VCO OK

Check R245 for dry
joint or faulty
AUX 3
High?

Check
R260

No
Check U201
Pin 2 for 3.2V

Change
L243

A

Yes

Pin 19 =0V

Yes

V ctrl 0V
or 13V?

Yes

No
No
AUX 4
High?

Check for faulty parts or dry
joints of L271, L273, C370,
C386, R339 & L320
No

Yes
Change
Q261

Troubleshooting Flow Chart for VCO

Change
U201

L243 Open
Circuit?

No
Change
U241

6-1

Section 6
FLEX LAYOUT/SCHEMATIC DIAGRAMS AND PARTS
LISTS
RF-Controller Interconnect Flex

1.1

Rev A
<- TO CTRL

Front Metal
View From Top Side
8480475Z02 REV A

C

98

TO RF ->

40

40

1.0

J400

J200

Rev B
<- TO CTRL

Front Metal
View From Top Side
8480475Z03 REV B

C

98

TO RF ->

40

40

1.2

J400

J200

6-2

2.0

Schematic for RF-Controller Interconnect Flex

Schematic for RF-Controller Interconnect Flex

CONTROLLER
J400
EXT_MIC
VS_CS
SW_B+
Vddd
VS_AUDSEL
Det_Aud_Snd
Rx_Aud_Rtn
Tx_Aud_Snd
Tx_Aud_Rtn

1
2
3
4
5
6
7
8
9

Flat_Tx_Rtn 10
Opt_Bd_En 11
Rdy/Req 12
Rx_Aud_Snd 13
ON 14
INT_EXT_Vdd 15
Key_Row 16
Key_Col 17
PTT
KEY_INT
VS_INT
RESET
LED_EN
OFF_BATT_DATA_OUT
VS_GAINSEL
SrD_Rtn (MISO)
SrD_Snd (DATA)
R_W
LCD_SEL
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
A0
SCK_Snd (CLK)
VS_RAC
Gnd

18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

RF BOARD
J200
1

EXT_MIC

2
3

VS_CS
SW_B+

4

Vddd

5
6

VS_AUDSEL
Det_Aud_Snd

7

Rx_Aud_Rtn

8
9

Tx_Aud_Snd
Tx_Aud_Rtn

10 Flat_Tx_Rtn
11 Opt_Bd_En
12 Rdy/Req
13 Rx_Aud_Snd
14 ON
15 INT_EXT_Vdd
16 Key_Row
17 Key_Col
18 PTT
19 KEY_INT
20 VS_INT
21 RESET
22 LED_EN
23 OFF_BATT_DATA_OUT
24 VS_GAINSEL
25 SrD_Rtn (MISO)
26 SrD_Snd (DATA)
27 R_W
28 LCD_SEL
29 DB0
30 DB1
31 DB2
32 DB3
33 DB4
34 DB5
35 DB6
36 DB7
37 A0
38 SCK_Snd (CLK)
39 VS_RAC
40 Gnd

Universal Connector Flex

6-3

3.0

Universal Connector Flex

3.1

GP328 Plus

2
1

J405

J404
J406
J416

J415

J414

J413

J412

J411

J410

J409

J408

J407

M400

M401

C402

1

20
P403

Front Metal
View From Front Side

Back Metal
View From Back Side

6-4

GP338 Plus/GP338 XLS

J415
J413
M401

1

J411
J409

C402

J407
J405

2

J416
J414
J412
J410
J408
J406
J404

C

8486095Z01_O

M400

2001

3.2

Universal Connector Flex

P403
20

Front Metal
View From Front Side

1

Back Metal
View From Back Side

Schematic for Universal Connector Flex

6-5

4.0

Schematic for Universal Connector Flex

4.1

GP328 Plus
M400
SPKR_20

J403
20 PIN CONN

SPKR_20
1

GND

2

INT_SPK+

3

INT_SPK-

SPKR_20

4

EXT_SPKR+

SPKR_20

5

EXT_SPK-

OPT_B+30

6

DPT_B+

7

EXT_MIC

8

OPT_SEL_2

9

OPT_SEL_1

13 PIN UNIVERSAL CONN
EXT_SPKR+

J404

EXT_SPK-

J405

OPT_B+

J406

EXT_MIC

J407

OPT_SEL_2

J408

OPT_SEL_1

J409

GND

J410

RX_DATA

J411

TX_DATA

J412

10

GND

11

RX_DATA

12

TX_DATA

13
RSSI

J413

RX_AUDIO/TX_AUDIO

J414

BOOT_CTRL

J415

NC

J416

GND

14

RSSI

15

RX_AUDIO/TX_AUDIO

16

BOOT_CTRL

17

NC

18

M401
1

MIC

19

GND

20

GND

2

C402
100pF

4.2

GP338 Plus/GP338 XLS
M400
SPKR_20

SPEAKER
5005679X01

P403
20 PIN CONN

SPKR_20

P403-20 GND
P403-19 INT_SPK+
13 PIN UNIVERSAL CONN
EXT_SPKR+ J404
EXT_SPK- J405
OPT_B+ J406
EXT_MIC J407

P403-18 INT_SPKP403-17 EXT_SPKR+

SPKR_20
spe

P403-16 EXT_SPKP403-15 OPT_B+

OPT_B+30

P403-14 EXT_MIC

OPT_SEL_2 J408

P403-13 OPT_SEL_2

OPT_SEL_1 J409

P403-12 OPT_SEL_1

GND J410

P403-11 GND

RX_DATA J411
TX_DATA J412

P403-10 RX_DATA
P403-9 TX_DATA
P403-8

GND

RSSI J413
RX_AUDIO/TX_AUDIO J414

P403-7

RSSI

P403-6

RX_AUDIO/TX_AUDIO

BOOT_CTRL J415

P403-5

BOOT_CTRL

NC J416

P403-4

NC

P403-3

MIC

P403-2

GND

P403-1

GND

M401
+
E.C.M.
5013920A04

1
2
C402
100pF
2113740A55

6-6

Parts List for Universal Connector Flex

5.0

Parts List for Universal Connector Flex

5.1

GP328 Plus
Reference
Symbol
C402
M400
M401

5.2

Motorola
Part No.
2113740A55
5005679X01
5013920A04

Description
Cap, 100pF
Speaker, 24 ohm
Mic, Mini electrec

GP338 Plus/GP338 XLS
Reference
Symbol
C402
M400
M401

Motorola
Part No.
2113740A55
5086094Z01
5013920A04

Description
Cap, 100pF
Speaker, 20 ohm
Mic, Mini electrec

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