15B18C.Book(15B18CTOC) 6864115B18 D GP300 Basic Service Manual

User Manual: 6864115B18-D GP300 Basic Service Manual

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Professional Radio
GP300 Series
Basic Service Manual
6864115B18-D

Issue: September 2007

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.

iii

SAFETY INFORMATION
Read this information before using the radio.

PRODUCT SAFETY AND RF EXPOSURE FOR PORTABLE TWO-WAY RADIOS.
This document provides information and instructions for the safe and efficient operation of Motorola
Portable Two-Way Radios.

RF Energy Exposure Awareness and Control Information and Operational
Instructions for Occupational Use
Note:This Radio is intended for use in occupational/controlled applications, where users have been
made aware of the potential for exposure and can exercise control over their exposure. This radio
device is NOT authorized for general population, consumer or similar 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 (US markets only)
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 has
a RF Exposure Product Label. Do not remove this RF Exposure Label from the device. 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% talk50% listen and is authorized by the IEEE/ICNIRP 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 cycle (5% talk–5%
listen–90% standby), even though this radio complies with IEEE/ICNIRP occupational exposure limits
at usage 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; 47 CFR 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"

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:
●
●

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 Push-ToTalk (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).
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 IEEE/
ICNIRP 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,
along side the head in the phone mode (TETRA only), in front of the face in the hand held mode,
then ensure the antenna and the radio are kept 2.5 cm (one inch) from the body when transmitting.
Keeping the radio at a proper distance is important because RF exposures decrease with
increasing distance from the antenna.

Hand-held Mode - Operating Instructions
●

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 2.5 cm (one inch) 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.

Phone Mode (TETRA only) - Operating Instructions
●

When placing or receiving a phone call, hold your radio product as you would a wireless telephone.
Speak directly into the microphone.

Approved Accessories
●

Use only Motorola-approved supplied or replacement antennas, batteries, and accessories. Use of
non–
Motorola - approved antennas, batteries and accessories may exceed IEEE/ICNIRP RF exposure
guidelines.
For a list of Motorola-approved antennas, batteries, and other accessories please see your dealer
or local Motorola contact. Your nearest dealer can be found at the following web site:

http://www.motorola.com/cgiss/emea/dealerlocator.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 15 cms (6 inches) 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 15 cms from their pacemaker when the radio is turned ON.
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 you have 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.

vii

OPERATIONAL WARNINGS
Vehicles with an air bag
Refer to vehicle manufacturer's manual prior to installation of electronic equipment to avoid
interference with air bag wiring.

WARNING: 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

WARNING: Turn off your radio prior to entering any area with a potentially explosive
atmosphere, unless it is a radio type especially qualified for use in such areas as
"Intrinsically Safe" (for example, Factory Mutual, CSA, UL, CENELEC or ATEX Approved). 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.

NOTE

The areas with potentially explosive atmospheres referred to above include fuelling areas such as
below decks on boats, fuel or chemical transfer or storage facilities, 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 areas

WARNING: 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.

OPERATIONAL CAUTIONS
Antennas

CAUTION: 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

CAUTION: All batteries can cause property damage and/or bodily injury such as burns if a
conductive material such as jewellery, keys, or beaded chains touch 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.

viii

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, CENELEC or ATEX) 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 or ATEX 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 or ATEX). Radios will not be
upgraded to this capability and labeled once they have been shipped to the field.
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 changeaccessories 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 which 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 or ATEX) 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 or ATEX).
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.

THIS PAGE INTENTIONALLY LEFT BLANK

Table of Contents
Chapter 1

INTRODUCTION

1.0 Scope of Manual.................................................................................................. 1-1
2.0 Warranty and Service Support ............................................................................ 1-1
2.1 Warranty Period and Return Instructions ....................................................... 1-1
2.2 After Warranty Period..................................................................................... 1-1
2.3 European Radio Support Centre (ERSC) ...................................................... 1-2
2.4 Piece Parts..................................................................................................... 1-2
2.5 Technical Support .......................................................................................... 1-3
3.0 Radio Model Information ..................................................................................... 1-4

Chapter 2

INTRINSICALLY SAFE RADIO INFORMATION

1.0 FMRC Approved Equipment................................................................................ 2-1
2.0 Repair of FMRC Approved Products ................................................................... 2-2
2.1 Repair............................................................................................................. 2-2
2.2 Relabelling ..................................................................................................... 2-2
2.3 Do Not Substitute Options or Accessories ..................................................... 2-3

Chapter 3

MAINTENANCE

1.0 Introduction.......................................................................................................... 3-1
2.0 Preventive Maintenance ...................................................................................... 3-1
2.1 Inspection....................................................................................................... 3-1
2.2 Cleaning Procedures...................................................................................... 3-1
3.0 Safe Handling of CMOS and LDMOS Devices.................................................... 3-2
4.0 Repair Procedures and Techniques — General.................................................. 3-3
5.0 Disassembling and Reassembling the Radio — General.................................... 3-3
6.0 Radio Disassembly — Detailed ........................................................................... 3-4
6.1 Front Cover from Chassis Disassembly ......................................................... 3-4
6.2 Chassis Assembly Disassembly .................................................................... 3-7
6.3 Keypad, Display, and Keypad/Option Board Disassembly ............................ 3-8
6.4 Speaker, Microphone, and Universal Connector Flex Disassembly .............. 3-9
6.5 PTT Disassembly ......................................................................................... 3-10
6.6 Control Top Disassembly ............................................................................. 3-11
7.0 Radio Reassembly — Detailed.......................................................................... 3-11
7.1 Control Top Reassembly.............................................................................. 3-11
7.2 PTT Reassembly.......................................................................................... 3-11
7.3 Speaker, Microphone, and Universal Connector Flex Reassembly ............. 3-11
7.4 Keypad, Display, and Keypad Option Board Reassembly ........................... 3-11
7.5 Chassis Assembly Reassembly ................................................................... 3-12
7.6 Chassis and Front Cover Reassembly......................................................... 3-13

xii

8.0 Option Board Installation....................................................................................3-14
8.1 Configuring the Voice Storage Option Board................................................3-15
9.0 Mechanical Views and Parts Lists......................................................................3-17
9.1 GP320/GP340 ..............................................................................................3-17
9.2 GP360/GP380 ..............................................................................................3-19
9.3 GP330...........................................................................................................3-21
10.0 Service Aids .......................................................................................................3-23
11.0 Test Equipment ..................................................................................................3-24
12.0 Programming/Test Cable ...................................................................................3-25

Chapter 4

PERFORMANCE TESTING

1.0 Introduction ..........................................................................................................4-1
2.0 Receiver Performance Tests................................................................................4-1
3.0 Transmitter Performance Tests............................................................................4-2

Chapter 5

RADIO TUNING AND PROGRAMMING

1.0 Introduction ..........................................................................................................5-1
2.0 Global Radio Tuning Setup ..................................................................................5-1
2.1 Initial Test Equipment Setup...........................................................................5-2
3.0 CPS Programming Setup.....................................................................................5-2

Chapter 6
1.0
2.0
3.0
4.0
5.0

MODEL CHART AND TEST SPECIFICATION

Model Chart (UHF)...............................................................................................6-1
Model Chart (VHF) ...............................................................................................6-2
Model Chart (LB)..................................................................................................6-3
Model Chart (300R1)............................................................................................6-4
Specifications - Professional GP300 Series Radios ............................................6-5
5.1 GP320/330/340/360/380.................................................................................6-5

Chapter 7

POWER UP SELF-TEST

1.0 Error Codes..........................................................................................................7-1

Chapter 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 and Return Instructions
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 Resources (Please see page 2 and page 3 in this Chapter). 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 Radio Aftermarket and Accessory Division (AAD) offers a repair service to both
end users and dealers at competitive prices.

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

INTRODUCTION

European Radio Support Centre (ERSC)
The ERSC Customer Information Desk is available through the following service numbers:
Austria:

06 60 75 41

Italy:

16 78 77 387

Belgium:

08 00 72 471

Luxemburg:

08 00 23 27

Denmark:

80 01 55 72

Netherlands:

60 22 45 13

Finland:

08 00 11 49 10

Norway:

80 01 11 15

France:

05 90 30 90

Portugal:

05 05 49 35 70

Germany:

08 00 18 75 240

Spain:

90 09 84 902

Greece:

00 80 04 91 29 020

Sweden:

02 07 94 307

UK:

08 00 96 90 95

Switzerland:

1 55 30 82

Ireland:

18 00 55 50 21

Iceland:

80 08 147

Or dial Customer Care Centre:
Tel: +49 6128 70 2618
Please use these numbers for repair enquiries only

2.4

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 Radio
Aftermarket and Accessory 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 enquiries should be directed to:
Motorola GmbH
European Parts Department
65232 Taunusstein
Germany.

Warranty and Service Support

2.5

1-3

Technical Support
Motorola Product Services is available to assist the dealer/distributors in resolving any malfunctions
which may be encountered.
North Europe - Stephen Woodrow
Telephone: +44 (0) 1256 488 082
Fax: +44 01256 488 080
Email: CSW066@motorola.com

Central and East Europe - Siggy Punzenberger
Telephone: +49 (0) 6128 70 2342
Fax: +49 (0) 6128 95 1096
Email: TFG003@email.mot.com

Russia and Belarus - Oleg Machnev
Telephone: +7 495 785 0150
Fax: +7 495 785 0185
Email: COM005@email.mot.com

Germany - Customer Connect Team
Telephone: +49 (0) 30 6686 1539
Fax: +49 (0) 30 6686 1916
Email: cgiss.emea@europe.mot.com

Middle East and Africa - Wayne Holmes
Telephone: +27 11 800 7922
Fax: +27 11 800 7923
Email: radiosupport.za@motorola.com

Italy - Ugo Gentile
Telephone: +39 0 2822 0325
Fax: +39 0 2822 0334
Email: C13864@email.mot.com

France - Armand Roy
Telephone: +33 1 6935 7868
Fax: +33 1 6935 7808
Email: armand.roy@motorola.com

France - Laurent Irrmann
Telephone: +33 1 6935 7866
Fax: +33 1 6935 7808
Email: laurent.irrmann@motorola.com

NOTE

Only Motorola Service Centers or Approved Motorola Service Dealers can perform
these functions. Any tampering by non-authorised Motorola Service Centers voids the
warranty of your radio. To find out more about Motorola and its approved Service
Centers, please visit
http://www.motorola.com/governmentandenterprise/public/functions/home/home.aspx

1-4

3.0

INTRODUCTION

Radio Model Information
The model number and serial number are located on a label attached to the back of your radio. You
can determine the RF output power, frequency band, protocols, and physical packages. The
example below shows one portable radio model number and its specific characteristics.
Table 1-1 Radio Model Number (Example: MDH25KDC9AA3AE)

MD = Motorola Internal Use

H = Portable

Type of Model
Unit
Series
25

Freq.
Band

Power
Level

Physical
Packages

Channel
Spacing

Protocol

K
VHF
(136174MHz)

D
3-5W

C
GP140,
GP320,
GP330,
GP240,
GP340,
GP540.
GP640.

9
Programmable

AA
Conventional
MDC

R
UHF 1
(403470MHz)

S
UHF 2
(450527MHz)

Feature
Level
O
GP320

2
GP330

E
5-6W

H
GP280,
GP380,
GP580,
GP680

6
AN
Non
Conventional
Programm
5 Tone
able

3
GP140,
GP240
GP340,
GP540
GP640.

T
C
UHF 1 NB 2-2.5W
(450470MHz)

N
GP1280

CK
MPT

5
GP360

B
LB1
29-42MHz

F
GP360

PW
MPT/5T

6
GP280
GP380,
GP580
GP680

C
LB2
35-50MHz

FB
Privacy Plus

8
GP1280

E
300R1
(300350MHz)

FC
SmartZone

U
800 MHz
(806870MHz)

Model
Model
Revision Package
A

Chapter 2
INTRINSICALLY SAFE RADIO INFORMATION
1.0

FMRC Approved Equipment
Anyone intending to use a radio in a location where hazardous concentrations of flammable material
exist (hazardous atmosphere) is advised to become familiar with the subject of intrinsic safety and
with the National Electric Code NFPA 70 (National Fire Protection Association) Article 500
(hazardous [classified] locations).
An Approval Guide, issued by Factory Mutual Research Corporation (FMRC), lists manufacturers
and the products approved by FMRC for use in such locations. FMRC has also issued a voluntary
approval standard for repair service (“Class Number 3605”).
FMRC Approval labels are attached to the radio to identify the unit as being FM
Approved for specified hazardous atmospheres. This label specifies the hazardous
FM
Class/Division/Group along with the part number of the battery that must be used.
APPROVED
Depending on the design of the portable unit, this FM label can be found on the
back of the radio housing or the bottom of the radio housing.Their Approval mark is shown above.

WARNING: Do not operate radio communications equipment in a hazardous atmosphere
unless it is a type especially qualified (e.g. FMRC Approved) for such use. An explosion or
fire may result.
WARNING: Do not operate the FMRC Approved Product in a hazardous atmosphere if it has
been physically damaged (e.g. cracked housing). An explosion or fire may result.
WARNING: 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.
WARNING: 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.
WARNING: Do not operate the FMRC Approved Product unit in a hazardous location with the
accessory contacts exposed. Keep the connector cover in place when accessories are not
used.
WARNING: Turn radio off before removing or installing a battery or accessory.
WARNING: Do not disassemble the FMRC Approved Product unit in any way that exposes
the internal electrical circuits of the unit.
Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability
and FM Approval labeling. Radios will not be “upgraded” to this capability and labeled in the field.
A modification changes the unit’s hardware from its original design configuration. Modifications can
only be done by the original product manufacturer at one of its FMRC audited manufacturing
facilities.

WARNING: Failure to use an FMRC Approved Product unit with an FMRC Approved battery
or FMRC Approved accessories specifically approved for that product may result in the
dangerously unsafe condition of an unapproved radio combination being used in a
hazardous location.
Unauthorized or incorrect modification of an FMRC Approved Product unit will negate the Approval
rating of the product.

2-2

INTRINSICALLY SAFE RADIO INFORMATION

2.0

Repair of FMRC Approved Products
REPAIRS FOR MOTOROLA FMRC APPROVED PRODUCTS ARE THE RESPONSIBILITY OF
THE USER
You should not repair or relabel any Motorola manufactured communication equipment bearing the
FMRC Approval label (“FMRC Approved Product”) unless you are familiar with the current FMRC
Approval standard for repairs and service (“Class Number 3605”).
You may want to consider using a repair facility that operates under 3605 repair service approval.

WARNING: Incorrect repair or relabelling of any FMRC Approved Product unit could
adversely affect the Approval rating of the unit.
WARNING: Use of a radio that is not intrinsically safe in a hazardous atmosphere could
result in serious injury or death.
FMRC’s Approval Standard Class Number 3605 is subject to change at any time without notice to
you, so you may want to obtain a current copy of 3605 from FMRC. Per the December, 1994
publication of 3605, some key definitions and service requirements are as follows:

2.1

Repair
A repair constitutes something done internally to the unit that would bring it back to its original
condition Approved by FMRC. A repair should be done in an FMRC Approved facility.
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 which exposes the internal electrical
circuits of the unit. You do not have to be an FMRC Approved Repair Facility to perform these
actions.

2.2

Relabelling
The repair facility shall have a method by which the replacement of FMRC Approval labels are
controlled to ensure that any relabelling is limited to units that were originally shipped from the
Manufacturer with an FM Approval label in place. FMRC Approval labels shall not be stocked by the
repair facility. An FMRC Approval label shall be ordered from the original manufacturer as needed to
repair a specific unit. Replacement labels may be obtained and applied by the repair facility
providing satisfactory evidence that the unit being relabelled was originally an FMRC Approved unit.
Verification may include, but is not limited to: a unit with a damaged Approval label, a unit with a
defective housing displaying an Approval label, or a customer invoice indicating the serial number of
the unit and purchase of an FMRC Approved model.

Repair of FMRC Approved Products

2.3

2-3

Do Not Substitute Options or Accessories
The Motorola communications equipment certified by Factory Mutual is tested as a system and
consists of the FM Approved portable, FM Approved battery, and FM 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 in the FM Approval
guide published by FMRC, or in the product FM Supplement. This FM Supplement is shipped with
FM Approved radio and battery combination from the manufacturer. The Approval guide, or the
Approval standard Class Number 3605 document for repairs and service, can be ordered directly
through Factory Mutual Research Corporation located in Norwood, Massachusetts.

2-4

INTRINSICALLY SAFE RADIO INFORMATION

Chapter 3
MAINTENANCE
1.0

Introduction
This chapter provides details about the following:
❏

Preventive maintenance (inspection and cleaning)

❏

Safe handling of CMOS and LDMOS devices

❏

Disassembly and reassembly of the radio

❏

Repair procedures and techniques

❥

Installation of Option Boards

NOTE The Servicing of your Intrinsically Safe Radios

In order to maintain compliance, radios that are FM Approved to intrinsically safe standards
MUST be repaired at FM audited service centers. See Paragraph 2.5 (Technical Support)
on page 1-3 for more information.

2.0

Preventive Maintenance
The radios do not require a scheduled preventive maintenance program; however, periodic visual
inspection and cleaning is recommended.

2.1

Inspection
Check that the external surfaces of the radio are clean, and that all external controls and switches
are functional. It is not recommended to inspect the interior electronic circuitry.

2.2

Cleaning Procedures
The following procedures describe the recommended cleaning agents and the methods to be used
when cleaning the external and internal surfaces of the radio. External surfaces include the front
cover, housing assembly and battery case. These surfaces should be cleaned whenever a periodic
visual inspection reveals the presence of smudges, grease, and/or grime.
NOTE Internal surfaces should be cleaned only when the radio is disassembled for service or

repair.
The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild
dishwashing detergent in water. The only factory recommended liquid for cleaning the printed circuit
boards and their components is isopropyl alcohol (70% by volume).

CAUTION: The effects of certain chemicals and their vapors can have harmful results on
certain plastics. Avoid using aerosol sprays, tuner cleaners, and other chemicals.
Cleaning External Plastic Surfaces
Apply the 0.5% detergent-water solution sparingly with a stiff, non-metallic, short-bristled brush to
work all loose dirt away from the radio. Use a soft, absorbent, lintless cloth or tissue to remove the
solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks,
or crevices.

3-2

MAINTENANCE

Cleaning Internal Circuit Boards and Components
Isopropyl alcohol (70%) may be applied with a stiff, non-metallic, short-bristled brush to dislodge
embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the
dislodged material out and away from the inside of the radio. Make sure that controls or tunable
components are not soaked with alcohol. Do not use high-pressure air to hasten the drying process
since this could cause the liquid to collect in unwanted places. After completing of the cleaning
process, use a soft, absorbent, lintless cloth to dry the area. Do not brush or apply any isopropyl
alcohol to the frame, front cover, or back cover.
NOTE Always use a fresh supply of alcohol and a clean container to prevent contamination by

dissolved material (from previous usage).

3.0

Safe Handling of CMOS and LDMOS Devices
Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios, and
are susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting
in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent
device damage during disassembly, troubleshooting, and repair.
Handling precautions are mandatory for CMOS circuits and are especially important in low humidity
conditions. DO NOT attempt to disassemble the radio without first referring to the following
CAUTION statement.

CAUTION: This radio contains static-sensitive devices. Do not open the radio unless you are
properly grounded. Take the following precautions when working on this unit:
❏

Store and transport all CMOS devices in conductive material so that all exposed
leads are shorted together. Do not insert CMOS devices into conventional plastic
“snow” trays used for storage and transportation of other semiconductor devices.

❏

Ground the working surface of the service bench to protect the CMOS device. We
recommend using the Motorola Static Protection Assembly (part number
0180386A82), which includes a wrist strap, two ground cords, a table mat, and a
floor mat.

❏

Wear a conductive wrist strap in series with a 100k resistor to ground. (Replacement
wrist straps that connect to the bench top covering are Motorola part number
RSX4015.)

❏

Do not wear nylon clothing while handling CMOS devices.

❏

Do not insert or remove CMOS devices with power applied. Check all power
supplies used for testing CMOS devices to be certain that there are no voltage
transients present.

❏

When straightening CMOS pins, provide ground straps for the apparatus used.

❏

When soldering, use a grounded soldering iron.

❏

If at all possible, handle CMOS devices by the package and not by the leads. Prior
to touching the unit, touch an electrical ground to remove any static charge that you
may have accumulated. The package and substrate may be electrically common. If
so, the reaction of a discharge to the case would cause the same damage as
touching the leads.

Repair Procedures and Techniques — General

4.0

3-3

Repair Procedures and Techniques — General
NOTE

Environmentally Preferred Products (EPP) (refer to the marking on the printed circuit
boards) were developed and assembled using environmentally preferred components
and solder assembly techniques to comply with the European Union’s ROHS and WEEE
directives (Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
and Restriction of Hazardous Subtances (ROHS) Directive 2002/95/EC). To maintain
product compliance and reliability, use only the Motorola specified parts in this manual.
For the identification of lead (Pb) free assemblies, all EPP products will carry the EPP
Marking, shown below, on the printed circuit board (PCB). This marking provides information to those performing assembly, servicing and recycling operation on this product,
adhering to the JEDEC standard #97. The EPP Marking takes the form of a label or
marking on the PCB.

Parts Replacement and Substitution
When damaged parts are replaced, identical parts should be used. If the identical replacement part
is not locally available, check the parts list for the proper Motorola part number and order the part
from the nearest Motorola Communications parts centre listed in the “Piece Parts” section of this
manual.
Rigid Circuit Boards
This family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not
accessible, some special considerations are required when soldering and unsoldering components.
The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, exercise
care to avoid pulling the plated circuit out of the hole.
When soldering near the 20-pin and 40-pin connectors:
❏

Avoid accidentally getting solder in the connector.

❏

Be careful not to form solder bridges between the connector pins.

❏

Examine your work closely for shorts due to solder bridges.

Flexible Circuits
The flexible circuits are made from a different material than the rigid boards, and require different
soldering techniques. Excessive prolonged heat on a flexible circuit can damage the material.
Therefore, avoid excessive heat and excessive bending.
For parts replacement, use the ST-1087 Temperature-Controlled Solder Station with a 600-700
degree tip, and use small diameter solder such as ST-633. The smaller size solder will melt faster
and require less heat to be applied to the circuit.
To replace a component on a flexible circuit:
1.

Grasp with seizers (hemostats) the edge of the flexible circuit near the part to be removed.

3-4

MAINTENANCE

Pull gently.

Apply the tip of the soldering iron to the component connections while pulling with the seizers.

NOTE Do not attempt to puddle-out components. Prolonged application of heat may damage the

flexible circuit.

5.0

Disassembling and Reassembling the Radio — General
Since these radios may be disassembled and reassembled with the use of only four (board to
casting) screws, it is important to pay particular attention to the snaps and tabs, and how parts align
with each other.
The following tools are required for disassembling the radio:
❏

Small flat blade screwdriver

❏

penknife-size screwdriver

❏

TORX™ T6 screwdriver

❏

Chassis opener (6680702Z01)

If a unit requires more complete testing or service than is customarily performed at the basic level,
send this unit to a Motorola Authorized Service Centre. (See Chapter 1 for a list of authorized
service centres.)
The following disassembly procedures should be performed only if necessary:
Chassis Assembly Disassembly (Paragraph 6.2)
Keypad, Display, and Keypad/Option Board Disassembly (Paragraph 6.3)
Speaker, Microphone, and Universal Connector Flex Disassembly (Paragraph 6.4)
PTT Disassembly (Paragraph 6.5)
Control Top Disassembly (Paragraph 6.7)

6.0

Radio Disassembly — Detailed

6.1

Front Cover from Chassis Disassembly
1.

Turn off the radio.

Remove the battery:
a.

Pull down on the two battery-release buttons.

With the buttons pulled down, the top of the battery will fall from the radio.

Radio Disassembly — Detailed

3-5

Remove the battery from the radio.
Battery Release
Buttons

Figure 3-1 Battery Removal
3.

Remove the antenna.

Pull the volume and channel selector knobs off of their shafts.

Knobs

Figure 3-2 Knob Removal
NOTE Both knobs slide on and off. However, they are supposed to fit very tightly on their shafts.

Separate the chassis from the internal electronics front cover assembly as follows:
a.

Insert a small, flat-blade screwdriver, or similar instrument, in between the thin retaining
wall and the chassis at the bottom of the radio. Do not mar the O-ring sealing area on the
housing.

3-6

MAINTENANCE

Slowly pry the bottom of the chassis from the cover by pushing the small flat-blade
screwdriver down, or chassis opener (6680702Z01) and rotating the handle of the tool
over and behind the base of the radio. This prying action forces the thin inner plastic wall
toward the base of the radio, releasing the two chassis base tabs.

Radio Chassis

Figure 3-3 Chassis Removal

CAUTION: Marring the front cover O-ring sealing area will prevent the radio from
sealing properly.
NOTE Flexible ribbon circuits (flexes) connecting the front cover assembly and the chassis

prevent you from completely separating the two units. Display radios and radios with
option boards have two flexes.
6.

Lay the chassis down. Rotate the front cover backward and slightly away from the chassis.

Lift the latches on the main circuit board to release the flexes from their connectors.

Latches

Flex Connectors

Figure 3-4 Unlatch Flex Connectors

Radio Disassembly — Detailed

6.2

3-7

Chassis Assembly Disassembly
1.

Use a TORX™ screwdriver with a T6 head to remove the four screws holding the main board
to the chassis.

Compliant
Ground
Contact
Main Board
Radio Chassis

O-ring
Retaining
Features

Figure 3-5 Remove Main Board from Chassis
2.

Lift the main board from the chassis (See Figure 3-5).

CAUTION: Refer to the CMOS CAUTION paragraph on page 2 before removing the main
board. Be sure to use ESD protection when handling circuit boards.
3.
4.
5.

Remove the four small O-ring retainers from their slots in the chassis. Note the alignment of
the retainers for reassembly.
Remove the O-ring.
Slide off the ground contact from the top corner boss of the radio chassis.

3-8

6.3

MAINTENANCE

Keypad, Display, and Keypad/Option Board Disassembly
1.

If the disassembly of the keypad, the keypad printed circuit board, or the display is required,
lift the microphone flex circuit up, and carefully remove the microphone and its boot from the
front cover pocket. (See Figure 3-6.)

Lay this flex circuit to one side.

To remove the keypad retainer shield:
a.

Insert the tip of a “penknife size,” flat blade screwdriver in the opening at the end of the
keypad retainer arm tab.

Pry the tab away from the side of the front cover until it moves past the ledges on the
side wall. Duplicate this procedure for each of the four retainer arm tabs.
Speaker-Microphone
Flex Circuit Tail

Flat Blade
Screwdriver

Keypad Retainer
Arm Tabs (4)

Retainer
Top Hooks

Retainer

GP360/380

Figure 3-6 Remove Retainer

Note that the two “top hooks” are still held underneath the front cover—right below the
speaker. Lift the keypad retainer out of the front cover; then, lift and pivot the two hooks out of
the front cover.

If disassembly involves the removal of the display module, disconnect the display flex from
the keypad option board connector by lifting the latch on the connector. (This is similar to the
process for releasing the flexes.)

The display module is attached to the front cover with a double-sided adhesive pad. Carefully
pull up on the display module, using a small screwdriver, if necessary, and remove it from the
front cover. Use a new piece of double-sided adhesive to re-mount the display to the cover.

CAUTION: Take care not to damage the display. Do not cut, bend, or pinch the heat seal.
Display modules contain CMOS devices. Be sure to use ESD protection.

Radio Disassembly — Detailed

3-9

The keypad/option board, and the keypad, can be removed without the use of tools.

Retainer

Display Module
2
Keypad/Option Board

3
Keypad

Radio Body

GP360/380

Figure 3-7 Removing the Keypad Retainer and Other Boards from the Radio Body
NOTE At this point, the Option Board Installation Procedure should be performed, if necessary.

6.4

Speaker, Microphone, and Universal Connector Flex Disassembly
1.

Turn the screw at the bottom of the dustcover counterclockwise with your fingers. Lift the
dustcover out of its pocket.

NOTE The dustcover must be removed to remove the speaker-microphone assembly flex circuit.

The speaker is held in place with a two-legged retainer bracket. The bracket legs are
secured by the front cover slots. Be careful not to damage the speaker when removing the
retainer bracket.
2.

Using a screwdriver, push down on the portion of the speaker retainer bracket pointing toward
the bottom of the radio. Then, remove the retainer by slightly pushing it toward the top of the
radio until you slide it past the front cover slot.

Pull the rubber microphone boot from its seated position. Unless you are replacing the microphone, leave it in the boot.

NOTE The speaker-microphone assembly flex circuit goes through the front cover wall to the out-

side wall. To replace this assembly, you must peel-off the universal connector escutcheon
label. The existing escutcheon cannot be reassembled; a new part must be used. (See item
number 10 [GP360/380] on the exploded view drawing.)
4.

Peel-off the universal connector flex circuit escutcheon (label).

Pry the flex circuit (adhesive held) backer board away from the front cover, and remove the
universal connector tail of the speaker-microphone assembly through its opening in the front
cover.

3-10

MAINTENANCE

Notch In
Speaker @ 12:00
Speaker

Speaker Orientation
Tab @ 12:00

Universal Connector
Tail
Microphone Boot
Microphone

Speaker Microphone
Flex Circuit Assembly

6.5

Figure 3-8 Removal Speaker-Microphone Assembly
After the universal connector tail of the speaker-microphone assembly is removed, the
assembly can be completely removed. If it is necessary to replace the speaker or
microphone, or both, do it while the flex circuit is removed from the front cover. When
reassembling the microphone in its boot, make sure the microphone port faces the round hole
in the bottom of the boot.

PTT Disassembly
1.

If required, the PTT bezel, and the PTT seal assembly, can be disassembled using a small
screwdriver, as follows:
PTT Bezel

“T” Shaped Retainer Pad

Tab
Tab

PTT Seal

Figure 3-9 PTT Removal
a.

Pry back the T-tab found inside the front cover (in between the four buttons on the PTT
assembly).

Remove the PTT bezel by slightly bowing it until the top and bottom tabs are released
from the slots in the front cover.

The PTT seal can be easily lifted from the bezel without the use of tools.

Radio Reassembly — Detailed

6.6

Control Top Disassembly
1.

To remove the control top assembly, place a screwdriver next to the antenna boss, and pry it
against the control top escutcheon. This will lift the control top escutcheon away from its
double-sided adhesive. Grasp the double-sided adhesive near the volume potentiometer, and
lift it away.

Remove the control top seal, emergency button, and transmit light pipe.

7.0

Radio Reassembly — Detailed

7.1

Control Top Reassembly

7.2

3-11

Replace transmit light pipe and control top seal.

Place a new control top escutcheon adhesive against the front cover. Press the control top
escutcheon tightly against the adhesive.

Put the PTT seal in the PTT bezel.

PTT Reassembly
1.

Place the bezel top tab in the top slot inside the front cover PTT opening. Slightly bow the
bezel so that the bottom tab can fall inside the bottom slot.

Press the PTT assembly against the front cover opening.

NOTE Look inside the front cover to make sure the T-tab is fully engaged with the front cover. If

necessary, press the T-tab toward the top of the radio until it becomes fully engaged.

7.3

7.4

Speaker, Microphone, and Universal Connector Flex Reassembly
1.

Feed the universal connector tail of the speaker-microphone flex assembly through the opening in the side wall of the front cover.

Peel-off the adhesive liner on the back of the universal connector tail of the flex circuit. Attach
the flex tail to the front cover using the guide pins for correct alignment.

Replace the universal connector escutcheon. Make sure that all the connector openings align
with the gold pads on the flex circuit.

Align the notch in the speaker at the twelve o’clock position with the tab on the front cover.
(See Figure 3-8.)

Place the speaker retainer bracket into the hole on the top of the front cover, and bend the
retainer down to fit underneath the boss below the speaker.

Keypad, Display, and Keypad Option Board Reassembly
1.

If you are replacing the display, use a new double-sided adhesive display pad (item number
17 [GP360/380] on the exploded view diagram).

Replace the keypad, and the keypad/option board. Make sure the display module flex tail is
connected correctly to the connector on the keypad/option board.

Insert the “top hooks” of the keypad retainer into the slots below the speaker (above the
display) in the front cover. Snap all of the retainer arm tabs in place in the front cover.

NOTE Pull the speaker-microphone flex circuit out of harm’s way during reassembly.

3-12

MAINTENANCE

Re-insert the microphone and boot into the pocket in the front cover.

Lay the speaker-microphone flex on top of keypad/option board retainer.

Catches

Retainer

GP360/380

Figure 3-10 Lock retainer catches to the radio’s body

7.5

Chassis Assembly Reassembly
1.

Slide on the ground contact (if necessary) on the top corner boss of the chassis.

Replace the O-ring. The tabs on the O-ring should reach around the chassis and point down.

Stretch the O-ring to place it into the retaining pocket at the bottom end of the chassis.

NOTE When properly assembled, the retainers on the O-ring should align with the slots on the

chassis. If this is not the case, remove and replace the O-ring until it is aligned with the
chassis and completely seated in place around the perimeter.
4.

Ensure that the antenna nut insulator is correctly replaced by pushing it all the way to the top
of the antenna nut.

Replace the battery contact seal (if necessary) surrounding the battery contact.

Place the main circuit board straight down on top of the chassis.

NOTE Be sure the battery contact seal protrudes through the chassis and is not pinched under the

chassis.
7.

Use the T6 TORX screwdriver to fasten the screws holding the main board to the chassis.

Radio Reassembly — Detailed

7.6

3-13

Chassis and Front Cover Reassembly
1.

Align the chassis assembly end-to-end with the front cover assembly.

Insert the tails of the flex circuits into their respective connectors at the bottom of the front
cover.

Push down the latches on the connectors to hold the flex circuits to the main board.

Slide the volume potentiometer and frequency switch shafts into their respective holes in the
front cover.

Push the chassis assembly completely into the top of the front cover until it settles in place.

Be sure the O-ring is properly seated.

Snap the bottom of the chassis into the front cover.

Reassemble the knobs, dust cover, antenna, and battery.

Radio Chassis
GP320/340/360/380
Figure 3-11 Fastening the Chassis

3-14

Option Board Installation
1.

With the keypad retainer removed, the keypad backer board can be removed without the use
of tools.

Remove the jumper flex from the connector on the keypad board. Notice the orientation of the
flex to the connector. Arrows on the jumper flex point to the correct way of inserting the flex
into the connector.

Discard the keypad backer board.

The “breakaway” tab at the top of all option boards contains an extra row of keys and is used
to accommodate other radio models.

Break-off and discard the option board tab, taking care not to damage the option board. Trim
any tab fragments that may remain on the option board.

Reassemble the option board to the front cover assembly.

Retainer

Jumper Flex

Keypad/Option
Board

TO KP

8.0

MAINTENANCE

Display Flex

Figure 3-12 Changing the Keypad/Option Board
7.

Insert the display flex circuit into the connector on the option board.

Insert the jumper flex circuit into the connector on the option board. Notice the orientation of
the flex circuit. Arrows on the jumper flex point to the correct way of inserting the flex into the
connector.

Replace the retainer by placing the two top hooks into the slots below the speaker in the front
cover; then, pivot the retainer into the front cover. Ensure that all four tab arms snap correctly
into the front cover.

10. With the keypad option board, display, and retainer correctly in place, the front cover assembly can now be reassembled as described in Paragraph 7.6 (Chassis and Front Cover Reassembly).

Option Board Installation

8.1

3-15

Configuring the Voice Storage Option Board
1.

Connect the radio to your computer following the instructions outlined in CPS Programming
Setup on page 4.3.

Start up the CPS, and read the radio’s codeplug.

Choose Miscellaneous from the Per Radio drop-down menu.

In the Miscellaneous dialog box, click on the Global and choose Voice Storage from the
Option Board Type.

Choose Signalling Definition from the Per Radio drop-down menu. In the Signalling Definition dialog box, click on the Voice Storage check box to activate voice storage.

3-16

MAINTENANCE

Choose Menu Item from the Per Radio drop-down menu. In the Menu Item dialog box, click
on the Voice Storage check box, followed by any other desired Voice Storage related check
boxes.

Choose Button Definition from the Per Radio drop-down menu. In the Button Definition dialog box, configure your radio’s relevant programmable buttons to activate the desired Voice
Storage function.

Choose Per Personality from the Per Personality drop-down menu. Click on the Option
Board check box.

Mechanical Views and Parts Lists

9.0

Mechanical Views and Parts Lists

9.1

GP320/GP340

Figure 3-13 Radio Exploded Mechanical View (GP320/GP340)

3-17

3-18

Item

Mechanical Views and Parts Lists

Motorola
Part
Number

Description

Item

Motorola
Part
Number

Description

See Chapter 6

Antenna

5015027H01

Microphone

3680529Z01

Knob, Volume

7586477Z01

Poron Pad

3680530Z02

Knob, Frequency

1380525Z01
1380525Z02

Escutcheon, Top - GP340
Escutcheon, Top - GP320

8415169H01
8415169H02*

Flex, UC

1405307X01

Insulator kapton

3385681Z02

Escutcheon, Label

4286410Z01

Retainer, Speaker

3280533Z05
3280533Z04

Seal, Control Top - GP340
Seal, Control Top - GP320

2113944C81*

Capacitor. 24pF

6180527Z01

Litepipe, Tx

2113740A41
2113944F54

Capacitor, 33pF - non EPP
Cpacitor 33pF - EPP

1364279B02
1364279B03

Front, label - GP320
Front, label - GP340

7580671Z01

Pad (Flexible circuit)

3916290H01** Contact, Pad, Foam - GP340

1586059A01

Dust Cover, Universal
Connector

7505870Z05**

Pad conductive foam - GP340

1386058A01

Escutcheon, Universal Flex

7580671Z03

Pad (Flexible Flex) - GP320

1586335Z03

Front Cover, Basic

0304726J05

Screw

1580666Z04

Front Cover with Keypad
(DTMF)

7586477Z01*

Poron Pad - GP340

7585734Z01*

Pad (VCO Shield)

1580666Z06

Front Cover - GP320

See Chapter 6

Not Field
Replaceable

Escutcheon, FM

Back Cover Kit incl chassis
main board

3980667Z04

Contact finger (x3)

7580532Z01
7580532Z08

Keypad, Side Control -GP340
Keypad, Side Control -GP320

1485673Z01

Insulator, Antenna

1386324Z01
1380528Z03

Bezel, Side Control - GP340
Bezel, Side Control - GP320

3280534Z02

Seal, Contact

7580556Z02

Pad, Thermal

4285672Z01

Retaining clip - GP320

3286406Z01

Gasket O-Ring

1471531L01

Insulator

3980698Z01

Contact, Ground, Compliant,
VHF

1485924Z01

Insulator board - GP340
43

7586481Z01

Pad retainer - GP340

2780518Z06
2771798M01*

Chassis

4286266Z01

Retainer, Keypad PCB GP340

See Chapter 6

Battery

HLN9714

Beltclip

3586057A03

Felt Speaker

1480577C01

Boot, Microphone

* For UHF Band 1 only

5085738Z10
5085738Z03

Speaker - EPP
Speaker - non EPP

** For UHF and VHF

Mechanical Views and Parts Lists

9.2

GP360/GP380

Figure 3-14 Radio Exploded Mechanical View (GP360/GP380)

3-19

3-20

Item

Mechanical Views and Parts Lists

Motorola
Part
Number

Description

See Chapter 6

Antenna

3680529Z01

Knob, Volume

3680530Z02

Knob, Frequency

1380525Z03

Escutcheon, Top

3385681Z02

Escutcheon, Label

3280533Z05

Seal, Control Top

6180527Z01

Litepipe, Tx

1364279B04
1364279B05

Front, label GP360
Front, label GP380

1586059A01

Dust Cover, Universal
Connector

1386058A01

Escutcheon, Universal Flex

1586335Z0111 Front cover, GP360
Front Cover GP380
586335Z02
1580666Z04
Front Cover with Keypad
(DTMF)

Item
27

Motorola
Part
Number

Description

8415169H01
8415169H02*

Flex, UC

1405307X01

Insulator kapton

2113944C81*

Capacitor, 24pF

3113944F54

Capacitor, 33pF

4286410Z01

Retainer, Speaker

1480503Z01

Boot, Backup Battery

7580671Z01

Pad (Flexible circuit)

3916290H01** Contact, Pad, Foam - GP340

7586477Z01*

Poron Pad

7505870Z05**

Pad conductive foam

6062884G01

Backup Battery

0304726J05

Screw

7585734Z01*

Pad (VCO Shield)

See Chapter 6

Back Cover Kit incl chassis
main board

8415157H01

Flex, Keypad/Controller

3980667Z04

Contact finger (x3)

1485673Z01

Insulator, Antenna

7580556Z02

Pad Thermal

3280534Z02

Seal, Contact

Not Field
Replaceable

Escutcheon, FM

7580532Z08

Keypad, Side Control

1386324Z01

Bezel, Side Control

1471531L01

Insulator

7586265Z06
7586265Z05

Keypad - GP360
Keypad - GP380

0104007J99

Keypad Board Assembly

3286406Z01

Gasket O-Ring

7580540Z02

Pad, display

3980698Z01

5104949J19

LCD module

Contact, Ground, Compliant,
VHF

7580637Z01

Pad, LCD Back

2780518Z06
2771798M01*

Chassis

4286266Z01

Retainer, Keypad PCB

See Chapter 6

Battery

3586057A03

Felt Speaker

HLN9714

Beltclip

1480577C01

Boot, Microphone

5085738Z10

Speaker

5015027H01

Microphone

7586477Z01

Poron Pad

* For UHF Band 1 only
** For UHF and VHF

Mechanical Views and Parts Lists

9.3

GP330

Figure 3-15 Radio Exploded Mechanical View (GP330)

3-21

3-22

Item

Mechanical Views and Parts Lists

Motorola
Part
Number

Description

Item

Motorola
Part
Number

Description

See Chapter 6

Antenna

0304726J05

Screw, Torx T-6 (4X)

3680529Z01

Volume Knob

0104018J51

RF Board

3680530Z02

Frequency Knob

1485673Z01

Insulator, Antenna

1380525Z06

Top Escutcheon

3980667Z04

Contact Finger (x3)

3385681Z02

Escutcheon Label

7580556Z02

Pad Thermal

3280533Z06

Control Top Seal

3280534Z02

Battery Contact Seal

6180527Z01

Lightpipe

3286406Z01

Gasket O-Ring

3380660Z12

Front, Label

3980698Z01

Contact, ground, VHF

1586059A01

Dust Cover, Universal
Connector

2780518Z06
2771798M01*

Chassis

See Chapter 6

Battery

HLN9714

Beltclip

1386058A01

Escutcheon, Universal
Connector

1380528Z03

Bezel, Side Control

7580532Z03

Keypad, Side Control

1580666Z06

Cover, Front Assembly

4285672Z01

Clip, Bezel

3586057A03

Felt, Speaker

1471531L01

Insulator

1480577C01

Boot, Microphone

5085738Z10

Speaker

5015027H01

Mini Electret,
Microphone

2113944F54

Capacitor, 33pF

8415169H01
8415169H02*

Flex, Universal
Connector

7586477Z01

Pad, Poron

2113944C81*

Capacitor, 24pF

4286410Z01

Retainer, Speaker

1405307X01

Insulator kapton

3916290H01

Foam, Conductive

7580671Z01

Pad (Flexible circuit)

7580671Z03

Pad (Flexible Flex)

* For UHF Band 1 only.

Service Aids

10.0

3-23

Service Aids
Table 3-1 lists service aids recommended for working on the GP300 Series Radios. While all of
these items are available from Motorola, most are standard shop equipment items, and any
equivalent item capable of the same performance may be substituted for the item listed.
Table 3-1 Service Aids

Motorola Part
No.

Description

Application

RLN4460_

Portable Test Set

Enables connection to the audio/accessory
jack. Allows switching for radio testing.

RKN4075_

Ribless Programming Cable

Connects radio to Computer.

RKN4074_

Programming Cable/Test
Cable

Connects radio to RIB (RLN4008_).

RLN4008_

Radio Interface Box (RIB)

Enables communications between the radio
and the computer’s serial communications
adapter.

HLN9756_

BNC Adaptor

Adapts radio’s antenna port to BNC cabling
of test equipment.

HKN9743_

MAP27 Cable

Connects radio to computer for MAP27
applications in MPT requirements.

HLN9742_

Flash Upgrade Adapter

Provides connections to the computer or RIB
programming /test cable

0180305G54

Shop Battery Eliminator

Interconnects radio to power supply.

8180384F66

Bench Test Housing Eliminator
for long housing.

Provides for troubleshooting of the radio
when the housing is removed.

8180384F68

Bench Test Housing Eliminator
for short housing.

Provides for troubleshooting of the radio
when the housing is removed.

RLN4510

Battery Eliminator 7.5V

Interconnects radio to power supply.

EPN4040

Wall-Mounted Power Supply

Used to supply power to the RIB (UK).

EPN4041

Wall-Mounted Power Supply

Used to supply power to the RIB (Euro)

3080369B71 or
3080369B72

Computer Interface Cable

Use B72 for the IBM PC AT. All other IBM
models use B71. Connects the computer’s
serial communications adapter to the RIB.
(RLN4008_)

3-24

MAINTENANCE

11.0 Test Equipment
Table 3-2 lists test equipment required to service the GP300 Series Radios and other two-way radios.
Table 3-2 Recommended Test Equipment

Motorola Part
No.

Description

Characteristics

Application

R2600_NT

Comms System
Analyzer
(non MPT)

This monitor will
substitute for items with
an asterisk *

Frequency/deviation meter
and signal generator for
wide-range troubleshooting
and alignment

R2680_NT
to be ordered
with
RLN1022_ (H/W)
RLN1023_ (S/W)

Comms System
Analyzer
(MPT1327)

This monitor will
substitute for items with
an asterisk *

Frequency/deviation meter
and signal generator for
wide-range troubleshooting
and alignment

*R1072_

Digital Multimeter

*R1377_

AC Voltmeter

100 µV to 300 V,
5Hz-1MHz, 10 Megohm
input impedance

Audio voltage
measurements

WADN4133_

Delay
Oscilloscope

2 Channel 40 MHz
bandwidth,
5 mV/cm - 20 V/cm

Waveform measurements

R1440_

Wattmeter,

Transmitter power output
measurements

0180305F22
0180305F30
0180305F39
RLN4610_

Plug-in Element
Plug-in Element
Plug-in Element
Carry case

Thruline 50-Ohm, ±5%
accuracy
10W, 50 - 125 MHz
10W, 100 - 250 MHz
10W, 200 - 500 MHz
Wattmeter and
6 elements

*T1013_

RF Dummy Load

S1339_

RF Millivolt Meter

100mV to 3 VRF,
10 kHz to 1.2 GHz

RF level measurements

S1348_

220V Power
Supply

0-20V, 5A

Programmable

AC/DC voltage and current
measurements

Programming/Test Cable

3-25

12.0 Programming/Test Cable

1 metre
Cable

Side
Connector
RKN4074_

Figure 3-16 Programming Test/Cable

Internal
Connections
1
2
3
4
5
6
7
8
9
10
11
12
13

Pin Outs

External Speaker +

Brown

External Speaker -

Dark Blue

Option B +

Red

External Mic

Grey

Option Select 2

Light Blue

Option Select 1

Tan

Ground

Black

Receive Data

Yellow

Transmit Data

Pink

RSSI

Orange

Tx Audio / Rx Audio

Violet

Boot Control

Green

Not Used

White

Figure 3-17 Pin Configuration of the Side Connector

1
2
3
4
5
6
7
8
9
10
11
12
13

3-26

MAINTENANCE

25 Pos Male D Connector
Side Connector
1
1

5
2

8
9
10
11

25 Pos Female D Connector
15
1
4
11

Figure 3-18 Wiring of the Connectors

Chapter 4
PERFORMANCE TESTING
1.0

Introduction
The receiver and transmitter performance tests are contained in Tables 4-1 and 4-2 respectively.
Refer to Chapter 5 for the test equipment set up. Note that all test measurements are taken at 25°C.

2.0

Receiver Performance Tests
The receiver performance tests are described in Table 4-1 below.
Table 4-1 Receiver Performance Checks

Test Name

Communications
Analyzer

Radio

Test Set

Comments

Reference
Frequency

Mode: PWR MON
Monitor: Frequency error
Input at RF In/Out

TEST MODE,
Test Channel
4 carrier
squelch
output at
antenna

PTT to
continuous
(during the
performance
check)

Frequency error to be
±200Hz VHF
±600Hz UHF

Rated Audio

Mode: GEN
Output level: 1.0mV RF
Mod: 1kHz tone at
3kHz deviation
Monitor: DVM: AC Volts

TEST MODE
Test Channel
4 carrier
squelch

PTT to OFF
(centre), meter
selector to
Audio PA

Set volume control to
3.16Vrms

Distortion

As above, except to
distortion

As above

Distortion 3.0%
Typical

Sensitivity
(SINAD)

As above, except SINAD,
lower the RF level for 12dB
SINAD.

As above

PTT to OFF
(center)

RF input to be
0.25µV

Noise
Squelch
Threshold
(only radios
with
conventional
system need
to be tested)

RF level set to 1mV RF

As above

PTT to OFF
(center), meter
selection to
Audio PA, spkr/
load to speaker

Set volume control to
3.16Vrms

As above, except change
frequency to a conventional
system. Raise RF level from
zero until radio unsquelches.

Out of TEST
MODE;
select a
conventional
system

As above

Unsquelch to occur at
<0.25µV.
Preferred SINAD =
9-10dB

4-2

3.0

PERFORMANCE TESTING

Transmitter Performance Tests
The transmitter performance tests are described in Table 4-2 below.
Table 4-2 Transmitter Performance Checks

Test Name

Communications
Analyzer

Radio

Test Set

Comments

Reference
Frequency

Mode: PWR MON
Monitor: Frequency error
Input at RF In/Out

TEST MODE,
Test Channel
4 carrier
squelch

PTT to continuous (during the
performance
check)

Frequency error to be
±200Hz VHF
±600Hz UHF

Power RF

As above

Refer to Maintenance Specifications

Voice
Modulation

Mode: PWR MON
atten to -70, input to
RF In/Out
Monitor: DVM, AC Volts
Set 1kHz Mod Out level for
0.025Vrms at test set,
80mVrms at AC/DC test set
jack

As above

As above, meter
selector to mic

Deviation:
VHF, UHF,
≥ 4.0kHz but
≤ 5.0kHz.
(25 kHz Ch Sp)

Voice
Modulation
(internal)

Mode: PWR MON
atten to -70, input to RF
In/Out

TEST MODE,
Test Channel
4 carrier
squelch
output at
antenna

Remove
modulation
input

Press PTT switch on
radio. Say “four”
loudly into the radio
mic. Measure
deviation: VHF, UHF,
≥ 4.0kHz but
≤ 5.0kHz
(25 kHz Ch Sp)

DTMF
Modulation

As above,

TEST MODE,
Test Channel
4 DTMF
output at
antenna

As above

Deviation:
VHF, UHF,
≥ 3.05kHz but
≤ 3.45kHz
(25 kHz Ch Sp).

PL/DPL
Modulation

As above
BW to narrow

TEST MODE,
Test
Channel 4
TPL
DPL

As above

Deviation:
VHF, UHF,
≥500Hz but
≤ 1000Hz.
(25 kHz Ch Sp).

Chapter 5
RADIO TUNING AND PROGRAMMING
1.0

Introduction
This chapter provides an overview of the Customer Programming Software (CPS) and tuner program
which are designed for use in a Windows 95/98 environment. These programs are available in
separate kits as listed in the Table 5-1. An Installation instruction manual is also included with each kit.
NOTE Refer to the appropriate program on-line help files for the programming procedures.

Table 5-1 Software Installation Kits Radio Tuning Setup

Description

Kit Number

EMEA CD

ENLN4115_

Installation Card

2.0

6864113B14_

Global Radio Tuning Setup
A personal computer (PC) using Windows 95/98 and a global tuner program are required to tune the
radio. To perform the tuning procedures, the radio must be connected to the PC, radio interface box
(RIB), and test equipment shown in Figure 5-1.

Battery
Eliminator
7.5V Reg.
RLN4510 (GP320/340/360/380)
+12VDC
Power
Supply

Radio

RF Adaptor
HLN9756
3.5 mm to
Ferrule BNC

Service Monitor
or Counter

Transmit

Wattmeter
Receive

20 dB Pad

RF Generator
Audio In

Battery Block
0180305G54

Test Box
RLN4460

Program / Test Cable
RKN 4074 (GP320/340/360/380)
DB15
AC Plug
120/230 Vac

RIB
RLN-4008
RIB Power Supply

Audio Generator
Sinad Meter
AC Voltmeter

DB9

Tx Data
Rx
Data
Gnd

Computer Interface
Cable 3080369B72

Figure 5-1 Radio Tuning Test Equipment Setup

5-2

2.1

RADIO TUNING AND PROGRAMMING

Initial Test Equipment Setup
The supply voltage is connected to the radio using a Motorola battery eliminator, P/N 0180305G54.
The initial test equipment (Figure 5-1) control settings are listed in Table 5-2.
NOTE Refer to appropriate program on-line help files for the tuning procedures.

Table 5-2 Initial Equipment Control Settings

Service Monitor

Test Set

Power Supply

Monitor Mode: Power Monitor

Speaker set: A

Voltage: 7.5Vdc

RF Attenuation: -70

Speaker/load:
Speaker

DC on/standby:
Standby

AM, CW, FM: FM

PTT: OFF

Volt Range: 10V

Oscilloscope Source: Mod
Oscilloscope Horizontal: 10mSec/Div
Oscilloscope Vertical: 2.5kHz/Div
Oscilloscope Trigger: Auto
Monitor Image: Hi
Monitor BW: Nar
Monitor Squelch: mid CW
Monitor Volume: 1/4 CW

3.0

Current: 2.5A

CPS Programming Setup
The CPS programming setup, shown in Figure 5-2, is used to program the radio codeplug.
NOTE Refer to appropriate program on-line help files for the codeplug programming procedures.

Radio

Ribless
Programming
Cable RKN4075

Test Box
RLN4460
Battery
Block
0180305G54

Program/
Test Cable

RKN4074 (GP320/340/360/380)

RLN4510
Battery
Eliminator (GP320/340/360/380)
7.5V Reg.

+12VDC
Power
Supply

DB15

DB9

Tx Data
Rx
Data
Gnd

RIB
RLN4008
Computer Interface
Cable
3080369B72
RIB Power Supply
120/230 Vac

Figure 5-2 CPS Programming Setup

Chapter 6
MODEL CHART AND TEST SPECIFICATION
1.0

Model Chart (UHF)

Professional GP300 Series (UHF)
Model

Description

MDH25RDC9AN0_E

GP320 UHF 403-470MHz 4W 1-Ch

MDH25RDC9AN3_E
MDH25RDF9AN5_E
MDH25RDH9AN6_E

Item
X
X

GP340 UHF Back Cover Kit
GP340 UHF Front Cover Kit

PMLE4141_
PMLN4302_

GP360 UHF Back Cover Kit
GP360 UHF Front Cover Kit

PMLE4138_
PMLN4304_

GP380 UHF Back Cover Kit
GP380 UHF Front Cover Kit

6864110B12_

GP320 Basic User Guide

6864110B13_

GP340 Basic User Guide

6864110B16_

GP360 Basic User Guide

6864110B18_

GP380 Basic User Guide

NAE6483_

UHF Whip (403-470 MHz) Antenna

PMAE4008_

UHF2 Whip (450-527 MHz) Antenna

JMNN4023__

Battery, Li-Ion Standard

HNN9008_

Battery, NiMH Standard

X
X
X

Description

PMLE4137_
PMLN4216_

X
X

GP380 UHF 403-470MHz 4W 255-Ch

GP320 UHF Back Cover Kit
GP320 UHF Front Cover Kit

X
X

GP360 UHF 403-470MHz 4W 255-Ch

PMLE4140_
PMLN4253_
X
X

GP340 UHF 403-470MHz 4W 16-Ch

x = Indicates one of each is required.

6-2

MODEL CHART AND TEST SPECIFICATION

2.0

Model Chart (VHF)

Professional GP300 Series (VHF)
Model

Description

MDH25KDC9AN0_E

GP320 VHF 136-174MHz 5W 1-Ch

MDH25KDC9AN2AE

GP330 VHF 136-174MHz 5W 4-Ch

MDH25KDC9AN3_E
MDH25KDF9AN5_E
MDH25KDH9AN6_E

Item
X
X

GP340 VHF 136-174MHz 5W 16-Ch
GP360 VHF 136-174MHz 5W 255-Ch
GP380 VHF 136-174MHz 5W 255-Ch

Description

PMLD4121_
PMLN4253_

GP320 VHF Back Cover Kit
GP320 VHF Front Cover Kit

PMLD4355_
PMLN5135_

GP330 VHF Back Cover Kit
GP330 VHF Front Cover Kit

PMLD4117_
PMLN4216_

GP340 VHF Back Cover Kit
GP340 VHF Front Cover Kit

PMLD4119_
PMLN4302_

GP360 VHF Back Cover Kit
GP360 VHF Front Cover Kit

PMLD4118_
PMLN4304_

GP380 VHF Back Cover Kit
GP380 VHF Front Cover Kit

6864110B12_

GP320 Basic User Guide

6866546D21_

GP330 Basic User Guide

6864110B13_

GP340 Basic User Guide

6864110B16_

GP360 Basic User Guide

6864110B18_

GP380 Basic User Guide

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

PMAD4023_

VHF 14cm (150-161 MHz) Antenna

HNN9008_

Battery, NiMH Standard

JMNN4023__

Battery, Li-Ion Standard

x = Indicates one of each is required.

Model Chart (LB)

3.0

6-3

Model Chart (LB)

Professional GP300 Series (LB)
Model

Description

MDH25BEC9AN3_E

GP340 LB1 29.7-42 MHz 6W 16-Ch

MDH25BEH9AN6_E

GP380 LB1 29.7-42 MHz 6W 255-Ch

MDH25CEC9AN3_E
MDH25CEH9AN6_E

Item
X
X

Description
GP340 LB1 Back Cover Kit
GP340 LB1 Front Cover Kit

PMLB4016_
PMLN4304_

GP380 LB1 Back Cover Kit
GP380 LB1 Front Cover Kit

PMLB4012_
PMLN4216_

GP340 LB2 Back Cover Kit
GP340 LB2 Front Cover Kit

PMLB4017_
PMLN4304_

GP380 LB2 Back Cover Kit
GP380 LB2 Front Cover Kit

6864110B13_

GP340 Basic User Guide

6864110B18_

GP380 Basic User Guide

X
X
X
X
X
X

GP380 LB2 35-50 MHz 6W 255-Ch

PMLB4006_
PMLN4216_
X
X

GP340 LB2 35-50 MHz 6W 16-Ch

NAB6064_

Low/Mid Band (29-50MHz) Heliflex, Trimmable Antenna

HNN9008_

Battery, NiMH Standard

6-4

4.0

MODEL CHART AND TEST SPECIFICATION

Model Chart (300R1)

Professional GP300 Series (300R1)
Model
MDH25EDC9AN3_E

Description
GP340 300R1 300-350 MHz 4W

Item

Description

X
X

PMLD4141_
PMLN4216_

GP340 300R1 Back Cover Kit
GP340 300R1 Front Cover Kit

6864110B13_

GP340 Basic User Guide

PMAD4022_

VHF 9cm (300-344 MHz) Antenna

HNN9008_

Battery, NiMH Standard

x = Indicates one of each is required.

Specifications - Professional GP300 Series Radios

6-5

5.0

Specifications - Professional GP300 Series Radios

5.1

GP320/330/340/360/380
Data is specified for +25°C unless otherwise stated.
General Specifications
Channel Capacity
GP320
GP330
GP340
GP360
GP380

1
4
16
255
255

Power Supply

Rechargeable battery 7.5v

Dimensions: H x W x D (mm)
With standard high capacity NiMH battery
With ultra high capacity NiMH battery
With NiCD battery
With Lilon battery

Height excluding knobs
137 x 57.5 x 37.5
137 x 57.5 x 40.0
137 x 57.5 x 40.0
137 x 57.5 x 33.0

Weight: (gm)
With Standard high capacity NiMH battery
With Ultra high capacity NiMH battery
With NiCD battery
With Lilon battery

GP320/GP330/GP340
420
500
450
350

GP360/GP380
428
508
458
358

Average Battery Life @5/5/90 Cycle:
With Standard high capacity NiMH battery
With Ultra high capacity NiMH battery
With NiCD battery
With Lilon battery

Low Power
11 hours
14 hours
12 hours
11 hours

High Power
8 hours
11 hours
9 hours
8 hours

Sealing:

Withstands rain testing per
MIL STD 810 C/D /E and IP54

Shock and Vibration:

Protection provided via impact
resistant housing exceeding MIL STD
810-C/D /E and TIA/EIA 603

Dust and Humidity:

Protection provided via environment
resistant housing exceeding MIL STD
810 C/D /E and TIA/EIA 603

6-6

MODEL CHART AND TEST SPECIFICATION

Transmitter
*Frequencies - Full Bandsplit
Channel Spacing

UHF/VHF/300R1
VHF 136-174 MHz
UHF 403-470 MHz
300R1 300-350MHz

LB
LB1 29.7-42 MHz
LB2 35-50 MHz

12.5/20/25 kHz

Frequency Stability
(-25°C to +55°C, +25° Ref.)

±2.5 ppm @ 12.5kHz
±5.0 ppm @ 25 kHz
±5.0 ppm (300R1)

Power

136 - 174 MHz: 1-5W
403 - 470 MHz: 1-4W
300 - 350 MHz: 1-4W

Modulation Limiting
FM Hum & Noise

±10ppm

1-6W

±2.5 @ 12.5 kHz
±4.0 @ 20 kHz
±5.0 @ 25 kHz
-40 dB typical

Conducted/Radiated Emission
Adjacent Channel Power
Audio Response (300 - 3000 Hz)

-36 dBm <1 GHz
-30 dBm >1 GHz
-60 dB @ 12.5 kHz
-70 dB @ 25 kHz
+1 to -3 dB
<3% typical
<5% typical (300R1)

Audio Distortion

Receiver
*Frequencies - Full Bandsplit
Channel Spacing
Sensitivity (12 dB SINAD) EIA
Sensitivity (20 dB SINAD) ETS
Intermodulation EIA
Adjacent Channel Selectivity
Spurious Rejection
Rated Audio
Audio Distortion @ Rated Audio
Hum & Noise
Audio Response (300 - 3000 Hz)
Conducted Spurious Emission

UHF/VHF/300R1
VHF 136-174 MHz
UHF 403-470 MHz
300R1 300-350 MHz

LB
LB1 29.7-42 MHz
LB2 35-50 MHz

12.5/20/25 kHz
0.25 µV typical
0.35 µV typical (300R1)
0.50 µV typical
65 dB
60 dB @ 12.5 kHz
70 dB @ 25 kHz
>70 dB
0.5W
<3% typical
-45 dB @ 12.5 kHz
-50 dB @ 20/25 kHz
+1 to -3 dB
-57 dBm <1 GHz
-47 dBm >1 GHz
ETS 300 086

*Availability subject to the laws and regulations of individual countries.

Chapter 7
POWER UP SELF-TEST
1.0

Error Codes
Turning on the radio starts a self-test routine that checks the radio functionality. If the checks are
successful, the radio generates a high-pitched self-test pass tone. If the self-test is not successful,
one low-pitched (300Hz) error tone is heard and the RED LED flashes several times to indicate the
reason for the failure (see Table 7-1 below). After flashing the error code, the LED remains off for 5
seconds and then repeats the error code. The LED sequence and the error tone continue until the
radio is switched off. Radios with displays are also able to display error codes. The meaning of the
LED indication, the displayed error codes and the related corrections are listed in Table 7-1.
Table 7-1 Power-up Error Codes
The LED
flashes...

If the error code
displayed is…

then, there is a...

To correct the problem...

“Test 1 Failed”

Once

Hardware codeplug error,
possibly codeplug structure
mismatch or non-existant
codeplug.

Reprogram codeplug. If message
re-occurs, replace main board or
return it to the nearest Motorola
depot.

“Test 2 Failed”

Twice

Select 5 Application Vector
corrupted.

Reprogram codeplug and retest the
radio.

“Test 3 Failed”

Three times

Codeplug Checksum error.

Reprogram codeplug and retest the
radio.

“Test 4 Failed”

Four times

Codeplug Version Error.

Reprogram codeplug using the
correct version and retest the radio.

“Test 5 Failed”

Five times

ROM Checksum test failure.

Turn radio off then on again. If the
message re-occurs replace the main
board or return it to the nearest
Motorola depot.

“Test 6 Failed”

Six times

RAM Checksum test failure.

Turn the radio off then on again. If the
message re-occurs replace the main
board or return it to the nearest
Motorola depot.

“Test 7 Failed”

---

Reserved

“Test 8 Failed”

Eight times

Radio Model Number failure. Reprogram codeplug for correct
model.

No Display.

300Hz Tone and
Flashing LED.
(Radio with no
display).

Display module is not
connected.

Check connection between main
board and the display module

Display module faulty.

Replace display module.

Radio failure or invalid
codeplug as described
above.

Turn the radio off then on again.
Confirm that there is a 300Hz fail
tone and count the number of flashes
made by the LED. Make the relevant
correction as described above

7-2

POWER UP SELF-TEST

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15B18C.Book(15B18CTOC) 6864115B18 D GP300 Basic Service Manual

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