MainCover GM Series/GM328 GM338 GM398 Detailed Service Manual 6804112J18 E GM328

User Manual: -GM Series/GM328 GM338 GM398 Detailed service manual 6804112J18-E

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GM328/GM338/GM398

Mobile Radios

Detailed Service Manual

6804112J18-E

December, 2003

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 prod-

ucts 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.

DOCUMENT HISTORY

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

Edition Description Date

6804112J18-O Initial edition

6804112J18-E Added Document History section. Dec. 2003

Changed to latest Safety Information (Feb. 2002)

Added GM328 model information to VHF, UHF1

and UHF2 bands.

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December, 2003

GM328/GM338/GM398

Mobile Radios

Detailed Service Manual

Contents

Section 1 Service Maintainability

Section 2 Controlhead Service Information

Section 3 Controller Service Information

Section 4 VHF Service Information

Section 5 UHF Band 1 Service Information

Section 6 UHF Band 2 Service Information

Section 7 Low Band Service Information

Section 8 VHF 45W Bipolar Service Information

Section 9 UHF Band 1 40W Bipolar Service Information

Section 10 UHF Band 2 40W Bipolar Service Information

Section 11 UHF Band 1 40W LDMOS Service Information

Section 12 UHF Band 2 40W LDMOS Service Information

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GM328/GM338/GM398

Mobile Radios

Service Maintainability

Issue: December, 2003

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.

SAFETY INFORMATION

Product Safety and RF Exposure for Mobile Two-Way Radios Installed in

Vehicles or as Fixed Site Control Stations

The information provided in this document supersedes the general safety information contained in

user guides published prior to February 2002.

RF Energy Exposure Awareness and Control Information, and

Operational Instructions for FCC Occupational Use Requirements

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 FCC limits. This radio device is NOT authorized for general population,

consumer or any other use.

This 2-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 from 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 2-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 2-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 Web sites 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-fags.html

http://www.osha.gov/SLTC/radiofrequencyradiation/index.html

BEFORE USING THIS RADIO, READ THIS BOOKLET WHICH CONTAINS IMPORTANT OPERAT-

ING INSTRUCTIONS FOR SAFE USAGE AND RF ENERGY AWARENESS AND CONTROL

INFORMATION FOR COMPLIANCE WITH RF ENERGY EXPOSURE LIMITS IN APPLICABLE

NATIONAL AND INTERNATIONAL STANDARDS.

Federal Communication Commission (FCC) Regulations

The FCC rules require manufacturers to comply with the FCC RF energy exposure limits for mobile

2-way radios before they can be marketed in the U.S. When 2-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

label directing users to specific user awareness information. Your Motorola 2-way radio 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 Standard

Your Motorola two-way radio is designed and tested to comply with a number of national and

international standards and guidelines (listed below) regarding human exposure to radio frequency

electromagnetic energy. This radio complies with the IEEE and ICNIRP exposure limits for

occupational/controlled RF exposure environment at duty factors of up to 50% talk–50% listen and

is authorized by the FCC for occupational use. In terms of measuring RF energy for compliance with

the FCC exposure guidelines, your radio antenna radiates measurable RF energy only while it is

transmitting (during talking), not when it is receiving (listening) or in standby mode.

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 Elec-

tromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999

• Australian Communications Authority Radiocommunications (Electromagnetic Radiation -

Human Exposure) Standard, 2003

• ANATEL, Brasil Regulatory Authority, Resolution 256 (April 11, 2001) “additional requirements

for SMR, cellular and PCS product certification.”

RF Exposure Compliance and Control Guidelines and Operating Instructions

To control exposure to yourself and others and to ensure compliance with the RF 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.

Instructions

•Transmit no more than the rated duty factor of 50% of the time. To transmit (talk), push the

Push-To-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).

•Transmit only when people outside the vehicle are at least the recommended minimum

laterial distance away, as shown in Table 1, from the body of a vehicle with a properly

installed antenna. This separation distance will ensure that there is sufficient distance from a

iii

properly installed (according to installation instructions) externally-mounted antenna to satisfy

the RF exposure requirements in the standards listed above.

NOTE: Table 1 below lists the recommended lateral distance for bystanders in an uncontrolled

environment from the body of a vehicle with an approved, properly installed transmitting

antenna (i.e., monopoles overa a ground plane, or dipoles) at several different ranges of

rated radio power for mobile radios installed in a vehicle.

NOTE:If you are not sure of the rated power of your radio, contact your Motorola representative or

dealer and supply the radio model number found on the radio model label. If you cannot

determine the rated power out, then assure 3-feet separation from the body of the vehicle.

Mobile Antenna Installation Guidelines

• These mobile antenna installation guidelines are limited to metal body motor vehicles or vehicles

with appropriate ground planes.

• Antennas should be installed in the center area of the roof or the trunk lid taking into account the

bystander exposure conditions of backseat passengers and according to the specific instructions

and restrictions in the Radio Installation Manual along with the requirements of the antenna sup-

plier.

• Trunk lid installations are limited to vehicles with clearly defined flat trunk lide, and in some

cases, to specific radio models and antennas. See the Radio Installation Manual for specific

information on how and where to install specific types of approved antennas to facilitate recom-

mended operating distances to all potentially exposed persons.

•Use only the Motorola-approved, supplied antenna or a Motorola-approved replacement

antenna. Unauthorized antennas, modifications, or attachments could damage the radio and

may result in non-compliance with RF Safety Standards.

Approved Accessories

• This radio has been tested and meets RF Safety Standards when used with the Motorola acces-

sories supplied or designated for this product. Use of other accessories may result in non-compli-

ance with RF Safety Standards.

• For a list of Motorola-approved antennas, visit the following Web site, 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.

Table 1: Rated Power of Vehicle-Installed Mobile Two-Way Radio and

Recommended Minimum Lateral Distance from Vehicle Body

Mobile Radio Rated

Power (see Note) Minimum Lateral Distance

from Vehicle Body

Less than 7 watts 8 inches (20 centimeters)

7 to 15 watts 1 foot (30 centimeters)

16 to 39 watts 2 feet (60 centimeters)

40 to 110 watts 3 feet (90 centimeters)

Compliance and Control Guidelines and Operating Instructions for

Mobile Two-Way Radios Installed as Fixed Site Stations

If mobile radio equipment is installed at a fixed location and operated as a control station or as a

fixed unit, the antenna installation must comply with the following requirements in order to ensure

optimal performance and compliance with the RF energy exposure limits in the standards and

guidelines listed on page ii:

• The antenna should be mounted outside the building on the roof or a tower if at all possible.

• As with all fixed site antenna installations, it is the responsibility of the licensee to manage the

site in accordance with applicable regulatory requirements and may require additional compli-

ance actions such as site survey measurements, signage, and site access restrictions in order to

ensure that exposure limits are not exceeded.

Electromagnetic Interference/Compatibility

NOTE:Nearly every electronic device is susceptible to electromagnetic interference (EMI) if

inadequately shielded, designed, or otherwise configured for electromagnetic compatibility. It

may be necessary to conduct compatibility testing to determine if any electronic equipment

used in or around vehicles or near fixed site antenna is sensitive to external RF energy or if

any procedures need to be followed to eliminate or mitigate the potential for interaction

between the radio transmitter and the equipment or device.

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.

Vehicles

To avoid possible interaction between the radio transmitter and any vehicle electronic control

modules, such as ABS, engine, or transmission controls, the radio should be installed only by an

experienced installer and the following precautions should be used when installing the radio:

1. Refer to the manufacturer’s instructions or other technical bulletins for recommendations on

radio installation.

2. Before installing the radio, determine the location of the electronic control modules and their

harnesses in the vehicle.

3. Route all radio wiring, including the antenna transmission line, as far away as possible from

the electronic control units and associated wiring.

Driver Safety

Check the laws and regulations on the use of radios in the area where you drive. Always obey them.

When using your radio while driving, please:

• Give full attention to driving and to the road.

• Pull off the road and park before making or answering a call if driving conditions so require.

Operational Warnings

For Vehicles With An Air Bag

Do not mount or place a mobile radio in the area over an air bag or in the air bag deployment

area. Air bags inflate with great force. If a 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

Turn off your radio prior to entering any area with a potentially explosive atmosphere.

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 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.

For radios installed in vehicles fueled by liquefied petroleum gas, refer to the (U.S.) National

Fire Protection Association standard, NFPA 58, for storage, handling, and/or container

information. For a copy of the LP-gas standard, NFPA 58, contact the National Fire

Protection Association, One Battery Park, Quincy, MA.

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vii

Table of Contents

SAFETY INFORMATION......................................................................................... i

Section 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 Piece Parts Availability ...................................................................................1-2

2.4 Technical Support...........................................................................................1-2

2.5 Further Assistance From Motorola .................................................................1-2

3.0 Radio Model Information......................................................................................1-3

Section 2 Maintenance

1.0 Introduction ..........................................................................................................2-1

2.0 Preventive Maintenance ......................................................................................2-1

2.1 Inspection .......................................................................................................2-1

2.2 Cleaning .........................................................................................................2-1

3.0 Safe Handling of CMOS and LDMOS..................................................................2-2

4.0 General Repair Procedures and Techniques.......................................................2-2

5.0 Notes For All Schematics and Circuit Boards......................................................2-5

Section 3 Service Aids

1.0 Recommended Test Tools...................................................................................3-1

2.0 Test Equipment....................................................................................................3-2

viii

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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.

2.0 Warranty and Service Support

Motorola offers support which 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” to an authorized Motorola Dealer must be accompanied by a Warranty Claim

Form. Warranty Claim Forms are obtained by contacting an Authorized 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 subsections

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. All returns must be accompanied by a Warranty Claim Form, available from

your Customer Resources representative. Products should be shipped back in the original

packaging, or correctly packaged to ensure that 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 techni-

cally capable of performing fault analysis and repair.

NOTE Before operating or testing these units, please read the Safety Information section in the

front of this manual.

1-2 Warranty and Service Support

2.3 Piece Parts Availability

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.

1-3 Radio Model Information

3.0 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 mobile radio model number and its specific characteristics.

Table 1-1 Radio Model Number (Example: AZM25KHF9AA5)

Type of

Unit Model

Series Freq.

Band Power

Level Physical

Packages Channel

Spacing Protocol Feature

Level

AZ M25 K

VHF

(136-

174MHz)

1-25W C

GM328 9

Program-

mable

Conventional 1

GM328

UHF1

(403-

470MHz)

25-60W F

GM338 5

GM338

UHF2

(450-

527MHz)

GM398 8

GM398

LB, R1

(29.7-

36MHz)

LB, R2

(36-

40MHz)

LB, R3

(42-

50MHz)

AZ = Country Code

M = Mobile

1-4 Radio Model Information

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2-1

Section 2

MAINTENANCE

1.0 Introduction

This chapter of the manual describes:

•preventive maintenance

•safe handling of CMOS devices

•repair procedures and techniques

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

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.

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).

1. Cleaning External Plastic Surfaces

The detergent-water solution should be applied sparingly with a stiff, non-metallic, short-bris-

tled brush to work all loose dirt away from the radio. A soft, absorbent, lintless cloth or tissue

should be used to remove the solution and dry the radio. Make sure that no water remains

entrapped near the connectors, cracks, or crevices.

NOTE Internal surfaces should be cleaned only when the radio is disassembled for servicing or

repair.

CAUTION: The effects of certain chemicals and their vapors can have harmful results on

certain plastics. Aerosol sprays, tuner cleaners, and other chemicals should be avoided.

2-2 Safe Handling of CMOS and LDMOS

2. Cleaning Internal Circuit Boards and Components

Isopropyl alcohol 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. Upon comple-

tion 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.

3.0 Safe Handling of CMOS and LDMOS

Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios.

CMOS characteristics make them 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 CMOS CAUTION

paragraph in the Disassembly and Reassembly section of the manual.

4.0 General Repair Procedures and Techniques

Parts Replacement and Substitution

When damaged parts are replaced, identical parts should be used. If the identical replacement

component is not locally available, check the parts list for the proper Motorola part number and

order the component from the nearest Motorola Communications parts center listed in the “Piece

Parts” section of this manual.

Rigid Circuit Boards

The 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 through-plated holes may interconnect multiple layers of the printed circuit. Therefore, care

should be exercised to avoid pulling the plated circuit out of the hole.

When soldering near the 18-pin and 40-pin connectors:

•avoid accidentally getting solder in the connector.

•be careful not to form solder bridges between the connector pins

•closely examine your work for shorts due to solder bridges.

NOTE Always use a fresh supply of alcohol and a clean container to prevent contamination by

dissolved material (from previous usage).

General Repair Procedures and Techniques 2-3

Chip Components

Use either the RLN4062 Hot-Air Repair Station or the Motorola 0180381B45 Repair Station for chip

component replacement. When using the 0180381B45 Repair Station, select the TJ-65 mini-

thermojet hand piece. On either unit, adjust the temperature control to 370 °C (700 °F), and adjust

the airflow to a minimum setting. Airflow can vary due to component density.

•To remove a chip component:

1. Use a hot-air hand piece and position the nozzle of the hand piece approximately 0.3 cm (1/

8") above the component to be removed.

2. Begin applying the hot air. Once the solder reflows, remove the component using a pair of

tweezers.

3. Using a solder wick and a soldering iron or a power desoldering station, remove the excess

solder from the pads.

•To replace a chip component using a soldering iron:

1. Select the appropriate micro-tipped soldering iron and apply fresh solder to one of the solder

pads.

2. Using a pair of tweezers, position the new chip component in place while heating the fresh

solder.

3. Once solder wicks onto the new component, remove the heat from the solder.

4. Heat the remaining pad with the soldering iron and apply solder until it wicks to the compo-

nent. If necessary, touch up the first side. All solder joints should be smooth and shiny.

•To replace a chip component using hot air:

1. Use the hot-air hand piece and reflow the solder on the solder pads to smooth it.

2. Apply a drop of solder paste flux to each pad.

3. Using a pair of tweezers, position the new component in place.

4. Position the hot-air hand piece approximately 0.3 cm (1/8” ) above the component and begin

applying heat.

5. Once the solder wicks to the component, remove the heat and inspect the repair. All joints

should be smooth and shiny.

2-4 General Repair Procedures and Techniques

Shields

Removing and replacing shields will be done with the R1070 station with the temperature control set

to approximately 215°C (415°F) [230°C (445°F) maximum].

•To remove the shield:

1. Place the circuit board in the R1070 circuit board holder.

2. Select the proper heat focus head and attach it to the heater chimney.

3. Add solder paste flux around the base of the shield.

4. Position the shield under the heat-focus head.

5. Lower the vacuum tip and attach it to the shield by turning on the vacuum pump.

6. Lower the focus head until it is approximately 0.3 cm (1/8”) above the shield.

7. Turn on the heater and wait until the shield lifts off the circuit board.

8. Once the shield is off, turn off the heat, grab the part with a pair of tweezers, and turn off the

vacuum pump.

9. Remove the circuit board from the R1070 circuit board holder.

•To replace the shield:

1. Add solder to the shield if necessary, using a micro-tipped soldering iron.

2. Next, rub the soldering iron tip along the edge of the shield to smooth out any excess solder.

Use solder wick and a soldering iron to remove excess solder from the solder pads on the cir-

cuit board.

3. Place the circuit board back in the R1070 circuit board holder.

4. Place the shield on the circuit board using a pair of tweezers.

5. Position the heat-focus head over the shield and lower it to approximately 0.3 cm (1/8”) above

the shield.

6. Turn on the heater and wait for the solder to reflow.

7. Once complete, turn off the heat, raise the heat-focus head and wait approximately one

minute for the part to cool.

8. Remove the circuit board and inspect the repair. No cleaning should be necessary.

Notes For All Schematics and Circuit Boards 2-5

5.0 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. Interconnect Tie Point Legend:

16_8MHz 16.8MHz Reference Frequency

3V3 Regulated 3.3V Supply Voltage for Voice Storage

5V Regulated 5V Supply Voltage for RF Circuitry

5V Regulated 5V Supply Voltage (Control Head)

5V RF Regulated 5V Supply Voltage for RF Circuitry

5V SOURCE 5V Signal to Switch On Control Head

5VD Regulated 5V Supply Voltage for Digital Circuitry

9V3 Regulated 9.3V Supply Voltage

9V3FLT Filtered 9.3V Supply Voltage

A+ 13.2V Supply Voltage

ADDR µP Address Lines

AN Analog Lines to Analog to Digital Converter

ANALOG INPUT 2 External Keypad Matrix Column Signal

ANALOG INPUT 3 External Keypad Matrix Row Signal

BATTERY VOLTAGE Battery Voltage Sense Line

BL A GREEN Back Light Anode Green

BL A RED Back Light Anode Red

BL GREEN Green Back Light Control

BL K GREEN Back Light Cathode Green

BL K RED Back Light Cathode Red

BL KP Green Green Keypad Back Light Control

2-6 Notes For All Schematics and Circuit Boards

BL KP RED Red Keypad Back Light Control

BL LCD GREEN Green Display Back Light Control

BL LCD RED Red Display Back Light Control

BL RED Red Back Light Control

BOOT CNTRL Bootstrap Mode Enable Signal

BOOT MODE Boot Mode Select

BOOT PWR ON Control Head Switch On Signal

BOOT SCI RX Serial Communication Interface Receive Line

BOOT SCI TX Serial Communication Interface Transmit Line

BOOT VPP Boot Mode Select

BUS+ Bi-directional Serial Communication Line

BWSELECT Signal to select between the Ceramic Filter Pairs

CH ACT Channel Activity Indicator Signal (Fast Squelch)

CH KP ID Control Head Keypad ID (Data) Lines

CH REQUEST Control Head Request from Control Head µP

CLK Clock Signal

CNTLVLTG PA Power Control Voltage

CNTR AUDIO Audio Lines of the Controller

COL x Keypad Matrix Column x

CSX Chip Select Line PCIC / FRACN

DATA Data Signal

DC POWER ON Electronic Switching On or Off of the Radio's Voltage Regulators

DISCAUDIO Audio Output Signal from the Receiver IC

ECLK Clock (not used)

EE CS EEPROM Chip Select

EMERGENCY CONTROL Emergency Line to switch on the Radio's Voltage Regulators

EXP BD REQ Service Request Line from Expansion Board

Notes For All Schematics and Circuit Boards 2-7

EXP1 CS Expansion Board Chip Select 1

EXP2 CS Expansion Board Chip Select 2

EXT KP COL External Keypad Matrix Column Signal

EXT KP ROW External Keypad Matrix Row Signal

EXT MIC External (from Accessory Connector) Microphone Input

EXT SWB+ External Switched 13.2V Supply Voltage

F1200 Interrupt Line from ASFIC CMP

FECTRL 1 Control Voltage for Front End Filter

FECTRL 2 Control Voltage for Front End Attenuator Switch

FLASH CS Flash Chip Select

FLASH OE Flash Output Enable

FLAT RX SND Option Board Audio Output Signal

FLAT TX RTN Flat TX Input from Option Board and Accessory Connector

FLT A+ Filtered 13.2 V Supply Voltage

GP x IN General Purpose Input x

GP x IN ACC y General Purpose Input x from Accessory Connector Pin y

GP x IN OUT ACC y General Purpose Input/Output x from Accessory Connector Pin y

GP x OUT General Purpose Output x

GP x OUT ACC y General Purpose Input x from Accessory Connector Pin y

GPIO General Purpose Input Output Lines

HANDSET AUDIO Handset Audio Output

HOOK Hang-up Switch Input

HSIO High Speed Clock In / Data Out

IF First Intermediate Frequency Signal

IGNITION CONTROL Ignition Line to switch on the Radio's Voltage Regulators

IN 5V RF REG Supply Voltage for 5V Regulator in RF Section

INT KP COL Internal Keypad Matrix Column Signal

2-8 Notes For All Schematics and Circuit Boards

INT KP ROW Internal Keypad Matrix Row Signal

INT MIC Internal (from Control Head) Microphone Input

INT SWB Internal Switched 13.2V Supply Voltage

INT SWB+ Internal Switched 13.2V Supply Voltage

IRQ Interrupt Request from Control Head

K9V1 9.1V in Transmit Mode

KEYPAD ID Keypad Identification Line

LCD A0 LCD Control / Display Data Select

LCD CS LCD Chip Select

LCD DATA LCD Data Lines

LCD E RD LCD Enable Read

LCD RW WR LCD Read Write Control

LED CNTRL LED Control Lines

LED GREEN Green LED Control

LED RED Red LED Control

LED YELLOW Yellow LED Control

LOCK Lock Detect Signal from Synthesizer

LSIO Low Speed Clock In / Data Out

LVZIF CS LVZIF Chip Select (not used)

MIC Microphone Input

MISO Serial Peripheral Interface Receive Line

MODIN Modulation Signal into the Synthesizer

MOSBIAS 2 PA Bias Voltage for second Stage

MOSBIAS 3 PA Bias Voltage for third Stage

NOISE BLNKR Noise Blanker Enable (Low Band only)

ON OFF CONTROL Service Request Line from Control Head / Manual Switching On

of the Radio's Voltage Regulators

ON OFF SENSE (Control Head) On/Off Sense Line to Control Head µP

Notes For All Schematics and Circuit Boards 2-9

ON OFF SENSE (Controller) Service Request Line from Control Head

OPT CS Option Board Chip Select

OPT PTT PTT from Option Board

PA PWR SET ASFIC Output Voltage to set the Transmitter Power

PA SWB Switches Supply Voltage for PA Current Control Circuitry

PA SUPVLTG 13.2 V Supply Voltage of the Transmitter PA

PCIC MOSBIAS 1 PA Bias Voltage for first Stage

PRESC Prescaler Signal from VCO to Synthesizer

PTT IRDEC Microphone PTT Input

PTT IRDECODER Microphone PTT Input

R W Read Write Signal for RAM / Flash

RAM CS RAM Chip Select

RDY Service Request Line from Option Board

REF CS Reference Chip Select (not used)

RESET Reset Line

ROW x Keypad Matrix Row x

RSSI Received Signal Strength Indicator

RX ADAPT Flat TX Path Disable during Transmitter Key-up

RX AUD RTN Option Board Input / Output of Receiver Audio Path

RX FLAT FILTERED AUDIO Flat or Filtered Audio to Accessory Connector

RXIN RF Signal from Antenna Switch into the Receiver

RXINJ RF Signal from the VCO into the Mixer

SCI RX Serial Communication Interface Receive Line

SCI TX Serial Communication Interface Transmit Line

SPI Serial Peripheral Interface Bus

SPKR- Negative Audio PA Speaker Output

SPKR+ Positive Audio PA Speaker Output

2-10 Notes For All Schematics and Circuit Boards

SQ DET Squelch Detect Signal

SYN µP Clock Signal

TEMP SENSE Temperature Sense Line for LCD

TEMPSENSE Temperature Sense Line from PA to µP

TRB TX/RX VCO Switch Signal

TX AUD RTN Option Board Output to Transmit Audio Path

TX AUD SND Microphone Audio to Option Board

TXINJ RF Signal from the VCO into the Transmitter PA

U DRIVER Supply Voltage for PA Driver

U PREDRIVER Supply Voltage for PA Pre-driver

UNSW 5V Permanent 5V Supply

URX SND Filtered Audio Signal to Option Board

VAG 2.5V Reference Voltage for Analog Circuitry

VCOBIAS 1 Switch Signal from Synthesizer

VCOBIAS 2 Switch Signal from Synthesizer

VCOMOD Modulation Signal into VCO

VCTRL VCO Frequency Control Voltage

VDDA Regulated 5V for Digital Circuitry in RF Section

VOLTAGE SENSE Voltage Sense Line from LCD

VOLUME Volume Pot Output

VOX Voice Operated Transmit Level

VPP Boot Mode Select

VS AUDIOSEL Switch Signal to Enable Option Board Audio Output Signal

VS GAINSEL Voice Storage Gain Select Line

VS INT Voice Storage Interrupt Line

VS MIC Voice Storage Audio Signal into Microphone Path

VS RAC Voice Storage Row Address Clock Signal

Notes For All Schematics and Circuit Boards 2-11

VSF Voltage Super Filtered (5V)

VSTBY 5V Supply for µP when the Radio is switched off

4-LAYER CIRCUIT BOARD DETAIL VIEWING

COPPER STEPS IN PROPER LAYER SEQUENCE

LAYER 1 (L1)

LAYER 2 (L2)

LAYER 3 (L3)

LAYER 4 (L4)

INNER LAYERS

SIDE 1

SIDE 2

2-12 Notes For All Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

3-1

Section 3

SERVICE AIDS

1.0 Recommended Test Tools

Table 3-1 lists the service aids recommended for working on the radio. While all of these items are

available from Motorola, most are standard workshop 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

Number Description Application

RLN4460_ Portable Test Set Enables connection to audio/accessory jack.

Allows switching for radio testing.

RKN4081_ Programming Cable with

Internal RIB Includes radio interface box (RIB) capability.

RLN4853_ 10 to 20 Pin Adapter Connects RKN4081_ to the radio accessory

connector.

RKN4083_ Mobile Programming/Test

Cable Connects radio to RIB (RLN4008_).

GTF374_ Program Cable Connects RIB to Radio microphone input

RLN4008_ Radio Interface Box Enables communications between radio and

computer’s serial communications adapter.

HLN8027_ Mini UHF to BNC Adaptor Adapts radio antenna port to BNC cabling of

test equipment.

GPN6133_ Power Supply Provides the radio with power when bench test-

ing.

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)

8180384J59 Housing Eliminator (short) Test Fixture used to bench test the radio PCB

8180384L95 Housing Eliminator

(short + top) Test Fixture used to bench test the radio PCB.

(Radio using pressure pads to retain PCB)

8180384J60 Housing Eliminator (medium) Test Fixture used to bench test the radio PCB

8180384J61 Housing Eliminator (long) Test Fixture used to bench test the radio PCB

3080369B71 Computer Interface Cable Connects the RIB to the Computer (25-pin)

3080369B72 Computer Interface Cable Connects the RIB to the Computer 9-pin

(Use for IBM PC AT - other IBM models use the

B71 cable above)

6686119B01 Removal Tool Assists in the removal of radio control head.

3-2 Test Equipment

2.0 Test Equipment

Table 3-2 lists test equipment required to service the radio and other two-way radios.

Table 3-2 Recommended Test Equipment

Motorola Part

Number Description Characteristics Application

R2600_NT Comms System Analyzer

(non MPT) This monitor will sub-

stitute for items with

an asterisk*

Frequency/deviation

meter and signal gen-

erator for widerange

troubleshooting and

alignment

R2680_NT Comms System Analyzer

( MPT1327) to be ordered

with

RLN1022_ (H/W) RLN1023_

(S/W)

This monitor will sub-

stitute for items with

an asterisk*.

Frequency/deviation

meter and signal gen-

erator for widerange

troubleshooting and

alignment

*R1072_ Digital Multimeter AC/DC voltage and

current measure-

ments

*R-1377_ AC Voltmeter 100µV to 300V, 5Hz -

1MHz, 10Megohm

input impedance

Audio voltage mea-

surements

WADN133 Delay Oscilloscope 2 Channel 40MHz

bandwidth,

5mV/cm - 20 V/cm

Waveform measure-

ments

R1440_

0180305F17

0180305F31

0180305F39

RLN4610

T1013_

Wattmeter,

Plug-in Elements

Carry case

RF Dummy Load

Thruline 50-Ohm,

±5% accuracy

100W, 25 - 60MHz

25W, 100-250MHz

10W, 200-250MHz

Wattmeter and

6 elements

Transmitter power

output measurements

S1339_ RF Millivolt Meter 100mV to 3 VRF.

10kHz to 1.2GHz RF level measure-

ments

R1011_/220V 220V Power Supply 0 - 40V 0 - 40A Programmable

GM328/GM338/GM398

Mobile Radios

Controlhead

Service Information

Issue: December, 2003

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.

Table of Contents

Section 1 overview

1.0 GM328 Model (GCN6112_).................................................................................1-1

2.0 GM338 Model (GCN6114_).................................................................................1-2

3.0 GM398 Model (GCN6115_).................................................................................1-3

Section 2 Theory of Operation

1.0 Introduction ..........................................................................................................2-1

2.0 Controlhead Model for GM328.............................................................................2-1

2.1 Power Supplies...............................................................................................2-1

2.2 Power On / Off................................................................................................2-1

2.3 Microprocessor Circuit....................................................................................2-2

2.4 SBEP Serial Interface.....................................................................................2-2

2.5 Keypad Keys ..................................................................................................2-3

2.6 Status LED and Back Light Circuit .................................................................2-3

2.7 Microphone Connector Signals ......................................................................2-3

2.8 Speaker ..........................................................................................................2-4

2.9 Electrostatic Transient Protection...................................................................2-4

3.0 Controlhead Model for GM338.............................................................................2-4

3.1 Power Supplies...............................................................................................2-4

3.2 Power On / Off................................................................................................2-4

3.3 Microprocessor Circuit....................................................................................2-5

3.4 SBEP Serial Interface.....................................................................................2-5

3.5 Keypad Keys ..................................................................................................2-6

3.6 Status LED and Back Light Circuit .................................................................2-6

3.7 Liquid Crystal Display (LCD) ..........................................................................2-7

3.8 Microphone Connector Signals ......................................................................2-7

3.9 Speaker ..........................................................................................................2-8

3.10 Electrostatic Transient Protection...................................................................2-8

4.0 Controlhead Model for GM398.............................................................................2-9

4.1 Power Supplies...............................................................................................2-9

4.2 Voltage Regulator Circuit................................................................................2-9

4.3 Power On / Off................................................................................................2-9

4.4 Microprocessor Circuit..................................................................................2-10

4.5 SBEP Serial Interface...................................................................................2-10

4.6 Keypad Keys ................................................................................................2-11

4.7 Status LED and Back Light Circuit ...............................................................2-11

4.8 Liquid Crystal Display (LCD) ........................................................................2-12

4.9 Microphone Connector Signals ....................................................................2-12

4.10 Speaker (Remote Mount Configuration only) ...............................................2-13

4.11 Electrostatic Transient Protection.................................................................2-13

Section 3 Troubleshooting Charts

1.0 Controlhead GM328 Troubleshooting Flow Chart ...............................................3-1

1.1 On/Off ............................................................................................................3-1

1.2 Microprocessor...............................................................................................3-2

2.0 Controlhead GM338 Troubleshooting Flow Chart ...............................................3-3

2.1 On/Off ............................................................................................................3-3

2.2 Microprocessor...............................................................................................3-4

2.3 Display............................................................................................................3-5

2.4 Backlight.........................................................................................................3-6

3.0 Controlhead GM398 Troubleshooting Flow Chart ...............................................3-7

3.1 On/Off ............................................................................................................3-7

3.2 Microprocessor ..............................................................................................3-8

3.3 Microprocessor (cont.)....................................................................................3-9

3.4 Display .........................................................................................................3-10

3.5 Keypad Backlight .........................................................................................3-11

3.6 Display Backlight .........................................................................................3-12

Section 4 Controlhead PCBs / Schematics / Parts lists

1.0 Allocation of Schematics and Circuit Boards.......................................................4-1

2.0 Controlhead GM328 - PCB 8486146B07 / Schematics.......................................4-3

Controlhead GM328 - PCB 8486146B07..............................................................4-3

Controlhead GM328 - Schematic Sheet 1 of 2.......................................................4-4

Controlhead GM328 - Schematic Sheet 2 of 2.......................................................4-5

Controlhead PCB 8486146B07 Parts List ..............................................................4-6

3.0 Controlhead GM338 - PCB 8486155B06 / Schematics.......................................4-7

Controlhead GM338 - PCB 8486155B06..............................................................4-7

Controlhead GM338 - Schematic Sheet 1 of 4.......................................................4-8

Controlhead GM338 - Schematic Sheet 2 of 4.......................................................4-9

Controlhead GM338 - Schematic Sheet 3 of 4.....................................................4-10

Controlhead GM338 - Schematic Sheet 4 of 4.....................................................4-11

Controlhead PCB 8486155B06 Parts List ............................................................4-12

4.0 Controlhead GM398 - PCB 8486178B03 / Schematics.....................................4-13

Controlhead GM398 - PCB 8486178B03 .............................................................4-13

Controlhead GM398 - Schematic Sheet 1 of 4.....................................................4-14

Controlhead GM398 - Schematic Sheet 2 of 4.....................................................4-15

Controlhead GM398 - Schematic Sheet 3 of 4.....................................................4-16

Controlhead GM398 - Schematic Sheet 4 of 4.....................................................4-17

Controlhead PCB 8486178B03 Parts List ............................................................4-18

1-1

Section 1

OVERVIEW

1.0 GM328 Model (GCN6112_)

The Controlhead contains the internal speaker, the on/off/volume knob, the microphone connector,

several buttons to operate the radio and several indicator Light Emitting Diodes (LED) to inform the

user about the radio status. To control the LED’s and to communicate with the host radio the control

head uses the Motorola 68HC11E9 microprocessor.

1-2 GM338 Model (GCN6114_)

2.0 GM338 Model (GCN6114_)

The Controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector,

several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user

about the radio status, and a 14 character Liquid Crystal Display (LCD) for alpha - numerical

information e.g. channel number or call address name. To control the LED’s and the LCD, and to

communicate with the host radio the control head uses the Motorola 68HC11E9 microprocessor.

GM398 Model (GCN6115_) 1-3

3.0 GM398 Model (GCN6115_)

The Controlhead contains the On/Off/Volume knob, the microphone connector, several buttons to

operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio

status, and a Liquid Crystal Display (LCD) with 21 pre - defined symbols and a 32*96 dot matrix for

graphical or alpha - numerical information e.g. channel number, select code, call address name. To

control the LEDs and the LCD, and to communicate with the host radio the control head uses the

Motorola 68HC11K4 microprocessor.

1-4 GM398 Model (GCN6115_)

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2-1

Section 2

THEORY OF OPERATION

1.0 Introduction

This Chapter provides a detailed theory of operation for the Controlhead circuits. For details of the

trouble shooting refer to the related Section of this manual.

2.0 Controlhead Model for GM328

The controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector,

several buttons to operate the radio and several indicator Light Emitting Diodes (LED) to inform the

user about the radio status. To control the LED’s and to communicate with the host radio the control-

head uses the Motorola 68HC11E9 microprocessor.

2.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector

J0801 pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at supply

voltage level and is used for the LED’s, the back light and to power up the radio via on / off / volume

knob. The stabilized +5 volt is used for the microprocessor and the keypad buttons. The voltage

USW 5V derived from the FLT A+ voltage and stabilized by the series combination of R0822,

VR0822 is used to buffer the internal RAM of the microprocessor (U0831). C0822 allows the supply

voltage level to be disconnected for a couple of seconds without losing RAM parameters. Dual diode

D0822 prevents radio circuitry from discharging this capacitor. When the supply voltage is applied to

the radio, C0822 is charged via R0822 and D0822. To avoid, that the µP enters the wrong mode

when the radio is switched on while the voltage across C0822 is still too low, the regulated 5V charge

C0822 via diode D0822.

2.2 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s voltage regulators on by connecting line

ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital transistor

Q0822 informs the controlhead’s microprocessor about the pressed knob. The microprocessor

asserts pin 62 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts via Q0823 and

D0821. The high line ON OFF CONTROL also informs the host radio, that the controlhead’s

microprocessor wants to send data via SBEP bus. When the radio returns a data request message,

the microprocessor will inform the radio about the pressed knob. If the radio was switched off, the

radio’s µP will switch it on and vice versa. If the On/Off/Volume knob is pressed while the radio is on,

the software detects a low state on line ON OFF SENSE, the radio is alerted via line ON OFF

CONTROL and sends a data request message. The controlhead µP will inform the radio about the

pressed knob and the radio’s µP will switch the radio off.

2-2 Controlhead Model for GM328

2.3 Microprocessor Circuit

The controlhead uses the Motorola 68HC11E9 microprocessor (µP) (U0831) to control the LED’s

and to communicate with the host radio. RAM and ROM are contained within the microprocessor

itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8

MHz ceramic resonator (U0833) and R0920.

The microprocessor’s RAM is always powered to maintain parameters such as the last operating

mode. This is achieved by maintaining 5V at µP pin 25. Under normal conditions, when the radio is

off, USW 5V is formed by FLT A+ running to D0822. C0822 allows the battery voltage to be

disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio

circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP . They are labeled within the device

block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and

convert that level to a number ranging from 0 to 255 which can be read by the software to take

appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP . If this voltage is lower than +5V

the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line is

normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type and the controlhead ID by reading the

levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic „1" for it to start executing correctly. The XIRQ

and the IRQ pins should also be at a logic „1".

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes

below 4.5 volts. This is used to reset the controller to prevent improper operation.

2.4 SBEP Serial Interface

The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This bus

uses only line BUS+ for data transfer. The line is bi-directional meaning that either the radio or the

controlhead µP can drive the line. The microprocessor sends serial data via pin 50 and D0831 and it

reads serial data via pin 47. Whenever the microprocessor detects activity on the BUS+ line, it starts

communication.

When the host radio needs to communicate to the controlhead µP , it sends data via line BUS+. Any

transition on this line generates an interrupt and the µP starts communication. The host radio may

send data like LED and back light status or it may request the controlhead ID or the keypad ID.

When the controlhead µP wants to communicate to the host radio, the µP brings request line CH

REQUEST to a logic „0" via µP pin 62. This switches on Q0823, which pulls line ON OFF CONTROL

high through diode D0821. A low to high transition on this line informs the radio, that the controlhead

requires service. The host radio then sends a data request message via BUS+ and the controlhead

µP replies with the data it wanted to send. This data can be information like which key has been

pressed or that the volume knob has been rotated.

The controlhead µP monitors all messages sent via BUS+, but ignores any data communication

between host radio and CPS or Universal Tuner.

Controlhead Model for GM328 2-3

2.5 Keypad Keys

The controlhead keypad is a 6-key keypad. All keys are configured as 2 analogue lines read by µP

pins 13 and 15 . The voltage on the analogue lines varies between 0 volts and +5 volts depending on

which key has been pressed. If no key is pressed, the voltage at both lines will be 5 volts. The key

configuration can be thought of as a matrix, where the two lines represent one row and one column.

Each line is connected to a resistive divider powered by +5 volts. If a button is pressed, it will connect

one specific resistor of each divider line to ground level and thereby reduce the voltages on the

analogue lines The voltages of the lines are A/D converted inside the µP (ports PE 0 - 1) and specify

the pressed button. To determine which key is pressed, the voltage of both lines must be

considered.An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a

keypad microphone, connected to the microphone connector J0811. Any microphone key press is

processed the same way as a key press on the controlhead.

2.6 Status LED and Back Light Circuit

All indicator LED’s (red, yellow, green) are driven by current sources. To change the LED status the

host radio sends a data message via SBEP bus to the controlhead µP . The controlhead µP

determines the LED status from the received message and switches the LED’s on or off via port PB

7 – 0 and port PA4. The LED status is stored in the µP ’s memory. The LED current is determined by

the resistor at the emitter of the respective current source transistor.

The back light for the keypad is controlled by the host radio the same way as the indicator LED’s

using µP port PA 5. The µP can switch the back light on and off under software control. The keypad

back light current is drawn from the FLT A+ source and controlled by 2 current sources. The LED

current is determined by the resistor at the emitter of the respective current source transistor.

2.7 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V and 2 A/D converter

inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the

SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the

audio from the microphone to the radio’s controller via connector J0801-4. Line HANDSET AUDIO

(J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+,

which is at supply voltage level, and +5V are used to supply any connected accessory like a

microphone or a handset.

The 2 A/D converter inputs (J0811-9/10) are used for a microphone with keypad. A pressed key will

change the dc voltage on both lines. The voltages depend on which key is pressed. The µP

determines from the voltage on these lines which key is pressed and sends the information to the

host radio.

Line PTT IRDEC (J0811-6) is used to key up the radio’s transmitter. While the PTT button on a

connected microphone is released, line PTT IRDEC is pulled to +5 volts level by R0843. Transistor

Q0843 is switched on and causes a low at µP port PA2. When the PTT button is pressed, signal

PTT IRDEC is pulled to ground level. This switches off Q0843 and the resulting high level at µP port

PA2 informs the µP about the pressed PTT button. The µP will inform the host radio about any

status change on the PTT IRDEC line via SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode

VR0821 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on the

radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware into

the radio’s flash memory (See controller subsection for more details).

2-4 Controlhead Model for GM338

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is

engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on

or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0841. Transistor

Q0841 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal

HOOK is pulled to ground level. This switches off R0841and the resulting high level at µP port PA1

informs the µP about the closed hang up switch. The µP will inform the host radio about any status

change on the HOOK line via SBEP bus.

2.8 Speaker

The controlhead contains a speaker for the receiver audio. The receiver audio signal from the

differential audio output of the audio amplifier located on the radio’s controller is fed via connector

J0801-10, 11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected to the

speaker connector P0801. The controlhead speaker can be disconnected if an external speaker,

connected on the accessory connector, is used.

2.9 Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the controlhead by

diodes VR0811 VR00812 VR0816 - VR0817. The diodes limit any transient voltages to tolerable

levels. The associated capacitors provide Radio Frequency Interference (RFI) protection.

3.0 Controlhead Model for GM338

The controlhead contains the internal speaker, the On/Off/Volume knob, the microphone connector,

several buttons to operate the radio, several indicator Light Emitting Diodes (LED) to inform the user

about the radio status, and a 14 character Liquid Crystal Display (LCD) for alpha - numerical

information e.g. channel number or call address name. To control the LEDs and the LCD, and to

communicate with the host radio the controlhead uses the Motorola 68HC11E9 microprocessor.

3.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector

J0801 pin 3 and the regulated +5V via connector J0801 pin 7. The voltage FLT A+ is at battery level

and is used for the LEDs, the back light and to power up the radio via On /Off /Volume knob. The

stabilized +5 volt is used for the microprocessor, the display, the display driver and the keypad

buttons. The voltage USW 5V derived from the FLT A+ voltage and stabilized by the series

combination of R0822, VR0822 is used to buffer the internal RAM of the microprocessor (U0831).

C0822 allows the battery voltage to be disconnected for a couple of seconds without losing RAM

parameters. Dual diode D0822 prevents radio circuitry from discharging this capacitor. When the

supply voltage is applied to the radio, C0822 is charged via R0822 and D0822. To avoid that the µP

enters the wrong mode when the radio is switched on while the voltage across C0822 is still too low,

the regulated 5V charge C0822 via diode D0822.

3.2 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s voltage regulators on by connecting

line ON OFF CONTROL to line UNSW 5V via D0821. Additionally, 5 volts at the base of digital

transistor Q0822 informs the controlhead’s microprocessor about the pressed knob. The

microprocessor asserts pin 62 and line CH REQUEST low to hold line ON OFF CONTROL at 5 volts

via Q0823 and D0821. The high line ON OFF CONTROL also informs the host radio, that the

Controlhead Model for GM338 2-5

controlhead’s microprocessor wants to send data via SBEP bus. When the radio returns a data

request message, the microprocessor will inform the radio about the pressed knob. If the radio was

switched off, the radio’s µP will switch it on and vice versa. If the On/Off/Volume knob is pressed

while the radio is on, the software detects a low state on line ON OFF SENSE, the radio is alerted

via line ON OFF CONTROL and sends a data request message. The controlhead µP will inform the

radio about the pressed knob and the radio’s µP will switch the radio off.

3.3 Microprocessor Circuit

The controlhead uses the Motorola 68HC11E9 microprocessor (µP) (U0831) to control the LEDs

and the LCD and to communicate with the host radio. RAM and ROM are contained within the

microprocessor itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8

MHz ceramic resonator (U0833) and R0920 .

The microprocessor’s RAM is always powered to maintain parameters such as the last operating

mode. This is achieved by maintaining 5V at µP pin 25 . Under normal conditions, when the radio is

off, USW 5V is formed by FLT A+ running to D0822. C0822 allows the battery voltage to be

disconnected for a couple of seconds without losing RAM parameters. Diode D0822 prevents radio

circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP . They are labeled within the device

block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and

convert that level to a number ranging from 0 to 255 which can be read by the software to take

appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP . If this voltage is lower than +5V

the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line

is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type and the controlhead ID by reading the

levels at ports PC0 – PC7. Connections JU0852/3/4 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic “1” for it to start executing correctly. The

XIRQ and the IRQ pins should also be at a logic “1”.

Voltage sense device U0832 provides a reset output that goes to 0 volts if the regulated 5 volts goes

below 4.5 volts. This is used to reset the controller to prevent improper operation.

3.4 SBEP Serial Interface

The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This

bus uses only line BUS+ for data transfer. The line is bi-directional, meaning that either the radio or

the controlhead µP can drive the line. The microprocessor sends serial data via pin 50 and D0831

and it reads serial data via pin 47. Whenever the microprocessor detects activity on the BUS+ line, it

starts communication.

When the host radio needs to communicate to the controlhead µP , it sends data via line BUS+. Any

transition on this line generates an interrupt and the µP starts communication. The host radio may

send data like display information, LED and back light status or it may request the controlhead ID or

the keypad ID.

2-6 Controlhead Model for GM338

When the controlhead µP wants to communicate to the host radio, the µP brings request line CH

REQUEST to a logic “0” via µP pin 62. This switches on Q0823, which pulls line ON OFF

CONTROL high through diode D0821. A low to high transition on this line informs the radio, that the

controlhead requires service. The host radio then sends a data request message via BUS+ and the

controlhead µP replies with the data it wanted to send. This data can be information like which key

has been pressed or that the volume knob has been rotated.

The controlhead µP monitors all messages sent via BUS+, but ignores any data communication

between host radio and CPS or Universal Tuner.

3.5 Keypad Keys

The controlhead keypad is a 6-key kepad (Model B) or a 10- key keypad (model C). All keys are

configured as 2 analogue lines read by µP pins 13 and 15. The voltage on the analogue lines varies

between 0 volts and +5 volts depending on which key has been pressed. If no key is pressed, the

voltage at both lines will be 5 volts. The key configuration can be thought of as a matrix, where the

two lines represent one row and one column. Each line is connected to a resistive divider powered

by +5 volts. If a button is pressed, it will connect one specific resistor of each divider line to ground

level and thereby reduce the voltages on the analogue lines The voltages of the lines are A/D

converted inside the µP (ports PE 0 - 1) and specify the pressed button. To determine which key is

pressed, the voltage of both lines must be considered.

An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a keypad

microphone, connected to the microphone connector J0811. Any microphone key press is

processed the same way as a key press on the controlhead.

3.6 Status LED and Back Light Circuit

All the indicator LEDs (red, yellow, green) are driven by current sources. To change the LED status

the host radio sends a data message via SBEP bus to the controlhead µP . The controlhead µP

determines the LED status from the received message and switches the LEDs on or off via port PB

7 – 0 and port PA4. The LED status is stored in the µP ’s memory. The LED current is determined by

the resistor at the emitter of the respective current source transistor.

The back light for the LCD and the keypad is controlled by the host radio the same way as the

indicator LEDs using µP port PA 5. This port is a Pulse Width Modulator (PWM) output. The output

signal charges capacitor C0843 through R0847. By changing the pulse width under software

control, the dc voltage of C0843 and thereby, the brightness of the back light can be changed in four

steps. The keypad back light current is drawn from the FLT A+ source and controlled by transistor

Q0933. The current flowing through the LEDs cause a proportional voltage drop across the parallel

resistors R0947, R0948. This voltage drop is amplified by the op-amp U0931-2. U0931-2 and

Q0934 form a differential amplifier. The voltage difference between the base of Q0934 and the

output of U0931-2 determines the current from the base of the LED control transistor Q0933 and in

turn the brightness of the LEDs. The µP can control the LEDs by changing the dc level at the base

of Q0934. If the base of Q0934 is at ground level, Q0934 is switched off and no current flows

through Q0933 and the LEDs. If the base voltage of Q0934 rises a current flows through Q0934 and

in turn through Q0933 causing the LEDs to turn on and a rising voltage drop across R0947, R0948.

The rising voltage causes the output of the op-amp to rise and to reduce the base to emitter voltage

of Q0934. This decreases the current of Q0933 until the loop has settled.

Controlhead Model for GM338 2-7

3.7 Liquid Crystal Display (LCD)

The LCD H0971 uses the display driver U0971. The display is a single layer super twist nematic

(STN) LCD display. It has 14 characters with a 5*8 dot matrix for displaying alpha - numerical

information and a line with 21 pre - defined icons above the dot matrix

The driver contains a data interface to the µP, an LCD segment driver, an LCD power circuit, an

oscillator, data RAM and control logic. At power up the driver’s control logic is reset by a logic “0” at

input SR2 (U0971-15). The driver’s internal oscillator is set to about 20 kHz and can be measured at

pin 22. The driver’s µP interface is configured to accept 8 bit parallel data input (U0971-D0-D7) from

the controlhead µP (U0831 port PC0-PC7).

To write data to the driver’s RAM the µP sets chip select (U0971-20) to logic “0” via U0831-11, RD

(U0971-18) to logic “1” via (U0831-10) and WR (U0971-17) to logic “0” via U0831-9. With input A0

(U0971-21) set to logic “0” via U0831-12 the µP writes control data to the driver. Control data

includes the RAM start address for the following display data. With input A0 set to logic “1” the µP

then writes the display data to the display RAM. When data transfer is complete the µP terminates

the chip select, RD and WD activities.

The display driver’s power circuit provides the voltage supply for the display. This circuit consists of

a voltage multiplier, voltage regulator and a voltage follower. The external capacitors C0971 -

C0973 configure the multiplier to double the supply voltage. In this configuration the multiplier output

VOUT (U0971-8) supplies a voltage of -5V (2* -5V below VDD). The multiplied voltage VOUT is sent

to the internal voltage regulator. To set the voltage level of the regulator output V5 (U0971-5) this

voltage is divided by the resistors R0973 and R0974 and fed back to the reference input VR (U0971-

6). In addition the regulator output voltage V5 can be controlled electronically by a control command

sent to the driver. With the used configuration the voltage V5 is about –2V. The voltage V5 is

resistively divided by the driver’s voltage follower to provide the voltages V1 - V4. These voltages

are needed for driving the liquid crystals. The level of V5 can be measured by one of the µP’s

analogue to digital converters (U0831-20) via resistive divider R0975, R0976. To stabilize the

display brightness over a large temperature range the µP measures the temperature via analogue to

digital converter (U0831-18) using temperature sensor U0834. Dependent on the measured

temperature the µP adjusts the driver output voltage V5, and in turn the display brightness, via

parallel interface.

3.8 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V and 2 A/D converter

inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the

SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the

audio from the microphone to the radio’s controller via connector J0801-4. Line HANDSET AUDIO

(J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+,

which is at supply voltage level, and +5V are used to supply any connected accessory like a

microphone or a handset.

The 2 A/D converter inputs (J0811-9/10) are used for a microphone with keypad. A pressed key will

change the dc voltage on both lines. The voltages depend on which key is pressed. The µP

determines from the voltage on these lines which key is pressed and sends the information to the

host radio.

2-8 Controlhead Model for GM338

Line PTT IRDEC (J0811-6) is used to key up the radio’s transmitter. While the PTT button on a

connected microphone is released, line PTT IRDEC is pulled to +5 volts level by R0843. Transistor

Q0843 is switched on and causes a low at µP port PA2. When the PTT button is pressed, signal

PTT IRDEC is pulled to ground level. This switches off Q0843 and the resulting high level at µP port

PA2 informs the µP about the pressed PTT button. The µP will inform the host radio about any

status change on the PTT IRDEC line via SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0821 is switched on through diode

VR0821 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on

the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware

into the radio’s flash memory (See controller sub section for more details).

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is

engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on

or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0841. Transistor

Q0841 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal

HOOK is pulled to ground level. This switches off R0841 and the resulting high level at µP port PA1

informs the µP about the closed hang up switch. The µP will inform the host radio about any status

change on the HOOK line via SBEP bus.

3.9 Speaker

The controlhead contains a speaker for the receiver audio. The receiver audio signal from the

differential audio output of the audio amplifier located on the radio’s controller is fed via connector

J0801-10, 11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected to the

speaker connector P0801. The controlhead speaker can be disconnected if an external speaker,

connected on the accessory connector, is used.

3.10 Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the controlhead by

diodes VR0811 VR00812 VR0816 - VR0817. The diodes limit any transient voltages to tolerable

levels. The associated capacitors provide Radio Frequency Interference (RFI) protection.

Controlhead Model for GM398 2-9

4.0 Controlhead Model for GM398

The controlhead contains the On/Off/Volume knob, the microphone connector, several buttons to

operate the radio, several indicator Light Emitting Diodes (LED) to inform the user about the radio

status, and a Liquid Crystal Display (LCD) with 21 pre - defined symbols and a 32*96 dot matrix for

graphical or alpha - numerical information e.g. channel number, select code, call address name. To

control the LEDs and the LCD, and to communicate with the host radio the controlhead uses the

Motorola 68HC11K4 microprocessor.

4.1 Power Supplies

The power supply to the controlhead is taken from the host radio’s FLT A+ voltage via connector

J0801 pin 3. The voltage FLT A+ is at battery level and is used for the LEDs, the back light, to power

up the radio via On/Off/Volume knob and to supply the voltage regulator circuitry. The regulator

circuitry provides the stabilized +5 volts which is used for the microprocessor circuitry, the display,

the display driver and the keypad buttons. The regulated +5V taken from the host radio via

connector J0801 pin 7 (line 5V SOURCE) is only used to switch on or off the voltage regulator in the

control-head.

4.2 Voltage Regulator Circuit

Voltage regulator U0861provides 5V for the controlhead. The supply voltage FLT A+ for the voltage

regulator is fed via parallel resistors R0861/2 and dual diode D0861 to pin 8 of U0861. The +5 volt

output is switched on and off by the host radios’s 5 volt source via line 5V SOURCE and control

transistor Q0866. When the host radio is switched off the voltage on line +5V SOURCE is at ground

level and switches off transistor Q0866. Pull up resistor R0863 pulls input SHUTDOWN (pin 3) of the

voltage regulator U0861 to FLT A+ level and switches off the output of U0861 (pin 1). When the host

radio is switched on the voltage on line 5V SOURCE of about +5 volts switches on transistor Q0866

which in turn pulls input SHUTDOWN (pin 3) to ground and switches on the output of U0861. Input

and output capacitors (C0861 / C0862 and C0864 / C0865) are used to reduce high frequency noise

and provide proper operation during battery transients. Diode D0861 prevents discharge of C0862

by negative spikes on the FLT A+ voltage. This regulator provides a reset output (pin 5) that goes to

0 volts if the regulator output goes out of regulation. This is used to reset the microprocessor

(U0871) and the display driver (J0821-5) to prevent improper operation.

The voltage USW 5V derived from voltage FLT A+ is stabilized using resistor R0855 and diode

VR0855 This voltage is used to buffer the microprocessor’s internal RAM. C0856 allows the battery

voltage to be disconnected for a couple of seconds without losing RAM parameters. Diode D0855

prevents radio circuitry from discharging this capacitor. The +5V at the second anode of D0855

speeds up charging of C0856, when the host radio is turned on by a high level at the ignition input

while the supply voltage is applied to the radio. This prevents the microprocessor from accidently

entering bootstrap mode.

4.3 Power On / Off

The On/Off/Volume knob when pressed switches the radio’s and the controlhead’s voltage

regulators on by connecting line ON OFF CONTROL to line UNSW 5V via D0852. Additionally, 5

volts at the base of digital transistor Q0853 informs the controlhead’s microprocessor about the

pressed knob. The microprocessor asserts pin 8 and line CH REQUEST low to hold line ON OFF

CONTROL at 5 volts via Q0852 and D0852. The high line ON OFF CONTROL also informs the host

radio, that the controlhead’s microprocessor wants to send data via SBEP bus. When the radio

returns a data request message, the microprocessor will inform the radio about the pressed knob.

2-10 Controlhead Model for GM398

If the radio was switched off, the radio’s µP will switch it on and vice versa. If the On/Off/Volume

knob is pressed while the radio is on, the software detects a low state on line ON OFF SENSE, the

radio is alerted via line ON OFF CONTROL and sends a data request message. The controlhead µP

will inform the radio about the pressed knob and the radio’s µP will switch the radio off. If the radio is

switched on either manually or automatically it’s +5V source switches on the controlhead’s voltage

regulator U0861 via line 5 SOURCE and transistor Q0866 and the controlhead’s microprocessor

starts execution.

4.4 Microprocessor Circuit

The controlhead uses the Motorola 68HC11K4 microprocessor (µP) (U0871) to control the LEDs

and the LCD and to communicate with the host radio. RAM and ROM are contained within the

microprocessor itself.

The microprocessor generates it’s clock using the oscillator inside the microprocessor along with a 8

MHz ceramic resonator (U0873) and R0873.

The microprocessor’s RAM is always powered to maintain parameters such as the last operating

mode. This is achieved by maintaining 5V at µP pin 76. Under normal conditions, when the radio is

off, USW 5V is formed by FLT A+ running to D0855. C0856 allows the battery voltage to be

disconnected for a couple of seconds without losing RAM parameters. Diode D0855 prevents radio

circuitry from discharging this capacitor.

There are 8 analogue to digital converter ports (A/D) on the µP. They are labeled within the device

block as PE0-PE7. These lines sense the voltage level ranging from 0 to 5V of the input line and

convert that level to a number ranging from 0 to 255 which can be read by the software to take

appropriate action.

Pin VRH is the high reference voltage for the A/D ports on the µP. If this voltage is lower than +5V

the A/D readings will be incorrect. Likewise pin VRL is the low reference for the A/D ports. This line

is normally tied to ground. If this line is not connected to ground, the A/D readings will be incorrect.

The microprocessor can determine the used keypad type by reading the level at port PE5.

Connections S0931 – S0935 are provided by the individual keypads.

The MODB / MODA input of the µP must be at a logic “1” for it to start executing correctly. The XIRQ

and the IRQ pins should also be at a logic “1”.

4.5 SBEP Serial Interface

The host radio (master) communicates to the controlhead µP (slave) through its SBEP bus. This bus

uses only line BUS+ for data transfer. The line is bi-directional, meaning that either the radio or the

controlhead µP can drive the line. The microprocessor sends serial data via pin 79 and D0872 and it

reads serial data via pin 78. Whenever the microprocessor detects activity on the BUS+ line, it starts

communication.

When the host radio needs to communicate to the controlhead µP, it sends data via line BUS+. Any

transition on this line generates an interrupt and the µP starts communication. The host radio may

send data like display information, LED and back light status or it may request the controlhead ID or

the keypad ID.

Controlhead Model for GM398 2-11

When the controlhead µP wants to communicate to the host radio, the µP brings request line CH

REQUEST to a logic “0” via µP pin 8. This switches on Q0852, which pulls line ON OFF CONTROL

high through diode D0852. A low to high transition on this line informs the radio, that the controlhead

requires service. The host radio then sends a data request message via BUS+ and the controlhead

µP replies with the data it wanted to send. This data can be information like which key has been

pressed or that the volume knob has been rotated.

The controlhead µP monitors all messages sent via BUS+, but ignores any data communication

between host radio and CPS or Universal Tuner.

4.6 Keypad Keys

The controlhead keypad is a 25 - key keypad. All keys are configured as 2 analogue lines read by

µP pins 49 and 48. The voltage on the analogue lines varies between 0 volts and +5 volts

depending on which key has been pressed. If no key is pressed, the voltage at both lines will be 5

volts. The key configuration can be thought of as a matrix, where the two lines represent one row

and one column. Each line is connected to a resistive divider powered by +5 volts. If a button is

pressed, it will connect one specific resistor of each divider line to ground level and thereby reduce

the voltages on the analogue lines The voltages of the lines are A/D converted inside the µP (ports

PE 0 - 1) and specify the pressed button. To determine which key is pressed, the voltage of both

lines must be considered.

An additional pair of analogue lines and A/D µP ports (PE 3 – 2) is available to support a keypad

microphone, connected to the microphone connector J0811. Any microphone key press is

processed the same way as a key press on the controlhead.

4.7 Status LED and Back Light Circuit

All the indicator LEDs (red, yellow, green) are driven by current sources. To change the LED status

the host radio sends a data message via SBEP bus to the controlhead µP. The controlhead µP

determines the LED status from the received message and switches the LEDs on or off via port PA

6 - 4. The LED status is stored in the µP’s memory. The LED current is determined by the resistor at

the emitter of the respective current source transistor.

The back light for keypad is controlled by the host radio the same way as the indicator LEDs using

µP port PH 3. This port is a Pulse Width Modulator (PWM) output. The output signal charges

capacitor C0943 through R0945. By changing the pulse width under software control, the dc voltage

of C0943 and thereby, the brightness of the back light can be changed in 16 steps. The keypad back

light current is drawn from the FLT A+ source and controlled by transistor Q0941. The current

flowing through the LEDs cause a proportional voltage drop across the parallel resistors R0955,

R0957. This voltage drop is amplified by the op-amp U0941-1. U0941-1 and Q0943 form a

differential amplifier. The voltage difference between the base of Q0943 and the output of U0941-1

determines the current from the base of the LED control transistor Q0941 and in turn the brightness

of the LEDs. The µP can control the LEDs by changing the dc level at the base of Q0943. If the base

of Q0943 is at ground level, Q0943 is switched off and no current flows through Q0941 and the

LEDs. If the base voltage of Q0943 rises a current flows through Q0943 and in turn through Q0941

causing the LEDs to turn on and a rising voltage drop across R0955, R0957. The rising voltage

causes the output of the op-amp to rise and to reduce the base to emitter voltage of Q0943. This

decreases the current of Q0941 until the loop has settled.

2-12 Controlhead Model for GM398

The back light for the LCD module uses a similar circuitry. The only differences are that µP port PH2

controls the back light brightness and that the LEDs are located on the LCD module which is

connected via J0821. Control line BL A GREEN connects to the anodes and control line BL K

GREEN connects to the cathodes of the LEDs.

4.8 Liquid Crystal Display (LCD)

The LCD module consists of the display and the display driver and is connected via connector

J0821. The display is a single layer super twist nematic (STN) LCD display. It has a dot matrix of 32

* 96 dots for displaying graphics and alpha - numerical information and a line with 21 pre - defined

icons above the dot matrix

The driver contains a data interface to the µP, an LCD segment driver, an LCD power circuit, an

oscillator, data RAM and control logic. At power up the driver’s control logic is reset by a logic “0” via

pin 5 of J0821. The driver’s µP interface is configured to accept 8 bit parallel data input (J0821-D0-

D7) from the controlhead µP (U0871 port PC0-PC7).

To write data to the driver’s RAM the µP sets chip select (J0821-6) to logic “0” via U0871-26, RD

(J0821-10) to logic “1” via (U0871-40) and WR (U0821-9) to logic “0” via U0871-33. With input A0

(J0821-8) set to logic “0” via U0871-34 the µP writes control data to the driver. Control data includes

the RAM start address for the following display data. With input A0 set to logic “1” the µP then writes

the display data to the display RAM. When data transfer is complete the µP terminates the chip

select and the clock activities.

The display driver’s power circuit provides the voltage supply for the display. This circuit consists of

a voltage multiplier, voltage regulator and a voltage follower. The regulator output voltage for the

display can be controlled electronically by a control command sent to the driver. The voltage level

can be measured by one of the µP’s analogue to digital converters (U0871-42) via J0821-21. To

stabilize the display brightness over a large temperature range the µP measures the temperature

via analogue to digital converter (U0871-43) using a temperature sensor on the module (J0821-4).

Dependent on the measured temperature the µP adjusts the driver output voltage, and in turn the

display brightness, via parallel interface.

4.9 Microphone Connector Signals

Signals BUS+, PTT IRDEC, HOOK, MIC, HANDSET AUDIO, FLT A+, +5V and 2 A/D converter

inputs are available at the microphone connector J0811. Signal BUS+ (J0811-7) connects to the

SBEP bus for communication with the CPS or the Universal Tuner. Line MIC (J0811-5) feeds the

audio from the microphone to the radio’s controller via connector J0801-4. Line HANDSET AUDIO

(J0811-8) feeds the receiver audio from the controller (J0801-6) to a connected handset. FLT A+,

which is at supply voltage level, and +5V are used to supply any connected accessory like a

microphone or a handset.

The 2 A/D converter inputs (J0811-9/10) are used for a microphone with keypad. A pressed key will

change the dc voltage on both lines. The voltages depend on which key is pressed. The µP

determines from the voltage on these lines which key is pressed and sends the information to the

host radio.

Controlhead Model for GM398 2-13

Line PTT IRDEC (J0811-6) is used to key up the radio’s transmitter. While the PTT button on a

connected microphone is released, line PTT IRDEC is pulled to +5 volts level by R0880. Transistor

Q0871 is switched on and causes a low at µP port PA2. When the PTT button is pressed, signal

PTT IRDEC is pulled to ground level. This switches off Q0871 and the resulting high level at µP port

PA2 informs the µP about the pressed PTT button. The µP will inform the host radio about any

status change on the PTT IRDEC line via SBEP bus.

When line PTT IRDEC is connected to FLT A+ level, transistor Q0851 is switched on through diode

VR0851 and thereby pulls the level on line ON OFF CONTROL to FLT A+ level. This switches on

the radio and puts the radio’s µP in bootstrap mode. Bootstrap mode is used to load the firmware

into the radio’s flash memory (See controller sub section for more details).

The HOOK input (J0811-3) is used to inform the µP when the microphone´s hang-up switch is

engaged. Dependent on the CPS programming the µP may take actions like turning the audio PA on

or off. While the hang up switch is open, line HOOK is pulled to +5 volts level by R0883. Transistor

Q0872 is switched on and causes a low at µP port PA1. When the HOOK switch is closed, signal

HOOK is pulled to ground level. This switches off R0883 and the resulting high level at µP port PA1

informs the µP about the closed hang up switch. The µP will inform the host radio about any status

change on the HOOK line via SBEP bus.

4.10 Speaker (Remote Mount Configuration only)

The remote mount controlhead contains a speaker for the receiver audio. The receiver audio signal

from the differential audio output of the audio amplifier located on the radio’s controller is fed via

connector J0801-10,11 to the speaker connector P0801 pin 1 and pin 2. The speaker is connected

to the speaker connector P0801. The controlhead speaker can be disconnected if only an external

speaker, connected on the accessory connector, should be used. If the controlhead is mounted

directly on the radio, an external speaker is required.

4.11 Electrostatic Transient Protection

Electrostatic transient protection is provided for the sensitive components in the controlhead by

diodes VR0811 - VR0814. The diodes limit any transient voltages to tolerable levels. The associated

capacitors provide Radio Frequency Interference (RFI) protection.

2-14 Controlhead Model for GM398

THIS PAGE INTENTIONALLY LEFT BLANK

3-1

Section 3

TROUBLESHOOTING CHARTS

1.0 Controlhead GM328 Troubleshooting Flow Chart

1.1 On/Off

Radio cannot be switched on via ON/OFF/Volume Knob

YES

R0823 Pin TAB

= 5V ?

R0823 Pin TAB1

when pressed

= 5V ?

Check / Replace

Volume Pot R0823

Check / Replace

R0822 / VR0822 /

D0822

YES

J0801 Pin 2

> 10V ?

Check / Replace

Q0821

Check / Replace

Q0822 / R0821

YES

J0801 Pin 2

=5V ?

Check / Replace

D0821 / R0852

Press and hold

On/Off/Volume Knob

3-2 Controlhead GM328 Troubleshooting Flow Chart

1.2 Microprocessor

Power Up Alert Tone is OK but volume knob does

not operate and no indicator is on

YES

EXTAL

U0831 Pin 31

= 8.00 MHz ?

RESET

TP0833

= HIGH ?

Check / Replace

C0833 / R0832 / U0831

Check radio controller

Data Signal

on J0801 Pin 5

BUS+ ?

Data Signal

on TP0836

SCI_RX ?

Data Signal

on TP0837

SCI_TX ?

Check / Replace

R0831 / U0833 / U0831

Check / Replace

R0837 / R0836

Check / Replace

U0831

Check / Replace

D0831 / R0838

Measure with scope while

rotating Volume Pot

Controlhead GM338 Troubleshooting Flow Chart 3-3

2.0 Controlhead GM338 Troubleshooting Flow Chart

2.1 On/Off

Radio cannot be switched on via ON/OFF/Volume Knob

YES

R0823 Pin TAB

= 5V ?

R0823 Pin TAB1

when pressed

= 5V ?

Check / Replace

Volume Pot R0823

Check / Replace

R0822 / VR0822 /

D0822 / C0822

YES

J0801 Pin 2

> 10V ?

Check / Replace

Q0821

Check / Replace

Q0822 / R0821

YES

J0801 Pin 2

=5V ?

Check / Replace

D0821 / R0852

Press and hold

On/Off/Volume Knob

3-4 Controlhead GM338 Troubleshooting Flow Chart

2.2 Microprocessor

Power Up Alert Tone is OK but volume knob does

not operate and no indicator is on

YES

EXTAL

U0831 Pin 31

= 8.00 MHz ?

RESET

TP0833

= HIGH ?

Check / Replace

C0833 / R0832 / U0831

Check radio controller

Data Signal

on J0801 Pin 5

BUS+ ?

Data Signal

on TP0836

SCI_RX ?

Data Signal

on TP0837

SCI_TX ?

Check / Replace

R0831 / U0833 / U0831

Check / Replace

R0837 / R0836

Check / Replace

U0831

Check / Replace

D0831 / R0838

Measure with scope while

rotating Volume Pot

Controlhead GM338 Troubleshooting Flow Chart 3-5

2.3 Display

Power Up Alert Tone is OK, volume knob does operate,

indicator/backlight is on but nothing on display

YES

V5 (against 5V)

TP0973 between

-6V and -7V ?

Activity on

Address & Data lines

A0 / D0..D7 / CS1

of U0971?

Check for shortage

U0831 / U0971

Check LCD Assembly

Check / Replace

C0971 / C0973 / R0972

R0973 / R0974 / U0971

3-6 Controlhead GM338 Troubleshooting Flow Chart

2.4 Backlight

Power Up Alert Tone is OK, volume knob does operate,

indicator/display is on but no backlight

YES

U0831 Pin 58

is toggling ?

Base of

Q0934

> 0.7V ?

Check / Replace

R0847 / C0843 / R0943

Check for shortage

U0831

YES

Collector of

Q0934

>5V and < 11V ?

Check / Replace

Q0934 U0931 /R0941 /

R0942 / R0944 / R0945

Check / Replace

Q0933 / R0947 / R0948

Controlhead GM398 Troubleshooting Flow Chart 3-7

3.0 Controlhead GM398 Troubleshooting Flow Chart

3.1 On/Off

R0854

Pin TAB1

when pressed

=5V ?

J0801 PIN2

> 10V ?

J0801 PIN2

=5V?

Check / Replace

Q0853 / R0853

YES

NO Check / Replace

D0852 / R0852

Check / Replace

Volume Pot R0854

Check / Replace

Q0851

Radio can not be switched on via ON/OFF/Volume Knob

YES

R0854

Pin TAB

= 5V?

NO Check / Replace

R0855 / VR0855 / D0855

C0856

Press and hold

On/Off/

Volume Knob

3-8 Controlhead GM398 Troubleshooting Flow Chart

3.2 Microprocessor

Power Up Alert Tone is audible on external speaker but volume

knob does not operate and no indicators are on

TP0876

=5V ?

YES

U0871

Pin 73 EXTAL

= 8 MHz

TP0866

= 0V

Check / Replace

R0873 / U0873 /

U0871

Check / Replace

R0866 / C0866 /

Q0866 / R0863

Check / Replace

R0861 / R0862 / D0861

C0861 / C0862 / U0861

C0863 / C0864 / C0865

YES YES

Controlhead GM398 Troubleshooting Flow Chart 3-9

3.3 Microprocessor (cont.)

Data Signal

on J0801

Pin 5 BUS+

Data Signal

on TP0877

SCI_RX

Data Signal

on TP0878

SCI_TX

Check / Replace

D0872 / R0887

YES

NO Check / Replace

U0871

Check

Radio Controller

Check / Replace

R0888 / R0889

Measure with scope

while rotating

Volume Pot

3-10 Controlhead GM398 Troubleshooting Flow Chart

3.4 Display

TP0973

Voltage Sense

between

2V and 2.4V

Activity on

Address & Data lines

A0 / D0...D7 / CS1

of U0971

YES

Check / Replace

Flex connection

Resistors on Address & Data

lines and LCD Module

Check / Replace

LCD Module

Check for shortage

U0871

Power Up Alert Tone is audible, volume knob does operate,

indicator/backlight is on but nothing is seen on the display.

Controlhead GM398 Troubleshooting Flow Chart 3-11

3.5 Keypad Backlight

U0871 Pin 25

is toggling ?

Base of Q0943

> 0.7V ?

Collector of

Q0943

>5V & < 11V

Check / Replace

Q0941 / R0955 / R0957

YES

Check / Replace

Q0943 / U0941 / R0941

R0943 / R0949 / R0951

Check for shortage

U0871

Check / Replace

R0945 / C0943 / R0947

Power Up Alert Tone is audible, volume knob does operate,

display is on but no keypad backlight.

3-12 Controlhead GM398 Troubleshooting Flow Chart

3.6 Display Backlight

U0871 Pin 24

is toggling ?

Base of Q0963

> 0.7V ?

Collector of

Q0963

>5V & < 11V

Check / Replace

Q0961 / R0975 / R0977

YES

Check / Replace

Q0963 / U0941 / R0961

R0963 / R0969 / R0971

Check for shortage

U0871

Check / Replace

R0965 / C0963 / R0967

Power Up Alert Tone is audible, volume knob does operate,

display is on but no display backlight.

4-1

Section 4

CONTROLHEAD PCBS / SCHEMATICS / PARTS LISTS

1.0 Allocation of Schematics and Circuit Boards

Table 4-1 Controlhead Diagrams and Parts Lists

PCB :

Controlhead GM328

8486146B07 Main Board Top Side

8486146B07 Main Board Bottom Side

Page 4-3

SCHEMATICS

Sheet 1 of 2

Sheet 2 of 2 Page 4-4

Page 4-5

Parts List

8486146B07 Page 4-6

Table 4-2 Controlhead Diagrams and Parts Lists

PCB :

Controlhead GM338

8486155B06 Main Board Top Side

8486155B06 Main Board Bottom Side

Page 4-7

SCHEMATICS

Sheet 1 of 4

Sheet 2 of 4

Sheet 3 of 4

Sheet 4 of 4

Page 4-8

Page 4-9

Page 4-10

Page 4-11

Parts List

8486155B06 Page 4-12

Table 4-3 Controlhead Diagrams and Parts Lists

PCB :

Controlhead GM398

8486178B03 Main Board Top Side

8486178B03 Main Board Bottom Side

Page 4-13

SCHEMATICS

Sheet 1 of 4

Sheet 2 of 4

Sheet 3 of 4

Sheet 4 of 4

Page 4-14

Page 4-15

Page 4-16

Page 4-17

Parts List

8486178B03 Page 4-18

4-2 Allocation of Schematics and Circuit Boards

THIS PAGE INTENTIONALLY LEFT BLANK

Controlhead GM328 - PCB 8486146B07 / Schematics 4-3

2.0 Controlhead GM328 - PCB 8486146B07 / Schematics

D0871

D0872

D0873

D0874 D0875 D0876

D0877 D0878 D0879

D0881

D0884

D0885

D0886

D0887 D0888

3579

864 10

J0811

JU0852

JU0853

JU0854

123

R0823

S0861

S0862

S0863

S0864

S0865

S0866

ZWG0130114-A

C0802

C0803

C0804

C0805

C0806

C0808

C0809

C0810

C0811

C0813

C0815

C0816

C0817

C0818

C0819

C0821

C0822

C0823

C0824

C0831

C0832

C0833

C0843

D0821

D0822

D0831

J0801

P0801

Q0821

Q0822

Q0823

Q0841

Q0843

Q0871

Q0872

Q0873

Q0874

Q0875

Q0876

Q0877

Q0878

Q0879

Q0881

Q0885

R0810

R0811

R0812

R0813

R0814

R0815

R0816

R0821

R0822

R0824

R0825

R0831

R0832

R0833

R0834

R0835

R0836

R0837

R0838

R0839

R0841

R0842R0843 R0844

R0845

R0847

R0849

R0852

R0853

R0854

R0861 R0862

R0864

R0866 R0867

R0871

R0872

R0873

R0874

R0875

R0876

R0877

R0878

R0879

R0880

R0881

R0885

TP0831

TP0832

TP0833

TP0834

TP0835

TP0836

TP0837

TP0838

U0831

U0832

U0833

U0835

VR0811

VR0816

VR0817

VR0821

VR0822

VR0823

MOTOROLA

8486146B07-0

Controlhead GM328 - PCB 8486146B07

ZWG0130114-A Top Side

ZWG0130113-B Bottom Side

4-4 Controlhead GM328 - PCB 8486146B07 / Schematics

HOOK

GROUND

MIC

GM300

CONTROL HEAD

PTT_IRDECODER

CONNECTOR

J0801

MICROPHONE

CONNECTOR

SCI_RX

BOOT_VPP

J0811

RESET BOOT_MODE

WARIS

HANDSET_AUDIO

CONTROLLER

KEYPAD ID

CONTROL HEAD ID

SCI_TX

EXT_KP_ROW

EXT_KP_COL

FLT_A+

456

BUS+

23 5V

VR0822

5.6V

R0843

2.2K

GND

INPUT RESET_

U0835

MC33464N-45ATR

J0801-8

JU0853

SWITCH

C0833

R0833

0.1uF

47K

10K

R0844

VDD 22

VRH 21

VRL

23 VSS1

VSS2

49 VSS3

45 XIRQ

33 XTAL

PE3_AN3

PE4_AN4

16 PE5_AN5

PE6_AN6

PE7_AN7

43 RESET

STRA_AS 30

STRB_RW*

PD1_TXD

PD2_MISO

PD3_MOSI

53 PD4_SCK

PD5_SS*

PE0_AN0

PE1_AN1

PE2_AN2

17 PC1_AD1 36

PC2_AD2 37

PC3_AD3 38

PC4_AD4 39

PC5_AD5

PC6_AD6 41

PC7_AD7 42

PD0_RXD

PB1_A9 11

PB2_A10 10

PB3_A11 9

PB4_A12 8

PB5_A13

PB6_A14 6

PB7_A15 5

PC0_AD0 34

PA1_IC2 63

PA2_IC1 62

PA3_OC5_OC1 59

PA4_OC4_OC1 58

PA5_OC3_OC1 57

PA6_OC2_OC1 56

PA7_PA1_OC1

PB0_A8 12

NC3

NC4

NC5

NC6 44

NC7

NC8 48

NC9

PA0_IC3

29 CLK_E

31 EXTAL

46 IRQ

27 MODA_LIR*

25 MODB_VSTBY

NC1

NC10 61

3NC2

MC68HC711E9

U0831

J0801-11

J0801-7

TP0832

50K

NEG

POS

TAB

TAB1

VAR

R0823

4.7K

R0824

J0811-5

Q0843

R0835

100

R0839

R0847

J0811-4

270

R0814

R0815

0.1uF

C0832

13K

C0831

3.3uF

J0811-1

C0823

.01uF

C0809

82pF

Q0823

D0822

R0813

GND

R0812

CSTCC8.00MG

U0833

5.6V

VR0821

100K

R0853

5.6V

VR0823

J0811-10

P0801-2

J0801-9

TP0837

INPUT

NC1

NC2

5NC3 6

NC4 7

NC5

RESET 1

U0832

MC33064

GND

Q0821

J0811-6

J0801-10

J0801-6

JU0852 SWITCH

JU0854

SWITCH

C0804

470pF

R0852

100K

C0817

82pF

J0811-8

R0845

4.7K

VR0811

33V

470pF

C0818

C0816

33K

R0837

C0808

470pF 470pF

C0806

10K

R0841

R0811

51K

J0811-3

J0811-2

1MEG

R0831

VR0816

20V

13K

J0811-9

R0810

TP0833

10K

R0821

47K

J0801-14

R0849

P0801-1

2.2K

R0832

J0801-3

J0801-5

TP0838

TP0834

470pF

C0810

470pF

C0819

100K

R0854

J0801-12

R0838

10K

J0811-7

R0834

270

20V

VR0817

2.2uF

J0801-4

C0822

470pF

13K

C0821

R0816

R0822

51K

470pF

C0815

C0811

470pF

TP0831

R0836

10K

TP0836

J0801-13

J0801-1

J0801-2

470pF

C0802

C0803

470pF

C0843 C0813

TP0835

470pF

C0824

.01uF

R0825

D0821

C0805

82pF

Q0822

R0842

47K

Q0841

INT_KP_ROW

INT_KP_COL

USW_5V

FLT_A+

BUS+

EXT_KP_ROW

MIC

EXT_KP_COL

FLT_A+

D0831

CH_KP_ID(0:7)

LED_CNTRL(0:8)

CH_REQUEST

PTT_IRDEC

HOOK

ON_OFF_SENSE

ON_OFF_CONTROL

USW_5V

VOLUME

EXT_KP_ROW

EXT_KP_COL

PTT_IRDEC

FLT_A+

PTT_IRDEC

SCI_TX

BUS+

BL_GREEN

ON_OFF_SENSE

HOOK

HANDSET_AUDIO

ON_OFF_CONTROL

FLT_A+

MIC

BUS+

HANDSET_AUDIO

Shown from Front Side

ZWG0130239-B

Controlhead GM328 - Schematic Sheet 1 of 2

Controlhead GM328 - PCB 8486146B07 / Schematics 4-5

S0862

LED5LED4 LED6LED1 LED2 LED3

F4 P2

F3 P1

F1 F2 F3 F4

P1 P2

LED1 LED2 LED3

1V/1V

0V/0V

0V/1V

LED4

LED6 LED5

S0864 S0863 S0861

S0866 S0865

KEYPAD

red yellow green

0V/2V

0V/3V

1V/0V

R0867

green

D0885

13K green

D0888

D0886

green

D0887

green

D0884

green

D0881

270

R0885

270

R0881

Q0885

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

S0865

1P1

2P2

3P3

5P5

6P6

7P7

R0864

S0861

43K

R0866

51K

R0861

51K

R0880

22K

13K

R0862

4P5

6P6

7P7

8P8

S0864

1P1

2P2

3P3

5P5

S0863

4P4

4P5

7P7

S0862 S0866

270

green

R0877

D0877 D0879

Q0877

red

270

R0878

Q0879

Q0878

yellow

D0878

Q0873

R0879

270

R0871

270

Q0871 Q0872

red

D0876

D0875

red

D0874

R0876

270

R0875

270

R0874

Q0876

270

Q0875Q0874

CH_A

sheet 2

red

Q0881

D0872 D0873

red red

R0873

D0871

270

R0872

FLT_A+

LED_CNTRL(0:8)

BL_GREEN

FLT_A+

LED_CNTRL(0:8)

INT_KP_COL

INT_KP_ROW

270

Controlhead GM328 - Schematic Sheet 2 of 2

ZWG0130240-A

4-6 Controlhead GM328 - PCB 8486146B07 / Schematics

Controlhead PCB 8486146B07 Parts List

* Motorola Depot Servicing only

Reference designators with an asterisk indicate

components which are not fieldreplaceable

because they need to be calibrated with

specialized factory equipment after installation.

Radios in which these parts have been replaced in

the field will be off frequency at temperature

extremes.

Circuit

Ref Motorola

Part No Description

C0802 2113741F17 470pF 50V

C0803 2113741F17 470pF 50V

C0804 2113741F17 470pF 50V

C0805 2113740F49 82pF 5% 50V

C0806 2113741F17 470pF 50V

C0808 2113741F17 470pF 50V

C0810 2113741F17 470pF 50V

C0811 2113741F17 470pF 50V

C0813 2113741F17 470pF 50V

C0815 2113741F17 470pF 50V

C0816 2113741F17 470pF 50V

C0817 2113740F49 82pF 5% 50V

C0818 2113741F17 470pF 50V

C0821 2113741F17 470pF 50V

C0822 2311049A40 TANT CP 2.2uF 10% 10V

C0823 2113741F49 10nF 50V

C0824 2113741F49 10nF 50V

C0831 2311049A42 TANT CP 3.3uF 10% 6V

C0832 2113743E20 100nF 16V

C0833 2113743E20 100nF 16V

C0843 2113741F17 470pF 50V

D0821 4813833C02 DUAL SOT MMBD6100

D0822 4813833C02 DUAL SOT MMBD6100

D0831 4880236E05 DIODE CHIP SCHOTTKY

D0871 4886171B01 LED RED

D0872 4886171B01 LED RED

D0873 4886171B01 LED RED

D0874 4886171B01 LED RED

D0875 4886171B01 LED RED

D0876 4886171B01 LED RED

D0877 4886171B01 LED RED

D0878 4886171B03 LED YELLOW

D0879 4886171B04 LED GREEN

D0881 4886171B04 LED GREEN

D0884 4886171B04 LED GREEN

D0885 4886171B04 LED GREEN

D0886 4886171B04 LED GREEN

D0887 4886171B04 LED GREEN

D0888 4886171B04 LED GREEN

J0801 0902636Y02 CONNECTOR FLEX 12 PIN

J0811 2864287B01 CONN TELCO 10 PIN JACK

P0801 2809926G01 CONN 1.25MM 2PIN SURMT

Q0821 4805921T02 TSTR DUAL ROHM FMC2 RH

Q0822 4880048M01 TSTR NPN DIG 47k/47k

Q0823 4805921T02 TSTR DUAL ROHM FMC2 RH

Q0841 4880048M01 TSTR NPN DIG 47k/47k

Q0843 4880048M01 TSTR NPN DIG 47k/47k

Q0871 4813824A10 TSTR NPN 40V .2A B=50-150

Q0872 4813824A10 TSTR NPN 40V .2A B=50-150

Q0873 4813824A10 TSTR NPN 40V .2A B=50-150

Q0874 4813824A10 TSTR NPN 40V .2A B=50-150

Q0875 4813824A10 TSTR NPN 40V .2A B=50-150

Q0876 4813824A10 TSTR NPN 40V .2A B=50-150

Q0877 4813824A10 TSTR NPN 40V .2A B=50-150

Q0878 4813824A10 TSTR NPN 40V .2A B=50-150

Q0879 4813824A10 TSTR NPN 40V .2A B=50-150

Q0881 4813824A10 TSTR NPN 40V .2A B=50-150

Q0885 4813824A10 TSTR NPN 40V .2A B=50-150

R0810 0662057A76 13k 1/16W 5%

R0811 0662057A90 51k 1/16W 5%

R0812 0662057A09 22 1/16W 5%

R0813 0662057A01 10 1/16W 5%

R0814 0662057A35 270 1/16W 5%

R0815 0662057A76 13k 1/16W 5%

R0816 0662057A90 51k 1/16W 5%

R0821 0662057A73 10k 1/16W 5%

R0822 0662057A76 13K 1/16W 5%

R0823 1805911V02 POT VOL

R0824 0662057A65 4k7 1/16W 5%

R0825 0662057A49 1k 1/16W 5%

R0831 0662057B22 1M 1/16W 5%

R0832 0662057A57 2k2 1/16W 5%

R0833 0662057A89 47k 1/16W 5%

R0834 0662057A35 270 1/16W 5%

R0835 0662057A25 100 1/16W 5%

R0836 0662057A73 10k 1/16W 5%

R0837 0662057A85 33k 1/16W 5%

R0838 0662057A73 10k 1/16W 5%

R0841 0662057A73 10k 1/16W 5%

R0842 0662057A89 47k 1/16W 5%

R0843 0662057A57 2.2k 1/16W 5%

R0844 0662057A73 10k 1/16W 5%

R0845 0662057A65 4k7 1/16W 5%

R0847 0662057A09 22 1/16W 5%

R0849 0662057A89 47k 1/16W 5%

R0852 0662057A97 100k 1/16W

R0853 0662057A97 100k 1/16W

R0854 0662057A97 100k 1/16W

R0861 0662057A90 51k 1/16W 5%

R0862 0662057A76 13k 1/16W 5%

R0864 0662057A88 43k 1/16W 5%

R0866 0662057A90 51k 1/16W 5%

R0867 0662057A76 13k 1/16W 5%

R0873 0660076A35 270 5 1/8

R0874 0660076A35 270 5 1/8

R0875 0660076A35 270 5 1/8

R0876 0660076A35 270 5 1/8

R0877 0660076A35 270 5 1/8

R0878 0660076A35 270 5 1/8

Circuit

Ref Motorola

Part No Description

R0879 0660076A35 270 5 1/8

R0880 0662057A81 22k 1/16W 5%

R0881 0662057A35 270 1/16W 5%

R0885 0662057A35 270 1/16W 5%

*U0831 5113802A24 IC 68HC11 W/SCI,SPI,A/D

U0832 5113815A02 IC

U0833 4886061B01 CER RESONATOR 8MHZ

CSTCC8.00MG

VR0816 4805656W09 DIODE ZENER QUAD

MMQA20VT1

VR0817 4805656W09 DIODE ZENER QUAD

MMQA20VT1

VR0821 4813830A15 DIODE 5.6V 5% 225mW

VR0822 4813830A15 DIODE 5.6V 5% 225mW

VR0823 4813830A15 DIODE 5.6V 5% 225mW

Circuit

Ref Motorola

Part No Description

Controlhead GM338 - PCB 8486155B06 / Schematics 4-7

3.0 Controlhead GM338 - PCB 8486155B06 / Schematics

D0877 D0879

D0880

D0931

D0932

D0933

D0934

D0935

D0936 D0937

D0938

D0939

D0940

D0941

D0942

D0943

D0944 D0945

D0946

D0947

D0948

D0949

D0950 D0951

D0952 D0953

D0954

D0955

D0956

D0957

D0958

D0961

D0962

D0963

D0964

D0965

D0966 D0967

D0968

D0969

D0970

D0971

D0972

D0973

D0974 D0975

D0976

D0977

D0978

D0979

D0980 D0981

D0982 D0983

D0984

D0985

D0986

D0987

D0988

41 80

H0971

3579

864 10

J0811

R0823

S0852

S0853

S0854

S0901

S0902

S0903

S0904

S0905

S0906

S0907 S0908

S0909 S0910

U0834

110 30

60 70

ZWG0130136-A

C0802

C0803

C0804

C0805

C0806

C0807

C0808

C0810

C0811

C0812

C0813 C0815

C0816

C0817

C0818

C0819

C0821

C0822

C0823

C0831

C0832

C0833

C0842

C0843

C0931

C0932

C0933

C0971

C0972

C0973

C0974

C0975

C0976 C0977

C0978 C0979

C0980 C0981

C0982

C0983

C0984

C0985

D0821

D0822

D0831

J0801

P0801

Q0821

Q0822

Q0823

Q0841

Q0843

Q0877

Q0878

Q0879

4Q0931 Q0932

4Q0933

Q0934

R0810

R0811

R0812 R0813 R0814

R0815

R0816

R0817

R0821

R0822

R0824

R0825

R0831

R0832

R0833

R0834

R0835

R0836

R0837

R0838

R0841

R0842

R0843

R0844

R0845

R0847

R0848

R0849

R0850

R0851

R0852

R0853

R0854

R0855

R0856

R0857

R0858

R0859

R0860

R0861

R0862

R0863

R0864 R0865

R0877

R0878

R0879

R0901

R0902

R0903

R0904

R0905

R0906

R0907

R0908

R0909

R0910

R0931

R0932

R0933 R0934

R0935

R0936

R0937

R0938

R0941 R0942

R0943

R0944 R0945

R0946

R0947

R0948

R0972

R0973 R0974

R0975

R0976

R0977

R 0978

TP0831

TP0832

TP0833

TP0834

TP0835

TP0836

TP0837

TP0838

TP0971

TP0972

TP0973

TP0974 TP0975 1

U0831

U0832

3U0833

U0835

U0931

128

103

102

64 38

U0971

VR0811

VR0812

VR0816

VR0817

VR0821

VR0822

MOTOROLA

c8486155B06-0

Controlhead GM338 - PCB 8486155B06

ZWG0130136-A Top Side

ZWG0130137-B Bottom Side

4-8 Controlhead GM338 - PCB 8486155B06 / Schematics

MIC

PTT_IRDECODER

CONNECTOR

BUS+

KEYPAD ID

CONTROLLER

NOT PLACED

PLACED

J0811

VPP

HANDSET_AUDIO

ANALOG_INPUT_3

GM300

MICROPHONE

BOOT_MODE

SCI_RX

SCI_TX

FLT_A+

RESET

TEMP_SENSE

CONTROL HEAD ID

GND

HOOK

8910

WARIS

CONTROLHEAD

CONNECTOR

GROUND

ANALOG_INPUT_2

FLT_A+

2J0801

J0801-8

4.7K

R0864

270

R0814

R081513K

R0810 13K

Q0841

J0801-5

R0833

47K

R0832

2.2K

R0837

33K

270

R0877

J0811-8

R0852

47K

GND

INPUT RESET_

U0835

MC33464N-45ATR

S0854

SWITCH

S0853

J0801-3

S0852

SWITCH

J0801-10

J0801-13

J0811-9

J0801-14

J0811-10

R0813

J0801-7

5.6V

VR0822

D0831

Q0821

U0833

CSTCC8.00MG

C1 1

C2 3

GND

J0811-6

J0801-4

470pF

C0812

R0817

47K

R0851

green

D0879

R0857

47K

D0880

yellow

47K

R0854

47K

R0859

10K

R0841

2.2K

R0843

51K

R0816

J0811-7

Q0823

R0831

TAB1

VAR

1MEG

R0823

50K

NEG

POS

TAB

J0801-12

J0801-9

R0848

68K

C0831

NC4

NC5 8

RESET

3.3uF

MC33064

GND

2INPUT

3NC1

5NC2

NC3 7

U0832

R0812 22

R0879

270

R0878

270

D0822

J0811-5

R0844

10K

R0865

4.7K

100K

R0860

47K

R0853

J0801-11

Q0822

4.7K

R0845

C0842

2.2uF

Q0879Q0878

red

D0877

R0811

Q0877

51K

TP0833

R0825

470pF

C0804

22K

TP0836

R0822

TP0834

470pF

C0821

VR0812

5.6V

R0863

4.7K

R0850

47K

R0856

47K

82pF

C0805

VDD 22

VRH 21

VRL

23 VSS1

24 VSS2

49 VSS3

45 XIRQ

33 XTAL

PE4_AN4

PE5_AN5

PE6_AN6

PE7_AN7

RESET

STRA_AS 30

STRB_RW*

PD2_MISO

PD3_MOSI

PD4_SCK

PD5_SS*

PE0_AN0

PE1_AN1

PE2_AN2

PE3_AN3

PC2_AD2 37

PC3_AD3 38

PC4_AD4 39

PC5_AD5 40

PC6_AD6 41

PC7_AD7 42

PD0_RXD

PD1_TXD 11

PB2_A10 10

PB3_A11 9

PB4_A12 8

PB5_A13 7

PB6_A14 6

PB7_A15 5

PC0_AD0 34

PC1_AD1

PA1_IC2 63

PA2_IC1 62

PA3_OC5_OC1 59

PA4_OC4_OC1 58

PA5_OC3_OC1 57

PA6_OC2_OC1 56

PA7_PA1_OC1

PB0_A8 12

PB1_A9

NC3

26 NC4

32 NC5

NC6 44

NC7 48

NC8 60

NC9

PA0_IC3 64

CLK_E

31 EXTAL

46 IRQ

27 MODA_LIR*

25 MODB_VSTBY

2NC1

NC10

3NC2

MC68HC711E9

U0831

J0811-4

J0811-3

J0811-2

C0822

2.2uF

R0838

10K

R0836

10K

VR0816

20V

VR0817

20V

2.2uF

C0843

0.1uF

C0832

C0833

0.1uF

47K

R0842

VR0821

10V

C0819

C0816

470pF

470pF 82pF

C0817

TP0831

P0801-2

P0801-1

TP0835

C0806

470pF

47K

R0849

47K

R0855

470pF

C0803

R084768K

470pF

C0813

C0815

470pF

47K

C0807

R0858

470pF

Q0843

VOUT

D0821

U0834

LM50

GND

POS

R0821

10K 6

J0801-1

270

R0834

J0801-6

R0824

4.7K

470pF

C0802

470pF

C0810

VR0811

33V

C0811 NU

470pF

C0818

100K

R0862

TP0837

TP0832

TP0838

100

R0835

100K

R0861

J0801-2

J0811-1

82pF

C0808

C0823

.01uF

BL_RED

BL_GREEN

BUS+ 5V

RESET

HOOK

MIC

FLT_A+

SCI_TX

VOLTAGE_SENSE

HANDSET_AUDIO

PTT_IRDEC

BUS+

AN(0:4)

USW_5V

FLT_A+

CH_REQUEST

ON_OFF_CONTROL

PTT_IRDEC

HOOK

CH_REQUEST

ON_OFF_SENSE

SCI_TX

HANDSET_AUDIO

BUS+

MIC

FLT_A+

ON_OFF_CONTROL

FLT_A+

LED_CNTRL(0:8)

ON_OFF_SENSE

PTT_IRDEC

FLT_A+

AN(0:4)

USW_5V

FLT_A+

AN(0:4)

CH_KP_ID(0:7)

CONTROLHEAD B NU NU NU USED USED USED USED NU

CONTROLHEAD C NU NU USED NU USED USED NU USED

R0850 R0851 R0852 R0853 R0855 R0856 R0857 R0858

ZWG0130241-A

Controlhead GM338 - Schematic Sheet 1 of 4

ZWG0130241-A

Controlhead GM338 - PCB 8486155B06 / Schematics 4-9

SW0906 SW0904

SW0903 SW0901

SW0909 SW0910

SW0908SW0907

SW0902

SW0905

KEYPAD C

SW0908

SW0905

SW0902

P3P1

P2 P4

7P7

8P8

SW0906 SW0910

SW0903

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0901

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0905

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0902

SWITCH

S0910

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0908

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0906

1P1

2P2

3P3

4P4

5P5

6P6

SWITCH

S0903

43K

R0909

43K

130K

R0904

130K

R0910

R0905

R0906

51K

R0901

51K

R0908

22K

R0903

22K

R0902

13K R0907

13K

5P5

6P6

7P7

8P8

CH_C

sheet 2

CH_B

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0909

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0907

SWITCH

S0904

1P1

COL2

COL1

ROW2

ROW1

ROW3 COL3

ROW5

ROW4

COL5

COL4

AN(0:4)

COL3 COL2

ROW1

ROW2

ROW3

ROW4

COL4

Controlhead GM338 - Schematic Sheet 2 of 4

ZWG0130242-A

4-10 Controlhead GM338 - PCB 8486155B06 / Schematics

BACKLIGHT REDBACKLIGHT GREEN

Q0931

D0980

D0979

D0978

R0946

D0977

R0945

10K

33K

10K

R0942

10K

R0941

D0972

R0944

100K

R0947 R0948

U0931-2

MC33072

100K

Q0933

D0987

R0934

D0986

D0985

D0984

10K

R0935

D0969 NU

D0951

D0967

D0966

D0964

D0965

D0963

D0970

D0962

D0971

D0947

D0943

Q0934

D0932

4.7K

D0931

R0943

C0931

0.1uF

R0938

R0937

10 NU

C0932

0.1uF

R0936

10K

R0932 NU

D0949

33K

R0931

10K

Q0932

MC33072

U0931-1

D0942

D0941

D0940

D0938

D0937

D0958

D0957

D0956

D0954

D0953

D0952

D0950

D0975

D0976

D0974

D0973 NU

D0939

D0935

D0933

D0934

0.1uF

C0933

D0936

D0968

D0988

4.7K

R0933

D0961

D0983

D0982

D0981 D0955

D0948

D0946

D0944

D0945

FLT_A+

BL_GREEN BL_RED

FLT_A+

Controlhead GM338 - Schematic Sheet 3 of 4

ZWG0130243-A

Controlhead GM338 - PCB 8486155B06 / Schematics 4-11

THE LCD IS PART OF HARDWAREKITS GLN7358A (EUR) AND GLN7359A (US)

R0974

1.8MEG

R0973

1.2MEG

R0972

C0972

1uF

C0971

2.2uF

C0985

.01uF

1uF

C0984

C0973

0.1uF

C0980

0.1uF

C0976C0975

0.1uF

C0974

0.1uF

C0982

0.1uF

C0981C0979

0.1uF NU

0.1uF

C0977

100K

R0978

200K

R0977

100K

R0976

SEG69_C70

SEG6_C7

SEG7_C8

SEG8_C9

SEG9_C10

SEG61_C62

SEG62_C63

SEG63_C64

SEG64_C65

SEG65_C66

SEG66_C67

SEG67_C68

SEG68_C69

SEG54_C55

SEG55_C56

SEG56_C57

SEG57_C58

SEG58_C59

SEG59_C60

SEG5_C6

SEG60_C61

SEG47_C48

SEG48_C49

SEG49_C50

SEG4_C5

SEG50_C51

SEG51_C52

SEG52_C53

SEG53_C54

SEG3_C4

SEG40_C41

SEG41_C42

SEG42_C43

SEG43_C44

SEG44_C45

SEG45_C46

SEG46_C47

SEG32_C33

SEG33_C34

SEG34_C35

SEG35_C36

SEG36_C37

SEG37_C38

SEG38_C39

SEG39_C40

SEG25_C26

SEG26_C27

SEG27_C28

SEG28_C29

SEG29_C30

SEG2_C3

SEG30_C31

SEG31_C32

SEG18_C19

SEG19_C20

SEG1_C2

SEG20_C21

SEG21_C22

SEG22_C23

SEG23_C24

SEG24_C25

SEG10_C11

SEG11_C12

SEG12_C13

SEG13_C14

SEG14_C15

SEG15_C16

SEG16_C17

SEG17_C18

COM3_R4

COM4_R5

COM5_R6

COM6_R7

COM7_NC

COMS

SEG0_C1

04B01

H0971

COM0_R1

COM1_R2

COM2_R3

5V5

7VDD

8VOUT

6VR

13 VSS

17 WR

SEG8 58

SEG9

16 SR1

15 SR2

1V1

2V2

3V3

4V4

121

SEG72 122

SEG73 123

SEG74 124

SEG75 125

SEG76 126

SEG77 127

SEG78 128

SEG79

114

SEG65 115

SEG66 116

SEG67 117

SEG68 118

SEG69

SEG7

119

SEG70 120

SEG71

107

SEG58 108

SEG59

SEG6

109

SEG60 110

SEG61 111

SEG62 112

SEG63 113

SEG64

SEG50 100

SEG51 101

SEG52 102

SEG53 103

SEG54 104

SEG55 105

SEG56 106

SEG57

SEG43 93

SEG44 94

SEG45 95

SEG46 96

SEG47 97

SEG48

SEG49 98

SEG5

SEG36 86

SEG37 87

SEG38 88

SEG39

SEG4

SEG40 90

SEG41 91

SEG42

SEG29

SEG3

SEG30 80

SEG31 81

SEG32 82

SEG33 83

SEG34 84

SEG35

SEG21 71

SEG22 72

SEG23 73

SEG24 74

SEG25 75

SEG26 76

SEG27 77

SEG28

SEG14 64

SEG15 65

SEG16 66

SEG17 67

SEG18 68

SEG19

SEG2

SEG20

14 M_S

18 RD

SEG0 50

SEG1

SEG10 60

SEG11 61

SEG12 62

SEG13

25 D1

26 D2

27 D3

28 D4

29 D5

30 D6

31 D7

22 FR

COM6 39

COM7

COM8 41

COM9

COMS

20 CS1

19 CS2

24 D0

COM12 45

COM13 46

COM14 47

COM15

COM2 35

COM3 36

COM4 37

COM5

12 CAP1_POS

9CAP2_NEG

10 CAP2_POS

23 CL

COM0 33

COM1

COM10 43

COM11

SED1526F0A

U0971

21 A0

11 CAP1_NEG

C0978

0.1uF

TP0974

TP0973

TP0975

TP0972

TP0971

2.2uF

C0983

200K

R0975

RESET 5VCH_KP_ID(0:7)

LED_CNTRL(0:8)

VOLTAGE_SENSE

Controlhead GM338 - Schematic Sheet 4 of 4

ZWG0130244-A

4-12 Controlhead GM338 - PCB 8486155B06 / Schematics

Controlhead PCB 8486155B06 Parts List

* Motorola Depot Servicing only

Reference designators with an asterisk indicate

components which are not fieldreplaceable

because they need to be calibrated with

specialized factory equipment after installation.

Radios in which these parts have been replaced in

the field will be off frequency at temperature

extremes.

Circuit

Ref Motorola

Part No Description

C0803 2113741F17 470pF 50V

C0804 2113741F17 470pF 50V

C0805 2113740F49 82pF 5% 50V NP0

C0807 2113741F17 470pF 50V

C0811 2113741F17 470pF 50V

C0812 2113741F17 470pF 50V

C0813 2113741F17 470pF 50V

C0815 2113741F17 470pF 50V

C0816 2113741F17 470pF 50V

C0817 2113740F49 82pF 5% 50V

C0822 2311049A40 TANT CP 2.2uF 10% 10V

C0823 2113741F49 10nF 50V

C0831 2311049A42 TANT CP 3.3uF 10% 6V

C0832 2113743E20 100nF 16V

C0843 2311049A40 TANT CP 2.2uF 10% 10V

C0931 2113743E20 100nF 16V

C0933 2113743E20 100nF 16V

C0971 2311049A07 TANT CP 1uF 10% 16V

C0973 2311049A07 TANT CP 1uF 10% 16V

C0974 2113743E20 100nF 16V

C0975 2113743E20 100nF 16V

C0976 2113743E20 100nF 16V

C0978 2113743E20 100nF 16V

C0980 2113743E20 100nF 16V

C0983 2311049A09 TANT CP 2.2uF 10% 20V

C0984 2113741F49 10nF 50V

C0985 2311049A40 TANT CP 2.2uF 10% 10V

D0821 4813833C02 DIODE DUAL SOT

MMBD6100

D0822 4813833C02 DIODE DUAL SOT

MMBD6100

D0831 4880236E05 DIODE CHIP SCHOTTKY

D0877 4886171B01 LED RED

D0879 4886171B04 LED GREEN

D0880 4886171B03 LED YELLOW

D0951 4886171B02

Not used in LED ORANGE

Controlhead B

D0952 4886171B02

Not used in LED ORANGE

Controlhead B

D0953 4886171B02

Not used in LED ORANGE

Controlhead B

D0954 4886171B02

Not used in LED ORANGE

Controlhead B

D0965 4886171B04 LED GREEN

D0966 4886171B04 LED GREEN

D0967 4886171B04 LED GREEN

D0968 4886171B04 LED GREEN

D0969 4886171B04 LED GREEN

D0970 4886171B04 LED GREEN

D0971 4886171B04 LED GREEN

D0972 4886171B04 LED GREEN

D0973 4886171B04 LED GREEN

D0974 4886171B04 LED GREEN

D0975 4886171B04 LED GREEN

D0976 4886171B04 LED GREEN

D0977 4886171B04 LED GREEN

D0978 4886171B04 LED GREEN

D0979 4886171B04 LED GREEN

D0980 4886171B04 LED GREEN

D0981 4886171B04

Not used in LED GREEN

Controlhead B

D0982 4886171B04

Not used in LED GREEN

Controlhead B

D0983 4886171B04

Not used in LED GREEN

Controlhead B

D0984 4886171B04

Not used in LED GREEN

Controlhead B

D0985 4886171B04 LED GREEN

D0986 4886171B04 LED GREEN

D0987 4886171B04 LED GREEN

D0988 4886171B04 LED GREEN

J0801 0902636Y02 CONNECTOR FLEX 12 PIN

J0811 2864287B01 CONN TELCO 10 PIN JACK

P0801 2809926G01 CONN 1.25MM 2PIN SUR MT

Q0821 4805921T02 TSTR DUAL ROHM FMC2 RH

Q0822 4880048M01 TSTR NPN DIG 47k/47k

Q0823 4805921T02 TSTR DUAL ROHM FMC2 RH

Q0841 4880048M01 TSTR NPN DIG 47k/47k

Q0843 4880048M01 TSTR NPN DIG 47k/47k

Q0877 4813824A10 TSTR NPN 40V .2A B=50-150

Q0878 4813824A10 TSTR NPN 40V .2A B=50-150

Q0879 4813824A10 TSTR NPN 40V .2A B=50-150

Q0933 4813822A08 TSTR PNP 25V 5AMJD210T4

Q0934 4813824A10 TSTR NPN 40V .2A B=50-150

R0810 0662057A76 13k 1/16W 5%

R0811 0662057A90 51k 1/16W 5%

R0812 0662057A09 22 1/16W 5%

R0813 0662057A01 10 1/16W 5%

R0814 0662057A35 270 1/16W 5%

R0815 0662057A76 13k 1/16W 5%

R0816 0662057A90 51k 1/16W 5%

R0817 0662057A09 22 1/16W 5%

R0821 0662057A73 10k 1/16W 5%

R0822 0662057A81 22k 1/16W 5%

R0823 1805911V02 POT VOL

R0824 0662057A65 4k7 1/16W 5%

R0825 0662057A49 1k 1/16W 5%

R0831 0662057B22 1M 1/16W 5%

R0832 0662057A57 2k2 1/16W 5%

Circuit

Ref Motorola

Part No Description

R0833 0662057A89 47k 1/16W 5%

R0834 0662057A35 270 1/16W 5%

R0835 0662057A25 100 1/16W 5%

R0836 0662057A73 10k 1/16W 5%

R0837 0662057A85 33k 1/16W 5%

R0838 0662057A73 10k 1/16W 5%

R0841 0662057A73 10k 1/16W 5%

R0842 0662057A89 47k 1/16W 5%

R0843 0662057A57 2.2k 1/16W 5%

R0844 0662057A73 10k 1/16W 5%

R0845 0662057A65 4k7 1/16W 5%

R0847 0662057A93 68k 1/16W 5%

R0849 0662057A89 47k 1/16W 5%

R0853 0662057A89 47k 1/16W 5%

R0855 0662057A89 47k 1/16W 5%

R0856 0662057A89 47k 1/16W 5%

R0857 0662057A89

Not used in 47k 1/16W 5%

Controlhead C

R0858 0662057A89

Not used in 47k 1/16W 5%

Controlhead B

R0859 0662057A89 47k 1/16W 5%

R0860 0662057A97 100k 1/16W

R0861 0662057A97 100k 1/16W

R0862 0662057A97 100k 1/16W

R0863 0662057A65 4k7 1/16W 5%

R0864 0662057A65 4k7 1/16W 5%

R0865 0662057A65 4k7 1/16W 5%

R0877 0660076A35 270 5 1/8

R0878 0660076A35 270 5 1/8

R0879 0660076A35 270 5 1/8

R0901 0662057A90 51k 1/16W 5%

R0902 0662057A76 13k 1/16W 5%

R0903 0662057A81 22k 1/16W 5%

R0904 0662057A88 43k 1/16W 5%

R0906 0662057A90 51k 1/16W 5%

R0907 0662057A76 13k 1/16W 5%

R0908 0662057A81 22k 1/16W 5%

R0909 0662057A88

Not used in 43k 1/16W 5%

Controlhead B

R0935 0662057A73 10k 1/16W 5%

R0936 0662057A73 10k 1/16W 5%

R0937 0660076A01 10 5 1/8

R0941 0662057A73 10k 1/16W 5%

R0942 0662057A85 33k 1/16W 5%

R0943 0662057A65 4k7 1/16W 5%

R0944 0662057A97 100k 1/16W

R0945 0662057A73 10k 1/16W 5%

R0946 0662057A73 10k 1/16W 5%

R0947 0660076A01 10 5 1/8

R0948 0660076A01 10 5 1/8

R0972 0662057B47 0 1/16W

Circuit

Ref Motorola

Part No Description

R0973 0662057B24 1.2M 1/16W 5%

R0974 0662057B28 1.8M 1/16W 5%

R0975 0662057G29 200k 0.1W 1%

R0976 0662057G13 100k 0.1W 1%

*U0831 5113802A24 IC 68HC11 W/SCI,SPI,A/D

U0832 5113815A02 MC33064

UNDER VLTG SENSING

U0833 4886061B01 CER RESONATOR 8MHZ

CSTCC8.00MG

U0834 5185963A15 TEMP SENSOR 1M5

U0931 5113818A03 IC HIGH PERFORMANCE SI

U0971 5186158B01 LCD DRIVER SED1526F0A

VR0812 4813830A15 DIODE 5.6V 5% 225mW

VR0816 4805656W09 DIODE ZENER QUAD

MMQA20VT1

VR0817 4805656W09 DIODE ZENER QUAD

MMQA20VT1

VR0821 4813830A23 DIODE 10V 5% 20mA 350mW

VR0822 4813830A15 DIODE 5.6V 5% 225mW

Circuit

Ref Motorola

Part No Description

Controlhead GM398 - PCB 8486178B03 / Schematics 4-13

4.0 Controlhead GM398 - PCB 8486178B03 / Schematics

ZWG0130368-A

D0941

D0942

D0943

D0944

D0945

D0946

D0947

D0948

D0949

D0950

D0951

D0952

D0953

D0954

D0955

D0956

D0957

D0958

D0959

D0960

D0961

D0962

D0963

D0964

D0965

D0966

D0967

D0968

D0969

D0970

D0971

D0972

D0973

D0974

D0975

D0976

D0977

D0978

D0979

D0980

D0981

D0982

D0983

D0984

D0985

D0986

D0987

D0988

D0989

D0990

D0991 D0992 D0993

3579

864 10

123

S0901

S0902

S0903 S0904 S0905

S0906

S0907

S0908 S0909 S0910

S0911

S0912

S0913 S0914 S0915

S0916

S0917

S0918 S0919 S0920

S0921

S0922

S0923 S0924 S0925

S0931 S0932 S0933 S0934 S0935

J0811

Microphone

Connector

R0854

Volume

Pot

C0802

C0803

C0804

C0805

C0806

C0807

C0808

C0810

C0811

C0812 C0813

C0815

C0816

C0817

C0818

C0819

C0823

C0824

C0825

C0826

C0827

C0828

C0829

C0830

C0831

C0832

C0833

C0834

C0835

C0836

C0837

C0838

C0840

C0851

C0853

C0855

C0856

C0861

C0862

C0863

C0864

C0865

C0866

C0870

C0871

C0872

C0873

C0874

C0875

C0941

C0942

C0943

C0944

C0945

C0946

C0963

C0964

C0965

C0966

C0991

D0852

D0855

D0861

D0871

D0872

24 1

2P0801

Q0851

Q0852

Q0853

Q0866 Q0871

Q0872

Q0941

Q0942

Q0943

Q0944

Q0961

Q0962

Q0963

Q0964

Q0991

Q0992

Q0993

R0811

R0812 R0813

R0814

R0815

R0816

R0817

R0818

R0821

R0822

R0823

R0824

R0825

R0826

R0827

R0828

R0831

R0832

R0833

R0834

R0835

R0836

R0837

R0838

R0840

R0852

R0853

R0855 R0856

R0861

R0862

R0863

R0866

R0870

R0871

R0872

R0873

R0874

R0875

R0876

R0877

R0878

R0879

R0880

R0881

R0882

R0883

R0884

R0885

R0886

R0887

R0888

R0889

R0890

R0901

R0902

R0903

R0904

R0905

R0911

R0912

R0913

R0914

R0915

R0931

R0932

R0933

R0934

R0935

R0941

R0942

R0943

R0944

R0945

R0946

R0947

R0948

R0949

R0950

R0951

R0952

R0953

R0954

R0955

R0956

R0957

R0958

R0961

R0962

R0963

R0964

R0965

R0966

R0967

R0968

R0969

R0970

R0971

R0972

R0973

R0974

R0975

R0976

R0977

R0978

R0991

R0992

R0993

R0995

R0996

R0997

SH0871

SH0872

TP0804

TP0821

TP0866

TP0871

TP0872

TP0873

TP0874

TP0875

TP0876

TP0877

TP0878

U0861

32 17

U0873

U0941

U0942

VR0811

VR0812

VR0813

VR0814

VR0851 VR0855

J0801

Radio

Box

J0821

to LCD -Module

U0871

HC11K4

µP

U0872

FLASH

U0874

EEPROM

U0875

SRAM

MOTOROLA 99

8486178B03-T1

Controlhead GM398 - PCB 8486178B03

ZWG0130368-A Top Side

ZWG0130369-B Bottom Side

4-14 Controlhead GM398 - PCB 8486178B03 / Schematics

ZWG0130370-A

OUT

CONTROLLER

OUT

CLOSED

BOOT_MODE

BOOT_VPP

ARCHITECTURE

R0871

BOOT_SCI_RX

BOOT_SCI_TX

BOOT_PWR

BOOT_GND

RESET

BOOT_PWR_ON

OPEN

R0872

R0876

R0877

R0878

R0879

OUT

D0871

0.1uF

C0870

TP0876

TP0871

33K

R0889

10K

R0888

10K

R0887

C0856

2.2uF

0.1uF

C0875

4.7K

R0871

SH0872

SHIELD

VCC

SH0871

SHIELD

IO1 11

IO2 12

IO3 13

IO4 15

IO5 16

IO6 17

IO7 18

IO8 19

EN_CS

EN_OE

EN_WE

GND

A11

A12

A13

A14

U0875

A10

21 NU

D0872

C0861

0.1uF 10uF

C0862

R0866

10K

0.1uF

C0874

0.1uF

IO7

VCC

C0865

GND

IO0 22

IO1 23

IO2 25

IO3 26

IO4 27

IO5 28

IO6

15 A5

14 A6

13 A7

3A8

2A9

30 EN_CE

32 EN_OE

7EN_WE

5A14

11 A15

10 A16

6A17

9A18

18 A2

17 A3

16 A4

20 A0

19 A1

31 A10

1A11

12 A12

4A13

U0872

.01uF

C0851

VR0851

10V

VRH 51

VRL 50

VSS

VSS1

VSS3

XIRQ

XTAL 74

PH4_CSIO 26

PH5_CSGP1 27

PH6_CSGP2 28

PH7_CSPROG 29

RESET

VDD 12

VDD1 31

VDD2

PG4_XA17

PG5_XA18

PG6 34

PG7_R_W*

PH0_PW1 22

PH1_PW2 23

PH2_PW3 24

PH3_PW4

PF5_ADDR5 55

PF6_ADDR6 54

PF7_ADDR7 53

PFO_ADDR0 60

PG0_XA13

PG1_XA14

PG2_XA15

PG3_XA16

PE4_AN4

PE5_AN5

PE6_AN6

PE7_AN7

PF1_ADDR1 59

PF2_ADDR2 58

PF3_ADDR3 57

PF4_ADDR4

PD2_MISO

PD3_MOSI

PD4_SCK

PD5_SS*

PE0_AN0

PE1_AN1

PE2_AN2

PE3_AN3

PC2_DATA2 64

PC3_DATA3 65

PC4_DATA4 66

PC5_DATA5 67

PC6_DATA6 68

PC7_DATA7 69

PD0_RXD

PD1_TXD

PB3_ADDR11 18

PB4_ADDR12 17

PB5_ADDR13 16

PB6_ADDR14 15

PB7_ADDR15 14

PBO_ADDR8 21

PC0_DATA0 62

PC1_DATA1

10 PA2_IC1

9PA3_IC4_OC5_OC1

8PA4_OC4_OC1

7PA5_OC3_OC1

6PA6_OC2_OC1

5PA7_PA1_OC1

PB1_ADDR9 20

PB2_ADDR10

AVSS

EXTAL 73

IRQ

MODA_LIR*

MODB_VSTBY

PA0_IC3

11 PA1_IC2

MC68HC11K4

U0871

AVDD

TP0872

GND 2

TP0878

U0873

CSTCC8.00MG

R0886

47K

2.2K

R0870

D0861

R0862

R0861

ERROR

FEEDBACK

GND

INPUT

OUTPUT

SENSE

SHUTDOWN

LP2951C

U0861

5V_TAP

6CLK

1CS

7HOLD

5SI

VCC

VSS

3WP

X25320_2.7V

U0874

Q0872

100K

R0863

R0877

VR0855

5.6V

17 6

R0875

47K

R0855

24K 14

0.1uF

C0872

R0890

270

C0864

47uF

Q0852

R0874

R0881

100

10K

Q0871

Q0853

R0852

R0879

POS

TAB

TAB1

VAR

R0854

50K

NEG

4.7K

R0856

C0855

470pF

R0872

R0880

2.2K

1MEG

R0873

TP0866

C0873

0.1uF

R0876

R0878

.022uF

C0863

.01uF

C0853

R0882

47K

D0855

10K

R0883 R0884

10K

0.1uF TP0877

C0866

TP0873

10K

R0885

Q0866

TP0875

D0852

Q0851

3.3uF

C0871

R0853

10K

TP0874

CH_REQUEST

SCI_TX

BUS+

LCD_RW_WR

LCD_DATA_(0:7)

RESET

FLT_A+

ON_OFF_CONTROL

PTT_IRDEC

VOLTAGE_SENSE

USW_5V

KEYPAD_ID

BL_LCD_RED

BL_KP_RED

BL_LCD_GREEN

BL_KP_GREEN

LCD_CS

LCD_A0

LED_RED

LED_YELLOW

LED_GREEN

LCD_E_RD

RESET

FLT_A+

5V_SOURCE

INT_KP_COL

INT_KP_ROW

EXT_KP_COL

EXT_KP_ROW

VOLUME

TEMP_SENSE

PTT_IRDEC ADDR(0:18)

FLT_A+

CH_REQUEST

FLT_A+

USW_5V

VOLUME

HOOK

ON_OFF_SENSE

Controlhead GM398 - Schematic Sheet 1 of 4

Controlhead GM398 - PCB 8486178B03 / Schematics 4-15

SW0924 P7

SW0925

DOWN

SW0903 2

SW0904

SW0910

SW0913 8

SW0914

SW0901 SW0906

1V/1V

1V/2V

1V/3V

3V/2V

3V/3V

SW0917

SW0911

SW0912

0V/0V

3V/4V

2V/0V

SW0918 0

SW0919

1V/4V

3V/0V

RIGHT

LEFT

SW0908 5

SW0909 2V/1V

2V/2V

4V/0V

4V/1V

4V/2V

4V/3V

4V/4V

789

SW0905

P3 P4

EXIT

SW0915

SW0902 SW0907

SW0916 SW0921

SW0922

2V/3V

2V/4V

0V/1V

0V/2V

0V/3V

0V/4V

1V/0V

P5 P6 P7

3V/1V

SW0920

SW0923

4P4

5P5

6P6

7P7

8P8

SWITCH

S0924

1P1

2P2

3P3

S0933

SWITCH

130K

R0915

130K

R0935

S0917

SWITCH

4P5

6P6

7P7

8P8

SWITCH

S0907

1P1

2P2

3P3

4P4

4P5

S0903

SWITCH

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0911

1P1

2P2

3P3

4P4

5P5

6P6

7P7

SWITCH

S0904

4P5

S0905

SWITCH

R0933

22K

R0914

43K

SWITCH

S0932

R0934

43K

R0931

51K NU

R0903R0902

22K13K

R0912

13K

R0932

13K

S0931

SWITCH

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0912

1P1

43K

R0904 R0905

130K

R0911

51K

R0901

R0913

22K

4P5

88 P8

S0910

SWITCH

11 P1

2P2

3P3

4P4

5P5

6P6

7P7P7

SWITCH

S0915

4P5

5P5

6P6

7P7

8P8

S0920

SWITCH

S0925

1P1

2P2

3P3

4P4

6P6

8P8

SWITCH

1P1

2P2

3P3

4P4

5P5 P4

4P5

S0916

S0906

SWITCH

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0923

1P1

2P2

4P5

88 P8

S0909

SWITCH

1P1

2P2

3P3

4P4

5P5

6P6

7P7

SWITCH

S0914

S0919

SWITCH

4P5

SWITCH

S0935

SWITCH

6P6

7P7

8P8

S0934

1P1

2P2

3P3

4P4

5P5

4P5

SWITCH

S0922S0921

SWITCH

3P3

4P5

S0901

SWITCH

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0902

6P6

7P7

8P8

1P1

2P2

3P3

4P4

5P5

6P6

7P7

8P8

SWITCH

S0908

SWITCH

S0913

1P1

2P2

3P3

4P5

S0918

SWITCH

INT_KP_ROW

INT_KP_COL

5V 5V

KEYPAD_ID

Controlhead GM398 - Schematic Sheet 2 of 4

ZWG0130371-A

4-16 Controlhead GM398 - PCB 8486178B03 / Schematics

Q0964

MC33072

U0942-2

Q0962

4.7K

R0967

100K

R0969

R0977

1010

R0975

0.1uF

C0965

D0958

D0946

NU D0960

D0948

R0957

D0981

68K

R0945

2.2uF

C0943

R0949

100K

D0947

R0948

4.7K R0950

100K

D0990

D0988

D0943

D0952

D0986

D0974

D0962

D0950

D0984

R0974

10K

R0972

10K

D0983

D0993

green

R0955

C0945

0.1uF

R0954

10K

R0952

10K

33K

R0944

10K

R0942

Q0944

U0942-1

MC33072

Q0942

R0973

10K

R0971

R0964

33K

Q0991

68K

R0965

D0971

D0959

D0977

D0965

D0953

D0941

R0947

4.7K

Q0992

R0962

10K

D0992

yellow

D0991

red

D0956

D0944

D0954

D0942

D0989

D0987

D0955

D0967

R0946

68K

C0944

2.2uF

R0963

R0961

33K

10K

Q0963

U0941-2

MC33072

Q0961

MC33072

U0941-1

Q0941

C0964

C0941

2.2uF

0.1uF

D0969

D0957

D0945

D0979

D0972

C0963

2.2uF

CH_D

sheet 3

R0966

68K

10K

R0953

R0951

10K

R0943

33K

10K

Q0943

R0941 D0949

D0961

D0982

D0970

C0991

470pF

C0942

D0975

0.1uF

D0963

D0951

D0985

D0973

R0956

C0946

0.1uF

D0980

D0968

270

R0991 R0992

R0958

D0978

D0966

R0968

4.7K

R0970

100K

R0978

R0976

10 NU

0.1uF NU

C0966

270

R0993

Q0993

R0997

47K47K

R0996R0995

47K

D0976

D0964

BL_KP_GREEN

BL_KP_RED

BL_LCD_GREEN

BL_LCD_RED

FLT_A+

FLT_A+FLT_A+

LED_RED

LED_YELLOW

LED_GREEN

FLT_A+

BL_A_GREENFLT_A+

BL_K_GREEN

BL_A_REDFLT_A+

BL_K_RED

FLT_A+

ZWG0130372-A

Controlhead GM398 - Schematic Sheet 3 of 4

ZWG0130372-A

Controlhead GM398 - PCB 8486178B03 / Schematics 4-17

ANALOG_INPUT_2

J0821

GND

VDD

MIC

Backlight_Anode GREEN

Backlight_Anode RED

CS1

CS2

A0 (Command)

CONNECTOR

HANDSET_AUDIO

ANALOG_INPUT_3

CONTROLHEAD

CONNECTOR

GND

Voltage_Sense

Backlight_Cathode RED

Backlight_Cathode GREEN

GND

HOOK

GROUND

Temp_Sense

Reset

Temp_Sense

Voltage_Sense

FLT_A+

R/W (WR)

E (RD)

PTT_IRDECODER

BUS+

J0801

LCD MODULE

R0822

470pF

C0804

C0835

100pF100pF

C0834

100pF

NUNU

C0833

100pF

C0832

R0815

100pF

C0827C0826

100pF

C0825

J0801-14

100pF

J0801-1

J0801-2

J0801-3

J0821-25

J0821-24

J0821-10

R0833

100

R0832

100

J0821-21

J0801-5

J0821-20

J0801-6

J0801-7

100pF

C0816

C0824

J0811-8

470pF

J0811-7

J0811-6

J0821-13

J0821-11

J0821-12

J0801-9

J0801-12

P0801-2

P0801-1

J0801-8

J0811-10

C0815

470pF

C0813

C0811 470pF

470pF

R0816

270

R0817

13K

R0812

13K

C0805

82pF

VR0814

20V

VR0813

20V

R0838

100

R0834

R0831

100

R0828

100

J0801-4

R0826

100

R0825

100

R0824

J0821-23

C0806

470pF

C0807

VR0812

5.6V

J0801-13

470pF

C0812

R0814

C0836

C0808

100pF

82pF

R0813

J0821-4

J0821-2

J0821-3

J0811-9

C0823

NU NU

100pF NU 100pF

C0829C0828

100pF

R0840

100

J0811-5

R0837

100

R0836

100

R0835

100

C0817

R0818

82pF

51K

R0827

100

J0821-18

J0821-17

J0821-16

J0821-14

R0821

R0823

51K

R0811

J0821-5

J0821-1

J0821-9

J0821-7

J0821-8

J0821-6

C0831

100pF

470pF

C0810

NU 470pF

C0819

470pF

C0818

C0830

100pF

J0821-22

C0840

100pF

C0838

100pF

NU 100pF

J0821-26

C0837

J0811-4

J0811-3

J0811-1

J0811-2

TP0821

J0821-15

TP0804

VR0811

33V

J0801-10

J0801-11

J0821-19

470pF

C0802

C0803

EXT_KP_ROW

MIC

FLT_A+

EXT_KP_COL

HOOK

470pF

LCD_CS

RESET

LCD_DATA_(0:7)

VOLTAGE_SENSE

TEMP_SENSE

BL_A_GREEN

BL_A_RED

BL_K_GREEN

BL_K_RED

LCD_A0

LCD_RW_WR

LCD_E_RD

PTT_IRDEC

HANDSET_AUDIO

BUS+

SCI_TX

5V_SOURCE

HANDSET_AUDIO

BUS+

MIC

FLT_A+

ON_OFF_CONTROL

WARIS

9GM300

MICROPHONE

12567810

J0811

CONNECTOR

Controlhead GM398 - Schematic Sheet 4 of 4

ZWG0130373-A

4-18 Controlhead GM398 - PCB 8486178B03 / Schematics

Controlhead PCB 8486178B03 Parts List

Circuit

Ref Motorola

Part No Description

C0803 2113741F17 470pF 50V

C0804 2113741F17 470pF 50V

C0805 2113740F49 82pF 5% 50V

C0807 2113741F17 470pF 50V

C0811 2113741F17 470pF 50V

C0812 2113741F17 470pF 50V

C0813 2113741F17 470pF 50V

C0815 2113741F17 470pF 50V

C0816 2113741F17 470pF 50V

C0817 2113740F49 82pF 5% 50V

C0851 2113741F49 10nF 50V

C0856 2311049A40 TANT CP 2.2uF 10% 10V

C0861 2113743E20 100nF 16V

C0862 2311049A45 TANT CP 10uF 10% 35V

C0863 2113743E07 22nF 16V

C0864 2311049A99 TANT CP 47uF 20% 10V

C0865 2113743E20 100nF 16V

C0866 2113743E20 100nF 16V

C0871 2311049A42 TANT CP 3.3uF 10% 6V

C0873 2113743E20 100nF 16V

C0941 2113743E20 100nF 16V

C0942 2113743E20 100nF 16V

C0943 2311049A40 TANT CP 2.2uF 10% 10V

C0944 2311049A40 TANT CP 2.2uF 10% 10V

C0945 2113743E20 100nF 16V

C0946 2113743E20 100nF 16V

C0963 2311049A40 TANT CP 2.2uF 10% 10V

C0964 2311049A40 TANT CP 2.2uF 10% 10V

C0965 2113743E20 100nF 16V

C0966 2113743E20 100nF 16V

D0852 4813833C02 DUAL SOT MMBD6100

D0855 4813833C02 DUAL SOT MMBD6100

D0861 4813833C02 DUAL SOT MMBD6100

D0871 4813833C02 DUAL SOT MMBD6100

D0872 4880236E05 DIODECHIP SCHOTTKY

D0941 4886171B04 LED GREEN

D0942 4886171B01 LED RED

D0943 4886171B04 LED GREEN

D0944 4886171B01 LED RED

D0945 4886171B04 LED GREEN

D0946 4886171B01 LED RED

D0947 4886171B04 LED GREEN

D0948 4886171B01 LED RED

D0949 4886171B04 LED GREEN

D0950 4886171B01 LED RED

D0951 4886171B04 LED GREEN

D0952 4886171B01 LED RED

D0953 4886171B04 LED GREEN

D0954 4886171B01 LED RED

D0955 4886171B04 LED GREEN

D0956 4886171B01 LED RED

D0957 4886171B04 LED GREEN

D0958 4886171B01 LED RED

D0959 4886171B04 LED GREEN

D0960 4886171B01 LED RED

D0961 4886171B04 LED GREEN

D0962 4886171B01 LED RED

D0963 4886171B04 LED GREEN

D0964 4886171B01 LED RED

D0965 4886171B04 LED GREEN

D0966 4886171B01 LED RED

D0967 4886171B04 LED GREEN

D0968 4886171B01 LED RED

D0969 4886171B04 LED GREEN

D0970 4886171B01 LED RED

D0971 4886171B04 LED GREEN

D0972 4886171B01 LED RED

D0973 4886171B04 LED GREEN

D0974 4886171B01 LED RED

D0975 4886171B04 LED GREEN

D0976 4886171B01 LED RED

D0977 4886171B04 LED GREEN

D0978 4886171B01 LED RED

D0979 4886171B04 LED GREEN

D0980 4886171B01 LED RED

D0981 4886171B04 LED GREEN

D0982 4886171B01 LED RED

D0983 4886171B04 LED GREEN

D0984 4886171B01 LED RED

D0985 4886171B04 LED GREEN

D0986 4886171B01 LED RED

D0987 4886171B04 LED GREEN

D0988 4886171B01 LED RED

D0989 4886171B04 LED GREEN

D0990 4886171B01 LED RED

D0991 4886171B01 LED RED

D0992 4886171B03 LED YELLOW

D0993 4886171B04 LED GREEN

J0801 0902636Y02 CONN FLEX 12 PIN

J0811 2864287B01 CONN TELCO 10 PIN JACK

J0821 0986197B01 CONN ZIF HOR 24PIN

P0801 2809926G01 CONN1.25MM 2PIN SUR MT

Q0851 4805921T02 DUAL ROHM FMC2 RH

Q0852 4805921T02 DUAL ROHM FMC2 RH

Q0853 4880048M01 NPN DIG 47k/47k

Q0866 4880048M01 NPN DIG 47k/47k

Q0871 4880048M01 NPN DIG 47k/47k

Q0872 4880048M01 NPN DIG 47k/47k

Q0941 4813822A08 PNP 25V 5A MJD210T4

Circuit

Ref Motorola

Part No Description

Q0942 4813822A08 PNP 25V 5A MJD210T4

Q0943 4813824A10 NPN 40V .2A B=50-150

Q0944 4813824A10 NPN 40V .2A B=50-150

Q0961 4813822A08 PNP 25V 5A MJD210T4

Q0962 4813822A08 PNP 25V 5A MJD210T4

Q0963 4813824A10 NPN 40V .2A B=50-150

Q0964 4813824A10 NPN 40V .2A B=50-150

Q0991 4813824A10 NPN 40V .2A B=50-150

Q0992 4813824A10 NPN 40V .2A B=50-150

Q0993 4813824A10 NPN 40V .2A B=50-150

R0811 0662057A90 51k 1/16W 5%

R0812 0662057A76 13k 1/16W 5%

R0813 0662057A09 22 1/16W 5%

R0814 0662057A09 22 1/16W 5%

R0815 0662057A01 10 1/16W 5%

R0816 0662057A35 270 1/16W 5%

R0817 0662057A76 13k 1/16W 5%

R0818 0662057A90 51k 1/16W 5%

R0821 0662057B47 0 1/16W

R0823 0662057B47 0 1/16W

R0825 0662057A25 100 1/16W 5%

R0826 0662057A25 100 1/16W 5%

R0827 0662057A25 100 1/16W 5%

R0828 0662057A25 100 1/16W 5%

R0831 0662057A25 100 1/16W 5%

R0832 0662057A25 100 1/16W 5%

R0833 0662057A25 100 1/16W 5%

R0834 0662057A25 100 1/16W 5%

R0835 0662057A25 100 1/16W 5%

R0836 0662057A25 100 1/16W 5%

R0837 0662057A25 100 1/16W 5%

R0838 0662057A25 100 1/16W 5%

R0840 0662057A25 100 1/16W 5%

R0852 0662057A49 1k 1/16W 5%

R0853 0662057A73 10k 1/16W 5%

R0854 1805911V02 POT VOL

R0855 0662057A82 24K 1/16W 5%

R0856 0662057A65 4k7 1/16W 5%

R0861 0662057A01 10 1/16W 5%

R0862 0662057A01 10 1/16W 5%

R0863 0662057A97 100k 1/16W

R0866 0662057A73 10k 1/16W 5%

R0870 0662057A57 2k2 1/16W 5%

R0872 0662057B47 0 1/16W

R0873 0662057B22 1M 1/16W 5%

R0874 0662057A25 100 1/16W 5%

R0875 0662057A89 47k 1/16W 5%

R0876 0662057B47 0 1/16W

R0878 0662057B47 0 1/16W

R0880 0662057A57 2k2 1/16W 5%

R0881 0662057A73 10k 1/16W 5%

Circuit

Ref Motorola

Part No Description

R0882 0662057A89 47k 1/16W 5%

R0883 0662057A73 10k 1/16W 5%

R0884 0662057A73 10k 1/16W 5%

R0885 0662057A73 10k 1/16W 5%

R0886 0662057A89 47k 1/16W 5%

R0887 0662057A73 10k 1/16W 5%

R0888 0662057A73 10k 1/16W 5%

R0889 0662057A85 33k 1/16W 5%

R0890 0662057A35 270 1/16W 5%

R0901 0662057A90 51k 1/16W 5%

R0902 0662057A76 13k 1/16W 5%

R0903 0662057A81 22k 1/16W 5%

R0904 0662057A88 43k 1/16W 5%

R0905 0662057B01 130K 1/16W 5%

R0911 0662057A90 51k 1/16W 5%

R0912 0662057A76 13k 1/16W 5%

R0913 0662057A81 22k 1/16W 5%

R0914 0662057A88 43k 1/16W 5%

R0915 0662057B01 130K 1/16W 5%

R0931 0662057A90 51k 1/16W 5%

R0932 0662057A76 13k 1/16W 5%

R0933 0662057A81 22k 1/16W 5%

R0941 0662057A73 10k 1/16W 5%

R0942 0662057A73 10k 1/16W 5%

R0943 0662057A85 33k 1/16W 5%

R0944 0662057A85 33k 1/16W 5%

R0945 0662057A93 68k 1/16W 5%

R0946 0662057A93 68k 1/16W 5%

R0947 0662057A65 4k7 1/16W 5%

R0948 0662057A65 4k7 1/16W 5%

R0949 0662057A97 100k 1/16W

R0950 0662057A97 100k 1/16W

R0951 0662057A73 10k 1/16W 5%

R0952 0662057A73 10k 1/16W 5%

R0953 0662057A73 10k 1/16W 5%

R0954 0662057A73 10k 1/16W 5%

R0955 0660076A01 10 5 1/8

R0956 0660076A01 10 5 1/8

R0957 0660076A01 10 5 1/8

R0958 0660076A01 10 5 1/8

R0961 0662057A73 10k 1/16W 5%

R0962 0662057A73 10k 1/16W 5%

R0963 0662057A85 33k 1/16W 5%

R0964 0662057A85 33k 1/16W 5%

R0965 0662057A93 68k 1/16W 5%

R0966 0662057A93 68k 1/16W 5%

R0967 0662057A65 4k7 1/16W 5%

R0968 0662057A65 4k7 1/16W 5%

R0969 0662057A97 100k 1/16W

R0970 0662057A97 100k 1/16W

R0971 0662057A73 10k 1/16W 5%

Circuit

Ref Motorola

Part No Description

Controlhead GM398 - PCB 8486178B03 / Schematics 4-19

* Motorola Depot Servicing only

Reference designators with an asterisk indicate

components which are not fieldreplaceable

because they need to be calibrated with

specialized factory equipment after installation.

Radios in which these parts have been replaced in

the field will be off frequency at temperature

extremes.

R0972 0662057A73 10k 1/16W 5%

R0973 0662057A73 10k 1/16W 5%

R0974 0662057A73 10k 1/16W 5%

R0975 0660076A01 10 5 1/8

R0976 0660076A01 10 5 1/8

R0977 0660076A01 10 5 1/8

R0978 0660076A01 10 5 1/8

R0991 0660076A35 270 5 1/8

R0992 0660076A35 270 5 1/8

R0993 0660076A35 270 5 1/8

R0995 0662057A89 47k 1/16W 5%

R0996 0662057A89 47k 1/16W 5%

R0997 0662057A89 47k 1/16W 5%

U0861 5105469E65 IC VLTG REGLTR LP2951C

*U0871 5113802A32 68HC11 W/SCI SPI A/D

U0873 4886061B01 CER RESONATOR 8MHZ

U0941 5113818A03 IC HIGH PERFORMANCE SI

U0942 5113818A03 IC HIGH PERFORMANCE SI

VR0812 4813830A15 DIODE 5.6V 5% 225mW

VR0813 4805656W09 ZENER QUAD MMQA20VT1

VR0814 4805656W09 ZENER QUAD MMQA20VT1

VR0851 4813830A23 DIODE 10V 5% 20mA 350mW

VR0855 4813830A15 DIODE 5.6V 5% 225mW

Circuit

Ref Motorola

Part No Description

4-20 Controlhead GM398 - PCB 8486178B03 / Schematics

THIS PAGE INTENTIONALLY LEFT BLANK

GM328/GM338/GM398

Mobile Radios

Controller

Service Information

Issue: December, 2003