Motorola GM-300_series_basic Service manual

Professional Radio

GM300 Series

Basic Service Manual

68P64115B51

Issue: July 2000

ii

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

Read this information before using your radio.

SAFE AND EFFICIENT OPERATION OF MOTOROLA TWO-WAY RADIOS

This document provides information and instructions for the safe and efficient operation of Motorola
Portable and Mobile Two-Way Radios. The information provided in this document supersedes the
general safety information contained in user guides published prior to 1 January 1998.

For information regarding radio use in hazardous areas, please refer to the Factory Mutual (FM)
approval manual supplement.

EXPOSURE TO RADIO FREQUENCY ENERGY

Your Motorola Two-Way Radio, which generates and radiates radio frequency (RF) electromagnetic
energy (EME), is designed to comply with the following National and International Standards and
Guidelines regarding exposure of human beings to radio frequency electromagnetic energy:



Federal Communications Commission Report and Order No. FCC 96-326 (August 1996)



American National Standards Institute (C95.1 - 1992)



National Council on Radiation Protection and Measurements (NCRP-1986)



International Commission on Non-Ionizing Radiation Protection (ICNRP- 1986)



European Committee for Electrotechnical Standardization (CENELEC):

iii

ENV 50166-1 1995 E Human exposure to electromagnetic fields Low

frequency (0 Hz to 10 kHz)

- ENV 50166-2 1995 E Human exposure to electromagnetic fields High
frequency (10 kHz to 300 GHz)

- Proceedings of SC211/B

1996

“Safety Considerations for Human Exposure to

EMFs from Mobile Telecommunication Equipment
(MTE) in the Frequency Range 30MHz - 6 GHz.”
(EMF - Electro-Magnetic Fields)

To assure optimal radio performance and to ensure that your exposure to radio frequency
electromagnetic energy is within the guidelines in the above standards, always adhere to the following
procedures:

ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

NOTE

Nearly every electronic device is susceptible to electromagnetic interference (EMI) if
inadequately shielded, designed, or alternately configured for electromagnetic compatibility.



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



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

Mobile Radio Operation and EME Exposure

To assure optimal radio performance and that human exposure to radio frequency electromagnetic
energy is within the guidelines referenced in this document, transmit only when people inside and
outside the vehicle are at least the minimum distance away from a properly installed,
externally-mounted antenna.

iv

The table below lists the minimum distance for several different ranges of rated radio power.

Table 1 Rated Power and Distance

Rated Power of Vehicle-Installed

Mobile Two-Way Radio

7to15Watts 30.5 cm (1 Foot)
16 to 50 Watts 61 cm (2 Feet)
More than 50 Watts 91.5 cm (3 Feet)

Mobile Antenna Installation

Install the vehicle antenna external to the vehicle and in accordance with:

a. The requirements of the antenna manufacturer/supplier
b. Instructions in the radio installation manual.

Control Station Operation

When radio equipment is used to operate as a control station, it is important that the antenna be
installed outside the building and away from places where people may be in close proximity.

NOTE

Refer to Table 1 for rated power and minimum distance values for transmitting
antennas.

OPERATIONAL WARNINGS

Potentially explosive atmospheres

WARNING:Turn off your Two-Way radio when you are in any area with a potentially explosive
atmosphere, unless it is a radio type especially qualified for use in such areas. Sparks in a

!

potentially explosive atmosphere can cause an explosion or fire resulting in bodily injury or
even death.

Minimum Distance from

Transmitting Antenna

Blasting caps and areas

WARNING: To avoid possible interference with blasting operations, turn off your radio when
you are near electrical blasting caps. In a “blasting area” or in areas posted “turn off two-

!

way radio”, obey all signs and instructions.

NOTE

The areas with potentially explosive atmospheres referred to above include fuelling areas
such as: below decks on boats; fuel or chemical transfer or storage facilities; areas where
the air contains chemicals or particles, such as grain, dust or metal powders; and any other
area where you would normally be advised to turn off your vehicle engine. Areas with
potentially explosive atmospheres are often but not always posted.

Table of Contents

SAFETY INFORMATION........................................................................................iii

Chapter 1 INTRODUCTION

1.0 Scope of Manual..................................................................................................1-1

2.0 Warranty and Service Support.............................................................................1-1

2.1 Warranty Period and Return Instructions .......................................................1-1

2.2 After Warranty Period.....................................................................................1-1

2.3 European Radio Support Centre (ERSC).......................................................1-2

2.4 Piece Parts.....................................................................................................1-2

2.5 Technical Support...........................................................................................1-3

3.0 Radio Model Information......................................................................................1-4

Chapter 2 MODEL CH ART AND TEST SPECIFICATION

1.0 Model Chart (UHF 403-470 MHz)........................................................................2-1

2.0 Model Chart (VHF 136-174 MHz) ........................................................................2-2

3.0 Model Chart (Low Band 29-50 MHz) ................................................................... 2-3

2.4 Specifications ......................................................................................................2-4

v

Chapter 3 MAINTENANCE

1.0 Introduction..........................................................................................................3-1

2.0 Preventive Maintenance ......................................................................................3-1

2.1 Inspection.......................................................................................................3-1

2.2 Cleaning Procedures......................................................................................3-1

3.0 Safe Handling of CMOS and LDMOS Devices....................................................3-2

4.0 Repair Procedures and Techniques — General..................................................3-3

5.0 Disassembling and Reassembling the Radio — General....................................3-3

6.0 Radio Disassembly - Detailed.............................................................................. 3-4

6.1 Control Head Removal ...................................................................................3-4

6.2 Top Cover Removal........................................................................................3-5

6.3 Transceiver Board Removal...........................................................................3-6

6.4 Disassembly of Control Head - GM340 (without display)...............................3-7

6.5 Disassembly of Control Heads - GM360 and GM380 (with display) ..............3-8

7.0 Radio Assembly...................................................................................................3-9

7.1 Control Head - GM340 ...................................................................................3-9

7.2 Control Heads - GM360 and GM380..............................................................3-9

7.3 Radio Chassis and Transceiver Board.........................................................3-10

7.4 Control Head Fitting......................................................................................3-10

vi

8.0 Radio Exploded Mechanical Views and Parts Lists...........................................3-11

8.1 Radio Assembly - 25W Models ....................................................................3-11

8.2 Radio Assembly - 60W Models ....................................................................3-12

8.3 Control Head - GM340 .................................................................................3-13

8.4 Control Head - GM360 .................................................................................3-14

8.5 Control Head - GM380 .................................................................................3-15

9.0 Service Aids.......................................................................................................3-16

10.0 Test Equipment..................................................................................................3-17

11.0 Programming/Test Cable - RKN4083_..............................................................3-18

Chapter 4 TRANSCEIVER PERFORMANCE TESTING

1.0 General................................................................................................................4-1

2.0 Setup ...................................................................................................................4-1

3.0 RF Test Mode......................................................................................................4-2

Chapter 5 RADIO TUNING AND PROGRAMMING

1.0 Introduction..........................................................................................................5-1

2.0 CPS Programming Setup ....................................................................................5-1

3.0 Radio Tuning Setup.............................................................................................5-3

3.1 Initial Test Equipment Control Settings ..........................................................5-3

Chapter 6 POWER UP SELF-TEST

1.0 Error Codes .........................................................................................................6-1

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.

Chapter 1

INTRODUCTION

NOTE

Before operating or testing these units, please read the Safety Information Section in the
front of this manual.

2.0 Warranty and Service Support

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

2.1 Warranty Period and Return Instructions

The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or
Reseller contract. These conditions may change from time to time and the following notes are for
guidance purposes only.

In instances where the product is covered under a "return for replacement" or "return for repair"
warranty, a check of the product should be performed prior to shipping the unit back to Motorola.
This is to ensure that the product has been correctly programmed or has not been subjected to
damage outside the terms of the warranty.

Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact
Customer Resources (Please see page 2 and page 3 in this Chapter). All returns must be
accompanied by a Warranty Claim Form, available from your Customer Services representative.
Products should be shipped back in the original packaging, or correctly packaged to ensure no
damage occurs in transit.

2.2 After Warranty Period

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

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

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

1-2 INTRODUCTION

2.3 European Radio Support Centre (ERSC)

The ERSC Customer Information Desk is available through the following service numbers:
Austria: 06 60 75 41 Italy: 16 78 77 387
Belgium: 08 00 72 471 Luxemburg: 08 00 23 27
Denmark: 80 01 55 72 Netherlands: 60 22 45 13
Finland: 08 00 11 49 10 Norway: 80 01 11 15
France: 05 90 30 90 Portugal: 05 05 49 35 70
Germany: 01 30 18 75 24 Spain: 90 09 84 902
Greece: 00 80 04 91 29 020 Sweden: 02 07 94 307
UK: 0800969095 Switzerland: 1553082
Ireland: 18 00 55 50 21 Iceland: 80 08 147

Or dial Customer Care Centre:

Tel: [phone]

Please use these numbers for repair enquiries only.

2.4 Piece Parts

Some replacement parts, spare parts, and/or product information can be ordered directly. If a
complete Motorola part number is assigned to the part, it is available from Motorola Radio
Aftermarket and Accessory Division (AAD). If no part number is assigned, the part is not normally
available from Motorola. If the part number is appended with an asterisk, the part is serviceable by
Motorola Depot only. If a parts list is not included, this generally means that no user-serviceable
parts are available for that kit or assembly.

All part orders should be directed to :

Motorola GmbH
European Parts Department
65232 Taunusstein
Germany.

Warranty and Service Support 1-3

2.5 Technical Support

Motorola Product Services is available to assist the dealer/distributors in resolving any malfunctions
which may be encountered.

UK/Ireland - Richard Russell
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Central/East Europe - Siggy Punzenberger
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Northern Europe -BjornRambert
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Germany

Telephone: [phone]
Fax: [phone]
Email: [e-mail]

France - Lionel Lhermitte
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Italy - Ugo Gentile
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Africa & Middle East - Ralph Schubert
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

1-4 INTRODUCTION

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 portable radio model number and its specific characteristics.

Table 1-1 Radio Model Number (Example: MDM25KHC9AN1AE)

Typeof

Unit

MD M 25 K

Model

Series

Freq.

Band

VHF

(136-

174MHz)

M = Mobile

MD = Motorola Internal Use

UHF1

(403-

470MHz)

LB1

(29.7-

36.0MHz)

Power

Level

1-25WCGM140

R

40-60WFGM160

B

H

K

Physical

Packages

GM340
GM640

GM360
GM660

N

GM380

GM1280

Channel
Spacing

9

Program-

mable

Protocol

AA

Conventional

MDC

AN

5 Tone

CK

MPT

Feature

Level

1

GM140
GM340
GM640

5

GM160
GM360

GM660.

8

GM380

GM1280

Model

Revision

AE

Model

Package

C

LB2

(36.0-

42.0MHz)

D

LB3

(42.0-50.0

MHz)

MODEL CHART AND TEST SPECIFICATION

1.0 Model Chart (UHF 403-470 MHz)

GM Series UHF 403-470 MHz

Model Description

MDM25RHC9AN1_E GM340, 403-470 MHz, 1-25W, 6 Ch

MDM25RHF9AN5_E GM360, 403-470 MHz, 1-25W, 255 Ch

MDM25RHN9AN8_E GM380, 403-470 MHz, 1-25W, 255 Ch

Item Description

X GCN6112_ Control Head GM340

X GCN6120_ Control Head GM360

X GCN6121_ Control Head GM380

X IMUE6015_ Tanapa GM340

X IMUE6015_ Tanapa GM360

X IMUE6038_ Tanapa GM380
XXXENBN4056_ Packaging,WarisMobile
X X X GLN7324_ Low Profile Mounting Trunion
XXXHKN4137_ 12VPowerCable1-25W
X X X MDRMN4025_ Enhanced Compact Microphone
X 6864110B80 User Guide, GM340

X 6864110B81 User Guide, GM360

X 6864110B82 User Guide, GM380

Chapter 2

X = Indicates one of each is required

2-2 MODEL CHART AND TEST SPECIFICATION

2.0 Model Chart (VHF 136-174 MHz)

GM Series VHF 136-174 MHz

Model Description

MDM25KHC9AN1_E GM340, 136-174 MHz, 1-25W, 6 Ch

MDM25KHF9AN5_E GM360, 136-174 MHz, 1-25W, 255 Ch

MDM25KHN9AN8_E GM380, 136-174 MHz, 1-25W, 255 Ch

Item Description

X GCN6112_ Control Head GM340

X GCN6120_ Control Head GM360

X GCN6121_ Control Head GM380
X IMUD6013_ Tanapa GM340

X IMUD6013_ Tanapa GM360

X IMUD6024_ Tanapa GM380
XXXENBN4056_ Packaging,WarisMobile
X X X GLN7324_ Low Profile Mounting Trunion
XXXHKN4137_ 12VPowerCable1-25W
X X X MDRMN4025_ Enhanced Compact Microphone
X 6864110B80 User Guide, GM340

X 6864110B81 User Guide, GM360

X 6864110B82 User Guide, GM380

X = Indicates one of each is required

Model Chart (Low Band 29-50 MHz) 2-3

3.0 Model Chart (Low Band 29-50 MHz)

GM Series Low Band 29-50 MHz

Model Description

MDM25BKF9AN5_E GM360 LB1, 29.0-36.0 MHz, 40-60W, 255 Ch

MDM25CKF9AN5_E GM360 LB2, 36.0-42.0 MHz, 40-60W, 255 Ch

MDM25DKF9AN5_E GM360 LB3, 42.0-50.0 MHz, 40-60W, 255 Ch

Item Description

XXXGCN6120_ ControlHead,GM360
X IMUB6003_ Tanapa GM360, LB1

X IMUB6004_ Tanapa GM360, LB2

X IMUB6005_ Tanapa GM360, LB3
XXXENBN4056_ Packaging,WarisMobile
X X X HKN9402_ 12V Power Cable
XXXMDRMN4025_ EnhancedCompactMicrophone
X X X RLN4774_ 3 Point Mount
XXX6864110B81_ UserGuide,GM360

X = Indicates one of each is required

2-4 MODEL CHART AND TEST SPECIFICATION

2.4 Specifications

General

Specification VHF UHF LB1, LB2, LB3

Frequency Range: 136-174 MHz 403-470 MHz 29.7-36.0 MHz

36.0-42.0 MHz

42.0-50.0 MHz

Frequency Stability
(-30°Cto+60°C, 25°CRef.)

Channel Capacity:

Channel Spacing: 12.5/20/25 kHz
Power Output: 1-25W 1-25W 40-60W
Power Supply: 13.2Vdc (10.8 - 15.6 Vdc) negative vehicle ground

Dimensions (L X W X H)

UHF/VHF 1-25W

GM340

GM360

GM380

Low Band 40-60W

GM360

±2.5 PPM ±2 PPM ±5.0 PPM

GM340 - 6
GM360 - 255
GM380 - 255

177mm X 176mm X 56mm (add 8mm for Volume Knob)

(6.97” X 6.93” X 2.2” - add 0.3” for Volume Knob)

186mm X 179mm X 59mm (add 9mm for Volume Knob)

(7.32” X 7.05” X 2.34” - add 0.35” for Volume Knob)

188mm X 185mm X 72mm (add 7mm for Volume Knob)

(7.4” X 7.28” X 2.83” - add 0.27” for Volume Knob)

250mm X 179mm X 59mm (add 9mm for Volume Knob)

(9.8” X 7.05” X 2.34” - add 0.35” for Volume Knob)

Weight:

Low power (1-25W)
High power (40-60W)

Operating Temperature -30to60oC

Sealing Passes rain testing to IP54

Shock and Vibration Meets MIL-STD 810-C,D&E

Dust Meets MIL-STD 810-C,D&E

Humidity Meets MIL-STD 810-C,D&E

1400 g (3.15 lbs)

2064 g (4.3 lbs )

and TIA/EIA 603

and TIA/EIA 603

and TIA/EIA 603

Specifications 2-5

Transmitter

Specification VHF UHF LB1, LB2, LB3

Modulation Limiting: ±2.5 kHz @ 12.5 kHz

±4.0 kHz @ 20 kHz

±5.0 kHz @ 20/25 kHz

FM Hum and Noise: -40dB@12.5kHz

-45dB@20/25kHz

Conducted/Radiated
Emissions:

Adjacent Channel Power -60dB @12.5,

Audio Response:
( 300 to 3000Hz)

Audio Distortion:
@ 1000 Hz, 60%
Rated Maximum Deviation:

-36 dBm < 1 GHz

-30 dBm > 1 GHz

-70dB @ 20/25kHz

3% Typical

-26 dBm

+1, -3dB

Receiver

Specification VHF UHF LB1, LB2, LB3

Sensitivity (12dBSINAD):

(ETS)
Intermodulation : (ETS) >65dB;>70dBinBaseMode >65 dB
Adjacent Channel

Selectivity: (ETS)

80 dB @ 25 kHz
75 dB @ 20 kHz

65 dB @ 12.5 kHz

0.30µV(0.22µVTypical)

75 dB @ 25 kHz
70 dB @ 20 kHz

65 dB @ 12.5 kHz

80 dB @ 25 kHz
75 dB @ 20 kHz

65 dB @ 12.5 kHz

Spurious Rejection: (ETS) 80 dB @ 20/25 kHz

75 dB @ 12.5 kHz

Rated Audio: (ETS) 3W Internal (GM340/GM360)

Audio Distortion @ Rated
Audio:

Hum and Noise: -40 dB @ 12.5 kHz

Audio Response:
( 300 to 3000Hz)

Conducted Spurious
Emission per FCC Part 15:

75 dB @ 20/25 kHz

70 dB @ 12.5 kHz

13W External

3% Typical

-45 dB @ 20/25 kHz

+1, -3dB

-57 dBm <1 GHz

-47 dBm >1 GHz

80 dB @ 20/25 kHz

75 dB @ 12.5 kHz

2-6 MODEL CHART AND TEST SPECIFICATION

1.0 Introduction

This chapter provides details about the following:



Preventive maintenance (inspection and cleaning).



Safe handling of CMOS and LDMOS devices.



Disassembly and reassembly of the radio.



Repair procedures and techniques.



Installation of Option Boards.

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

Chapter 3

MAINTENANCE

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

2.2 Cleaning Procedures

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

NOTE

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

CAUTION: The effects of certain chemicals and their vapors can have harmful results on
certain plastics. Av oid using aerosol sprays, tuner cleaners, and other chemicals.

!

Cleaning External Plastic Surfaces

Apply the 0.5% detergent-water solution sparingly with a stiff, non-metallic, short-bristled brush to
work all loose dirt away from the radio. Use a soft, absorbent, lintless cloth or tissue to remove the
solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks,
or crevices.

Internal surfaces should be cleaned only when the radio is disassembled for service or
repair.

3-2 MAINTENANCE

Cleaning Internal Circuit Boards and Components

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

NOTE

Always use a fresh supply of alcohol and a clean container to prevent contamination by
dissolved material (from previous usage).

3.0 Safe Handling of CMOS and LDMOS Devices

Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios, and
are susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting
in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent
device damage during disassembly, troubleshooting, and repair.

Handling precautions are mandatory for CMOS circuits and are especially important in low humidity
conditions. DO NOT attempt to disassemble the radio without first referring to the following
CAUTION statement.

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

!



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



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



Wear a conductive wrist strap in series with a 100k resistor to ground.
(Replacement wrist straps that connect to the bench top covering are Motorola part
number RSX4015_.)



Do not wear nylon clothing while handling CMOS devices.



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



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



When soldering, use a grounded soldering iron.



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

Repair Procedures and Techniques — General 3-3

4.0 Repair Procedures and Techniques — General

Parts Replacement and Substitution

When damaged parts are replaced, identical parts should be used. If the identical replacement part
is not locally available, check the parts list for the proper Motorola part number and order the part
from the nearest Motorola Communications parts center listed in the “Piece Parts” section of this
manual.

Rigid Circuit Boards

This family of radios uses bonded, multi-layer, printed circuit boards. Since the inner layers are not
accessible, some special considerations are required when soldering and unsoldering components.
The printed-through holes may interconnect multiple layers of the printed circuit. Therefore, exercise
care to avoid pulling the plated circuit out of the hole.

When soldering near the 20-pin and 40-pin connectors:



Avoid accidentally getting solder in the connector.



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



Examine your work closely for shorts due to solder bridges.

5.0 Disassembling and Reassembling the Radio — General

Since these radios may be disassembled and reassembled with the use of only four (board to
casting) screws, it is important to pay particular attention to the snaps and tabs, and how parts align
with each other.

The following tools are required for disassembling the radio:



Small flat blade screwdriver



Dismantling Tool (Motorola Part No. 6686119B01)



TORX™ T20 screwdriver

If a unit requires more complete testing or service than is customarilyperformed at the basic level,
send this unit to a Motorola Authorized Service Center. (See Chapter 1 for a list of authorized
service centers.)

The following disassembly procedures should be performed only if necessary:

3-4 MAINTENANCE

6.0 Radio Disassembly - Detailed

The procedure to remove and replace a Control Head, Top Cover or Transceiver Board is similar for
all models of radio. A typical procedure is therefore shown followed by specific disassembly
procedures for Control Heads on radio models without a display and radio models fitted with a
display.

6.1 Control Head Removal

1. Insert the dismantling tool in the groove between the control head and the radio assembly as
showninFigure3-1.

2. Press on the dismantling tool until the snap connectors on the side of the control head
release from the radio assembly.

Dismantling
Tool

Figure 3-1 Typical Control Head Removal.

3. Pull the control head away from the radio assembly as shown in Figure 3-2.

ZWG0130209-O

Radio Disassembly- Detailed 3-5

Flexible
Connection

ZWG0130210-O

Figure 3-2 Flexible Connection Removal

4. Remove the flexible connection from the socket on the control head board.

6.2 Top Cover Removal

1. Insert the dismantling tool in the middle of the radio assembly side groove as shown in
Figure 3-3.

2. Press on the dismantling tool until the snap connectors on the side of the cover release from
the radio chassis.

3. Lift the top cover from the chassis.

Dismantling
Tool

ZWG0130211-O

Figure 3-3 Top Cover Removal.

3-6 MAINTENANCE

6.3 Transceiver Board Removal

1. Remove the screws securing the diecast cover to the chassis, using the T20 TORX™ driver
asshowninFigure3-4.

2. Lift the cover from the chassis.

Screws (6 on 25W models)

Diecast
Cover

Radio
Chassis

(9 on 60W models)

ZWG0130212-O

Figure 3-4 Diecast Cover Removal.

3. Slowly lift the transceiver board on the edge at the front of the radio (the edge that mates with
the control head) and pull gently toward the front of the radio as shown in Figure 3-5. Take
care to slide the antenna connector and power connector out of the chassis towards the front.

CAUTION: The thermal grease or pads can act as an adhesive and cause the leads of the heat dis­sipating devices to be over stressed if the board is lifted too quickly.

Lift

Antenna
Connector

Figure 3-5 Transceiver Board Removal

ZWG0130213-O

Radio Disassembly- Detailed 3-7

6.4 Disassembly of Control Head - GM340 (without display)

1. To dismount the control head housing from the back housing, insert the dismantling tool in the
groove between the two housings as shown in Figure 3-6.

ZWG0130214-O

Figure 3-6 Control Head Back Housing Removal

2. Press the dismantling tool until the snap connectors on the side of the back housing release
from the control head.

3. Disconnect the speaker socket.

ZWG0130215-O

Figure 3-7 Control Head Board Removal

4. Remove the board from the control head housing by stretching the control head housing and
pulling up on the board as shown in Figure 3-7 and 3-8.

5. Remove the keypad from the control head housing by lifting up the rubber keypad.

NOTE

Care should be taken not to touch or contaminate the conductive pads on the under side of
the keypad or the conductive contacts on the printed circuit board.

3-8 MAINTENANCE

ZWG0130216-O

Figure 3-8 Board, Keypad and Speaker Removal

6. Remove the speaker from the control head housing.

6.5 Disassembly of Control Heads - GM360 and GM380 (with display)

1. Dismount the control head housing from the back housing as described for control heads
without displays, Figure 3-6 and 3-7.

2. On the GM360, disconnect the speaker socket and pull out the speaker (with speaker tube)
by stretching the control head housing, Figure 3-9.

NOTE

The speaker and speaker tube are glued together to form one unit. (GM360 only)

ZWG0130218-O

Figure 3-9 Speaker and Speaker Tube Removal

3. Remove the board from the control head housing by stretching the control head housing and
pulling up on the board.

4. Remove the keypad from the control head housing by lifting up the rubber keypad.

Radio Assembly 3-9

5. Remove the display and the top and bottom elastomeric connectors from the control head
housing (GM360 only).

NOTE

Care should be taken not to touch or contaminate the conductive pads on the under side of
the keypad, the elastomeric connectors or the conductive contacts on the printed circuit
board .

7.0 Radio Assembly

7.1 Control Head - GM340

1. Locate the speaker in the control head and press it into place as shown in Figure 3-8.

2. Insert the keypad intothe controlhead ensuringthat the keypad keys and connector cut-out fit
correctly.

NOTE

Care should be taken not to touch or contaminate the conductive pads on the underside of
the keypad.

3. On the board, rotate the on/off control spindle fully counter-clockwise.

4. Also, rotate the volume knob on the housing fully counter-clockwise

5. Align the board with the control head and insert the on/off control spindle through the hole in
the keypad.

6. Locate the two snap tags on the board in the grooves in the control head and press the board
into place until all of the tags snap into place.

7. Connect the speaker connector to the connector on the board.

7.2 Control Heads - GM360 and GM380

1. On the GM360 only,locate the display in the control head ensuring that the two cut-outs in the
display are aligned with their corresponding indentations, then press the display into place.
Insert the top and bottom elastomeric connector strips into the spaces above and below the
display respectively.

NOTE

Care should be taken not to touch or contaminate the conductive pads on the underside of
the display and the elastomeric connectors (GM360 only).

2. Fit the rubber keypad onto the board ensuring that the on/off control and microphone
connector on the board locate correctly with the cut-outs in the keypad.

3. On the board, rotate the on/off control spindle fully counter-clockwise.

4. Also, rotate the volume knob on the front housing fully counter-clockwise.

5. Align the board with the control head, inserting the on/off control spindle and microphone
connector through the holes in the control head.

6. Ensure that the keypad, on/off control spindle and microphone connector are aligned with the
control head then press the board into place until it clicks.

7. On the GM360, insert the speaker tube and speaker into the control head and press it in until
it clicks.Connect the speaker connector to the board.

3-10 MAINTENANCE

7.3 Radio Chassis and Transceiver Board

1. Inspect the transceiver board chassis and if required reapply thermal grease to the heatsink
area on the chassis and heat dissipating devices. You may have to remove damaged thermal
pads from the chassis and devices prior to applying the grease.

2. Insert the transceiver board at an angle (approximately 30°) into the chassis taking care to
slide the antenna connector and accessory connector into their cut-outs in the chassis.

3. Lower the transceiver board onto the chassis and align the two locating holes in the board
with the locating pins in the chassis.

4. Secure the cover to the chassis with the six screws previously removed.

5. Torque the six screws to 1.9 NM (17 in lbs) using the T20 TORX™ driver. Begin with the two
screws located in the middle of the chassis followed by the four outer screws. Since the
screws usually take a set, torque the screws a second time (1.9 NM) in the same order.

6. Refit the top cover over the assembled radio chassis. Press the cover down until it snaps into
place.

7.4 Control Head Fitting

1. Align the “0” mark on the flex with the “0” mark on the chassis to the socket on the radio
assemblyasshowninFigure3-2.

2. Check that the back housing o-ring seal is undamaged and fitted in the groove. Replace the
seal if it is damaged (refer to the exploded view diagrams and parts list).

3. Fit the back housing to the control head. Ensure that the tags on the back housing align with
the snap catch grooves on the control head. Press the back housing into place until it snaps
into place.

4. Check that the radio chassis o-ring seal is undamaged and fitted in the groove on the chassis
assembly. Replace the seal if it is damaged.

Radio Exploded Mechanical Views and Parts Lists 3-11

8.0 Radio Exploded Mechanical Views and Parts Lists

8.1 Radio Assembly - 25W Models

10

9

7

56

13

14

12

11

16

Figure 3-10 Radio Assembly - 25W Models

Table 3-1 Radio Assembly Parts List - 25W Models

Item No. Description Part Number

8

4

15

3

1

2

ZWG0130202-A

1 Chassis 25W 2786082B02
2 Gasket, Controlhead 3202620Y01
3 Main PCB (items 4 to 10 included)
4 Antenna Connector with Gasket, BNC 0986166B01
5 Power Connector 0986165B01
6 Connector 20 PIN 0986105B01
7 Connector Assembly 2886122B02
8 Gasket Cover 3202607Y01

9 Connector 1580922V01
10 Gasket Accessory Connector 3202606Y01
11 Gasket Cover 25W 3286086B01
12 Cover 25W 1586084B01
13 Cover, Plastic 25W 1586083B01

14 Screw T20, 6x (M4) 0310911A30

15 Screw T8 Power Device Fastner

0310911A12

(some models only)

16 Silicon Pressurepad, Powerdevices

7586187B01

(25W coveronly)

3-12 MAINTENANCE

8.2 Radio Assembly - 60W Models

10

9

7

6

13

12

11

8

5

4

3

1

2

ZWG0130203-A

Figure 3-11 Radio Assembly 60W Models

Table 3-2 Radio Assembly Parts List - 60W Models

Item No. Description Part Number

1 Chassis 60W 2786149B01

2 Gasket, Controlhead 3202620Y01

3 Main PCB (items 4, 5 and 8 included)

4 Antenna Connector, Mini UHF 0986166B02

5 Power Connector 0986165B01

6 Connector 20 PIN 0986105B01

7 Connector Assembly 2886122B01

8 Gasket Cover,Connector 3202607Y01

9 Connector 1580922V01
10 Gasket Accessory Connector 3202606Y01
11 Gasket Cover 60W 3286152B01
12 Cover 60W 1586150B01
13 Cover, Plastic 60W 1586151B01

Screw T20, 9x (not shown) 0310911A30

Radio Exploded Mechanical Views and Parts Lists 3-13

8.3 Control Head - GM340

10

7

8

5

1

2

3

6

4

Figure 3-12 Control Head GM340

Table 3-3 Control Head GM340 Parts List

Item no Description Part No

1 Housing Front, including:

Gasket, Lens, Lightguide
2 Knob, Volume 3686098B02
3 Label 1364279B13
4 Speaker 5086126B01
5 Keypad, including

Keypad Button
6 PCB Kit GLN7350_
7 Potentiometer 1805911V02
8 10 PIN Microphone Jack 2864287B01
9 Flex 12 Position Connector

(Controlhead to Radio)

10 Backhousing,including:

Back Housing O-ring

Back Housing ,Grounding Clip

1586086B01

7586089B01
3886133B--

8486127B01

1586092B02
3286094B01
3286217B01

9

ZWG0130198-A

3-14 MAINTENANCE

8.4 Control Head - GM360

10

11

12

2

13

7

6

1

3

8

9

Figure 3-13 Controlhead - GM360

Table 3-4 Control Head GM360 Parts List

Item no Description Part No.

1 Housing Front

Gasket, Lens, Lightguide

2 Knob, Volume 3686098B02
3 Label 1364279B14
4 Speaker 5086126B01
5 Tube, Speaker with Gasket 3786107B01
6 Keypad, including:

Keypad Button

7 LCD Glass 7286104B01
8 Frame LCD 0786099B01
9 Conn. Elastomeric (Top and Bottom) 2886130B01

10 Back Housing, including: 1586093B02

Back Housing, O-ring 3286094B01

Back Housing, Grounding Clip 3986218B01

11 PCB Kit GLN7353_
12 Potentiometer 1805911V02
13 10 PIN Micphone Jack 2864287B01

(not shown) Flex, 12 Position Connector

(Controlhead to Radio)

1586088B01

7586091B02
3886134B--

2886130B02

8486127B01

4

5

ZWG0130200-A

Radio Exploded Mechanical Views and Parts Lists 3-15

8.5 Control Head - GM380

10

9

4
7

6

2

8

5

1

3

Figure 3-14 Control Head - GM380

Table 3-5 Control Head GM380 Parts List

Item No Description Part No

1 Housing Front, including:

Gasket, Lens, Lightguide
2 Knob, Volume 3686098B02
3 Label 1364279B15
4 LCD Module 5164313B01
5 Keypad, including:

Keypad Button
6 PCB Kit GLN7361_
7 Potentiometer 1805911V02
8 10 PIN Microphone Jack 2864287B01
9 Flex, 24 Position connector 8464346B02

10 Backhousing,including: 1564305B01

Back housing O-ring

Grounding Clip, left

Grounding Clip, right

(not shown) Flex, 12 Position Connector

(Controlhead to Radio)

1564304B01

7564314B01
3886134B--

3286094B01
3908450X02
3908451X02

8486127B01

ZWG0130201-A

3-16 MAINTENANCE

9.0 Service Aids

Table 3-6 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 3-6 Service Aids

MotorolaPart

No.

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

RKN4081_ Programming Cable with

Internal RIB

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

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

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

GPN6133_ Power Supply Provides the radio with power when bench

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)

Description Application

Allows switching for radio testing.
Includes radio interface box (RIB) capability.

connector.

computer’s serial communications adapter.

test equipment.

testing.

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

Test Equipment 3-17

10.0 Test Equipment

Table 3-7 lists test equipment required to service the radio and other two-way radios.

Table 3-7 Recommended Test Equipment

Motorola Part

No.

R2600_NT Comms System

R2680_NT Comms System

*R1072_ Digital Multimeter AC/DC voltage and current

*R1377_ AC Voltmeter 100

WADN4133 Delay

Description Characteristics Application

Analyzer(non MPT)

Analyzer
(MPT1327) to be
ordered with
RLN1022_ (H/W)
RLN1023_ (S/W)

Oscilloscope

This monitor will
substitute for items with
an asterisk *

This monitor will
substitute for items with
an asterisk *

µVto300V,

5Hz-1MHz,
10 Megohm input
impedance

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

Frequency/deviation meter
and signal generator for wide­range troubleshooting and
alignment

Frequency/deviation meter
and signal generator for wide­range troubleshooting and
alignment

measurements
Audiovoltage

measurements

Waveform measurements

R1440_
0180305F17

0180305F31
0180305F40
RLN4610_

T1013_
S1339_ RF Millivolt Meter 100mV to 3 VRF,

R1011_/220V 220V Power

Wattmeter,
Plug-in Elements

Plug-in Elements
Plug-in Elements
Carry case

RF Dummy Load

Supply

Thruline 50-Ohm,

±5% accuracy

10W, 25 - 60 MHz
10W, 100 - 250 MHz
10W, 200 - 500 MHz
Wattmeter and
6elements

10 kHz to 1.2 GHz
0-40V, 0-40A Programmable

Transmitter power output
measurements

RF level measurements

3-18 MAINTENANCE

11.0 Programming/Test Cable - RKN4083_

1

14

+

_

1000 50mm

Cable

1

19
20

2

P1 (Male)
To Radio

Test Set

13

25

1000 50mm

To Mobile Radio

17
18

Cable

J2 (Female)

Accessory
Connector

Viewed from

Front (pin end)

of Connector

J1 (Female)

To RIB

RLN4008

13

25

+

_

1

14

FL0830308O

Figure 3-15 Programming/Test Cable

FLO830308-0

SPEAKER -

EXTERNAL MIC

DIGITAL IN 1 (EXT. PTT)

DIGITAL OUT 2 (EXT. ALARM)

FLAT TX AUDIO SENSITIVITY

DIGITAL IN 3/MPT MAP 27 RX

DIGITAL IN/OUT 4/MPT MAP 27 TX

DIGITAL IN 5 w WAKEUP (EMG)

FLAT/FILTERED RX AUDIO

SWITCHED BATTERY VOLTAGE

BUS + (FOR CPS AND FLASHING)

FL0830307O

IGNITION

DIGITAL IN/OUT 7

DIGITAL IN/OUT 8

SPEAKER +

BOOT CONTROL

GND

RSSI

N/C

N/C

J2 Mobile

Radio

Accessory

Connector

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

P1

To Radio

Test Set

RLN4460

J1

To RIB

RLN4008

1

2

5

7

10

15

16

18

19

20

25

1

4

11

12

15

25

AUDIO +

AUDIO -

AUDIO +

AUDIO -

MIC AUDIO

MIC AUDIO

GND

VOL CTRL

DISC

PTT

BOOT CTRL

GND

BIAS

BUS -

SW B +

BUS +

BOOT CTRL

Figure 3-16 Pin Configuration of the Side Connector

FLO830307-0

1.0 General

These radios meet published specifications through their manufacturing process by utilizing high­accuracy laboratory-quality test equipment. The recommended field service equipment approaches
the accuracy of the manufacturing equipment with few exceptions. This accuracy must be
maintained in compliance with the manufacturer’s recommended calibration schedule.

2.0 Setup

Supply voltage is provided using a 13.2Vdc power supply. The equipment required for alignment
procedures is connected as shown in the Radio Tuning Test Setup Diagram, Chapter 5, Figure 5-4.

Initial equipment control settings should be as indicated in Table 4-1. The remaining tables in this
chapter contain the following related technical data:

Chapter 4

TRANSCEIVER PERFORMANCE TESTING

Table Number Title

4-2 Test Environments
4-3 Test Channel Spacing
4-4 Test Frequencies
4-5 Transmitter Performance Checks
4-6 Receiver Performance Checks

Table 4-1 InitialEquipment Control Settings

Service Monitor Test Set Power Supply

Monitor Mode: Power Monitor Spkr set: A Voltage: 13.2Vdc
RF Attn: -70 Spkr/load:

Speaker
AM,CW,FM:FM PTT: OFF Volt Range: 20V
Oscilloscope Source: Mod

Oscilloscope Horiz: 10mSec/Div
Oscilloscope Vert: 2.5kHz/Div
Oscilloscope Tr ig: Auto
Monitor Image: Hi
Monitor BW: Nar
Monitor Squelch: mid CW
Monitor Vol: 1/4 CW

DC On/Standby:
Standby

Current: 20A

4-2 TRANSCEIVER PERFORMANCE TESTING

3.0 RF Test Mode

When the radio is operating in its normal environment, the radio’s microcontroller controls the RF
channel selection, transmitter key-up, and receiver muting. However, when the unit is on the bench
for testing, alignment, or repair, it is removed from its normal environment and cannot receive
commands from its system. Therefore, the internal microcontroller does not key the transmitter or
unmute the receiver. This prevents the use of a normal tuning procedure. To solve this problem, a
special “test mode” is incorporated into the radio.

To enter test mode (display radios):

1. Turn the radio on.

2. Within ten seconds after the self test is complete, press button P2, five times in succession.

3. After “CSQ CHXX SP25” appears in the display, the radio is on channel XX, carrier squelch

mode, 25 kHz channel spacing.

4. Each additional press of P2 scrolls through to the next channel spacing and a corresponding
set of tones are sounded.

5. Pressing P1 scrolls through and accesses test environments as shown in Table 4-2.

6. Pressing P2 for three seconds switches the radio to the control head test mode. ‘LCD Test’

appears on the display.

7. Pressing P1 causes the radio to turn on all the dots of the first character. Another P1 press
turns on all the dots of the next character and so on until the last character.

8. Pressing P1 at the end of the LCD test activates the ‘Icon Test’. The next P1 press turns on
the first icon.

9. Pressing P1 at the end of the Icon test activates the button test. Pressing any button (except
P1) or any keypad button during the LCD test or Icon test immediately activates this test.

10. Pressing P2 for 3 seconds in the control head test mode causes the radio to return to the RF
test mode.

To enter test mode (non display radios):

1. Turn the radio on.

2. Within ten seconds after the self test is complete, press button P2, five times in succession.

3. All LEDs turn on for a short period to indicate the entry of the test mode.

4. Each additional press of P2 scrolls through to the next channel spacing and a corresponding

set of tones are sounded.

5. Pressing P1 scrolls through and accesses test environments as shown in Table 4-2.

6. Pressing button 1 (up) or button 2 (down) scrolls through and accesses test channels as

shown in Table 4-4. The LEDs above the buttons 1 to 4 indicate the channel number in binary
form.

7. Pressing P2 for three seconds activates the button test.

8. Pressing P2 again for three seconds causes the radio to return to the RF test mode.

XX = channel number (01 - 14)

RF Test Mode 4-3

Table 4-2 Test Environments

No. of

Beeps

1

(high pitch)

Description Function

Carrier Squelch
(CSQ)

RX: unsquelch if carrier detected
TX: mic audio

11 CMP RX: constant unsquelch

TX: mic audio

12 LLE RX: constant unsquelch

TX: mic audio

5 Unsquelch

(UNSQ)

2 Digital

Private-Line (DPL)

1 Tone

Private-Line (TPL)

3 Dual-Tone multiple

frequency (DTMF)

RX: constant unsquelch
TX: mic audio

RX: unsquelch if carrier and digital code (131) detected
TX: mic audio + digital code (131)

RX: unsquelch if carrier and tone (192.8Hz) detected
TX: mic audio + tone (192.8Hz)

RX: unsquelch if carrier detected
TX: selected DTMF tone pair

9 MPT 0 RX: unsquelch if carrier detected

TX: 1200 baud with data “0”

10 MPT 1 RX: unsquelch if carrier detected

TX: 1200 baud with data “1”

4 MPT 3 RX: speaker muted, high tone sounds when below sequence

detected
TX: 1200 baud with bit pattern
“aa aa c4 d7 d2 90 49 f1 f1 bb f5 c7”

6 Select 5 CCIR

(SV-C)

RX: speaker muted, high tone sounds when below sequence
detected
TX: CCIR sequence 1124, 1275, 1446, 1640, 1860 Hz

7Select5ZVEI

(SV-Z)

RX: speaker muted, high tone sounds when below sequence
detected
TX: CCIR sequence 1060, 1270, 1530, 1830, 2200 Hz

8 Data Mode

(EXT)

13 Base Station Mode

(B-ST)

RX: unsquelch if carrier detected
TX: flat TX audio

RX: constant unsquelch
TX: mic audio

Table 4-3 Test Channel Spacing

Number of Beeps Channel Spacing

1 25 kHz

212.5kHz
3 20 kHz

4-4 TRANSCEIVER PERFORMANCE TESTING

Table 4-4 Test Frequencies

Test

Mode

Test

Channel

Low Power

Test

Channel

High Power

VHF UHF LB1 LB2 LB3

TX 1 8 136.025 403.025 29.725 36.025 42.025
RX 1 8 136.050 403.050 29.750 36.050 42.050
TX 2 9 142.325 414.150 30.225 37.125 43.225
RX 2 9 142.350 414.175 30.325 37.225 43.125
TX 3 10 148.625 425.325 31.025 38.225 44.525
RX 3 10 148.650 425.350 31.125 38.325 44.425
TX 4 11 154.975 436.475 32.125 39.125 46.125
RX 4 11 155.025 436.525 32.225 39.225 46.025
TX 5 12 161.225 447.650 33.025 40.225 47.525
RX 5 12 161.250 447.675 33.125 40.325 47.425
TX 6 13 167.525 458.825 34.225 41.025 48.125
RX 6 13 167.550 458.850 34.325 41.125 48.025
TX 7 14 173.950 469.950 35.950 41.950 49.950
RX 7 14 173.975 469.975 35.975 41.975 49.975

Table 4-5 Transmitter Performance Checks

Test Name

Reference
Frequency

Communications

Analyzer

Mode: PWR MON
4th channel test
frequency*
Monitor: Frequency
error

Radio Test Set Comment

TEST MODE,
Test Channel 4
carrier squelch

PTT to
continuous
(during the
performance

Frequency error:
±150 Hz VHF,
±150 Hz UHF
±150 Hz LB

check)

Input at RF In/Out

Power RF As above As above As above Low Power:

0.8-1.4W
High Power:
25-30W
(VHF 403-470MHz).
Low Power:
40-47W
High Power:
60-70W
(LB)

RF Test Mode 4-5

Table 4-5 Transmitter Performance Checks (Continued)

Test Name

Voice
Modulation

Voice
Modulation
(internal)

DTMF
Modulation

Communications

Analyzer

Mode: PWR MON
4th channel test
frequency*
atten to -70, input to RF
In/ Out
Monitor: DVM, AC Volts
Set 1kHz Mod Outlevel
for 800mVrms at test
set, 800mVrms at AC/
DC test set jack

Mode: PWR MON
4th channel test
frequency*
atten to -70, input to RF
In/ Out

As above,
4th channel test
frequency*

Radio Test Set Comment

As above As above,

meter selector
to mic

Deviation:

2.5 kHz Max.
(12.5 kHz Ch. Sp).
4kHzMax.
(20 kHz Ch. Sp).
5kHzMax.
(25 kHz Ch. Sp).

TEST MODE,
Test Channel 4
carrier squelch
output at
antenna

Remove
modulation
input

Deviation:

2.5 kHz Max.
(12.5 kHz Ch. Sp.).
4kHzMax.
(20 kHz Ch. Sp.).
5kHzMax.
(25 kHz Ch. Sp.).

TEST MODE,
Test Channel 4
DTMF output at
antenna

As above Deviation:

1.4-1.9 kHz
(12.5 kHz Ch. Sp.).

2.3-3.0 kHz
(20 kHz Ch. Sp.).

2.9-3.8 kHz
(25 kHz Ch. Sp.).

PL/DPL
Modulation

*SeeTable4-4

As above
4th channel test
frequency*
BW to narrow

TEST MODE,
Test Channel 4
TPL
DPL

As above Deviation:

0.25-0.5 kHz
(12.5 kHz Ch. Sp.).

0.4-0.8 kHz
(20 kHz Ch. Sp.)

0.5-1.0 kHz
(25 kHz Ch. Sp.).

4-6 TRANSCEIVER PERFORMANCE TESTING

Table 4-6 Receiver Performance Checks

Test Name

Reference
Frequency

Rated Audio Mode: GEN

Distortion As above, except to

Sensitivity
(SINAD)

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

Communications

Analyzer

Mode: PWR MON
4th channel test frequency*
Monitor: Frequencyerror
Input at RF In/Out

Output level: 1.0mV RF
4th channel test frequency*
Mod: 1kHz tone at
3kHz deviation
Monitor: DVM: AC Volts

distortion
As above,except SINAD,

lower the RF level for 12dB
SINAD.

RF levelset to 1mV RF As above PTT to OFF

Radio Test Set Comment

TEST MODE,
Test Channel4
carriersquelch
output at
antenna

TEST MODE
Test Channel4
carrier squelch

As above As above Distortion

As above PTT to OFF

PTT to
continuous
(during the
performance
check)

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

(center)

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

Frequency
error to be
±150 Hz VHF
±150 Hz UHF
±150 Hz LB

Set volume
control to

8.12Vrms

<5.0%
RF input to be

<0.3µV

Set volume
control to

3.16Vrms

*SeeTable4-4

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

out of TEST
MODE; select
a conventional
system

As above Unsquelch to

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

1.0 Introduction

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

Chapter 5

RADIO TUNING AND PROGRAMMING

NOTE

Refer to the appropriate program on-line help files for the programming procedures.

Table 5-1 Software Installation Kits Radio Tuning Setup

Description Kit Number

EMEA CD ENLN4115_
Software Installation Manual 68P64113B14_

2.0 CPS Programming Setup

The CPS programming setups, shown in Figures 5-1 through 5-3, are used to program the radio.

NOTE

Refer to appropriate program on-line help files for the programming procedures.

ACC

DC

Radio

RF

+13,2VDC

Power

Supply

Programming
Cable
RKN4081

DB25

RIB

RLN-4008

DB15

Cable 3080369B72 (9 PIN)
Cable 3080369B71 (25 PIN)

Tx Data
Rx

Data

Gnd

Figure 5-1 CPS Programming Setup with RIB

ZWG0130338-0

5-2 RADIO TUNING AND PROGRAMMING

ACC

DC

Radio

RF

Programming Cable RKN4081

+13,2VDC

Power

Supply

DB25

Tx Data
Rx Data

Gnd

ZWG0130339-0

Figure 5-2 CPS Programming Setup Cable with Internal RIB

Adapter

Cable

RLN4853

ACC

DC

Radio

RF

Programming

+13,2VDC

Power

Supply

Cable

RKN4081

DB25

Tx Data
Rx Data

Gnd

ZWG0130340-0

Figure 5-3 CPS Programming Setup Cable with Internal RIB and Rear Adapter Cable

Radio Tuning Setup 5-3

3.0 Radio Tuning Setup

A personal computer (PC), Windows 95/98 and a tuner program are required to tune the radio. To
perform the tuning procedures, the radio must be connected to the PC, radio interface box (RIB),
and test equipment setup as shown in Figure 5-4.

Test Box

RLN4460

ACC

DC

Radio

RF

Mini UHF

to BNC

HLN8027

Program/
RKN4083

+13,2VDC

Power

Supply

30 dB Pad

Test Cable

RLN-4008

RIB

Cable 3080369B72 (9 PIN)
Cable 3080369B71 (25 PIN)

Figure 5-4 Radio Tuning Test Equipment Setup with External RIB

3.1 Initial Test Equipment Control Settings

DB15

Audio In

Transmit

Receive

Tx

Audio Generator

Rx

Sinad M eter

AC Voltmeter

Tx Data
Rx Data

Gnd

RF Generator

Service Monitor
or Counter

Wattmeter

ZWG0130336-0

The initial test equipment control settings are listed in Table 5-2.

Table 5-2 InitialEquipment Control Settings

Service Monitor Test Set Power Supply

Monitor Mode: Power Monitor Speaker set: A Voltage: 13.2Vdc
RF Attenuation: -70 Speaker/load:

Speaker
AM,CW,FM:FM PTT: OFF Volt Range: 20V
Oscilloscope Source: Mod

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

DC on/standby:
Standby

Current: 20A

5-4 RADIO TUNING AND PROGRAMMING

1.0 Error Codes

Turning on the radio starts a self-test routine that checks the radio functionality. If the checks are
successful, the radio generates a high-pitched self-test pass tone. If the self-test is not successful,
one low-pitched (300Hz) error tone is heard and the RED LED flashes several times to indicate the
reason for the failure (see Table 6-1 below). After flashing the error code, the LED remains off for 5
seconds and then repeats the error code. The LED sequence and the error tone continue until the
radio is switched off. Radios with displays are also able to display error codes. The meaning of the
LED indication, the displayed error codes and the related corrections are listed in Table 6-1.

Chapter 6

POWER UP SELF-TEST

Table 6-1 Power-up Error Codes

If the error code

displayed is…

“Test 1 Failed” Once Hardware codeplug error,

“Test 2 Failed” Twice Select 5 Application Vector

“Test 3 Failed” Three times Codeplug Checksum error. Reprogram codeplug and retest the

“Test 4 Failed” Four times Codeplug Version Error. Reprogram codeplug using the

“Test 5 Failed” Five times ROM Checksum test failure. Turn radio off then on again. If the

“Test 6 Failed” Six times RAM Checksum test failure. Turn the radio off then on again. If the

The LED

flashes...

then, there is a... T o correct the problem...

Reprogram codeplug. If message
possibly codeplug structure
mismatch or non-existant
codeplug.

corrupted.

re-occurs, replace main board o r

return it to the nearest Motorola

depot.

Reprogram codeplug and retest the

radio.

radio.

correct version and retest the radio.

message re-occurs replace the main

board or return it to the nearest

Motorola depot.

message re-occurs replace the main

board or return it to the nearest

Motorola depot.

“Test 7 Failed” --- --- Reserved
“Test 8 Failed” Eight times Radio Model Number failure. Reprogram codeplug for correct

model.

No Display. Display module is not

connected.
Display module faulty.

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

Radio failure or invalid
codeplug as described
above.

Check connection between main

board and the display module

Replace display module.

Turn the radio off then on again.

Confirm that there is a 300Hz fail

tone and count the number of flashes

made by the LED. Make the relevant

correction as described above

6-2 POWER UP SELF-TEST