Motorola Gm1200e 68p64115b12 Manual

 
Introduction
General1-1
 
1.0Introduction  
This chapter outlines the scope and use of the basic service manual and provides an overview of 
the warranty and service support. 
2.0Scope of Manual 
This manual is intended for use by technicians familiar with similar types of equipment. It contains 
levels 1 and 2 service information required for the equipment described and is current as of the 
printing date. Changes which occur after the printing date maybe incorporated by a complete Basic 
Service...

 
Warranty and Service Support
1-2General
 
4.2After Warranty Period 
After Warranty period, Motorola continues to support products in two ways. 
Firstly, Motorolas Radio Parts and Service Group (RPSG) offer a repair service to both end users 
and dealers at competitive prices. 
Secondly, RPSG supplies individual parts and modules that can be purchased by dealers who are 
technically capable of performing fault analysis and repair. To assist in this level of service, a 
Detailed Service Manual containing...

 
Model Chart
General1-3
 
5.0 
Model Chart 
Description
 
GM1200E 403-470MHz 12.5kHz 25W DB
GM1200E 403-470MHz 25kHz 25W DB
GM1200E 403-470MHz 12.5kHz 25W KD
GM1200E 403-470MHz 25kHz 25W KD
GM1200E 136-174MHz 12.5kHz 25W DB 
GM1200E 136-174MHz 25kHz 25W DB 
GM1200E 136-174MHz 12.5kHz 25W KD 
GM1200E 136-174MHz 25kHz 25W KD 
 
GM1200E 
403-470 MHz UHF
136-174 MHz VHF 
X = Indicates one of each required 
Model
 
M08RHA4CK5_N
M08RHA6CK5_N
M08RHH4CK6_N
M08RHH6CK6_N
M08KHA4CK5_N
M08KHA6CK5_N
M08KHH4CK6_N...

 
Model Chart
1-4General
 
5.1Service Options
Description
 
GM1200E 403-470MHz 12.5kHz 25W DB
GM1200E 403-470MHz 25kHz 25W DB
GM1200E 403-470MHz 12.5kHz 25W KD
GM1200E 403-470MHz 25kHz 25W KD
GM1200E 136-174MHz 12.5kHz 25W DB 
GM1200E 136-174MHz 25kHz 25W DB 
GM1200E 136-174MHz 12.5kHz 25W KD 
GM1200E 136-174MHz 25kHz 25W KD 
 
GM1200E 
403-470 MHz UHF
136-174 MHz VHF 
X = Indicates one of each required 
Model
 
M08RHA4CK5_N
M08RHA6CK5_N
M08RHH4CK6_N
M08RHH6CK6_N
M08KHA4CK5_N
M08KHA6CK5_N
M08KHH4CK6_N...

 
Technical Specifications
General1-5
 
6.0Technical Specifications 
6.1General
6.2Transmitter 
SPECIFICATION ITEMTYPICAL VALUE 
Frequency RangeUHF:  403-470 MHz
VHF:  136-174 MHz
Channel Spacing12.5 kHz or 20/25kHz
Frequency Stability 
± 
2ppm (UHF) /  
±  
5ppm (VHF)
Power Supply10.8 to 15.6V dc, negative earth
DimensionsK5 Model - 44x168x160 mm  (HxWxD)
K6 Model - 55x185x167 mm  (HxWxD)
Weight1030g
Operational Temperature- 25 
° 
C to + 55 
°  
C
Storage Temperature- 40 
° 
C to + 85 
°  
C
Antenna...

 
Technical Specifications
1-6General
 
6.3Receiver
6.4Self-Quieting Frequencies 
Self-quieting frequencies are frequencies that are also generated by the radio and cause internal 
interference. On these frequencies the interference caused by the self-quieter spur is great enough 
that a radio will not meet its receiver sensitivity specification. 
The frequencies are: UHF 403.2, 420, 436.8 and 453.6MHz. 
VHF 151.2 and 168MHz. 
SPECIFICATION ITEMTYPICAL VALUE 
Channel Spacing12.5kHz or 20/25kHz
Sensitivity...

 
Maintenance2-i 
Chapter 2 
Maintenance 
Table of Contents 
Table of Contents 
ParagraphPage 
1.0Overview 
..................................................................................................... 1  
2.0Disassemble the Radio 
............................................................................. 1
2.1Remove the Control Head........................................................................... 1
2.2Remove the Top...

 
Table of Contents
2-iiMaintenance 

 
Overview
Maintenance2-1
 
1.0Overview 
This chapter explains, step by step, how to disassemble and assemble the radio, to transceiver 
board level. The chapter also contains a list of test equipment required to service the radio.  
2.0Disassemble the Radio 
2.1Remove the Control Head 
Figure 2-1  
Control Head Removal. 
1. 
Insert a small flat blade screw driver, or similar, in the recess between the control head and the 
transceiver (to minimise cosmetic damage to the radio cover start from the bottom...

Disassemble the Radio
2-2Maintenance
2.3Remove the Transceiver Board
Figure 2-3 Transceiver Board Removal.
1.Remove the power and antenna connector retaining clips by inserting a small flat blade screw 
driver between the clip and the top of the chassis wall and gently prying the clip upwards.
2.Remove 13 screws from the transceiver board using a T8 TORX driver.
3.Carefully remove the transceiver board by rotating it out of the chassis: 
Slowly lift the board on the front edge, the side with the connector...