Motorola Radius Cm200 Cm300 Pm400 Basic 6802966c15 A Manual

Chapter 1
INTRODUCTION
1.0 Scope of Manual
This manual is intended for use by service technicians familiar with similar types of equipment. It 
contains service information required for the equipment described and is current as of the printing 
date. Changes which occur after the printing date may be incorporated by a complete Manual 
revision or alternatively as additions.
2.0 Warranty and Service Support
Motorola offers long term support for its products. This support includes full exchange and/or...

1-2INTRODUCTION
3.0 Replacement Parts Ordering
3.1 Basic Ordering Information
When ordering replacement parts or equipment information, the complete identification number 
should be included. This applied to all components, kits, and chassis. If the component part number is 
not known, the order should include the number of the chassis or kit of which it is a part, a sufficient 
description of the desired component to identify it.
3.2 Motorola Online
Motorola online users can access our on-line catalog...

Radio Model Information1-3
3.6 Parts Identification
Radio Products and Services Division (RPSD)*
(United States and Canada)
1-800-422-4210, menu 3
* The Radio Products and Services Division (RPSD) was formerly known as the Accessories and 
Aftermarket Division (AAD)
4.0 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...

1-4INTRODUCTION
THIS PAGE INTENTIONALLY LEFT BLANK 

Chapter 2
MAINTENANCE
1.0 Introduction
This chapter provides details about the following:
•Preventive maintenance (inspection and cleaning).
•Safe handling of CMOS and LDMOS devices.
•Disassembly and reassembly of the radio.
•Repair procedures and techniques.
•Installation of Option Boards.
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...

2-2MAINTENANCE
Cleaning Internal Circuit Boards and Components
Isopropyl alcohol (100%) 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 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...

Repair Procedures and Techniques — General 2-3
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 Parts center listed in the “Piece Parts” section in Chapter 1 of this manual.
Rigid Circuit Boards
This family of radios uses bonded, multi-layer,...

2-4MAINTENANCE
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
Volume Knob Removal
1. Insert the flat screwdriver between the control head plastic and the volume knob and push the 
volume knob upwards....

Radio Disassembly - Detailed2-5
Figure 2-2 Control Head Removal
3. To free the control head, disconnect the flat cable from the chassis assembly See Figure 2-3.
Figure 2-3 Flat Cable Removal
Main PCB Connector 

2-6MAINTENANCE
6.2 Top Cover Removal
1. Place the radio in a vertical position as shown in Figure 2-4.
Figure 2-4 Top Cover Removal (Chassis Vertical).
2. Insert the flat screw driver near the ‘T’ and push the plastic cover up until it pops over the ‘T’ 
mount boss. Perform the same function on the ‘T’ location on the other side of the chassis.
3. Next place the radio in a horizontal position as shown in Figure 2-5 and insert the flat screw 
driver into the slot to release the upper cover.
Figure 2-5 Top...