Motorola MTR2000, Instruction / Field Service Manual

Page: 13 / 42

Table of Contents
68P81096E90-F
xi
08/06/07
ROUTINE MAINTENANCE 68P81096E39
Figure 1. Front Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
TROUBLESHOOTING 68P81094E61
Figure 1. Procedure 1 – Routine Site Visit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Procedure 2 – Station Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. Front Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. SCM Service Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 5. Service Mic Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 6. Test Equipment Setup for Verifying Transmitter Circuitry . . . . . . . . . . . . . . . . . . . . . 14
Figure 7. Test Equipment Setup for Verifying Receiver Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 18
RECEIVER MODULE,
Models CLN1215 (806 to 825 MHz) and CLF1270 (896 to 915 MHz)
68P81094E62
Figure 1. 800/900 MHz Receiver Module Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2. 800/900 MHz Receiver Module Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . 7
EXCITER MODULE,
Models CLN1235 (851 to 870 MHz) and CLF1280 (935 to 941MHz)
68P81094E63
Figure 1. 800/900 MHz Exciter Module Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Figure 2. 800/900 MHz Exciter Module Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . 5
75 W POWER AMPLIFIER MODULE,
Models CLN1232 (851 to 870 MHz) and CLF1260 (935 to 941MHz)
68P81094E64
Figure 1. 800/900 MHz 75 W Power Amplifier Module Input/Output . . . . . . . . . . . . . . . . . . . . 2
Figure 2. 800/900 MHz 75 W Power Amplifier Module Functional
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MAINTENANCE AND TROUBLESHOOTING
STATION MODULES
RECEIVER CIRCUITRY
TRANSMITTER CIRCUITRY