Alignment And Troubleshooting Procedures; Synthesizer; Test Equipment Required - GE MLSH041 Maintenance Manual

5 ALIGNMENT AND TROUBLESHOOTING PROCEDURES

5.1

SYNTHESIZER

5.1.1 Test Equipment Required

LBI-38438A
ALIGNMENT AND TROUBLESHOOTING PROCEDURES
Radio maintenance is facilitated by using the Troubleshooting Procedures and servicing
techniques unique to this radio. The Troubleshooting Procedures are designed to lead the
serviceman rapidly to the defective component or circuit.
Troubleshooting procedures are provided for most major problems that might arise in the
Transmitter, the Receiver, and the System Control/Synthesizer Board.
Alignment and Troubleshooting for Synthesizer Circuitry on System Control/Synthesizer
Board CMC-551A/B are detailed in the following subsections.
1. Audio Oscillator
2. Deviation Monitor
3. Oscilloscope
4. Frequency Counter
5. RF Wattmeter (50 ohms, 100 W)
6. VTVM
7. Digital Voltmeter
8. Power Supply, 13.6 VDC regulated.
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