TM-9-2350-275-BD Battlefield Damage Assessment and Repair for M113 Family Download
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TM 9-2350-275-BD COMMUNICATIONS SYSTEM 2. Verify that the distant station is too far away for squelch operation by trying to communicate with the distant station in the NEW ON squelch position. 3. Make sure the antenna system is properly connected. 4. Make sure the antenna system is properly orientated by untying the whip antenna and/or by repositioning the vehicle. 5. Check the antenna tuning circuits located in the antenna matching unit by having someone listen for the sound of relays operating when the frequency is changed. a. If the sound of relays operating is not heard, manually tune the MX-6707 to the proper frequency. b. If the problem still exists, go to step 6. 6. Replace the radio with a known operational radio. a. If communication has been restored, repair the radio in accordance with standard maintenance procedures. b. If the problem still exists, refer to the troubleshooting procedures in TM 11- 5820-401-12. 11-12. OBSERVABLE SYMPTOM THE AUXILIARY RECEIVER IS NOT OPERATING PROPERLY Detailed Assessment Steps: 1. Verify that the aux receiver is firmly connected to its mount by loosening the receiver. Move the receiver forward. Line up the guide pins and push the aux receiver firmly back into place. Tighten the clamps. 2. Verify that the aux receiver circuit breaker has not been tripped by turning the aux receiver power switch to OFF and then back to ON RESET. 3. Check that the cables are connected properly and are in good condition. a. If a procedures. (2) defective cable is found, follow the procedures listed below: Replace the defective cable in accordance with standard repair Replace the defective cables with an acceptable replacement cable listed in para. 11-35. 11-12