Table 2-2 TROUBLESHOOTING - Continued
TEST OR INSPECTION
Step 2. Use Multimeter AN/URM-105 to check switches S3 and S4 for bad contacts.
If contacts are bad or there is not +20 volt dc indication on meter after
reconnecting POWER cable, higher category of maintenance required.
3. No indication on front panel meter with METER FUNCTION switch at RCV LEVEL
Step 1. Check for loose or damaged RCVR TRANS AUDIO or AUX RCVR AUDIO cables.
Be sure the associated receiver is working properly and the appropriate
connectors are clean and fit tightly.
Step 2. Use Multimeter AN/URM-105 to check switches S3 and S1 for bad contacts.
If contacts are bad, higher category of maintenance required.