TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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VOLTAGE TEST CAUTION Change 1 2-753 TM 9-2320-365-20-1 Use care when testing electrical connectors. Do not damage connector pins or sockets with multimeter probes. Failure to comply may result in damage to equipment. NOTE CONTINUITY TEST Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back and are capable of making good contact. WARNING Remove rings, bracelets, watches, necklaces, and any other jewelry before working around vehicle. Jewelry can catch on equipment and cause injury or short across electrical circuits and cause severe burns or electrical shock. (1) Set multimeter to volts DC. (2) Connect positive (+) probe of multimeter to relay K28 terminal 30 on PDP. (3) Connect negative (-) probe of multimeter to ground. (4) Position main light switch to SER DRIVE (TM 9-2320-365-10) and note reading on multimeter. (5) If 24 VDC is not present, repair wire 1957 from K28 terminal 30 on PDP to circuit breaker CB41 terminal 2 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). (6) Position main light switch to OFF (TM 9-2320-365-10). (1) Remove PDP cover (para 16-2). (2) Remove relay K28 from PDP. (3) Set multimeter to ohms. (4) Connect positive (+) probe of multimeter to connector J130 socket E. (5) Connect negative (-) probe of multimeter to relay K28 terminal 87 on PDP and note reading on multimeter. (6) If continuity is not present, go to step 6 of this fault.