TM-9-2320-365-20-1 LMTV Unit Maintenance Manual M1078 Series - Volume 1 Download
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VOLTAGE TEST NOTE Inspect connector pins/sockets for damage, corrosion, and serviceability. Check that connector pins are not pushed back or not capable of making good contact. CAUTION WARNING 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. 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. Change 1 2-496.1 TM 9-2320-365-20-1 (11) Position lighted indicator display in instrument panel assembly with four screws. (12) Tighten four screws to 6-10 lb-in. (1 N·m). (13) Connect batteries (para 7-48). (1) Set multimeter to volts DC. (2) Connect positive (+) probe of multimeter to connector PX7 pin 27. (3) Connect negative (-) probe of multimeter to ground. (4) Connect batteries (para 7-48). (5) Position master power switch to on (TM 9-2320-365-10) and note reading on multimeter. (6) Position master power switch to off (TM 9-2320-365-10). (7) Disconnect batteries (para 7-48). (8) If 24 VDC is not present, repair wire 1658 from connector PX7 pin 27 to terminal board TB1 position 61 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). (9) If continuity is present, replace front air pressure transmitter (para 7-36). (10) Connect lighted indicator display connector to connector PX7.