TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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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. 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. 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. CAUTION (1) Remove instrument panel assembly for access (para 7-15). (2) Disconnect connector clamp from speedometer connector. (3) Disconnect connector PX8 from speedometer connector. (4) Set multimeter to volts DC. (5) Connect positive (+) probe of multimeter to connector PX8 pin 3. (6) Connect negative (-) probe of multimeter to ground. (7) Position master power switch to on (TM 9- 2320-366-10-1) and note reading on multimeter. (8) If 24 VDC is not present, repair wire 1546 from connector PX11 pin 3 to connector PX8 pin 3 (para 2-45) or replace WTEC II dashboard cable assembly (para 7-10) or WTEC III dashboard cable assembly (para 7-11). (9) Position master power switch to off (TM 9- 2320-366-10-1). TM 9-2320-366-20-1 Change 1 2-345