TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 144 of 1205
TM 9-2320-387-24-l ELECTRICAL SHORT ON BODY CONNECTOR SIDE OF ( POSSIBLE PROBLEMS 1 ROTARY SWITCH PCB BODY CONNECTOR BODY CONNECTOR CABLE HARNESS KNOWN INFO I ROTARY SWITCH OK POSSIBLE PROBLEMS PCB BODY CONNECTOR BODY CONNECTOR CABLE HARNESS fiz?J DIAGNOSTIC FLOtiCHART -- IS THERE AN OPEN CIRCUIT FROM 1. STUICE-R TEST 91 (Page 2-508) PIN B TO PIN R AND FROM PIN 2. MULTIMETER B TO PIN S ON THE ROTARY SWITCH (WITH THE SWITCH IN THE STOP POSITION)? REASON FOR QUESTION Checking the rotary switch 1 1 first makes it easier to check IS THERE ABOUT 0 VOLT AT PINS A,B,D,G AND H OF THE PCB BODY CONNECTOR? r OPTIONS 1. STEXE-R TEST 89 (Page 2-506) 2. MULTIMETER REASON F?R QUESTION If there is voltage at any of these pins, then the PCB must have a short in it. 0 YES REPLACE THE BODY CONNECTOR HARNESS. GO TO A2, PAGE 2-82, TO CONTINUE TESTING. 2-84