TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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TM 9-2320-366-20-1  Change 1 2-607  (1) Position main light switch to SER DRIVE  (TM 9-2320-366-10-1).  (2) If neither composite taillight illuminates,  go to step 6 of this fault.  (3) Position main light switch to OFF  (TM 9-2320-366-10-1).