TM 5-3610-253-14
Table 5-23. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
ERROR MESSAGE 83 - Cont
The light barrier does not react to the test signal before cutting cycle
starts with output condition interrupted.
Check adjustment of light barrier.
Step 1.
(a) Perform light barrier adjustments (paragraph 5-40.62).
(b) If adjustment cannot be made, replace defective part.
(c) If adjustment is correct, proceed to step 2.
Visually check ribbon cable between circuit boards IAR and AR and
Step 2.
check continuity of all pins.
(a) If ribbon cable is defective, replace ribbon cable
(b) If ribbon cable is not defective, proceed to step 3.
Replace circuit board LS (paragraph 5-40.52).
Step 3.
If malfunction persists, proceed to step 4.
Replace circuit board IAR (paragraph 5-40.28).
Step 4.
If malfunction persists, proceed to step 5.
Replace circuit board AR (paragraph 5-40.28).
Step 5.
If malfunction persists, refer to electrical and electronic
schematics for fault isolation.
