ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
4-48
TABLE 4-4. UNIT TROUBLESHOOTING (CONTINUED)
Not OK
OK
OK
CIM DISPLAY SCREEN DOES NOT RESPOND TO KEYPAD INPUT
CIM dispaly screen does not
respond to keypad input.
Check keyboard power supply (PS-1)
for 24VDC. Refer to para. 4.6.5.
Check PS-1 for 5VDC
output.
Check for 24VDC at TB4. Refer
to Schematic, FO-1.
Not OK
Check wiring between TB4 and
PS-1. Refer to Schematic, FO-1.
OK
Repair wiring.
Not OK
Check for approx
24VDC at J24-6.
Not OK
Trace wiring back to Dead
Crank switch. Refer to
Schematic, FO-1.
Not OK
Replace keypad.
Check wiring to
J24-6 at TB4.
Replace PS-1.
Not OK
OK
