TM 9-2350-256-20-1
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Troubleshooting Procedure
B.O. Service Condition (IR Headlights)
Symptom
IR headlights malfunctioning
Malfunction
IR headlights fail to operate. Do steps 1 thru 19.
CORRECTIVE ACTION
WARNING
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct
short may result in instant heating of tools, damage to equipment, and injury or death to personnel.
1.
Loosen four screws (1) and remove headlight cover (2). Remove lamp (3) and disconnect connector.
Place red lead of multimeter in socket A of wire 18. Turn MASTER switch ON, press B.O. DRIVE
key and ENTER key of main light switch, place B.O. SELECTOR switch to IR and check for voltage.
Turn MASTER and main lighting switches OFF. If voltage is present, replace lamp. If voltage is not
present, go to step 2.
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