TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(12) FRONT BLACKOUT (BO) MARKER LEDS FAIL TO
OPERATE. All other lights operate.
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
l Digital multimeter (DMM) (Item 13, Appendix I)
l MASTER switch set to OFF (refer to TM
l General mechanics tool kit (Item 24,
9-2350-287-10).
Appendix I)
. Lighting switch in BO MARKER position
(refer to TM 9-2350-287-10).
NOTE
l Instead of using multi meter
for voltage
check, STE/ICE
troubleshooting, INDIVIDUAL
BATTERY VOLTAGE TEST-TEST
89 maybe performed.
l Instead of using multi meter
for continuity check, STE/lCE
troubleshooting, TEST 91 may
be performed.
l This procedure maybe used for right
and left marker light.
A. 1. Remove four screws and cover from head-
light assembly. Remove BO LED from bot-
tom socket of headlight assembtl.
2. Place red lead of multimeter in LED socket
and ground black lead.
3. Have assistant turn MASTER switch ON
(refer to TM 9-2350-287-10).
4. Check for 24 ± 3 vdc.
5. Have assistant turn MASTER switch OFF
(refer to TM 9-2350-287-10).
Is voltage indicated?
Replace LED (para 7-31). Verify
problem is solved.
Continued on next page
2-178