TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(17) PORTABLE INSTRUMENT PANEL LIGHTS FAIL
TO OPERATE. All other lights operate.
Initial Setup:
Tools/Test Equipment:
Digital multimeter (DMM) (Item 13, Appendix I)
General mechanic’s tool kit (Item 24,
Appendix I)
Equipment Conditions:
MASTER switch set to OFF (refer to TM
9-2350-287-10).
Panel lighting switch set to bright
(refer to TM 9-2350-287-10).
NOTE
l Instead of using multimeter
for voltage
check, STE/lCE
troubleshooting,
INDIVIDUAL
BATTERY VOLTAGE TEST-TEST
89 maybe performed.
. Instead of using multi meter
for continuity check, STE/lCE
troubleshooting, TEST 91 may
be performed.
A.
1. Remove defective panel light from driver’s
instrument panel (para 7-7). -
2. Place multirneter red lead in center contact
of light bulb socket and ground black lead.
3. Turn MASTER switch ON (refer to TM 9-
2350-287-10).
4. Check for 24 ± 3 vdc.
5. Turn MASTER switch OFF (refer to TM 9-
2350-287-10).
Is voltage indicated?
Replace light bulb (para 7-6). Verify
problem is solved.
Continued on next page
2-195
