2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(I) PORTABLE INSTRUMENT PANEL MASTER
WARNING LIGHT FAILS TO OPERATE. Other
MASTER WARNING light operates properly.
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• Digital multimeter (DMM) (Item 13, Appendix 1)
• MASTER switch set to OFF (refer to TM
• General mechanic’s tool kit (Item 24,
9-2350-287-10).
Appendix 1)
NOTE
• Instead of using multi meter
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 lens and light bulb from MASTER
WARNING light socket.
2. Place red lead of multimeter in light socket
and ground black lead.
3. Turn MASTER switch ON (refer to TM 9-
2350-287-1 O).
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
2-139
TM 9-2350-287-20-1
