TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(I) PORTABLE INSTRUMENT PANEL MASTER
WARNING LIGHT FAILS TO OPERATE. Other
MASTER WARNING light operates property
(continued).
B.
NOTE
Make a note of how two pins are
alined.
1. Install light bulb.
2. Disconnect wire 509 from warning light.
3. Place red probe of multimeter on wire 509
(coming from wire 27-28-40A splice) and
ground black lead.
4.Turn MASTER switch ON (refer to TM 9-
2350-287-10).
5. Check for 24 ± 3 vdc.
6. Turn MASTER switch off (refer to TM 9-
2350-287-10).
Is voltage indicated?
c.
1. Disconnect wire harness 12260298 con-
nector from harness 12260207.
2. Place one lead of multirneter on pin H of
harness 12260298 and place other lead on
socket of wire 509 coming from pin H.
Is continuity indicated?
Repair wire 509 or replace harness
12260298 (para 7-7). Verify problem
is solved.
Continued on next page
2-140
