TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
6.
INDICATOR/PANEL LIGHTS DO NOT OPERATE (MODEL A ONLY) (continued).
2.
TEST OPTIONS
KNOWN INFO
Circuit breaker OK.
Voltage Test.
Are 2228 volts
measured on supply
REASON FOR QUESTION
harness connector (P1),
POSSIBLE PROBLEMS
position B?
To verify the integrity of
Supply harness faulty.
the interface with the
Control box circuit board
HEMTT chassis.
faulty.
Replace supply
NO
YES
4-116
Change 1