TM 1-1520-238-T-4
692
Change 10
630.
TEMP TR INDICATOR LIGHTS (cont)
630
8. Check resistance between P201S and P201K.
Is resistance greater than 2.45 megohms?
YES
Go to step 10.
NO
Go to step 9.
9. Remove TGB thermistor probe R10
(TM 1-1520-238-23). Check for short between
P201A and ground.
Does short exist?
YES
Repair shorted wire between
P201A and thermistor RT10
(TM 1-1520-238-23). Go to
paragraph 613.
NO
Install IGB thermistor probe
RT10 (TM 1-1520-238-23).
10. Check resistance between P201S and P201E.
Is resistance greater than 2.45 megohms?
YES
TGB temperature alarm
(TM 1-1520-238-23).
NO
Go to step 11.
11. Remove TGB thermistor probe RT9
(TM 1-1520-238-23). Check for short between
P201E and ground.
Does short exist?
YES
Repair shorted wire between
P201E and thermistor RT9
(TM 1-1520-238-23). Go to
paragraph 612.
NO
Replace TGB thermistor probe
RT15 (TM 1-1520-238-23).
END OF TASK