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Section II. TROUBLESHOOTING | Up
TM-5-6115-612-34 Gas Turbine Engine Driven Aviation Generator Set Manual | Next
Table 2-4. Troub leshooting - continued |
ARMY
TM 5-6115-612-34
MARINE CORPS TM 6115-34/8
AIR FORCE
TO 35C2-3-471-2
NAVY
AG-320BO-MME-OOO
2-3. GENERAL. (cont)
Table 2-4. Troub leshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 4.
Disconnect one lead from capacitor C1.
Use an ohmmeter and
measure resistance across C1.
If resistance is below 1k ohms, replace C1 (paragraph 10-2).
If resistance is above 1k ohms, go to Step 5.
Step 5.
Disconnect one lead from resistor VR1.
Use an ohmmeter and
measure resistance across VR1.
If resistance is below 1k ohms, replace VR1 (paragraph
10-2).
If resistance is above 1k ohms, check for shorts between
VR1, E1, and E2.
Repair as necessary.
2.
NO CONTROL PANEL POWER - PROBLEM ISOLATED TO EECM.
Step 1.
Use an ohmmeter and check resistance between J6-M(+) and
J4-C(-).
If resistance is more than 3 ohms, measure resistance
directly across diode CR5. Observe polarity of CR5. If
resistance is more than 3 ohms, replace CR5 (paragraph
10-2).
If resistance is less than 3 ohms, check for continuity
between J6-M and power supply circuit card connector P1-2.
If continuity present, go to Step 2.
If no continuity, repair or replace wires as necessary.
Step 2.
Check for continuity between J6-N and power supply circuit card
connector P1-4.
If continuity present, reconnect P1 and go to Step 3.
If no continuity, repair or replace wires as necessary.
2-41
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