TM 43-6625-916-12
OPERATIONAL PROBLEMS
TROUBLESHOOTING SECTION TS006
SYMPTOM
Small yellow and/or red light visible inside Test Set not on the display. Sometimes the yellow light blinks.
MALFUNCTION
Normal operation.
CORRECTIVE ACTION
The DSP Board and Power Supply board contain LEDs. The yellow light on the Power
Supply blinks when the battery is being charged from external power.
SYMPTOM
Yellow light is visible inside Test Set when the battery is not being charged from external power.
MALFUNCTION
Defective Power Supply Board (PN: 20-6870-30).
CORRECTIVE ACTION
Refer to the next higher level of maintenance.
SYMPTOM
Blinking yellow light is not visible inside Test Set when the battery is being charged from external power.
MALFUNCTION
Defective battery charging from external supply.
CORRECTIVE ACTION
Perform the battery charging troubleshooting Section TS001 (WP0011 00).
END OF WORK PACKAGE
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