SYMPTOM INDEX

TM 11-6625-291-14/TO 33A1-7-23-1

SYMPTOM INDEX

Page

METER INDICATION

No meter indication at all positions of impedance control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Meter indication only when impedance control is set at 300 ohms or

below (at 1,000 ohms or below for Output Meters TS-585C/U or TS-585D/U) . . . . . . . . . . . . . . . . . 6-4

Meter indication only when impedance control is set at 400 ohms or

above (at 1,250 ohms or above for Output Meters TS-585C/U or TS-585D/U) . . . . . . . . . . . . . . . . . 6-4

Meter indication too low at all positions of impedance control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Meter indication too low when impedance control is set at 300 ohms

below (at 1,000 ohms or below for Output Meters TS-585C/U or TS-585D/U) , . . . . . . . . . . . . . . . . 6-4

Meter indication too low when impedance control is set at 400 ohms or

above (at 1,250 ohms or above for Output Meters TS-585C/U or TS-585D/U) . . . . . . . . . . . . . . . . . 6-5

Meter indication too high at all positions of impedance control . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. No meter indication at all positions of impedance control.

Step 1:

Check for bad meter.

See paragraph 6-16 for testing procedures.

Check for poor contact or no contact of wiper arms on rings of impedance control.

Step 2:

See paragraph 6-20 for cleaning and adjustment procedures

Step 3:

Check for poor contact or no contact of rotary switch parts.

See paragraph 6-22 for testing procedures.

6-3