TABLE NO. 3-7. All STABILATOR And SAS SYSTEM Indicators Do Not Go On When LAMP TEST Switch Is Pressed And Held And Indicators Do Not Go Off When LAMP TEST Switch Is Released

TM 1-6625-735-14

Multimeter Does Not Indicate -15.15 6 0.15 Vdc When POWER 115 VAC 400 Hz

TABLE NO. 3-6.

Test Set Circuit Breaker Is Pushed In. (Cont)

TEST OR INSPECTION

CORRECTIVE ACTION

14. Connect multimeter + lead to - terminal of PS1 and - lead to T/C terminal of PS1.

Step 1. If multimeter indicates -15 6 0.15 vdc, trouble is elsewhere. Go to 15.

Step 2. If multimeter does not indicate -15 6 0.15 vdc, replace PS1.

15. Pull out POWER 115 VAC 400 Hz TEST SET circuit breaker.

TABLE NO. 3-7. All STABILATOR And SAS SYSTEM Indicators Do Not Go On When LAMP

TEST Switch Is Pressed And Held And Indicators Do Not Go Off When LAMP TEST Switch Is

Released.

TEST OR INSPECTION

CORRECTIVE ACTION

1. Press and hold LAMP TEST control and check that all STABILATOR INDICA-

TORS and SAS indicators go on.

Step

all indicator lamps are on, go to 5.

Step

all indicator lamps are off, go to 3.

Step

all STABILATOR INDICATOR lamps are off, go to 2.

Step

all SAS indicator lamps are off, go to 3.

Step

one or more indicator lamps are off, go to 4.

2. Check filter FL4 for continuity.

Step 1. If continuity exists, go to 3.

Step 2. If continuity does not exist, replace filter FL4.

3. Check switch S24 for continuity.

Step 1. If continuity exists, replace component on board assembly A3.

Step 2. If continuity does not exist, replace switch S24.

4. Check for malfunctioning lamps.

Step 1. If any lamps are malfunctioning, replace lamps.

Step 2. If all lamps are good, replace component on board assembly A3.

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