Table 3-13. Multimeter Does Not Indicate 2.3 6 0.1 Vdc With AS SENSOR Switch Placed To SIM STAB 2 Or To SIM STAB 1

TM 1-6625-735-14

Multimeter Does Not Indicate 2.3 6 0.1 Vdc With AS SENSOR Switch Placed To

TABLE NO. 3-13.

SIM STAB 2 Or To SIM STAB 1. (Cont)

TEST OR INSPECTION

CORRECTIVE ACTION

3. Check switch S2 for continuity.

Step 1. If continuity exists, replace circuit board assembly A2.

Step 2. If continuity does not exist, replace switch S2.

4. Connect multimeter between AS SENSOR SIM NO. 2 and SIG GND test jacks.

Go to 5.

5. Place AS SENSOR control to SIM STAB 1. Multimeter shall indicate 2.3 6 0.1 vdc.

Go to 6.

6. If multimeter indicates 0.0 vdc, replace switch S2.

TABLE NO. 3-14. Multimeter Does Not Indicate 0 6 0.15 Vdc When AS SENSOR Control Is Turned

Fully Counterclockwise And Does Not Indicate 12.2 6 1.25 Vdc When AS SENSOR Control Is Turned

Fully Clockwise.

TEST OR INSPECTION

CORRECTIVE ACTION

1. Place AS SENSOR control to SIM STAB 1&2. Go to 2.

2. Connect multimeter between AS SENSOR SIM NO. 1 and SIG GND test jacks.

Go to 3.

3. Turn AS SENSOR control throughout its range from fully counterclockwise (DECR)

to fully clockwise (INCR). Multimeter shall indicate 0 6 0.15 vdc when AS SENSOR

control is fully counterclockwise and shall indicate 12.2 6 1.25 vdc when AS SENSOR

control is fully clockwise. Multimeter shall indicate a continuously adjustable voltage

from counter-clockwise to clockwise position.

Step 1. If multimeter indicates 0.0 vdc, go to 4.

Step 2. If multimeter indication is not correct, replace component board assembly A4.

Step 3. If multimeter indication changes abruptly from -0.15 to 13.45 vdc, replace

potentiometer R2.

4. Check switch S2 for continuity.

Step 1. If continuity exists, replace circuit board assembly A2.

Step 2. If continuity does not exist, replace switch S2.

3-17