Table 3-19. Multimeter Does Not Indicate 1.0 6 0.2 Vdc When PITCH RATE GYRO Switch Is Placed To SIM STAB 1, SIM STAB 2, Or SIM STAB 1&2

TM 1-6625-735-14

Multimeter Does Not Indicate 1.0 6 0.2 Vdc When PITCH RATE GYRO Switch Is

TABLE NO. 3-19.

Placed To SIM STAB 1, SIM STAB 2, Or SIM STAB 1&2. (Cont)

TEST OR INSPECTION

CORRECTIVE ACTION

4. Place PITCH RATE GYRO control to SIM STAB 1&2 and then to SIM STAB 2.

Multimeter shall indicate 1.0 6 0.2 vdc in each position. Go to 5.

5. If multimeter indication is not correct, replace switch S16.

Multimeter Does Not Indicate -0.69 6 0.08 Vdc When PITCH RATE GYRO Switch

TABLE NO. 3-20.

Is Placed To SIM SAS 1.

TEST OR INSPECTION

CORRECTIVE ACTION

1. Connect multimeter between PITCH RATE GYRO SIM SAS and SIG GND test

jacks. Go to 2.

2. Place PITCH RATE GYRO control to SIM SAS 1. Go to 3.

3. Turn PITCH RATE GYRO control throughout its range from fully counterclock-

wise (NOSE DN) to fully clockwise (NOSE UP). Multimeter shall indicate -0.69 6 0.08

when PITCH RATE GYRO control is fully counterclockwise and shall indicate 0.69 6

0.08 when PITCH RATE GYRO control is fully clockwise. Digital multimeter shall

indicate a continuously adjustable voltage from counterclockwise to clockwise position.

Go to 4.

4. If multimeter indication is not correct, go to 5.

5. Check switch S16 for continuity.

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

Step 2. If continuity does not exist, replace switch S16.

Multimeter Does Not Indicate -0.69 6 0.08 Vdc With PITCH RATE GYRO Switch

TABLE NO. 3-21.

Set To SIM SAS (WO).

TEST OR INSPECTION

CORRECTIVE ACTION

1. Turn PITCH RATE GYRO control fully counterclockwise (NOSE DN). Go to 2.

2. Place PITCH RATE GYRO control to SIM SAS (WO). Multimeter shall indicate

-0.696 0.08. Go to 3.

3-21