TABLE NO. 3-18. Multimeter Does Not Indicate 5.01 6 0.53 Vdc When PITCH RATE GYRO Control Is Turned Fully Counterclockwise And Does Not Indicate -5.01 6 0.53 Vdc When PITCH RATE GYRO Control Is Turned Fully Clockwise.

TM 1-6625-735-14

TABLE NO. 3-18. Multimeter Does Not Indicate 5.01 6 0.53 Vdc When PITCH RATE GYRO Control

Is Turned Fully Counterclockwise And Does Not Indicate -5.01 6 0.53 Vdc When PITCH RATE

GYRO Control Is Turned Fully Clockwise.

TEST OR INSPECTION

CORRECTIVE ACTION

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

jacks. Go to 2.

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

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

clockwise (NOSE DN) to fully clockwise (NOSE UP). Multimeter shall indicate 5.01 6

0.53 when PITCH RATE GYRO control is fullycounterclockwise and shall indicate

-5.01 6 0.53 when PITCH RATE GYRO control is fully clockwise. Multimeter shall

indicate a continuously adjustable voltage from counterclockwise to clockwise position.

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

Step 2. If multimeter indication is not correct, replace circuit board assembly A2.

Step 3. If multimeter indication changes abruptly from -5.54 to 5.54 vdc, replace

potentiometer R7.

4. Check switch S16 for continuity.

Step 1. If continuity exists, replace component board assembly A4.

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

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.

TEST OR INSPECTION

CORRECTIVE ACTION

1. Turn PITCH RATE GYRO control for a multimeter indication of 1.0 vdc. Go to 2.

2. Place PITCH RATE GYRO control to SIM STAB 1. Multimeter shall indicate 1.06

0.2 vdc.

Step 1. If multimeter indication is not correct, replace switch S16.

Step 2. If multimeter indication is correct, go to 3.

3. Connect multimeter between PITCH RATE GYRO SIM STAB 2 and SIG GND test

jacks. Go to 4.

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