Test H: A Single Speed Control Button Is Inoperative

PINPOINT TEST H: A SINGLE SPEED CONTROL BUTTON IS INOPERATIVE

H1:

H1 Continued:

Normal Operation
The speed control actuator sends a signal through circuit 151 (LB/BK) to the speed control switches, which passes through the clockspring. The signal is sent back through the clockspring to circuit 848 (DG/OG).

Possible Causes
- Speed control switch
- Speed control actuator