Power Supply and Ground Circuit For Auto Amp.

POWER SUPPLY AND GROUND CIRCUIT FOR AUTO AMP.

Description

COMPONENT DESCRIPTION




Auto Amp. (Automatic Amplifier)
The auto amp. (1) has a built-in microcomputer which processes information sent from various sensors needed for air conditioner operation. The air mix door motors, mode door motor, intake door motor, blower motor and compressor are then controlled. The auto amp. is unitized with control mechanisms. Signal from various switches and potentio temperature control (PTC) are directly entered into auto amp.




Power Supply and Ground Circuit for Auto Amp.




Potentio Temperature Control (PTC)
The PTC (1) is built into the auto amp. It can be set at an interval of 1 °C (2 °F) in the 18 °C (60 °F) to 32 °C (90 °F) temperature range by turning temperature control dial. The set temperature is displayed.

Component Function Check

Step 1:

Diagnosis Procedure

Step 1-3: