8-2-2 Load / Buzzer Drive & Open Door Detection Circuit
1. Load Drive Condition Check
To measure outputs of the control board, check voltages between the pins for the following components:
NOTE: When the door of the freezer/refrigerator is left open for 7 minutes or longer, the lamp of the
freezer’refrigerator turns.
2. Fan motor driving circuit (freezing compartment fan)
- 28 -
Pin1 & 2 of con4
MOTOR OFF 2V or less
MOTOR ON 13V~15V
Circuit Pin Number Pin Number Output Voltage
Compressor Con2 pin11 Con1 pin1 115 VAC
Condenser fan Con2 pin11 Con1 pin1 115 VAC
Defrost heater Con2 pin9 Con1 pin1 115 VAC
F,R-lamp Con2 pin,3.5 Con1 pin1 115 VAC
Water valve Con2 pin7 Con1 pin1 115 VAC
Dew heater Con2 pin3 Con1 pin1 115 VAC
Water valve Con2 pin1 Con1 pin1 115 VAC
To Next Page
Loading...
