LG LRTN22310 User Manual

Page 20

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7-2-2 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

off automatically.

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Circuit

Pin Number

Pin Number

Output Voltage

Compressor

Con1 pin1

Con4 pin1

115 VAC

Condenser fan

Con1 pin1

Con4 pin1

115 VAC

Evaporator fan

Con1 pin1

Con4 pin1

115 VAC

Defrost heater

Con1 pin3

Con4 pin1

115 VAC

F,R-lamp

Con1 pin5

Con4 pin1

115 VAC

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