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COMPONENTS
Disconnect the 9 pin
connector from P.C.B.
(Refer to schemetic diagram)
RELAY 2, RELAY 3, RELAY 5
OF P.C.B.
(Wire leads removed.)
Relay 2: Microwave
Relay 3: Grill
Relay 5: Convection
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
LGE Internal Use Only
TEST PROCEDURE
Check for P.C.B. connector.
1 2 3 4 5 6 7 8 9
Relay 2
Relay 3
Relay 5
Measure the resistance.
(Ohm-meter scale:R x 1)
Measure the resistance.
(Ohm-meter scale:R x 1000)
5-11
RESULTS
Cooking Start
Cooking Start
Normal: Approx. 300 ~500 ohm
Abnormal: Infinite or several
ohm.
B
Normal: Approx. 10~20 kohm
Abnormal: Infinite or several
ohm.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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