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COMPONENTS
Disconnect the 11 pin
connector from P.C.B.
(Refer to schematic diagram)
RELAY OF P.C.B.
(Wire leads removed.)
Note: Relay
Relay 1: P.T.C Relay
(Positive
Temperature
Coefficient)
Relay 2: Convection Motor
Relay 3: Fan motor
Relay 4: Halogen Heater
Relay 5: Up. sheath heater
Relay 6: Back. sheath heater
Relay 7: Microwave
Relay 8: Oven lamp
Relay 10: Damper Motor
FAN MOTOR
(Wire leads removed)
STIRRER
MOTOR
(Wire leads removed)
LGE Internal Use Only
TEST PROCEDURE
Check for P.C.B.connector.
1
3
4
5
7
9
Relay 1,2,3,4,5,6,7,8,10
Measure the resistance.
(Ohm-meter scale:R x 1)
Measure the resistance.
(Ohm-meter scale: R x 1000)
5-13
11
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
RESULTS
Cooking Start
Cooking Start
Normal: Approx. 60 ohm
Abnormal: Infinite or several
ohm.
Normal: Approx. 10~20 kohm
Abnormal: Infinite or several
ohm.
OFF
OFF
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