LG MC-9283JR Service Manual page 22

COMPONENTS
CIRCULATION MOTOR
(Wire leads removed)
NOTE:
*( ) = WIRE COLOR
RELAY 4, 6 OF P.C.B
(Disconnect the 9 pin
connector from P.C.B)
See Schematic Dagram on
page 4-3)
RELAY 2, 3, 5 OF P.C.B
(Wire leads removed.)
RY2 : Microwave
RY3 : Grill
RY5 : Convection
NOTE : A MICROWAVE ENERGY LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS
SERVICED FOR ANY REASON.
MAKE SURE THE WIRE LEADS ARE CORRECT POSITION.
WHEN REMOVING THE WIRE LEAD FROM THE PARTS, BE SURE TO GRASP THE
CONNECTOR, NOT THE WIRES.
TEST PROCEDURE
230V(BL)
COM
(YL)
1
CN2
3
5
7
9
Relay 6
Relay 4
Relay 2 Relay 3 Relay 5
5-12
RESULTS
Normal : COM-230V : Approx. 150 Ω
Abnormal : Infinite or several ohm.
Cooking Start
Cooking Start
OFF
OFF