LG MS-2022W - Timer Motor Test

COMPONENTS TEST PROCEDURE RESULTS
5-11
TIMER MOTOR
(Wire leads removed)
Measure the resistance.
(Ohm-meter scale: R x 100)
Measure the resistance.
(Ohm-meter scale: R x 1000)
Note: A is ON,OFF switch B is
power supply terminal of the
timer motor C is defrost switch
NOTE : • A MICROWAVE LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS
SERVICED FOR ANY REASON.
• MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION.
• WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE
CONNECTOR, NOT THE WIRES.
C
(2-3)
B
(2-M)
A
(1-2)
A
B
C
A
Turn on
Approx. 25 KΩ
Turn Off
B
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
Normal:
Abnormal: ∞ or several Ω
Normal: Approx. 100~200 Ω
Abnormal: ∞ or several Ω
A ~ B A ~ C
30 ~ 50 Ω
300~500 Ω