LG MB-4022G, Руководство по обслуживанию

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5-11
COMPONENTS TEST PROCEDURE RESULTS
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. 250
Ω
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
40 ~ 60
Ω
300~500
Ω