LG MS-74ML, Руководство по обслуживанию

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COMPONENTS TEST PROCEDURE RESULTS
5-10
RELAY 2
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
Check for continuity of relay 2 with an
ohm-meter.
(Remove wire leads from relay 2 and
operate the unit.)
Measure the resistance.
(Ohm-meter scale: R x 100)
Measure the resistance.
(Ohm-meter scale: R x 1000)
POWER
LEVEL
20% 6 sec 16 sec
40% 10 sec 12 sec
60% 14 sec 8 sec
80% 18 sec 4 sec
100% 22 sec 0 sec
Normal:
A~B : Approx. 65 ~ 80 ohm
B~C : Approx. 10 ~ 30 ohm
A~C : Approx. 85 ~ 105 ohm
Abnormal: Infinite or several
ohm.
Normal: Approx. 2-4 K
Ω
Abnormal:
∞
or several
Ω
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.
Relay 1
Relay 2
Power
Transformer
A(RD)
B(BK)
C(WH)