5-10
COMPONENTS
TEST PROCEDURE
RESULTS
RELAY 2
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
Normal: Approx. 200 ~ 400
Ω
Abnormal:
∞
or several
Ω
Normal: Approx. 10~20 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.
20%
40%
60%
80%
100%
6 sec
10 sec
14 sec
18 sec
22 sec
16 sec
12 sec
8 sec
4 sec
0 sec
POWER
LEVEL
Relay 1
Relay 2
Power
Transformer
A
B
230V 21V COM.
Measure the resistance.
(Ohm-meter scale: R x 100)
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 1000)
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Summary of Contents for MS2647GR
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