LG Electronics MS3447GRS service manual 5-10, Relay, Components, Test Procedure, Results

COMPONENTS	TEST PROCEDURE		RESULTS
RELAY 2	Check for continuity of relay 2 with an	POWER
	ohm-meter.
		LEVEL
	(Remove wire leads from relay 2 and
	operate the unit.)
		1	4 sec	18 sec
		2	6 sec	16 sec
		3	8 sec	14 sec
		4	10 sec	12 sec
		5	12 sec	10 sec
		6	14 sec	8 sec
		7	16 sec	6 sec
		8	18 sec	4 sec
		9	20 sec	2 sec
		10	22 sec	0 sec

Relay 2

FAN MOTOR	Measure the resistance.	Normal:
(Wire leads removed)	(Ohm-meter scale: R x 1)	A: Approx. 85	~ 100 ohm
		B: Approx. 10	~ 25 ohm
	B	Abnormal: Infinite or several
		ohm.

A

TURNTABLE	Measure the resistance.	Normal: Approx. 100~150 ohm
MOTOR	(Ohm-meter scale: R x 1)	Abnormal: Infinite or several
(Wire leads removed)
		ohm.

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.

Copyright © 2007 LG Electronics. Inc. All right reserved.	5-10	LGE Internal Use Only
Only for training and service purposes