Test Procedures - Goldstar MVH1670ST Service Manual

COMPONENTS
CAPACITOR
DIODE
Some inexpensive ohm
meters may indicate
infinite resistance in
both directions.
RELAY 7
VENTILATION MOTOR
LGE Internal Use Only

TEST PROCEDURES

1. Remove wire leads.
2. Measure resistance. (ohm meter scale: Rx1000)
• Terminal to terminal
• Terminal to case
1. Measure continuity. Forward.
(ohm meter scale: Rx1000)
2. Measure continuity. Reverse.
(ohm meter scale: Rx1000)
1. Measure continuity. (ohm meter scale: Rx1)
2. Remove the lead wires and operate oven
at power level 1 through power level 10.
1. Remove wire leads.
2. Measure resistance. (ohm meter scale: Rx1)
High speed: Blue and Black wire
Low speed: Blue and White wire
7-16
Normal:
Momentarily infinite and
then soon reach 10 Mega.
ohms
Normal: Infinite.
Normal:Continuity.
Abnormal: Below 100
ohms
Normal: Infinite.
Abnormal: Below 100
ohms
Power
Open
Level
1 4 Sec
2
6 Sec
3
8 Sec
4
10 Sec
5 12 Sec
6 14 Sec
7
16 Sec
8
18 Sec
9 20 Sec
10 22 Sec
Normal:
High speed: Approximately
Low speed: Approximately
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
RESULTS
Close
18 Sec
16 Sec
14 Sec
12 Sec
10 Sec
8 Sec
6 Sec
4 Sec
2 Sec
0 Sec
60 to 75 ohm
110 to 125 ohm