COMPONENTS

TEST PROCEDURE

RESULTS

Antenna

Gasket

Chassis

 

 

 

 

 

Filament

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE: When testing the magnetron, be sure to install the magnetron gasket

 

 

in the correct position and be sure that the gasket is in good condition.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HIGH VOLTAGE

Measure the resistance.

 

Normal: Momentarily indicates

CAPACITOR

(Ohm-meter scale: Rx1000)

 

several ohms, and

 

• Terminal to terminal.

 

then gradually returns

 

 

 

 

 

to infinite.

Measure the resistance.

Normal: Infinite.

(Ohm-meter scale: Rx1000)

 

• Terminal to case.

 

HIGH VOLTAGE

Measure the continuity (Forward).

Normal: Continuity.

DIODE

(Ohm-meter scale: Rx10000)

Abnormal: Infinite.

NOTE :

 

 

Some inexpensive meters

 

 

may indicate infinite

 

 

resistance in both direction.

Measure the continuity (Reverse).

Normal: Infinite.

 

(Ohm-meter scale: Rx10000)

Abnormal: Continuity.

LGE Internal Use Only

5-9

Copyright © 2007 LG Electronics. Inc. All right reserved.

 

 

Only for training and service purposes

Page 19
Image 19
LG Electronics MS3447GRS High Voltage, Measure the resistance Normal Momentarily indicates, Capacitor, Diode

MS3447GR, MS3447GRS specifications

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