Test Procedure - LG MH-1355M Service Manual

COMPONENTS
HIGH VOLTAGE
CAPACITOR
HIGH VOLTAGE
DIODE
NOTE :
Some inexpensive meters
may indicate infinite
resistance in both direction.

TEST PROCEDURE

ANTENNA
GASKET
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.
Measure the resistance.
(Ohm-meter scale: Rx1000)
• Terminal to terminal.
Measure the resistance.
(Ohm-meter scale: Rx1000)
• Terminal to case.
Measure the continuity (Forward).
(Ohm-meter scale: Rx1000)
Measure the continuity (Reverse).
(Ohm-meter scale: Rx1000)
– 37 –
RESULTS
CHASSIS
Fig. 25
Normal: Momentary indicates
several ohms, and
then gradually returns
to infinite.
Fig. 26
Normal: Infinite.
Fig. 27
Normal: Continuity.
Abnormal: Infinite.
Fig. 28
Normal: Infinite.
Abnormal: Continuity.
Fig. 29