LG MH-1355M Service Manual page 38

COMPONENTS
OVEN LAMP SWITCH
(Wire leads removed.)
FAN MOTOR
(Wire leads removed.)
TURNTABLE
MOTOR
(Wire leads removed.)
CIRCULATION MOTOR
(Wire leads removed.)
TEST PROCEDURE
Check for continuity of the switch
with an Ohm-meter
NC
NO
COM
NC
NO
COM
NOTE: After checking for the continuity of switches, make sure that they are
correctly connected.
Measure the resistance.
(Ohm-meter scale: Rx1)
Measure the resistance.
(Ohm-meter scale: Rx1000)
Measure the resistance.
(Ohm-meter scale: Rx1)
– 38 –
RESULTS
Door
open
Normal: Approx. 51 ohm.
Abnormal: Infinite or Several
ohms.
Fig. 30
Normal: Approx. 2800 ohm.
Abnormal: Infinite or Several
ohms.
Fig. 31
Normal: Approx. 26 ohm.
Abnormal: Infinite or Several
ohms.
Fig. 32
Door
close