LG MB-4322AH, Service Manual

Page: 16 / 40

K. TIMER MOTOR REMOVAL
1) Remove the control panel assembly from the
cavity.
2) Remove screws which hold the timer motor to the
control panel.
3) Remove the timer motor from the control panel.
4) Remove the power control knob and the timer
knob.
L. INTERLOCK SYSTEM
1) INTERLOCK MECHANISM
The door lock mechanism is a device which has
been specially designed to eliminate completely
microwave activity when the door is opened during
cooking and thus to prevent the danger resulting
from the microwave leakage.
2) MOUNTING OF THE PRIMARY/MONITOR/
SECONDARY SWITCHES TO THE LATCH BOARD
3) INSTALLATION AND ADJUSTMENT OF THE
LATCH BOARD TO THE OVEN ASSEMBLY
• Mount the latch board to the oven assembly.
• Adjust the latch board in the arrow direction so that
oven door will not have any play in it when the door
is closed.
• Tighten the mounting screw.
• Check for play in the door by pushing the door
release button. Door movement should be less
than 0.5 mm. (1/64 inch)
Don't push the door release button while making
adjustment. Make sure that the latch moves
smoothly after adjustment are completed and that
the screws are tight. Make sure the primary, monitor,
and secondary switches operate properly by
following the continuity test procedure.
5-6
Control Panel
Timer Motor
Power Control
Knob
Timer Knob
PRIMARY
SWITCH
SECONDARY
SWITCH
ADJUSTMENT
DIRECTION
MONITOR
SWITCH
CAUTION: CHECK THE CORRECT POSITION
MAGNETRON
H.V. TRANSFORMER
PRIMARY
CIRCUIT PROTECTOR
H.V. CAPACITOR
H.V.
DIODE
FIG. 1