LG MH-794GS Service Manual page 19

M. PCB ASSEMBLY REMOVAL
1) Remove the control panel assembly from the
cavity.(Refer to control panel assembly removal on
previous page.)
2) Remove screws which hold the PCB SUB ASS'Y to
the control panel.
3) Disconnect the flat cable from the PCB SUB ASS'Y
and take off the PCB SUB ASS'Y.
Control Panel
Knob
N. 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.
PCB SUB ASSY
Tact switch PCB
Dial
2) MOUNTING OF THE PRIMARY/MONITOR/
SECONDARY SWITCHS TO THE LATCH BOARD
ADJUSTMENT
DIRECTION
PRIMARY
SWITCH
MONITOR
SWITCH
SECONDARY
SWITCH
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 the
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 0.5mm. (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 switch operate properly by following the
continuity test procedure.
CAUTION: CHECK THE CORRECT POSITION
H. V. TRANSFORVER
PRIMARY
19
MAGNETRON
H. V
DIODE
H. V. CAPACITOR
CIRCUIT PROTECTOR