LG SolarDOM MP-9485S Service Manual page 14

D. 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 assembly
to the PCB holder.
3) Remove the PCB holder & PCB bracket.
4) Remove screws which hold the control panel.
5) Disconnect the flat cable from the PCB sub
assembly and take off the PCB sub assembly.
E. DOOR GROSS ASSEMBLY REMOVAL
1) Disconnect the power cord.
2) Open the door from oven. insert "JIG " into the choke
cover hole of door.
3) Lift the door from front cavity.
NOTE:
1. After replacing the door, be sure to check that the
primary switch, monitor switch, and secondary switch
operate normally.
2. After replacing the door, check for microwave energy
leakage with a survey meter. Microwave energy must
be below the limit of 5 mW/cm
load)
3. When mounting the door assembly to the oven
assembly, be sure to adjust the door assembly parallel
to the chassis. Also adjust so the door has no play
between the inner door surface and oven frame
assembly. If the door assembly is not mounted
properly, microwaves may leak from the clearance
between the door and the oven.
2 . (with a 275 ml water
JIG
DOOR JIG P/No.
383EW5A224A
F. BRACKET ASSEMBLY REMOVAL
1) Remove screws on the bracket assembly and release
a lug.
2) Disconnect the leadwire from thermostat and lift out
the bracket assembly.
G. MAGNETRON REMOVAL
1) Remove controller assembly and bracket assembly.
2) Disconnect the leadwire from the high voltage
transformer and Magnetron.
3) Carefully remove the mounting screws holding the
magnetron and the wave guide.
4) Remove the magnetron until its dome is clear from
the wave guide.
NOTE:
1. When removing the magnetron, make sure its
dome does not hit any adjacent parts, or it may be
damaged.
2. When replacing the magnetron, be sure to install
the magnetron gasket in the correct position and
be sure that the gasket is in good condition.
3. After replacing the magnetron, check for microwave
leakage with a survey meter around the
magnetron. Microwave energy must be below the
limit of 5 mW/cm 2
Make sure that gasket is rigidly attached to the
magnetron. To prevent microwave leakage,
tighten the mounting screws properly, making sure
there is no gap between the waveguide and the
magnetron.
Bracket
5-4
Please use the JIG
(P/No. 383EW5A224A)
below for door removal.
30mm
18mm
7mm
5mm
. (With a 275 ml. water load).
Magnetron