LG MD-2642KT Service Manual page 16

D. MAGNETRON REMOVAL
(Figure 10)
(1) Disconnect the wire lead from the magnetron.
(2) Carefully remove the mounting screws holding the
magnetron and the waveguide.
(3) Remove the magnetron assembly until the tube is
clear from the waveguide.
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 . (With a 275 ml. water load).
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.
Figures 10
Magnetron
Waveguide
Dome
Waveguide
Bracket
Magnetron
Gasket
Magnetron
E. REMOVING THE TURNTABLE
MOTOR (Figure 11)
1) Remove the turntable and rotating ring.
2) Lay the unit down on its back.
3) Remove the turntable motor cover.
The turntable base cover is easily removed by
pinching the eight parts with a wire cutting.
4) Disconnect the leadwire from the turntable motor
terminals.
5) Remove the screw securing the turntable motor to
the oven cavity ASSEMBLY.
6) After repairing the motor, rotate the removed
turntable motor cover.
7) Fit the turntable motor cover's projecting part to the
base plate slit.
NOTE:
1. Remove the wire lead from the turntable motor
VERY CAREFULLY.
2. Be sure to grasp the connector, not the wires, when
removing.
Turntable
Motor
5-6
Shaft
Wire Leads
Figures 11