LG LMVH1750SB Service Manual page 19

D. REMOVING MAGNETRON
(Figures 11 Through 13b)
(1) Remove the vent grille by loosening two screws.
(Figure 11)
(2) Remove the outside case. See page 7-6.
(3) Remove four tap tite screws securing the
magnetron to the wave guide.
(4) Disconnect the leadwire.
(5) Remove the magnetron VERY CAREFULLY.
Figure 13-a
Figure 11
Door
Vent Grille
NOTES:
• When removing the magnetron, make sure that its
dome does not hit any adjacent parts, or it may be
damaged.
• 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.
• After replacing the magnetron, check for microwave
energy leakage with a survey meter Check
microwave energy leakage must be below the limit
of 5 mW/cm 2 . (All service adjustments should be
made for minimum microwave energy leakage
readings.)
Controller
Figure 13-b
7-8
Mount,All
(1 or 2 screws)
Mounting
Plate
Out Case
(3 screws)
Figure 12