6.1. Magnetron
1. Discharge the high voltage capacitor.
2. Remove 1 screw holding supporter on the magnetron.
3. Remove 1 screw holding air guide A on cavity top plate.
4. Remove 1 screw holding air guide A on the wave guide,
then remove the air guide A.
5. Remove 2 screws holding the magnetron.
NOTE:
After replacement of the magnetron,tighten mounting
screws properly, making sure there is no gap between
the
waveguide
and
the
magnetron
to
prevent
microwave leakage.
CAUTION
When replacing the magnetron, be sure the antenna gasket is in
place.
CAUTION
When connecting 2 filament lead wires to the magnetron terminals,
be sure to connect the lead wires in the correct position. The lead wire
of high volatge transformer should be connected to “FA terminal” and
the lead wire from high voltage capacitor should be connected to “F
terminal”.
6.2. Digital programmer circuit
(D.P.C) & Membrane switch
(NN-ST340M/W)
NOTE:
Be sure to ground any static electric charge built up on
your body before handling the D.P.C.
1. Remove 1 screw holding escutcheon base on cavity front
plate.
2. Disconnect all connectors from D.P.C. board.
3. Disconnect red case connector from secondary latch
switch.
4. Remove 5 screws holding D.P.C. board on escutcheon
base.
6 DISASSEMBLY AND PARTS REPLACEMENT
PROCEDURE
10
NN-ST340M / NN-ST340W / NN-SM330M / NN-SM330W / NN-SM320M
Summary of Contents for NN-SM330M
Page 2: ...2 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
Page 5: ...2 2 NN SM330M SM330W SM320M 5 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
Page 6: ...3 SCHEMATIC DIAGRAM 3 1 NN ST340M ST340W 6 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
Page 7: ...3 2 NN SM330M SM330W SM320M 7 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
Page 19: ...19 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
Page 31: ...31 NN ST340M NN ST340W NN SM330M NN SM330W NN SM320M ...
