6.1. Magnetron
1. Discharge the high voltage capacitor.
2. Remove 2 screws holding magnetron thermal cutout.
3. Remove 1 screw holding air guide A.
4. Disconnect 2 high voltage lead wires from magnetron
filament terminals.
5. Remove 4 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 voltage transformer should be connected to "F terminal" and
the lead wire from high voltage capacitor should be connected to "FA
terminal".
6.2. Digital Programmer Circuit
(D.P.C.) and membrane
keyboard. (NE-1037)
NOTE:
Be sure to ground any static electric charge built up on
your body before handling the D.P.C.
1. Disconnect all connectors from D.P.C.
2. Remove 2 screws holding escutcheon base and slide the
escutcheon base upward slightly.
3. Release flat cable connector´s lock of D.P.C. by pushing
both levers to inside and pull them upward, and remove flat
cable of membrane key board.
4. Remove 3 screws holding D.P.C.
To replace membrane key board
5. Remove escutcheon bracket from escutcheon base by
freeing 4 catch hooks on the escutcheon base.
6. Remove metal trim from escutcheon base.
7. Peel off the tab of membrane key board from escutcheon
base.
8. Peel off the display filter from escutcheon base.
9. Push the upper part of key board (display window portion)
from back of escutcheon base and peel off escutcheon
sheet and membrane key board completely from
escutcheon base.
NOTE:
1. The membrane key board is attached to the
escutcheon base with double faced adhesive tape.
Therefore, applying hot air such as using a hair dryer is
recommended for smoother removal.
2. When installing new membrane key board, make
sure that the surface of escutcheon base is cleaned
sufficiently so that any problems (shorted contacts or
uneven surface) can be avoided.
3. Alignment position of membrane key board;
Membrane key board: Right and upper edges
Escutcheon sheet: Right and upper edges
6 DISASSEMBLY AND PARTS REPLACEMENT
PROCEDURE
14
NE-1027 / NE-1037
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