9.1. Magnetron
1. Discharge the high voltage capacitor.
2. Disconnect 2 connectors from fan motor B.
3. Remove 4 screws holing fan motor B (U) assembly.
4. Remove 3 screws which holding exhaust guide (U) onto
oven.
5. Tilt exhaust guide (U).
6. Remove 1 screw holding air guide A and then remove air
guide A.
7. Remove 2 high voltage lead wires from magnetron filament
terminal.
8. Remove 4 screws holding magnetron.
NOTE:
After
replacing
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.
9.2. Digital programmer circuit
(DPC) and membrane key
board.
NOTE:
Be sure to ground any static electric charge built up on
your body before handling the DPC.
1. Disconnect all connectors from D.P.C.
2. Remove 2 screws holding escutcheon base and slide the
escutcheon base upward slightly.
3. Release CN6 connector´s lock of D.P.C by pushing both
levels to inside and pull them upward, and remove flat cable
of membrane keyboard.
4. Remove 3 screws holding D.P.C.
To replace membrane key board
5. 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 is as
follows;
Membrane key board: Right and upper edges
Escutcheon sheet: Right and upper edges
9 DISASSEMBLY AND PARTS REPLACEMENT
PROCEDURE
14
NN-S262SF / NN-S262BF / NN-S262WF / NN-S252BF / NN-S252WF
Содержание NNS252BF - MICROWAVE OVEN/OTR
Страница 2: ...2 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 3: ...3 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 6: ...3 CONTROL PANEL CPH 6 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 9: ...5 SCHEMATIC DIAGRAM APH 9 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 10: ...6 SCHEMATIC DIAGRAM CPH 10 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 26: ...13 3 How to check the semiconductors using an OHM meter 26 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 27: ...14 EXPLODED VIEW AND PARTS LIST 27 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 33: ...20 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 33 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
Страница 34: ...34 NN S262SF NN S262BF NN S262WF NN S252BF NN S252WF ...
