8.2. Digital programmer circuit (DPC) and membrane key board.
NOTE:
Before handing the DPC ensure that your body is connected to
ground to discharge any electric charge.
1. Disconnect all connectors from D.P.C.
2. Remove 1 screw holding escutcheon base and slide the
escutcheon base upward slightly.
3. Remove 1 screws holding DPC.
4. Separate D.P.C board from tabs on the escutcheon base and
remove D.P.C board.
5. Remove rubber connector.
6. Separate display holder from tabs on the escutcheon base and
remove display holder.
7. Remove display.
To replace membrane key board
8. 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
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Содержание NN-K153WF
Страница 3: ...3 ...
Страница 4: ...1 SCHEMATIC DIAGRAM NN K103WF 2 SCHEMATIC DIAGRAM NN K153WF NN K123MF 4 ...
Страница 16: ...16 ...
Страница 17: ...12 DIGITAL PROGRAMMER CIRCUIT NN K153WF K123MF PARTS LIST 17 ...
Страница 20: ...law 2 ...
Страница 21: ...3 ...
Страница 26: ...5 SCHEMATIC DIAGRAM NN K152WF 8 ...
Страница 44: ...find the exact cause of any trouble 11 1 Digital programmer circuit troubleshooting guide 26 ...
Страница 45: ...11 2 How to check the semiconductors using an OHM meter 12 EXPLODED VIEW AND PARTS LIST 27 ...
Страница 51: ...33 ...
Страница 52: ...19 DIGITAL PROGRAMMER CIRCUIT PARTS LIST 34 ...