Inverter NN-T551CB, Руководство по обслуживанию

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Disconnecting the PCB lock connector.
8.3. Digital Programmer Circuit (DPC) and membrane key board.
NOTE: Ground any static electric built up on your body before handling the DPC.
1. Disconnect all connectors from the DPC.
2. Remove the two screws holding the escutcheon base and slide the escutcheon
base upward slightly. Removal is easier with the door open.
3. Release the ribbon cable.
4. Remove the six screws holding the DPC DU assembly.
5. Remove the door lever.
6. Remove the seven screws holding the DPC AU assembly.
To remove escutcheon pad.
1. Remove the escutcheon bracket from the escutcheon base by freeing the 4 catch
hooks on the escutcheon base.
2. Peel away the display window from the inside of the base.
3. Remove the membrane assembly by pushing from the inside of the base and then
peeling away from the outside surface.
NOTE:
1. The escutcheon 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 a new escutcheon key board, make sure that the surface of the
escutcheon base is cleared sufficiently so that problems such as, shorted contacts
and uneven surfaces can be avoided.
3. When replacing the stainless escutcheon asemmbly, (NN-V671SB), ensure that the
stainless facia is earthed to the escutcheon back plate via the earth spring.
Figure 4