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
9.3. Low voltage transformer and/or power relays (RY1, RY2)
NOTE:
Be sure to ground any static electric charge built up on your body
21
Summary of Contents for NN-P295
Page 3: ...3 ...
Page 4: ...4 ...
Page 5: ...5 ...
Page 6: ...1 SCHEMATIC DIAGRAM 1 1 APH NN P295 H275 1 2 APH NN S255 6 ...
Page 7: ...1 3 APH NN H264 FR S254 FR 7 ...
Page 8: ...1 4 CPH NN P295 H275 8 ...
Page 9: ...1 5 CPH NN S255 S245 9 ...
Page 10: ...2 MEASUREMENTS AND ADJUSTMENTS 10 ...
Page 19: ...40 F607V6Z00AP LAMP COVER U 1 19 ...
Page 30: ...30 ...
Page 31: ...7 2 NN H275 APH CPH NN S255 APH CPH 31 ...
Page 32: ...32 ...
Page 33: ...7 3 NN S245 CPH H264 FR APH S254 FR APH 33 ...
Page 34: ...34 ...
Page 35: ...7 4 PARTS LIST 7 4 1 NN P295 APH CPH S255 APH CPH 35 ...
Page 44: ...reserved Unauthorized copying and distribution is a violation of law 2 ...
Page 45: ...3 ...
Page 46: ...4 ...
Page 47: ...5 ...
Page 49: ...3 CONTROL PANEL CPH 7 ...
Page 50: ...4 OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE 4 1 To set clock 8 ...
Page 55: ...6 SCHEMATIC DIAGRAM CPH 13 ...
Page 76: ...13 TROUBLESHOOTING GUIDE 34 ...
Page 81: ...13 3 How to check the semiconductors using an OHM meter 14 EXPLODED VIEW AND PARTS LIST 39 ...
Page 89: ...20 DIGITAL PROGRAMMER CIRCUIT SCHEMATIC DIAGRAM 47 ...