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All or some of the function keys do not respond
Possible causes:
1.
Keypad connecting
plug has been not
fit-in properly.
2.
Keypad is damaged.
3.
Upper board is
damaged.
Fix:
1.
Remove the console cover, and then check if
keypad cable is connected properly to the upper
board.
If it has not been connected well, reconnect it
to the terminal and check again.
.
2.
Keypad or upper board is damaged.
Replace the console
Summary of Contents for C7000
Page 1: ...C7000 Service Manual Revision 1 0 Date 2004 7 25 ...
Page 7: ...SECTION 2 EXPLODED DIAGRAM CONTENTS C7000 EXPLODED DIAGRAM ...
Page 8: ...C7000 EXPLODED DIAGRAM ...
Page 9: ...SECTION 3 WIRING DIAGRAM CONTENTS CONTROL BOARD WIRING DIAGRAM WIRING DIAGRAM ...
Page 11: ...WIRING DIAGRAM ...
Page 38: ...SECTION 6 MAINTENANCE PROCEDURE CONTENTS CLEANING THE GROOVES ...
Page 41: ...APPENDIX 1 WOODEN HAMMER 2 BEARING PULLER 3 C CLIP PLIERS 4 C CLIP PLIERS 1 2 3 4 ...