Keyboard Problems; No Keyboard Response - Epson NX Service Manual

Keyboard Problems

If there is a problem with the computer's keyboard, see the suggestions below:

No Keyboard Response

If the computer boots properly but does not respond when you type, follow these suggestions:
1
Make sure the keyboard cable is securely connected to the keyboard port and not the
mouse port.
2 Check the keyboard cable connector for any bent or missing pins. If necessary, repair
the connector or replace the cable.
3 Replace the keyboard unit. The internal circuit board may be faulty.
4
Replace the keyboard controller. The controller may be faulty.
5 Check the continuity of fuse Fl (1A @ 125V) on the system board and replace it if
blown.
6 Replace the system board.
Figure 2-2 Keyboard Problems
Troubleshooting
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