Epson 3865X Plus - Manual (Page 274)

Keyboard Problems
If you are having trouble with the keyboard, check the
following:
1. If the screen displays one of the following keyboard errors
when you turn on or reset the computer, make sure the
keyboard is securely connected to the computer:
301 KEYBOARD ERROR
303 KEYBOARD OR SYSTEM UNIT ERROR
304 KEYBOARD OR SYSTEM UNIT ERROR
See ‘Connecting the Keyboard” in Chapter 1 for
instructions.
2. If the cursor keys do not work properly, the Num Lock
function may be on. When Num Lock is on, the numeric/
arrow keys on the numeric keypad work only as numbers.
Check to see if the Num Lock indicator in the upper right
corner of the keyboard is lit; if it is, press the Num Lock key
to turn off the function.
If you want to change the initial setting of the Num Lock
function when you turn on the computer, see “Using the
Speaker and Keyboard Options” in Chapter 2.
3. If nothing happens when you type on the keyboard, see
“The Computer Does Not Respond,” above.
Troubleshooting
D-13