Epson 386SX - Manual (Page 176)

Keyboard Problems
If you are having trouble with the keyboard, check the
following:
1. If the screen displays a keyboard error when you turn on or
reset the computer, make sure the keyboard is securely
connected to the computer. See “Connecting the
Keyboard” in Chapter 1 for instructions.
2. If nothing happens when you type on the keyboard, see
“The Computer Locks Up,” earlier in this appendix.
3. 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.
Monitor Problems
For monitor problems, check the following:
1. If there is no display on the screen, check that the monitor’s
power switch is on and that the power light on the monitor
is lit. If the power light is on but you still do not see
anything on the screen, check the monitor’s brightness and
contrast controls.
2. If the power switch is on but the power light is not, turn off
the monitor’s power, wait five seconds, and turn the power
back on. Wait a few seconds to see if the screen displays any
text.
A-8 Troubleshooting