Epson ActionDesk 4000 User Manual - Page 107

Keyboard Problems, Monitor Problems, message, keypad, There, no display on the, The power light is

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Your computer sudden/y stops operating. You may have overloaded the power supply limitations. See your option card manual(s) for the power requirements for your option card(s). Then check Appendix A to see if you have exceeded the option slot power limits. Keyboard Problems The screen displays a keyboard error message when you turn on of reset the computer. Make sure the keyboard is securely connected to the correct port. Nothing happens when you type on the keyboard. See "The Computer Does Not Respond," above. The cursor keys on the numeric keypad do not work properly. If the Num Lock light in the upper right corner of the keyboard is lit, press NumLock to turn off the function. Monitor Problems There is no display on the screen. Check that the monitor's power switch is on and that its power light is on. The power light is on, but you still do not see anything on the screen. Check the brightness and contrast controls. Troubleshooting 7-5

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Your computer sudden/y stops operating.
You may have overloaded the power supply limitations. See
your option card manual(s) for the power requirements for
your option card(s). Then check Appendix A to see if you have
exceeded the option slot power limits.
Keyboard Problems
The screen displays a keyboard error
message
when you
turn on of reset the computer.
Make sure the keyboard is securely connected to the correct
port.
Nothing
happens
when you type on
the
keyboard.
See “The Computer Does Not Respond,” above.
The cursor keys on the numeric
keypad
do not work
properly.
If the Num Lock light in the upper right corner of the keyboard
is lit, press
NumLock
to turn off the function.
Monitor Problems
There
is
no display on the
screen.
Check that the monitor’s power switch is on and that its power
light is on.
The power light is
on, but you
still
do not
see anything
on
the
screen.
Check the brightness and contrast controls.
Troubleshooting
7-5