Epson Apex, User Manual

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If the display doesn’t appear on the screen, use the
controls on the monitor to adjust the brightness and
contrast of the display.
Check DIP switches 3 and 4 on the back panel of the main
unit to make sure they are set correctly for your video card.
If you need to adjust a DIP switch, turn off your computer,
make the adjustment, and then turn on the power.
Remove any diskettes you have in your disk drives, then
turn off the computer. Check to see that the monitor’s
power cord is securely connected to its power outlet, and
that the monitor cable is properly connected to both the
monitor and the correct option slot on the back panel.
Then turn both power switches back on.
Finally, you can check the electrical outlet for power. Turn
off your monitor. Then plug a portable lamp into the
monitor’s outlet, and turn it on to see if it supplies power.
The Computer Locks Up
If the computer “locks up” and does not respond to the key-
board, try the following:
1. Wait a few seconds. Remember that some operations take
longer to perform than others, and your computer may still
be performing an internal function. For example; a spread-
sheet program takes quite a bit longer to recalculate an
entire spreadsheet than to record one figure. Also,
GW-BASIC programs with many calculations to perform
can take several minutes, or even hours to complete. Be
aware of the task the computer is performing and judge the
time accordingly.
Troubleshooting 5-3