User's Manual

The Video Display Does Not Appear
If the computer starts up but no image appears on the screen, follow
these steps to solve the problem:
1.
2.
3.
4.
Check to see that the power indicator on the video monitor is lit. If it is
not, turn off the monitor’s power, wait five seconds, then turn the power
back on. Wait to see if the display screen image appears.
Use the controls on the monitor to turn up the brightness and contrast.
Remove any diskettes, then turn off the power switches on the monitor
and the main unit. Check that the monitor’s power cable is securely
connected to the electrical outlet and that the monitor cable is properly
connected to both the monitor and the main unit. Turn both power
switches back on.
Turn off the power switches on both the main unit and the monitor.
Then check the electrical outlet for power. Plug a portable lamp into the
outlet you are using for the monitor and turn it on to see if the outlet
supplies power.
The Computer Locks Up or Freezes
If the computer locks up and does not respond to the keyboard, try the
following:
Wait a few seconds. Some operations take longer to perform than oth-
ers. For example, a spreadsheet program takes longer to recalculate an
entire spreadsheet than to record one figure. Also, BASIC programs
that have a lot of calculations to perform can take several minutes, or
even hours. Be aware of the task the computer is performing and judge
the time accordingly.
Check the key lock to see if it is locked. If it is, the computer does not
respond to anything you enter on the keyboard. Turn the key to the left
to unlock it.
If the computer remains locked up, follow the steps in Chapter 2 under
“Resetting the Computer.”
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