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Troubleshooting
This section provides troubleshooting information for each function. Consult this section
as required. For troubleshooting information for Windows NT, refer to the Windows NT
manual or the online help registered on the Start menu.
Troubleshooting information on the computer main unit
and peripheral units
● The access lamp does not light up.
The PC may be faulty. Contact a dealer or the your local distributor.
- No data is displayed on the screen.
Confirm the following:
- Is the Power switch on the display turned on?
- Is the power savings mode selected?
Move the mouse or press any key.
- Is the display cable connected correctly? See “2 Connection” in Chapter 1, “Installation”
to connect the display cable correctly.
- Is the power cable of the display unit connected to the outlet? See “2 Connection” in
Chapter 1, “Installation” to connect the power cable correctly.
● Before connecting cables, turn off the power to prevent electric shock.
- Are the brightness and contact variable resistors on the display unit adjusted correctly?
Adjust the screen image using the brightness and contact variable resistors.
● The screen flickers.
Is there any strong magnetic field in the vicinity of the computer, such as a TV set? If so,
keep away from the PC.
● The screen sides are cut.
Adjust the horizontal screen size using the adjustment controls on the display unit.
● Data cannot be read from or written to floppy disks.
Check the following:
- Is the floppy disk drive head dirty? Clean the head using a cleaning disk. (See “Cleaning
the floppy disk drive” in Appendix 4, “Maintenance.”)
- Is the floppy disk write-protected? Move the write-protect tab on the floppy disk to a the
write-enabled position.
WARNING