NEC PowerMate 2000 Series, Service And Reference Manual, Page: 116 / 175

7-4 Troubleshooting
Check that the diskette size is 1.44 MB.
If the diskette drive busy lamp does not light when loading the diskette,
try a different diskette. If this loads, the problem is in the software.
!
Non-System Disk or Disk Error message displayed.
If trying to boot from the diskette drive, insert a diskette with system files
into drive A.
If a bootable diskette does not boot, use the Setup utility to verify that the
initial boot parameter is set to diskette drive A and not a hard drive.
LCD Panel Problems
Check the following problems to see the possible cause and solution.
!
LCD panel screen is dark or the display is hard to read.
Press the space bar or move the mouse to take the system out of the
power management mode.
Check that system power is on.
Check that the LCD panel brightness controls are correctly adjusted.
Check that the AC adapter and power cable are connected together, the
adapter is plugged into the back of the system unit, and the power cable is
plugged into a live power source.
!
The screen display is fuzzy or flickering; graphics characters or
garbage appears on the screen.
Check that all connections have been made.
Check that the video refresh rate and video driver are correct.
Check display properties. Click the right mouse button anywhere on the
Windows desktop and a menu appears. Click
Properties and the Display
Properties window appears.
Keyboard/Mouse Problems
Check the following problem to see the possible cause and solution.
!
Mouse or keyboard does not respond.
The mouse and keyboard might have been connected after turning on the
system. Turn the system off, make sure the mouse and keyboard are
connected, and turn the system back on.
!
Image appears on screen but nothing happens when using the
mouse or keyboard.
Make sure the keyboard or mouse cable is firmly connected to the rear of
the system.