NEC POWERMATE ES 5200 - SERVICE, Руководство по обслуживанию

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8-4 Troubleshooting
Monitor Problems
Check the following problems to see the possible cause and solution.
„
Monitor screen is dark or the display is hard to read.
Check that the monitor is on.
Check that the monitor power cable is connected to the monitor and a
power outlet, the monitor signal cable is connected to the system, and the
brightness and contrast controls are adjusted.
Press the space bar or move the mouse to take the system out of the
power management mode.
„
Distorted image appears on the monitor screen.
Adjust the monitor’s video controls. If this does not help, turn the
monitor off for several seconds, then back on.
„
There is constant movement on the screen.
A magnetic field is affecting the monitor. Move any devices (fan, motor,
another monitor) that generate magnetic fields away from the monitor.
„
The screen display is fuzzy or flickering; graphics characters or
garbage appears on the screen.
Check that the monitor is set up correctly and that all connections have
been made.
Check that the video refresh rate and video driver are correct.
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 may 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.
If this does not help, turn off the system, wait five or more seconds, and
turn on the system.