IBM PC 300PL Types 6862, User Manual

Page: 132 / 190

Monitor problems Action
Screen flickers. Set the monitor for the highest, noninterlaced refresh
rate supported by your monitor and the video
controller in your computer.
Attention:
Using a resolution or refresh rate that is
not supported by your monitor might damage it.
You can reset the refresh rate through your operating
system, following the instructions provided in the
README files. See your operating system
documentation for further information on monitor
settings.
If this does not correct the problem, have the monitor
and computer serviced.
The monitor works when
you turn on the system,
but goes blank when you
start some application
programs. Verify that:
1. The monitor signal cable is securely connected to
the monitor and to the monitor connector on the
graphics adapter. For the location of the monitor
connector on the graphics adapter installed in your
computer, see “Desktop model connections” on
page 12 or “Tower model connections” on
page 13.
2. The necessary device drivers for the application
programs are installed.
If you cannot correct the problem, have the computer
serviced.
The monitor works when
you turn on the system,
but goes blank after
some period of computer
inactivity. The computer is probably set for energy savings using
one of the power management settings. If the power
management features are enabled, disabling or
changing the settings might solve the problem (see
“Power management features” on page 52).
If you cannot correct the problem, have the computer
serviced.
Blank screen. Verify that:
1. The monitor power cord is plugged into a working
electrical outlet.
2. The monitor is turned on and the Brightness and
Contrast controls are adjusted correctly.
3. The monitor signal cable is securely connected to
the monitor and the monitor connector on the
system board. To find the monitor connector on
the system board, see “Desktop model
connections” on page 12 or “Tower model
connections” on page 13.
If you cannot correct the problem, have the computer
serviced.
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PC 300PL and PC 300GL User Guide