IBM 6587 - PC 350 - 16 MB RAM, User Manual

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Monitor Problems Action
Wavy, unreadable,
rolling, distorted
screen, or screen jitter. If the monitor self-tests show the monitor is OK, consider the location of the monitor. Magnetic fields
around other devices (such as transformers, appliances, fluorescent lights, and other monitors) can cause
screen jitter or wavy, unreadable, rolling, or distorted screen images. If this happens, turn off the monitor.
(Moving a color monitor while it is turned on might cause screen discoloration.) Adjust the locations of the
device and the monitor so that they are at least 305 mm (12 in.) apart. Turn the monitor on.
Notes:
1. The distance between monitors and diskette drives should be at least 76 mm (3 in.) to prevent diskette
drive read/write errors.
2. Non-IBM monitor cables might cause unpredictable problems.
3. An enhanced monitor cable with additional shielding is available for Model 9521 and 9527 displays.
See your IBM reseller or IBM marketing representative for information about the enhanced monitor
cable.
If the problem recurs, have the monitor and computer serviced.
Screen flickers. Set the monitor for the highest, noninterlaced refresh rate available.
To reset the refresh rate, use a utility program such as the IBM Personal Computer Configuration/Setup
Utility program. For OS/2, use Set Up Display in Easy Tools for OS/2.
See “Monitors” in Understanding Your Personal Computer for more information about monitors.
The monitor works
when you turn on the
system, but goes
blank when you start
some application
programs. Verify that the primary monitor cable is connected to the video port.
To find the video port, see Setting Up Your Personal Computer.
Be sure you installed the necessary device drivers for the applications.
Blank screen Verify that:
1. The computer power cord is plugged into the computer and 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 connected to the correct connector on the computer.
If the items above are correct and the screen remains blank, have the computer serviced.
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Using Your Personal Computer