IBM 220 manual Troubleshooting charts, Device, Suggested action, Monitor problems

Device		Suggested action
Monitor problems	Verify that:
	1.	The server power cord is plugged into the server and a working electrical outlet.
The screen is blank.
	2.	The monitor cables are connected properly.
	3.	The monitor is turned on and the Brightness and Contrast controls are adjusted
		correctly.
	If the items above are correct and the screen remains blank, call for service.
	Attention: In some memory configurations, the 3-3-3 beep code might sound during
	POST followed by a blank screen. If this occurs and the Boot Fail Count feature in the
	Start Options of the Configuration/Setup Utility is set to Enabled (its default setting),
	you must restart the server three times to force the system BIOS code to reset the
	memory connector or bank of connectors from Disabled to Enabled.
Only the cursor appears.	Call for service.
The monitor works when you	Verify that:
turn on the server, but goes	1.	The primary monitor cable is connected to the video port.
blank when you start some
	2.	You installed the necessary device drivers for the applications.
application programs.
	If the items above are correct and the screen remains blank, call for service.
Wavy, unreadable, rolling,	Some IBM monitors have their own self-tests. If you suspect a problem with your
distorted screen, or screen jitter.	monitor, refer to the information that comes with the monitor for adjusting and
	testing instructions.
	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.) Then move the
	device and the monitor at least 305 mm (12 in.) apart. Turn on the monitor.
	Notes:
	1.	To prevent diskette drive read/write errors, be sure that the distance between
		monitors and diskette drives is at least 76 mm (3 in.).
	2.	Non-IBM monitor cables might cause unpredictable problems.
	3.	An enhanced monitor cable with additional shielding is available for the 9521
		and 9527 monitors. For information about the enhanced monitor cable, see your
		IBM reseller or IBM marketing representative.
	If the problem remains, call for service.
Wrong characters appear on the	If the wrong language is displayed, update the BIOS code with the correct language.
screen.	If the problem remains, call for service.

Table 16. Troubleshooting charts

Chapter 6. Solving problems 103