Sony Color Graphic Display Trouble symptoms and remedies, Symptom, No picture, Picture is fuzzy, Check these items, Picture flickers, bounces, oscillates, or is scrambled

Trouble symptoms and remedies

If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction manual. Use the self-diagnosis function (page 18) if the following recommendations do not resolve the problem.

Symptom	Check these items
No picture
If the 1 (power) indicator is not lit	•	Check that the power cord is properly connected.
	•	Check that the 1 (power) switch is in the “on” position.

If the NO INPUT SIGNAL message appears on the screen, or if the 1 (power) indicator is either orange or alternating between green and orange

•Check that the tswitch setting is correct (page 7).

•Check that the HD15 video input connector’s pins are not bent or pushed in.

xProblems caused by the connected computer or other equipment

•The computer is in power saving mode. Try pressing any key on the computer keyboard.

•Check that the computer’s power is “on.”

•Check that the graphic board is completely seated in the proper bus slot.

	If the NO INPUT SIGNAL and	• Check that the video signal cable is properly connected and all plugs are firmly seated in
	CHECK SIGNAL CABLE message	their sockets (page 6).
	appear on the screen, or if the 1	• Check that the HD15 video input connector’s pins are not bent or pushed in.
	(power) indicator is either orange or	• Check that the tswitch setting is correct (page 7).
	alternating between green and	xProblems caused by the connected computer or other equipment
	orange
		• Check that the graphic board is completely seated in the proper bus slot.
	If the OUT OF SCAN RANGE	xProblems caused by the connected computer or other equipment
	message appears on the screen	• Check that the video frequency range is within that specified for the monitor. If you
		replaced an old monitor with this monitor, reconnect the old monitor and adjust the
		frequency range to the following.
		Horizontal: 30 – 121 kHz
		Vertical: 48 – 160 Hz
	If no message is displayed and the 1	• Use the Self-diagnosis function (page 18).
	(power) indicator is green or flashing
	orange
Picture flickers, bounces,		• Isolate and eliminate any potential sources of electric or magnetic fields such as other
oscillates, or is scrambled		monitors, laser printers, electric fans, fluorescent lighting, or televisions.
		• Move the monitor away from power lines or place a magnetic shield near the monitor.
		• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
		• Try turning the monitor 90° to the left or right.

xProblems caused by the connected computer or other equipment

•Check your graphics board manual for the proper monitor setting.

•Confirm that the graphics mode and the frequency of the input signal are supported by this monitor. Even if the frequency is within the proper range, some video boards may have a sync pulse that is too narrow for the monitor to sync correctly.

•Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.

Picture is fuzzy	•	Adjust the brightness and contrast (page 9).
	• Degauss the monitor* (page 13).
	•	If CANCEL MOIRE is ON, the picture may become fuzzy. Decrease the moire
		cancellation effect or set CANCEL MOIRE to OFF (page 11).

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