Planar SD2420W manual Troubleshooting, Problem Possible Solution

Troubleshooting

Problem	Possible Solution
No image appears	• Check that all the power cord connections are secure.
on the screen.	• Check that the power buttons on the side and front of
	both monitors are switched on and that the power
	indicator light is green.
	• Check that the DVI cables are securely fastened to the
	graphics card, the mirror-flip PCI card, and the two
	monitors.
	• Make sure that the pins of the DVI connectors are not
	bent or broken.
	• If only the bottom monitor appears to be working, make
	sure the graphics card is not in the single-monitor mode.
Partial image	• Check to see if the resolution of the computer/graphics
or incorrectly	card is higher than that of the LCD panels (1920 x 1200).
displayed image.	• Check to see that the output timing of the video signals
	is within the synchronous range of the LCD panels
	(horizontal: 30 – 94 kHz; vertical: 56 – 75 Hz). The “Input
	Not Supported” message appears on the screen if the
	timing is not supported by the LCD panel.
Both displays work	Be certain the graphics card is properly set up for the dual-
but there is no	monitor stereo mode. If you are using a professional
stereo functionality.	application, make sure that OpenGL settings are enabled.
	Refer to the owner’s manual for the graphics card.
The stereoscopic	Be certain the video cable to the bottom display is the left
image appears to	channel and the cable to the top display is the right channel.
be inverted.	Also make sure that the image sent to the top monitor is
	mirror-flipped either by software or the mirror-flip PCI card.
Only one display is	Be certain that your graphics card is configured for two
showing an image.	monitors. Use clone mode, horizontal span (also called
	stretch mode), or dual-monitor mode configuration. Be
	sure that all video cables are securely connected.

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