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Video Card Refreshment

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5 replies

by arichart

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I have a video card hooked up to my TV via the component (yellow) out through my VCR. I can see the desktop, but it is "running" vertically and will not stop. I have changed the refresh rate as far down as it will go, which is around 43Hz and the scrolling slowed, but will not stop. Is there some setting that I am missing that is crucial? I am running XP Professional and the card is a VGA ATI OEM|RADEON 7000 64M DDR AGP. Any help would be appreciated.

5 replies

by thechas

The video frame rate for US TV's is just over 30 Hz.

However, the electronics for the TV out signal on the video card should take care of that.

My suspicion is that the video card is not sending the vertical sync pulse on the TV out line.

Agood TV technician should be able to verify this.
You need an oscilloscope with TV pulse triggering to view the signal.

The fix may be as simple as not having the correct driver.
The biggest problem I have had with ATI cards is identifying the correct driver.
Make sure that the driver specifies TV support.

It is also possible that you need a new version of the video card BIOS.

Chas

by arichart

Thanks to everyone who answered, all I had to do was to uninstall the software and then reinstall with the tv hooked up to the video card instead of the monitor.

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