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afterdawn.com > forums > home theater > receivers and amplifiers > interlacing issues over s-video
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Interlacing Issues Over S-video
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fatejd
Newbie
_ 		5. June 2006 @ 07:23 _ Link to this message    Send private message to this user   
I have a home theater setup in this manner:

DVD Player, PS2, VCR, Computer (via VGA to S-video conversion box) all input into my Kenwood VR-3090 receiver. The video out goes to my Canon LV-S3 projector via S-video as well.

The problem I have is that I am seeing a lot of interlacing issues (especially on video from the VGA to S-video conversion box) that I did not used to see. I emailed the support for the conversion box and they said it might be a bent pin on my S-video cable. I read in another post that a bent pin caused the picture to be black and white, but nothing about interlacing (horizontal lines in quick movement on the video). Is this the probable problem?
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diabolos
Suspended due to non-functional email address
_ 		5. June 2006 @ 08:04 _ Link to this message    Send private message to this user   
Well it doesn't sound like interlacing issues if the same setup use to yeild desired results before. I would check all of my S-Video connections or bent pens.

I also recommend using Component Video if possible since the picture would be better and bent or broken pins is not an issue.

--After Research--

I strongly recommend using component video if the receiver can upconvert from S-Video and Composite video to Component Video.

Ced
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This message has been edited since posting. Last time this message was edited on 5. June 2006 @ 08:10
fatejd
Newbie
_ 		5. June 2006 @ 08:08 _ Link to this message    Send private message to this user   
Yeah, I figure I do need to check for bent pins then. Seems kind of weird how it would cause what I'm seeing because of what the pins each carry...

I can't use Component really or I would - receiver only does S-video and RCA...

Thanks for confirming my suspicions and I'll check my pins.
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This message has been edited since posting. Last time this message was edited on 5. June 2006 @ 08:09
diabolos
Suspended due to non-functional email address
_ 		5. June 2006 @ 10:23 _ Link to this message    Send private message to this user   
Quote:
Seems kind of weird how it would cause what I'm seeing because of what the pins each carry...
Well if the pins that carry the color signals are bent then the picture should be black and white. Im not sure what would happen if the pins carrying the Y info where bent.

Ced
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The_OGS
Senior Member
_ 		5. June 2006 @ 16:19 _ Link to this message    Send private message to this user   
Hi guys,
The S-video line between the Kenwood VR-3090 receiver and the Canon LV-S3 projector is obviously critical, everything must go through it.
But, the horizontal lines sound like RFI - do you get this mostly when playback is from PC? Too bad you didn't have a modern high-quality S-video PC output, almost all vidcards have 'em.
But you must trace the route from PC, through the conversion device, into the Kenwood. The device and/or connections may be ungrounded or improperly shielded against EMR and RFI, and the cabling less than perfect.
Use only top-quality shielded S-video cabling and be careful routing it away from any potential interference, including AC electric.
The signals are very low-level and delicate :^)
Good luck, hope this helps,
Regards
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fatejd
Newbie
_ 		5. June 2006 @ 17:27 _ Link to this message    Send private message to this user   
Well, none of the pins were bent at all. I'm starting to think my graphics card doesn't have the necessary power to output video to my project via the vga>svideo converter or something. Would that cause the horizontal lines in my video?
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