composite sync to YPbPr luminance sync?

[クリスチャン]

So I have this startech VGA to YPbPr transcoder (http://www.startech.com/AV/Converters/V ... r~VGA2CPNT)

Spoiler

I'm using it to convert my Dreamcast's VGA output to YPbPr. It works great on my recent Samsung plasma (minus some color bleeding) however, when I try to use it with my Sony 40W600B the screen flickers on and off repeatedly. I opened the transcoder and noticed the transcoder doesn't combine the H+V sync from VGA onto the luminance channel output and instead sends it through a XOR and NOT gate then out on it's own RCA jack (composite sync). I guess my Sony doesn't like YPbPr without luminance sync. I should add that my Sony doesn't display anything when using a higher res PC source with the transcoder but the Samsung does.

So I figured that I need a device that can convert a composite sync signal to a YPbPr luminance sync signal but I have no clue on where and what to get to do this. Any help would be greatly appreciated!

[Fudoh]

This doesn't make too much sense. If the Y channel wouldn't include the sync timings, you wouldn't get any picture - on ANY display. I assume the H/V output is strictly optional. I would try to add an Extron interface. It will process and pass your YUV signal as long as you select RGsB for output. Might help in stabilizing the picture.

[クリスチャン]

This doesn't make too much sense. If the Y channel wouldn't include the sync timings, you wouldn't get any picture - on ANY display. I assume the H/V output is strictly optional.

You know I thought the same thing at first. I guess I didn't look at the PCB carefully enough and think it through! So how would I use one of those extron interfaces, just by connecting DC VGA->transcoder->extron->display? Is there a specific extron model necessary?

[Fudoh]

just by connecting DC VGA->transcoder->extron->display?

yes, you just need the proper cables. All the Extrons have a VGA-style HD15 input and BNC outputs.

Is there a specific extron model necessary?

not really. I like the ones that offer a screen shift function. And stay away from the old ones that have a 9-pin DIN input instead.

[クリスチャン]

Amazing you're the best man! I have a D-SUB 15 to component RCA cable lying around so it sounds like I can just use that to connect the transcoder's RCA out to extron VGA in.