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Runco IDP-852 RGB Help

post #1 of 6
Thread Starter 
Hello,
I am new to the forum, but I have a question that after searching I still couldn't answer, so here goes...

I have a Runco IDP-852 CRT projector that has always been hooked up via S-video. Well I got the crazy idea that I wanted to run 16:9 and a better picture so I tried to hook up my old bluray player to it. On the back of the projector I have RGB HS VS (Horizontal and Vertical Sync). I tried going from the Ypbpr to the RGB and the picture is great except for the dreaded green tint that overpowers the picture. I bought BNC connectors to RCA and use monster cables to to run from RGB to the Ypbpr, I have changed out the cables, tried different connectors and still cannot get rid of the green. I tried a different bluray player (both were Samsung), turning colors up and down, no luck. I connected to the projector VGA to RGBHV cable and the projector worked fine, but I don't want to leave a laptop hooked up to it. If I look at the front, it looks like green is very well lit, but the red and blue are not. I would assume that one of the red or blue is loose, but they are not. Does this have something to do with Sync on Green that I have been reading about or am I forgetting a setting?

Any thoughts?
post #2 of 6
Wow, I used to answer this question every day about 10 years ago, literally 20 times a day, but not recently. Component signal is NOT RGB! The colors match, but the signals don't.

Here's more on that:

http://www.curtpalme.com/CRTPrimer_17.shtm

You need either a transcoder or an HDMI to RGBHV converter (Moome box).

You'll also need to do a full realignment of the convergence. Hopefully you know how to do that, as the Zeniths are a PITA to set up.
post #3 of 6
BTW, the HD signal will blow away your Svideo connection image by far...well worth doing.
post #4 of 6
Thread Starter 
I didn't think RGB was Component, but when I hooked it up, I could project the HD picture, but had the green tint. When I went to the place that installed in, they weren't sure so they called Runco and I was told that they no longer support that projector. I currently have it hooked up through an older Dennon avs3300 which doesn't support HDMI, so I would prefer to stick with component. I assumed that it would need some sort of converter because I believe Component is digital and RGB is analog? Thanks for the responses, I was just slightly confused when it projected an HD quality picture, by connecting RGB to Ypbpr.
post #5 of 6
Thread Starter 
Sorry for the double post....

Would something like this work?

amazon.com/SPDIF-Component-Ypbpr-Converter-v1-3b/dp/B003LLXFSE/ref=sr_1_45?ie=UTF8&qid=1330019502&sr=8-45

I realize it probably isn't as good as the transcoder posted above, but this system is almost never used (I think it has 900 hours on it and it is a model year 98) and don't really want to spend that much more money on it. This way I could go HDMI in from bluray/ps3, and output the VGA to RGBHV.
post #6 of 6
No, it's not HDCP compliant. You need this:

http://moomecrtpj.blogspot.com/
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