Sony PVM - Genesis and RGB Issues

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suprmonky73
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Location: charlotte , nc

Sony PVM - Genesis and RGB Issues

Post by suprmonky73 »

Having some issues with my PVM and genesis set up and would really appreciate some input as to what might be going on or what I am not grasping.

First up, a list of the items in my setup:

1) Sony PVM-1953MD
2) two genesis model 2's
3) retrogamingcable's BNC RGB Breakout cable (the one with the sync stripper) breakout cable
4) retrogamingcable's genesis euro scart cable euro scart cable
5) I also picked up an ebay RGB female cable (no sync stripper) to see if it might help the issue ebay link
6) composite cables , which work fine on the PVM

Without rambling on - the retrogamingcable RGB cables almost work, the red does not show up in the picture, it's as if i don't even have it plugged in. Otherwise the clarity and picture is fine. Googled and googled and no idea what the issue is. the PVM-1953md has 2 rgb ports on it which you can see in the pictures listed as RGB A and RGB B and they both have the same issues.

Went out and got another genesis for cheap in case my original genesis might have an issue. This one came with composite cables and the composite picture looks fine, but I still have the no red issue on the RGB setup.

Grabbed a generic RGB BNC breakout off ebay, had a different issue, picture shows red but it's as if the white colors are really muted. I'll post a few pictures for detail. Hoping someone will be able to identify the issue since I am at a loss and am fairly new to this, all the research in the world was not able to help up to this point.

posting 5 pictures:
first is the composite picture, no issues
Image

Next up is the Retrogamingcable setup, note the lack of red colors
Image

Next is the ebay rgb breakout cable paired with the retrogamingcable euroscart av out cable. it seems darker/dimmer in person than the picture shows
Image

More detail on the color issue/lack of red with a different game and closer up
first is composite , 2nd is the retrogamingcable setup

Image
Image
Last edited by suprmonky73 on Fri Sep 13, 2013 3:25 pm, edited 1 time in total.
AppleQueso

Re: Sony PVM - Genesis and RGB Issues

Post by AppleQueso »

Sounds to me like the breakout cable from retrogamingcable just has a loose/broken connection on the red line.

Do you know how to solider? it should be an easy fix if so.
suprmonky73
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Posts: 24
Joined: Fri Sep 13, 2013 2:18 pm
Location: charlotte , nc

Re: Sony PVM - Genesis and RGB Issues

Post by suprmonky73 »

wow thanks for the quick reply

I don't know how but have been planning on getting a gun to fix a soldering issue on one of the genesis consoles. Also, i fidgeted with the cable a bit but don't wanna rip it apart to look at the inside, but worth a shot.

If you think it's an issue with the RGC cable I can email him and see what he thinks. There are several components at play : genesis, breakout cable, av cable, PVM etc so i didn't want to assume it was his cable.
AppleQueso

Re: Sony PVM - Genesis and RGB Issues

Post by AppleQueso »

SCART cables are really easy to take apart. Just unscrew that cap part where the cable comes out of the connector, and the connector shell itself just pops open. Easy to put back together too.

That's assuming you want to take a look at it yourself and all that of course. Just see if any cables aren't making a connection.
suprmonky73
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Posts: 24
Joined: Fri Sep 13, 2013 2:18 pm
Location: charlotte , nc

Re: Sony PVM - Genesis and RGB Issues

Post by suprmonky73 »

I stopped being a baby and gave a little more effort to take it apart...mostly just afraid to break something.

Got it apart and while i'm not entirely sure what to look for, i didn't see anything noticeable in terms of broken/missing connections between any of the cables. I checked both the BNC connector as well as the female scart end, both seem to be fine.

Again, thank you for your help with this!

Image



Image

Last edited by suprmonky73 on Fri Sep 13, 2013 4:13 pm, edited 1 time in total.
AppleQueso

Re: Sony PVM - Genesis and RGB Issues

Post by AppleQueso »

links appear to be broken
suprmonky73
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Posts: 24
Joined: Fri Sep 13, 2013 2:18 pm
Location: charlotte , nc

Re: Sony PVM - Genesis and RGB Issues

Post by suprmonky73 »

posted the actual links if that helps, i can see the pictures.
They are hosted on imgur, never used imgur before today so maybe i'm doing something wrong.
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bmoc
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Re: Sony PVM - Genesis and RGB Issues

Post by bmoc »

I can see the pictures fine. While I am no expert on the innards of SCART cables, I don't see anything blatantly broken or missing either.

I would think that it would be extremely unlikely that you got two busted breakout cables. I think the culprit may be the Genesis SCART cable. I'd check for bent pins on the Genesis end and broken connections on the male SCART end.
AppleQueso

Re: Sony PVM - Genesis and RGB Issues

Post by AppleQueso »

okay I can see them now...
bmoc wrote:I can see the pictures fine. While I am no expert on the innards of SCART cables, I don't see anything blatantly broken or missing either.

I would think that it would be extremely unlikely that you got two busted breakout cables. I think the culprit may be the Genesis SCART cable. I'd check for bent pins on the Genesis end and broken connections on the male SCART end.
I'd maybe agree if not for the fact that the two breakout cables are showing two different kinds of issues.

The generic one sounds like it might have a bit of a sync problem, maybe? It would make sense considering the retrogamingcable one has the sync stripper built in.

I'd try just reflowing the soldier on that red wire there on the female SCART connector. It's hard to tell whether there's anything wrong with that from the pics, but reflowing can't hurt. The red simply not making a connection is the only thing that'd explain there being no red in the image.
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bmoc
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Re: Sony PVM - Genesis and RGB Issues

Post by bmoc »

I don't think it is a sync problem on the ebay breakout cable. If that were the case, the image would be wobbly/distorted or have jailbars. I don't think sync issues typically include brightness level. I could be wrong though. I have been told that the medical PVMs are a bit more resistant to dirty sync signals. I can't confirm that though since all I have is a Sync Strike and VGA breakout cable to test with. I've been meaning to get a normal SCART to BNC breakout cable myself.

I'd agree that red isn't making a connection somewhere, be it in the breakout cable or the Genesis cable.
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