Borti SNES 1-chip RGB amp, picture stuck with yellow tint.

[TooBeaucoup]

Hey, folks. I've done quite a few mods, but not sure where I'm going wrong here. I have a 1-chip 01. I bought a basic Borti 1-chip bypass board from a seller on Ebay with good feedback who sells a bunch of them, along with a bunch of other modding stuff. I'm pretty sure I wired everything correctly, but I have a yellow tint over my picture when using HD Retrovision component cables. I removed R15, R16, and R17 and nothing else. I've used a multi-meter and tripled checked all my connections to make sure the solder points on the Super Nintendo are reaching the RGB board. Also checked to make sure the red, blue and green wires aren't shorting to each other or anywhere else. I'm 99% certain the RGB board soldering is good, but I was unsure which RGB board pins go to where on the multi-out connector. I'm sure it's something simple I'm overlooking, but I just don't know what else to check. S-video looks correct with no anomalies, so I know it's my RGB board or wiring. First three pics are RGB and install. Last pic is S-video. Just wondering if anyone has any ideas on what to check.

[Kez]

Looks to me like you're getting no blue. Can you run 240p test suite and look at some test patterns? Or have a game that shows pure blue rather than the cyan seen here? It should be easier to confirm. In this image you are getting green where blue should be, but I think that's just because it's cyan blues that are a mixture of blue and green.

Either way I'd start by investigating the blue connection, I believe it's pin 4 which is the second from the right on the top row iirc.

[D]

Those 3 wires, so beautifully cut and soldered!
That and what Kez said seems very plausible.
Good luck and please show us what the result will be after all is done

[TooBeaucoup]

^^^ Thanks, fellas. Confirmed every connection, all seems good. I managed to get a hold of Borti, who said he's pretty much left the mod scene. And he thinks it could probably be a faulty THS7374. After all, it's a cheap chip and despite being super cheap, people still fake them. I have a new board on the way, so we'll see what happens.