Recently I acquired a VA3 Genesis 2 console and had it modded with a v0.3 Triple Bypass board to get better audio and RGB quality out of it. By itself, the RGB output from the Genesis looks incredible and the audio is even better, sounds like everything went well right? But when I decided to try it with my 32X, my OSSC could no longer find a useable sync signal and composite video also stopped working properly through the 32X (just a *very* dim rolling picture). Here's a rundown of what's going on:
- The 32X itself still works, I tested it with my unmodified JP Mega Drive 2 and everything worked fine.
- I'm using an RGB SCART cable that uses composite video for sync. The same cable works on the Genesis 2 without the 32X connected and my OSSC has no issues with it.
- Pins 21 to 23 have been lifted on the CXA1645 so the original RGB signals don't interfere with the new signals from the 3BP board. Pins 2 to 4 on the encoder have not been lifted as I wanted to preserve composite video.
- The 3BP has been mounted on the underside of the motherboard and is soldered directly to the pins on the mini-DIN AV connector.
- The RGB signals are being taken directly from the VDP and go straight into the 3BP.
- The composite sync signal has not been touched in any way.
- I'm also using the original link cable that came with the 32X.
I'm hoping to sell this console off soon as I'd prefer to keep the Mega Drive 2, but I don't want this to become someone else's problem nor do I feel comfortable selling a console that is no longer compatible with a major add-on. Any help would be greatly appreciated!