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RGB modded TV for Arcade Monitor

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Zebidee:
I don't know about all that - most RGB mods involve inputting the sync via composite video, and that carries the frequency info. So I don't see how an RGB mod will change anything, even if the RGB signals are going in by OSD. That's my theory, but happy to be proven wrong.

So, if you do this RGB mod, I suggest you test it with something like CRU or crt_emulator first, to see what it accepts and what it does not.

Rocketeer2001:
Well I have some new info! I was in contact with a customer service rep at Incredible Technologies and he said that this mythical "Monitor Scaler Board" I need to make BBH2 run in CGA mode was a device made by Averkey, and that was all he knew. I did a web search and found the AVerMedia AVerkey iMicro PC to TV Converter:
https://www.bhphotovideo.com/c/product/677824-REG/AverMedia_DKEYIMID2_AVerKey_iMicro_PC_Mac_to_TV_Converter.html

It has a VGA output that's supposedly an RGB SCART, but the specs don't say if the output signal is in 15kHz @ 60Hz or something else. I emailed AVerkey to see what they could tell me. If this works, that would mean this is a scan converter, right? Then I could go back to using the TV as a monitor and doing the RGB mod, or at the very least I could get S-video out of it, so that's a step in the right direction.

Rocketeer2001:
Another day of disappointments, hurray!

I received in the mail the AVerkey iMicro scan converter. Lets me hook up the VGA 25kHz output from the graphics card on the game board and it'll output a 15kHz on S-video, composite, or SCART. I didn't have the SCART ready (the TV still needs to be RGB modded), so I tried S-video. Image is...fine...kinda muddy and has a slight jitter, but it was working...mostly. The image is shifted to the right a few inches, and cropped. I can center the image back into the screen using the TV's menu's, but I don't know how to 'uncrop' it.

On top of that, the light gun doesn't work. I pull the trigger, the screen flashes, but no shots are registered. I tried using the composite output instead, and same story. I'm wondering now if this converter is somehow messing up the signal the game board is expecting when you use the gun.

So close...

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