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AGCRetrogaming

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Hi everyone

I'm trying to create one video output board for JAMMA boards with RGB parallel, Component Video, S-Video, Composite Video and Audio.
for this project I'm using both AD725 and the BA7230 at the same time. Basically I used the same circuit provide by the chip maker and I adjust a little bit acc. some recommendation.
But something still wrong because when I tried my supplier power just burned out.

Please see attached the schematic what I'm using, I really do appreciate any suggestion and advice regarding improvements or changes.

Thanks for the support
 

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I'll take a look when I can.

I have a decent composite and s-video converter via a cxa2075 but would like to incorporate component video.
 
Thanks for the support.
So would I because some Jamma board does work good on LCD but some other doesn't just in CRT special jamma shooter games. and also I would like the options for PAL just in case
 
Sorry haven't had a chance to take a proper look yet.

Regarding NTSC/PAL, I found a vast majority of arcade boards utilise NTSC timing. When I used a PAL crystal in my board most games didn't work so I just stuck with NTSC.
 
Thanks everyone for the feedback finally I got success.
 

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Ok now is moments for improvements, and accepting suggestions.

I got too much brightness with BA7230LN YPBPR on the CRT TV and I got no image signal on LCD.

I saw the THS7374 amp, but I wonder if this will solve the issue with Brightness and also works on LCD.

I'm setting M170ETN01 and controler board + YPBPR to HDMI generic but I'm thinking the JAMMA board output is 240p or 224p (depend of the game) and this set just accept 480p minimum.

My understand is if I apply the THS7374 which is a SDTV Amp (Y'P'BP'R 480i/576i) I can get image on my LCD.
Regarding the Brightness issue I saw some application with BA6592/4F and the fixture Low-Pass Filter could fix this issue on SNES mini.

I do appreciate any idea or suggestions about it.

Thanks for the support
 
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