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bollux78
11-26-2007, 11:54 AM
Hello,

I´m trying to figure out how to mod my sega master system I for s-video output.

I know the mod is done by some people that charge for it, and I´m in Brazil so even if I wanted I could not send the system or the mod.

It uses the MC1377P and it has the Y and C outputs, but I have no idea on what extra components must be added.

I havethe schematics of the master syustem and the mc1377p, if someone is interested in helping me I´d be very glad!

Thanks a lot

Daniel

omnedon
11-27-2007, 11:04 AM
All of the SMS's I've modded have the SONY CXA video encoder. I have no idea if that op-amp mod would work with that chip.

FABombjoy, any ideas?

FABombjoy
11-27-2007, 02:20 PM
The datasheet for the MC1377P has the schematic for s-video (written as S-VHS) output. It's not nearly as simple as the CXA mod. The given waveforms suggest it's possible to use an alternative circuit similar to the CXA mod, but that's out of my grasp.