Wonder boy - schems?

Solder

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Do any scems exist for Wonder Boy? An online hunt has proved fruitless so far. I'm struggling with a very faulty board and schems would be extremely helpful, either for Wonder Boy or another Sega game that uses the same hardware.

Thanks
 
All I can find is the instruction manual with the cab's wiring diagram and pinout.

Checked another System 8 like Choplifter, and it was the same. Not sure if any of the others are likely to have it...
 
Not that I've seen.

Midway Six Pack games run on "spread out" Sega System 8 hardware... if you put a six pack and a system 8 side-by-side, the chip placement is comparable, but the board is a lot bigger...

(Kinda like midway super pac vs. namco superpac)
 
What does your WB board do? I have 2 or 3 detailed repairlogs with photos up at aussiearcade.com.au which might point you in the right direction.
 
Thanks, seen them and they're very helpful thanks. :)

However, the board was extremely faulty - so far over 30 faulty chips and counting. Not really worth repairing I guess, but I'm doing it as a challenge. Only two faults now remain - no sprites (well, sometimes a few horizontal lines) and no sound .............
 
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