I'm looking for any information on MSX1 "Engine" chip from Toshiba - T7937 (V9918 + AY8210 + Z80 all in one).
Ideally I need pinouts. Or a scan of service manual for Toshiba HX-51 or 52. I have a computer with this chip inside, and it only has composite output. I'd like to try and get RGB out working. I need to know what pins of T7937 are providing R, G, B and sync signals.
Please take a look, may be you have the service manual somewhere around... Thanks!
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