Schematics
AES (home)
Big thanks to Wolfsoft and ArcadeTV for the scans.
On page 6: There are two resistors in the bottom left corner that can't be seen due the page fold.
The R48 4.7k is connected to VCC and R49 4.7k is connected to GND.
Both resistors are connected to pin3 of U31A.
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Page 1:68k 68k user RAM NEO-C1
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Page 2:NEO-G0 Palette RAM Video DAC
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Page 3:NEO-B1 Reset generator Joypad ports
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Page 5:Z80 Z80 RAM NEO-D0 (original scan)
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Page 7:Video encoder
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Page 8:cartridge slot
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Page 9:System latch NEO-E0 Power supply
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Page 10:Memory card
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Page 11:Video PLL
MVS (MV1F)
Beware ! There's an error on page 9 (cartridge edge connections): ROMOE/4MB are swapped. ROMOE should be on pin 33 bottom, and 4MB is on pin 34 bottom.
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Page 1:68k System ROM 68k user RAM Battery-backed RAM NEO-C1 Joypad ports UPD4990 Battery circuit
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Page 3:NEO-E0 System latch Palette RAM Video DAC
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Page 5:Power amp NEO-F0 DIP switches Cab interface
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Page 6:Daughterboard connections
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Page 7
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Page 8:Daughterboard connections
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Page 9:Cartridge connections
Peripheral (home/arcade)
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Steering wheel schematic for Thrash Rally.
