Schematics

=AES=

Big thanks to Wolfsoft and ArcadeTV for the scans.

=MVS=

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.

Page 1

 * 68k
 * 68k RAM
 * Battery-backed RAM
 * SP1
 * NEO-C1
 * joypad ports
 * UPD4990
 * battery circuit

Page 2

 * LSPC2-A2
 * VRAM
 * NEO-I0
 * NEO-B1
 * NEO-ZMC2
 * SFIX
 * LO

Page 3

 * System register latch
 * NEO-E0
 * palette RAM
 * video DAC

Page 4

 * Z80
 * Z80 RAM
 * SM1
 * NEO-D0
 * YM2610
 * YM3016
 * headphone amp

Page 5

 * speaker amp
 * NEO-F0
 * DIP switches
 * cab outputs

Page 6
Daughterboard connections (0%)

Page 8
Daughterboard connections (0%)

Page 9
Cartridge connections (0%)

Vectorized version: Link to last SVG file: