[MAME]

Board layout


Top board

8039                                   rom p3f

              74s288                   rom p2f

rom SA                                 rom p1f

rom M/A                                rom p0f

rom W         18318 18318      rom 15  rom 14

8253          18318 18318      rom 05  rom 04
              18318 18318
8253          18318 18318      rom 13  rom 12
              18318 18318
TMS5200       18318 18318      rom 03  rom 02
              18318 18318
                               rom 11  rom 10
              18318 18318
                               rom 01  rom 00

Bottom board

93Z511DC      93425
DM81LS95      93425
              93425            18318
              2148
              2148             18318

                               18318

                               18318

                               18318

              74s288           18318
                     2114
                     2114 4016
                     2114
                     2114 4016

        Z80
DIP1
DIP2    XD2210


XD2210 or 8202
DM81LS95 = TriState buffer

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