PCB Information

ROM Chip ID Region Known Man. Dates PCB Type CIC SRAM Decoder/ Logic Circuit Special Chips
SPAL-4Q-0 (front) PAL 9445 SHVC-1A3M-21 D413A 64k MAD-1 -
SPAL-4Q-0 (front) PAL 9446 SHVC-1A3M-21 D413A 64k MAD-1 -
SPAL-4Q-0 (front) (back) PAL 9450 SHVC-1A3M-30 D413A 64k MAD-1 -
SNS-4Q-0 (front) USA 9435 SHVC-1A3M-21 D411A 64k MAD-1 -
SNS-4Q-0 (front) USA 9436 SHVC-1A3M-21 D411A 64k MAD-1 -
SNS-4Q-0 (front) USA 9438 SHVC-1A3M-30 D411A 64k MAD-1 -
SNS-4Q-0 (front) (back) USA 9817 SHVC-1A3M-30 D411B 64k MAD-1A -

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