PCB Information

ROM Chip ID Region Known Man. Dates PCB Type CIC SRAM Decoder/ Logic Circuit Special Chips
SPAL-A6SP-0 (front) (back) PAL 9540 SHVC-1A3M-30 D413B 64k MAD-1A -
SPAL-A6SP-0 (front) PAL 9541 SHVC-1A3M-30 D413B 64k MAD-1A -
SPAL-A6SP-0 (front) (back) PAL 9542 SHVC-1A3M-30 D413B 64k MAD-1 -
SNS-A6SE-0 (front) USA 9540 SHVC-1A3M-30 D411B 64k MAD-1 -

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