PCB Information

ROM Chip ID Region Known Man. Dates PCB Type CIC SRAM Decoder/ Logic Circuit Special Chips
SPAL-27-0 (front) PAL 9627 SHVC-1A0N-30 D413B - - -
SNS-27-0 (front) (back) USA 9427 SHVC-1A0N-20 D411A - - -
SNS-27-1 (front) USA 9639 SHVC-1A0N-30 D411B - - -

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