PCB Information

ROM Chip ID Region Known Man. Dates PCB Type CIC SRAM Decoder/ Logic Circuit Special Chips
SHVC-GF-0 (front) Japan 9225 SHVC-1A3B-13 D411 64k SN74LS139N -
SPAL-GF-0 (front) PAL 9306 SHVC-1A3B-13 D413A 64k SN74LS139AN -
SNS-6R-0 (front) USA 9335 SHVC-1A0N-20 D411A - - -

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