PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SFRG-J8-0 (front) | Germany | 9342,9343 | SHVC-2A0N-11 | D413A | - | SN74LS00N | - |
| SITA-J8-0 (front) | Italy | 9344 | SHVC-2A0N-11 | D413A | - | HD74LS00P | - |
| SPAL-J8-0 (front) | PAL | 9341 | SHVC-2A0N-11 | D413A | - | SN74LS00N | - |
| Prototype (front) | USA | - | SHVC-4PV5B-01 | D411A | - | SN74LS157N | - |
| SNS-J8-0 (front) | USA | 9342 | SHVC-1A0N-20 | D411A | - | - | - |
| SNS-J8-0 (front) | USA | 9343 | SHVC-1A0N-20 | D411A | - | - | - |
| SNS-P-J8-1 (front) | USA | 9743 | MAXI-1A0N-30-2 | D411B | - | - | - |
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