PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SPAL-A7RP-0 (front) | PAL | 9543 | SHVC-1J0N-20 | D413B | - | - | - |
| Prototype (front) (back) | USA | - | SHVC-4PV5B-01 | D411A | - | SN74LS157N | - |
| SNS-A7RE-0 (front) | USA | 9532 | SHVC-1J0N-20 | D411B | - | - | - |
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