PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| Prototype (front) | Japan | - | SHVC-2P3B-01 | D411 | - | HD74LS139P | - |
| Prototype (front) | Japan | - | SHVC-4PV5B-01 | D411A | - | SN4LS157N | - |
| SPAL-AFMP-0 (front) | PAL | 9504 | SHVC-1A0N-30 | D413A | - | - | - |
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