PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| Prototype (front) (back) | Japan | SHVC-4PV5B-01 | D411A | 32k | SN74LS157N | - | |
| SPAL-2G-0 (front) | PAL | 9710 | D413B | 64k | MAD-1 | - | - |
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