PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SPAL-8S-0 (front) | PAL | 9351 | SHVC-1A3M-20 | D413A | MAD-1 | - | - |
| SPAL-8S-0 (front) | PAL | 9403 | SHVC-1A3M-20 | D413A | MAD-1 | - | - |
| SPAL-8S-1 (front) | PAL | 9420 | SHVC-1A3M-20 | D413A | MAD-1 | - | - |
| SNS-67-0 (front) | USA | 94xx | SHVC-1A3M-20 | D411A | 64k | MAD-1 | - |
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