PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SITA-WM-0 (front) | Italy | 9336 | SHVC-1A1M-01 | D413A | 16k | MAD-1 | - |
| SPAL-WM-0 (front) | PAL | 9336 | SHVC-1A1M-11 | D413A | 16k | MAD-1 | - |
| SNS-WM-0 (front) | USA | 9312 | SHVC-1A1B-06 | D411A | 16k | SN74LS139N | - |
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