PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SPAL-AR9P-0 (front) | PAL | 9531 | SHVC-BJ0N-20 | D413B | - | HD74LS00P | - |
| SNS-AR9E-0 (front) | USA | 9528 | SHVC-1J0N-20 | D411B | - | - | - |
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