PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SNS-KX-1 (front) | PAL | 9331 | SHVC-BA0N-SP1 | D413A | - | SN74LS00N / GD74LS32 | - |
| SPAL-KX-0 (front) | PAL | 9331 | SHVC-2A0N-10 | D413A | - | HD74LS00P | - |
| SPAL-KX-0 (front) (back) | PAL | 9334,9332 | SHVC-2A0N-10 | D431A | - | HD74LS00P | - |
| SPAL-KX-0 (front) | PAL | 9643 | SHVC-1A0N-30 | D413B | - | - | - |
| SPAL-KX-1 (front) | PAL | 9336 | SHVC-BA0N-SP1 | D413A | - | SN74LS00N / GD74LS32 | - |
| SNS-KX-0 (front) | USA | 9330 | SHVC-2A0N-10 | D411A | - | HD74LS00P | - |
| SNS-KX-0 (front) | USA | 9330 | SHVC-2A0N-10 | D411A | - | HD75LS00P | - |
| SNS-KX-0 (front) | USA | 9331 | SHVC-2A0N-10 | D411A | - | GD74LS00 | - |
| SNS-KX-0 (front) | USA | 9339 | SHVC-1A0N-20 | D411A | - | - | - |
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