PCB Information
| ROM Chip ID | Region | Known Man. Dates | PCB Type | CIC | SRAM | Decoder/ Logic Circuit | Special Chips |
|---|---|---|---|---|---|---|---|
| SHVC-JL-0 (front) | Japan | 9414 | SHVC-2A3M-10 | D411A | 64k | MAD-1 | - |
| SPAL-JL-0 (front) (back) | PAL | 9514,9413 | SHVC-2A0N-20 | D413B | - | SN74LS00N | - |
| SPAL-JL-0 (front) | PAL | 9516 | SHVC-2A0N-20 | D413A | - | SN74LS00N | - |
| Prototype (front) (back) | USA | - | SHVC-4PV5B-01 | D411A | - | SN74LS157N | - |
| SNS-JL-0 (front) | USA | 9423 | SHVC-2A0N-11 | D411A | - | GD74LS00 | - |
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