There are 3 EPROMS on the sound board, all are the same size.
| EPROM Information | |||||
|---|---|---|---|---|---|
| Part Number | Size | Layout | Pins | ||
| 27512 | 512K | 64 x 8 Bits | 28 | ||
| 27C512(EEPROM) | 512K | 64 x 8 Bits | 28 | ||
| Game ROM Information | |||||
|---|---|---|---|---|---|
| Location | Size | Checksum | Version | ||
| U4 | 512K | 007CE25C | 8 | ||
| U19 | 512K | 0083445A | 8 | ||
| U20 | 512K | 0083A858 | 8 | ||