A quick dump of the old BIOS, some issues were revealed with the actual dumping process… I need to inspect my GQ-4X as it seems to have some strange issues going on!
The chip has a sticker that reads PIONEER PD6126E over the EPROM window. The chip itself is a Fujitsu MBM27C1024A-12Z made Week 28 in 1993.
since sometime in the mid-1990s. We are powered by a 