I've got a Korg Poly800 mk2 that refuses to do anything ither than produce filtered noise. I've been lead to believe that this is a fault with the firmware eprom.
I've taken a dump of the eprom in there which was labelled as an HN4827128G-25 and then erased it, and that worked fine. When i click 'blank test' on my willem programmer software it comes up that the device is blank and if i read it every entry is FF.
I've got a dump of a working Poly 800 mk2 .bin file off the net but thats labelled as being from a 27C128 eprom and won't write to the eprom i have. I don't know if this is because the one i have is damaged and can't be written to, or because its the wrong kind of eprom for that file.
Is the HN4827128G-25 actually compatible with a 27C128 .bin file or has the person who uploaded it just labelled it wrong? It seems unlikely there would be different eproms in different Poly 800 mk2's. If the eprom i have is actually damaged an can never be written to, should i be getting hold of a 27C128, trying to track down a HN4827128G-25, or looking for some eqivalent thats easier to get hold of?
If anyone has a Poly 800 mk2 and has faciliies to take eprom dumps could you do me a copy and send it to me?