Yes, my best guess is that it is a bad EPROM. Unfortunately I don't have the image files for the MIDI version. I have image files for the original so I tried to remove the MIDI board and put in the original EPROMs. There was no flickering but no sound either. I'm not sure if i need to change anything else to revert it to original non-MIDI. So a set of image files for the MIDI version would be useful too. Doug > Posted by: "Paulo Palmieri" paulopalmieri@... souldream70 > Date: Tue Nov 27, 2012 11:58 am ((PST)) > > I don\ufffdt have the eprom but have an OB-Xa with the same problem. > In my case the buttons are working but the leds are flickering too and after 20 minutes they light off... > I suppose that this could be an Eprom problem??? > > Paulo > > > > ----- Original Message ----- > From: doug1052365 > To: oberheim@yahoogroups.com > Sent: Tuesday, November 27, 2012 5:43 PM > Subject: [oberheim] OB-Xa Diagnostic EPROM needed > > > > I'm trying to repair this OB-Xa w/JL Cooper MIDI. > Has no sound, all LEDs are flickering, buttons don't change anything. > The power supply is OK. It seems the CPU is not booting up. > Does anyone have an image of the Diagnostic EPROM? > > Thanks > > Doug > > > > > > > > Messages in this topic (2) > > > > > > ------------------------------------------------------------------------ > Yahoo! Groups Links > > > > ------------------------------------------------------------------------ >
Message
Re: OB-Xa Diagnostic EPROM needed
2012-11-28 by Doug
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