Vintage Synth Repair

What are the issues that you are trying to correct?  There are built in aids like calibration and no op.  




>________________________________
> From: Thomas <troperecordings@...>
>To: vintagesynthrepair@yahoogroups.com 
>Sent: Wednesday, December 5, 2012 3:51 AM
>Subject: [vintagesynthrepair] OBXa diagnostic EPROM needed
> 
>
>  
>Hi guys,
>
>thanks for approving my membership to this list :-)
>
>I'm restoring an Oberheim OBXa 8-voice and looking for the diagnostic EPROM with paperworks for it. A BIN would be fine.
>It's REV C mainboards and has a Numera Midi interface installed.
>Will probably remove the Numera first to get the machine up and running and see if it's the Numera that's causing trouble.
>Fortunately all the voiceboards are fine.
>Any help would be great and appreciated :-)
>
>Best regards,
>
>Thomas
>
>
> 
>
>