Yesterday I was so happy to know that this amazing forum exist!! So nice to see many STUDER / REVOX users helping each other!! That's the spirit!
I'm the owner of a 52 channel analog Studer A990 mixing audio console (lovely console!), and the past year was a nightmare for me (even now maybe).
We had some problems with the power supplies, I've seen that CAPS were a little damaged, and replacing them was the CHAOS!.
After that, we starded having a thousand of problems, one after other after other... etc. I don't want to extend much over this (if anyone want's to know the details, I'll invite a SPATEN beer with plenty of time).
As a resume, the console didn't started anymore, all the leds and lighs were blinking, had OV alarm, etc etc etc, and after re-caliber the power suppplies, I've found that HOST we're kind of DEAD.
Worst even, our red folders of service manual doesn't have diagrams and part lists of any of the MKII controllers (HOST, HLDC, DISC CONTROLLER, ARCNET), and neither the official PDF from STUDER FTP has neither of this diagrams or parts list.
So, It's been a long time of investigation, test & error, buying NOS components, and finally I was able to re-stablish the order... but... Here I come with my actual problem!
Now, we started having checksum error on startup because of the many years of the EPROMS, and they can't hold any longer the data.
The only thing I can see is that both MKII and software version V1.0, (in order, IC32 IC33 IC34 IC35 of 1.990.996.20 is HOST and of 1.990.997.20 is HDLC).
So, I was wondering if any of you, any A990 user, or any user you might know could have the software for each controller, a .BIN dump.
I have a universal programmer with me and I can program new EPROMS to solve this,
The reason I'm contacting you is because AUDIOHOUSE want to charge me 200 CHF (190 EUR) for each 4 IC lot for each controller, and I think that it's quite elevated price for 4 EPROMS with a software that it's MANDATORY to run the console, and having present that it's an audio console without service since 1994 (20 years now).
In my honest opinion, that software should be free and public access to every A990 user.
Well, I hope that any of you could give me a hand with this, if lucky you have it or you can get it, I'll really appreciate if it could be send it to me (file transfer, wetransfer, email, etc.).
Many thanks in advanced.
Kind regards!,
Pablo
