the best thing to do would be to grab the schematics here:
http://home.swipnet.se/cfmd/synths/companies/oberheim/identify what U17 IC is; just look at the page of the board that it is on. plug that in to a search at mouser.com, and see what comes up. very good chance its still available.
> From:
fernandozarone@...
> To:
analogue@...
> Date: Fri, 3 Jul 2009 20:38:41 +0200
> Subject: [AH] OB8 HELP!!! URGENT!
>
> Dear friends,
> I stupidly, as a newbie, bought a OB8 for a friend that seemed to work
> properly when I checked it .
> At my return home, I switched it on, tried to save some patches and,
> immediately, all the memories were erased. Moreover, now only the
> lower voice board is heard. The upper has the leds switched on
> sequentially but no sound.
> At a more careful check, the U17 IC (RAM) is MISSING!
>
> I have tried to save some patches in the machine, they seem to work.
>
> What happened? Did I have a ripoff? Is the U17 missing normal ?
>
> I have no service manual
>
> Please help me asap, my friend will not pay my money back...
>
> Fernando
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