Oberheim 4 voice owner and service manuals needed

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Herzinberg
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Oberheim 4 voice owner and service manuals needed

Post by Herzinberg » Tue Nov 17, 2009 2:28 pm

Hi everyone!

I'm a happy owner of 4 voice monster.
I really need Oberheim 4 voice owner and service manuals so if you have one let me know.

Thank you!

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japan
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Re: Oberheim 4 voice owner and service manuals needed

Post by japan » Tue Nov 17, 2009 3:56 pm

Congratulations, vintage Oberheim stuff is a really cool choice.



Here I found a helpful information: http://site.voila.fr/4VOICE


cheers.
"the simple life is no longer there..."

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Maschinengeist
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Re: Oberheim 4 voice owner and service manuals needed

Post by Maschinengeist » Thu Nov 19, 2009 1:36 am

I have the schematics somewhere in my repairshop
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Herzinberg
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Re: Oberheim 4 voice owner and service manuals needed

Post by Herzinberg » Thu Nov 19, 2009 12:01 pm

Thanks guys!

I'm asking about service manual because i have several malfunction:
- Programmer could not load, save, its both ENVs (VCA and VCF) doesn't affect SEMs at all, and the VCF Amount knob also doesn't
- Polyphonic Keyboard Module gets faulty in SPLIT MODE - in 3-1 it plays 4 SEMs on the left hand and total silence on the right (sometimes it sounds in the right part of the keyboard but it happens randomly and usually it is only 1 random SEM), in 2-2 it behaves actually the same as in 3-1 mentioned above and in 1-3 mode it plays nice and right way but like being in healthy 2-2 mode so it devides the keyboard into 2 SEMs - 2 to left and 2 to the right.

I've conntected all the SEMs in the right order (1-4) because they were not.

P.S. It would be great to know for me - how to take off 4 voice keyboard out? I need to replace 4 bushings - I've replaced them on my Mini and it wasn't so hard but in this case I could not see any screws (only 2 of them to the right of the Polyphonic Keyboard Module).

Thank you!

Best regards,
Peter

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Re: Oberheim 4 voice owner and service manuals needed

Post by Overgear » Sat Nov 21, 2009 6:14 am

You can get the programmer and keyboard schematics here. I've never seen a service manual anywhere.

Congrats! and nice track!

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Re: Oberheim 4 voice owner and service manuals needed

Post by Herzinberg » Sat Nov 21, 2009 2:00 pm

Thank you!

I've figured out Programmer issues - that was my fault. I do not know that because Internet provides us only with one always the same scan taken from http://site.voila.fr/4VOICE (thanks for japan) and it has all info except pictures and that's the problem - SEMs must be set to some special values to be controlled by Programmer Module. If some one needs those values (they are not quite special by the way) let me know. So my Programmer is in great condition and working as a charm but Polyphonic Keyboard Module SPLIT mode still puzzles me..

Thanks!

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