Re: [AH] Looking for an OB-8, OB-SX, or OB-XA power transformer

From Oakley Sound via analogue
Sent Wed, Sep 26th 2018, 14:53

Lorne > shiny new ribbon cables too?

Just the keyboard and interface ribbon cables were replaced. The other 
ribbons were in good condition.

Here's the before and after pictures. The 'before' being the machine as 
it arrived with me.

http://www.oakleysound.com/OBSX_before.jpg

http://www.oakleysound.com/OBSX_after.jpg

As you can see the poor thing was voiceless. It did have an unusual midi 
interface fitted but I have removed that so I can use this one:

http://www.midisoft.de/OBSX/obsx_midi_control_rev2c.html

The new end cheeks are courtesy of Ross Lamond.

The bizarre thing was that the CPU board was fitted with the last 
version of the software but the board is an early version and was fitted 
with all the components for the earlier firmware including the 
monophonic glide circuit. Needless to say it didn't work very well even 
after all the dead ICs were replaced.

The original DAC had also died and I couldn't get a replacement without 
paying a lot. So I lashed up, on a small bit of stripboard, a different 
but better DAC. You can see it fitted to the middle of the CPU board.

Tony

www.oakleysound.com