[sdiy] broken oberheim matrix 6r

[Danjel van Tijn]

So how did the two data pins become shorted together?
Seems like these oberheim's are prone to selfdestruction! :p

cheers,
     Danjel


On 4/4/07, David Brown <davebr at earthlink.net> wrote:
> I had an 8253 fail in my Matrix-1000 which is basically the same
> circuit design.  Two data pins shorted together with ~100
> ohms.  Totally screwed up the processor.  I had to shotgun cutting
> data lines to figure out where the short was.  The good news is that
> the 8253 is cheap and available but a bear to replace.  I ended up
> cutting off all the pins and removing each pin individually with a
> solder sucker.
>
> Dave
>
> At 12:46 PM 4/4/2007, Danjel van Tijn wrote:
> >Hi karl,
> >
> >Does the 8253 timer commonly fail? I will definitely check it out...
> >
> >thanks for the tip!
> >
> >Danjel
> >
> >On 4/4/07, karl dalen <dalenkarl at yahoo.se> wrote:
> >>Have you checked the 8253 timer?
> >>
> >>If these dont work you wont get any sound!
> >>
> >>KD
>
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