[sdiy] Sequential Pro-One repair report

[Sarah Thompson]

I had a 'barn find' rackmount Sabine guitar tuner for repair a few months
ago. I suspect it had been stored in a shed, been chewed on by rats or mice
and was probably also fire damaged. Wow, was that $20 ever not a bargain!
;-)

Every contact was corroded. The display bezel was bent into a weird shape
(heat damage). Buttons weren't working. And when I had a closer look on the
back, little toothy sized chunks missing. I binned it at washed my hands a
LOT.

Sarah

On Mon, Apr 18, 2016 at 1:47 PM, gm <montalbanogm at gmail.com> wrote:

> Just as a heads-up for anyone who doesn't know --
> Grant at MTG has come up with a replacement CPU for the Pro-One, with
> integrated MIDI and a few other upgrades.  Anyone in need of a replacement
> (or looking for an upgrade) should check it out:
> http://www.musictechnologiesgroup.com/index.html
>
> I've installed several, and they work just fine.
> ~G
>
>
>
> On 4/18/2016 10:31 AM, Tom Wiltshire wrote:
>
> On 18 Apr 2016, at 17:46, MTG <grant at musictechnologiesgroup.com> <grant at musictechnologiesgroup.com> wrote:
>
>
> Thanks for the report. What did you use to "clean the pins and sockets"?
>
> A scalpel to scrape off corrosion, alcohol to remove the stickiness, and a piece of wire pushed in and out of the individual sockets. Nothing very clever.
>
> It will probably need doing again at some point, but I regard this sort of minor servicing as a fact of life with 35-year-old keyboards.
>
>
> Nice that the chip was not toast.
>
> Absolutely! That was my fear too! A dead DAC or uP would have been a serious PITA.
>
>
> I replaced my keyboard DIP cable and socket on the synth end. This helped a lot. Eventually I got sick of the J-wires and swapped out the whole keyed.
>
> Yes, I've replaced the synth-end DIP socket and replaced the cable too. I still like the J-wire keyboard though!
>
> Tom]
>
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