[sdiy] what do cold solder joints look like?/csq update

[mark verbos]

I think this is the most common problem in all of Roland's old machines. I had
a 909 back in the day that had problems every few months. Cymbals not making
any sound, sequencer forgetting notes....funny stuff. Every time i fixed it by
"touching up" the ribbon cable soldering.

I now have a different 909 with a different set of problems. (It likes to
"restart" if the power isn't perfect)


now if only my 202 with the funky screen could be that simple!

mark



ElmacacoX at aol.com wrote:

> Hi everyone,
>
> thanks for the tips on solder joints.  my csq100 was having trouble keeping
> time on looped sequences, so I opened it up and noticed that some of the
> solder joints looked cloudy (think storm cloud murky grey) and some were a
> pleasant gold color.  I reheated these sometimes adding new solder until the
> greyness disappeared, sometimes the gold color disappeared, other times it
> stayed in a diluted form.   I was paying particular attention to the areas
> marked clock and tempo.
>
> everything works fine now, thanks guys, I'm glad it wasn't a bigger problem.
>
> Eduardo

--
mark verbos

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