spaceanimals a écrit :
>Had one. Had the best Pulse Width Modulation, the synth sounded warm
>and lush and never ever ran right for more than fifteen minutes.
>Massive crashes constantly and then alas one day she crashed and never
>recovered.
>
>Jimmy
>
>
Hello Jimmy !
I've heard things like that... a very interesting instrument but not
very reliable. As a lot of these old days synths...
As far as i know some worked perfectly, others were always in the repair
shop. The manufacturing quality was surely worst than the design itself.
On my opinion yours was affected by power supply failures caused by an
excess of heat (too small heatsinks or excessive current) leading to
some regulator IC emergency shutdown, and the µP crash. Let it cool
down: you can restart until the next crash and so on, until you turn it
off definitely. The last and final stop was probably the death of some
inexpensive supply part. Nothing really serious, but boring....
With these old machines it was better (if not imperative) to have some
basic-or more- electronics knowledge, unless you wanted to spend a lot
of money in maintenance and upgrades. It's always obviously true for
vintage gear collectors.OK, you want only to store the collection in
some show room and never play a note? If not, buy quickly a DMM, an
oscilloscope, a good soldering iron and learn how, where and when to use
this equipment!
That's one reason (the other being the price) of the overwhelming
success of the 80s digital japanese synths: more voices, cheaper, and
far more reliable than the analog "dinosaurs".
Cheers
J.F.