> From: peterjamesstephen
>
> I have 3 Chroma polaris synths, one has never been used
> (Bought for a spare in 1986) I keep it in is flight case and
> change the battries once a year. just changed them and when I
> turned the polaris on the lights just freeze and i cant
> change any buttons?
> I seem to remember this may be a power supply reglulator
> problem, as I think this polaris was imported to the uk for
> the the states

It could be a lot of things. Fortunately, many of the things that it could
be are merely mechanical issues with connectors or IC sockets. Even if you
have absolutely no electronic tools, try reseating all the connectors (but
don't touch the membrane switch tails). If still no joy, then try prying the
memory chips up slightly and pushing them back down. (Do these things with
the power off, obviously.) If you have a voltmeter, you can check the
various supply voltages, and also make sure the DC OK and AC OK signals from
the power supply are high.

--

Ciao, Paul D. DeRocco
Paul mailto:pderocco@...