Vintage Synth Repair

It is likely that the battery went flat and corrupted what was in memory.
You have replaced the battery, did you re-initialise it?

I don't have a JX3P but you might like to try this link

http://fa.utfs.org/diy/jx3p/jx3p_howto.htm

to show you how to reinitoalise it.

Best of luck

Royce

--- In vintagesynthrepair@yahoogroups.com, Gwydi wrote:
>
> I have a JX3P that was unused for several years.
>
> When first powered on, some of the lights would come up but there was
> no response to pressing any of the controls or keys, nor would
> incoming midi have any effect. There was a faint soft white noise that
> slowly panned from left to right and back again reminiscent of the
> chrous sound.
>
> My first thought was to replace the battery, but having done that I've
> clearly made it worse. Now when powered up, there is no sound at all
> and nothing lights up. The only sign of life I can get from the unit
>; is that the LFO trig button will light up when pressed but goes off
> again when you release the button.
>
> I talked to Roland here (Sydney Australia) who basically said there
> are no spares for that unit any more so there's no point bringing it
> to us.
>
> I also have a D5 that has several dead keys. It's not due to dirty
> contacts - I gave it a thorough clean and they're still dead. It also
> has the weirdest sound glitch I've ever heard - this is me playing C
> and E together: http://www.elderwyn.com/d5glitch.mp3 ... what's
> interesting is that the demo song plays perfectly (no glitching) so
> I'm guessing the keyboard control circuits are the culprit.
>
> Any suggestions on either?
>
> Thanks,
> Gwydi
>