Hi Moe
have you tried the diagnostics?
Press and hold VOICE
Press and hold BANK D
Press 8
All the best
Royce
--- In vintagesynthrepair@yahoogroups.com, "m.sislack" wrote:
>
> Hi Paul,
>
> thanks for your quick reply. The CR2032 has already been changed, all parts, boards, ics and cables i have dis- and then reassembled and reseated, I also replaced all of the electrolytc capacitors on the mainboard, but the problem still persists...
>
> regards moe
>
> --- In vintagesynthrepair@yahoogroups.com, Paul Krull wrote:
> >
> > Â You may need to replace the CR2032 batteries and reinitialize the SY77. A cable or chip could be unseated too.
> > Â Â Thanks
> >
> >
> > ________________________________
> > From: m.sislack
> > To: vintagesynthrepair@yahoogroups.com
> > Sent: Sunday, June 9, 2013 8:27 AM
> > Subject: [vintagesynthrepair] YAMAHA SY77 freezes
> >
> >
> >
> > Â
> > Hello everybody,
> >
> > I´m trying to repair an SY77, that when I got it was stuck in untility-mode. It freezes when one of the "mode"-buttons is pressed, so I cannot even enter the test-mode. Furthermore the wheels dont´t have any effect on the sound, but send midi-data. Anyone who experienced an similar problem or could provide any suggestions?
> >
> > best regards
>; >
> > moe
> >
>
Message
Re: [vintagesynthrepair] Re: YAMAHA SY77 freezes
2013-06-10 by Dennis Matana
check your bridge rectifiers in the power supply...if these get to hot the synth can freeze. Had a similar problem with a dx7 and a dj set. Swapped the BR for ones with higher values and the problem disappearred.
2013/6/10 Royce <rpcfender@...>