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Vintage Synth Repair

Index last updated: 2026-04-28 23:41 UTC

Message

Re: YAMAHA SY77 freezes

2013-06-10 by m.sislack

Hi Royce,

of course i have but even when i try to enter the diagnostic mode it freezes immediately.

Thanks for your suggestion anyway

moe

--- In vintagesynthrepair@yahoogroups.com, "Royce" <rpcfender@...> wrote:
>
> 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" <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 <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 <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
> > >
> >
>

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