Vintage Synth Repair

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
>