[sdiy] Ticking noise from Yamaha CP60M piano

[Gil W.]

OK I just noticed that ticking noise disappears if I disconnect the MIDI cable from the the piano MIDI Out jack... could this be a ground loop ?

But how about the loud hiss noise when engaging an effect loop ?


--- On Fri, 12/12/08, Gil W. <gil_we at yahoo.com> wrote:

> From: Gil W. <gil_we at yahoo.com>
> Subject: [sdiy] Ticking noise from Yamaha CP60M piano
> To: "synth-diy at dropmix.xs4all.nl" <synth-diy at dropmix.xs4all.nl>
> Date: Friday, December 12, 2008, 12:30 AM
> I had my CP60M electroacoustic piano regulated, and replaced
> 6 electrolytes caps at the output board. Once installing the
> unit back,
> I noticed two problems which I didn't notice before:
> 
> - There will always be a ticking noise heard in the
> background.
> 
> - When engaging an external effect pedal (using the effect
> loop send/return) a very loud hiss noise will be heard...
> 
> I double checked the caps values and orientation so I'm
> pretty sure this could not be the source for the problem...
> 
> Can anyone think of anything else ?
> 
> You can listen to this behavior in the following audio clip
> that made:
> 
> http://www.fileden.com/files/2006/10/13/285304/CP60M%20sound%20problems.mp3
> 
> Thanks !
> 
> 
>       
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy