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Problem with old Casio CPS-700 damper pedal #1896141
05/13/12 10:30 AM
05/13/12 10:30 AM
Joined: Mar 2012
Posts: 14
T
tesalonica Offline OP
Junior Member
tesalonica  Offline OP
Junior Member
T

Joined: Mar 2012
Posts: 14
Hello, I have a problem with my old Casio digital piano, a CPS-700.
A few months ago I turned it on, and realized the sustain pedal sound was stuck. I disconnected the pedal, but the sound is still stuck. It always sounds as if I am pressing the damper pedal. If I switch it to organ, press a key and release it, the sound will continue until I turn it off.
This is extremely annoying! I have an upright piano at home, so I don't need this piano to practise, but I need it to give classes of music theory and dictations because it is in a room where I have privacy, while the piano isn't.

I went to casio's website to find 2 problems: the manual is not available, and there is no tech service in argentina.
I don't have the manual, I bought it second hand and they didnt give it to me. A friend of mine tried to reset the piano but it doesnt have a reset button.

Anybody out there has any idea of what I can do??? Any help as to how to reset the piano, any hints of what to do if someone has this model and has the manual, it'd be greatly appreciated. I really don't want to throw it away but it is unusable.

Strange fact: a few months ago a lightning struck an old pine tree in my house. Some light bulbs exploded and that was it. Days later, I turn on the piano and it was working like this. Is this related? I have no idea :S

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Re: Problem with old Casio CPS-700 damper pedal [Re: tesalonica] #1896174
05/13/12 12:04 PM
05/13/12 12:04 PM
Joined: Sep 2009
Posts: 7,238
Raleigh, North Carolina
MacMacMac Offline
7000 Post Club Member
MacMacMac  Offline
7000 Post Club Member

Joined: Sep 2009
Posts: 7,238
Raleigh, North Carolina
The piano is broken and must be repaired. If you cannot find someone to repair it, you'll need a new piano.

Re: Problem with old Casio CPS-700 damper pedal [Re: tesalonica] #1897607
05/15/12 08:36 PM
05/15/12 08:36 PM
Joined: Oct 2006
Posts: 244
east central florida
gaffster Offline
Full Member
gaffster  Offline
Full Member

Joined: Oct 2006
Posts: 244
east central florida
On my keyboard the sustain pedal simply connects the tip to the ring of the 1/4" male plug. maybe the female (internal) jack got shorted together. I would check it with a resistance (OHM) meter to make sure its not shorted somehow.
however....................
Some pianos use pedals with the opposite action (they open a normally shorted tip and ring) Some pianos can detect what kind of pedal you have if you push the pedal as you apply power. Maybe your piano is just confused. Try pushing the pedal and hold it as you turn the power on...
good luck, gaffster


-cheers!!!

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