[Noisebridge-discuss] Repairing a digital piano?

jim jim at well.com
Thu Nov 21 20:06:16 UTC 2013

    Are you willing to take the thing 
apart to the extent that you risk 
ultimate repair? 
    I'm willing to come to where it 
is, and would gladly share inspection 
with others who may be interested. 

    Without knowing, the problems 
likely involve a diode bridge, a 
storage-filter cap, a resistor. 
    It's possible that some part of 
an IC has failed, and to remedy that 
requires replacing the IC (or, more 
creatively, learn how the internal 
circuitry works and determine if 
one can strap new, compensating 
circuitry around the IC, not likely). 

On Thu, 2013-11-21 at 11:05 -0800, Jeffrey Carl Faden wrote:
> I've got a heavy, 88-key Korg SP-100 digital piano that's been sitting
> in my living room without power for a few years. What I originally
> thought was something wrong with its AC adaptor (since replaced) is
> now probably an actual internal problem where it receives power.
> I don't want to bring this hulking thing to Noisebridge, so I'm
> instead looking for recommendations for repairs of this type.
> Preferrably some repairperson who could come, take the thing apart,
> gauge what's wrong, and get replacement parts if necessary. Anyone
> know of a good service? Anyone looking to provide their own services?
> Jeffrey
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