Kawai Synthesizers

A while ago my K3 died.  The LED display does not light up.  The Kawai 
techs say that it is probably a logic error.  I noticed that one of 
the chips in the center of the 'motherboard' was replaced.  I'm 
thinking that maybe it has failed a second time.  Does anyone have 
experience with repairing a K3, or have a service manual that is 
scanned?  I really would like to get it going again.  I still will 
probably try to replace this one chip.

Thanks.  Brian.

What do you mean by it looks replaced?

Are you sure that the PSU works?

hammodelav a \ufffdcrit :

>A while ago my K3 died.  The LED display does not light up.  The Kawai 
>techs say that it is probably a logic error.  I noticed that one of 
>the chips in the center of the 'motherboard' was replaced.  I'm 
>thinking that maybe it has failed a second time.  Does anyone have 
>experience with repairing a K3, or have a service manual that is 
>scanned?  I really would like to get it going again.  I still will 
>probably try to replace this one chip.
>
>Thanks.  Brian.
>  
>

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Yes, I have verified the voltages on each of the legs of the power 
supply, and Kawai had said that based on what I see, it is a logic 
error and cannot be the power supply (+/- 5v is fine).

Thanks. 

--- In kawaisynths@yahoogroups.com, Antoine Deschênes 
<antdes45@y...> wrote:
> What do you mean by it looks replaced?
> 
> Are you sure that the PSU works?
> 
> hammodelav a écrit :
> 
> >A while ago my K3 died.  The LED display does not light up.  The 
Kawai 
> >techs say that it is probably a logic error.  I noticed that one 
of 
> >the chips in the center of the 'motherboard' was replaced.  I'm 
> >thinking that maybe it has failed a second time.  Does anyone 
have 
> >experience with repairing a K3, or have a service manual that is 
> >scanned?  I really would like to get it going again.  I still 
will 

> >probably try to replace this one chip.
> >
> >Thanks.  Brian.
> >  
> >
> 
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