Re: K5 Repair Issues

--- In [email protected], Antoine Deschênes <antdes45@...> wrote:
>
> Hi, sorry,  I thought it was still working and that it was one of the 
> usual problems : After a backlight replacement, the LCD still doesn't 
> light. The inverter usually dies at the some time as the old EL foil. I 
> don't think replacing the inverter will fix your problem. Usually, when 
> the inverter starts working poorly, it's due to cold joints in the 
> inverter, which are impossible to reach. It shouldn't short things out. 
> You'd better remove it from the K5 for the moment and look for blown 
> fuses or bad connections, especially between the input PCB and the power 
> switch.
> 
> Antoine
> 
> > I apologize, but I must not be understanding you correctly.  Maybe if I were talking to 
you 
> > in person I would pick things up.  After replacing the backlight, my Kawai K5 does not 
> > work at all.  The display does not function at all and there is no sound.  Will replacing 
the 
> > inverter on the power supply PCB fix this?  Thanks for your patience.
> >
> > Ivan
> >
> >
>

I checked around inside.  Apparently one of the wires connected to the power switch was 
disconnected.  I re-soldered it.  That almost seems as bad as forgetting to plug it in.  After 
turning it on, I noticed two things:  the backlight I just installed does not work, and I can't 
see the text when I look directly down at the display.  I don't remember the latter being 
the case prior to my "repair".  I realize that the backlight not working signifies the inverter 
is bad.  What about the text?  I now need to look at the display at a slight angle.  This isn't 
an issue, but I don't understand why this is.

Also, any information, like where it is located and what it looks like, about the inverter 
would be appreciated.  An image would be wonderful.  I checked out the link you posted, 
but would like more information before I try "fixing" the keyboard anymore.

Ivan