Disklavier

That is good news.  One of the caps on my board is actually 
disconnected from the board (hanging by one wire).  My thoughts was 
that the solder joint broke during one of the shipments of this pians 
(I'm the third owner).  Because its such a tight area to work with 
(soldering), I was thinking about removing the board carefully and 
bringing it to someone with the tools and experience.

How did you find removing the board?  Challenging?

--- In disklavier@yahoogroups.com, "midiacc2002" <BSchmidt@...> wrote:
>
> Hello yadidisklavier,
> 
> good news: Today I could repair the LC-Display of my MX100II
> successfully. I just used our disklavier for recording my daughter's
> piano piece "Brasilian flair". 
> Diagnose: One of the two caps (4,7 uF , small black cube) was bad 
and 
> so chemical agressive liquid run out. So a conductive strip was
> corroded and the result was a gap in the strip.
> I bridged the gap and replaced the two caps.
> 
> Maybe your display has the same defect. To check this you only have 
to
> bend the two caps in order to can see the stips. Then use a 
magnifying
> glass to check them.
> You can also measure whether strips are broken.
> If you have an expert for electronics he can do that for you.
> 
> I hope I could give you a hint.
> 
> btw: Electrolyt caps often fails because of run out liquid or dry 
out.
> That's a known problem. After 20 years of lifetime all electrolyt 
caps
> could be checked and replaced as a precaution if wanted.
> 
> Bernhard
> 
> St. Gallen / Switzerland
> 
> --- In disklavier@yahoogroups.com, "yadidisklavier"
> <yadidisklavier@> wrote:
> >
> > Thanks for the head up.  I'm guessing I would have figured that 
out 
> > when I looked closer.  Nonetheless, thanks.
> > 
> > Heres the rest of my story:  The tech called me yesterday and 
told me 
> > that Yamaha said these displays are on back order until June 
2007.  
> > They've had a rash of replacements recently!  And "it seems that 
> > these are subjected to age failure".  $260 plus $100 labor, on 
top of 
> > the $75 labor (already paid) to diagnose.  Jeez, at least I have 
time 
> > to budget for it.
> >
>