Disklavier

My odyssey has finally come to end today....  I ponied up the $380 
and had the display replaced by a technician.  There was a capacitor 
with some broken solder connections.  I purchased the piano used 
several months ago (everything worked).  My theory is that during the 
move (Piano Moving Inc.), the piano most likely was shaken and the 
soldered joints simply broke.  I think its important to note this 
because I wouldn't want to give anyone the impression that these 
boards just up and die (piano is over ten years old).

Thanks to all who have messaged on this topic!  



--- In disklavier@yahoogroups.com, "midiacc2002" <BSchmidt@...> wrote:
>
> For me removing of the board was not complicate. This depends on 
your
> own personally experience with such things. To remove the board you 
> only have to loose appr. 20 screws, two connectors and some cable
> binder (I don't know the right word). Repairing of the corroded 
solder
> strip was a little challenging cause of the very small dimensions.
> 
> 
> Bernhard
> 
> 
> 
> --- In disklavier@yahoogroups.com, "yadidisklavier"
> <yadidisklavier@> wrote:
> >
> > 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.
> > > >
> > >
> >
>