Yamaha DTXpress/DTXplorer/DTXtreme

--- In DTXpress@yahoogroups.com, "emf" <liberatusvirus@y...> wrote:
> --- In DTXpress@yahoogroups.com, "Jackie Harkins" 
> <jackieharkins@y...> wrote:
> > I[m trying find out if any one else is having problems with their 
> KP 
> > 60 base module dropping at different times,  I've tried a soft 
> > beater then went to a hard one and I'm getting the same results
> 
> Hi Jackie,
> 
> You have stumbled onto one of the most common and aggravating 
> problems with the early DTXpress kit; the archives of this forum
are 
> littered with it. The KP60 simply did not perform well. Mine 
> misbehaved just like yours. I talked to Yamaha about it, opened it 
> up, and re-soldered every connection in sight--all to no avail. 
> Yamaha was very accommodating, sending me a brand new one, but the 
> new one wasn't satisfactory either.  Rather than go through the 
> frustrating process of reconstructing it, I simply switched to 
> another brand. I thought that the unit as a whole was a flawed
design.
> 
> You can try the re-soldering process; 

I may be wrong - I haven't seen the piezos inside the drum pads, but
if you are planning to solder to them it may be wise to use a solder
with some silver in it.  I read somewhere that where the electrodes
are silver (rather than nickel) then using just a lead/tin sodler can
remove the silver plating.  I can confirm this is true because I have
seen the plating disappear when I used ordinary solder! (but not on an
e-drum).

Keith.