The Kawai & Teisco Analog Synths Group

Hi,
I have an sx210 that has been doing fine for a few years now.  I have
read all the warnings about having the battery changed, but have not
taken care of that yet.  It's been in my studio, unmoved and operating
fine, until I took it to my rehearsal space a few weeks ago.  When I
powered it up there, all patches but one in the first bank were
unnamed, and seemed to have reverted to default values for all
parameters.  The other banks have been fine.  I opened up the keyboard
last night to check the battery, and there are no signs of corrosion.
 I plan on changing the battery anyway, but I am not confident that
this is the problem.  The keyboard was jostled a bit during transport
to the rehearsal space.  Does anyone have any recommendations for
troubleshooting this problem other than battery replacement?  Also, I
remember reading about what kind of battery (and resistor?) to replace
the ni-cad with somewhere, but I can't seem to find it again.  Anyone
have any tips there?  Thanks very much for any help.
Brian

--- In kawai_sx210@yahoogroups.com, "bmurch71" <bitsnrather@...> wrote:
>I recall in the manual, that if the synth is not plugged in for over
a month, there is a risk of losing the data memory.

> Hi,
> I have an sx210 that has been doing fine for a few years now.  I have
> read all the warnings about having the battery changed, but have not
> taken care of that yet.  It's been in my studio, unmoved and operating
> fine, until I took it to my rehearsal space a few weeks ago.  When I
> powered it up there, all patches but one in the first bank were
> unnamed, and seemed to have reverted to default values for all
> parameters.  The other banks have been fine.  I opened up the keyboard
> last night to check the battery, and there are no signs of corrosion.
>  I plan on changing the battery anyway, but I am not confident that
> this is the problem.  The keyboard was jostled a bit during transport
> to the rehearsal space.  Does anyone have any recommendations for
> troubleshooting this problem other than battery replacement?  Also, I
> remember reading about what kind of battery (and resistor?) to replace
> the ni-cad with somewhere, but I can't seem to find it again.  Anyone
> have any tips there?  Thanks very much for any help.
> Brian
>

--- In kawai_sx210@yahoogroups.com, "bmurch71" <bitsnrather@...> wrote:
P. S.

I used an equivalent radioshack cell phone battery with wire extention
to side and it works fine.

>
> Hi,
> I have an sx210 that has been doing fine for a few years now.  I have
> read all the warnings about having the battery changed, but have not
> taken care of that yet.  It's been in my studio, unmoved and operating
> fine, until I took it to my rehearsal space a few weeks ago.  When I
> powered it up there, all patches but one in the first bank were
> unnamed, and seemed to have reverted to default values for all
> parameters.  The other banks have been fine.  I opened up the keyboard
> last night to check the battery, and there are no signs of corrosion.
>  I plan on changing the battery anyway, but I am not confident that
> this is the problem.  The keyboard was jostled a bit during transport
> to the rehearsal space.  Does anyone have any recommendations for
> troubleshooting this problem other than battery replacement?  Also, I
> remember reading about what kind of battery (and resistor?) to replace
> the ni-cad with somewhere, but I can't seem to find it again.  Anyone
> have any tips there?  Thanks very much for any help.
> Brian
>

I recommend converting to Lithium which is a very simple procedure


--- In kawai_sx210@yahoogroups.com, "texhand" <texhand@...> wrote:
>
> --- In kawai_sx210@yahoogroups.com, "bmurch71" <bitsnrather@> wrote:
> P. S.
> 
> I used an equivalent radioshack cell phone battery with wire 
extention
> to side and it works fine.
> 
> 
> >
> > Hi,
> > I have an sx210 that has been doing fine for a few years now.  I 
have
> > read all the warnings about having the battery changed, but have 
not
> > taken care of that yet.  It's been in my studio, unmoved and 
operating
> > fine, until I took it to my rehearsal space a few weeks ago.  
When I
> > powered it up there, all patches but one in the first bank were
> > unnamed, and seemed to have reverted to default values for all
> > parameters.  The other banks have been fine.  I opened up the 
keyboard
> > last night to check the battery, and there are no signs of 
corrosion.
> >  I plan on changing the battery anyway, but I am not confident 
that
> > this is the problem.  The keyboard was jostled a bit during 
transport
> > to the rehearsal space.  Does anyone have any recommendations for
> > troubleshooting this problem other than battery replacement?  
Also, I
> > remember reading about what kind of battery (and resistor?) to 
replace
> > the ni-cad with somewhere, but I can't seem to find it again.  
Anyone

> > have any tips there?  Thanks very much for any help.
> > Brian
> >
>

Random banks of patches disappearing is a sign of pcb damage. You re having memory problems because of a high resistance solder joint and/or trace. This is

Not just plugged in, but turned on also. Power needs to be on to recharge the battery ;) ... From: texhand To: kawai_sx210@yahoogroups.com Subject: