Xpantastic!

Hi all...

So I was given a very beat up Matrix 12 recently.  I thought it had
power supply issues because the fuse appeared to be fine.  For the
heck of it I bought a new one and sure enough...the old bird powered
right up.

So here is where I'm at...

The self-tuning feature shows that all tuning is failing.  

The keyboard has some stuck notes.  

The infinite rotary dials can be spotty.  

The displays are dim in some areas, though thankfully I can still see
all data.

Oh...and the clear plastic sheet over the graphics has gone cloudy
(unless wet) and the paint is worn down to bare aluminum above the
keyboard in some places...

I am thankful in advance of anyone able to offer some advice/assist in
bringing this awesome bird back to full health points.

Also...I read on one site that the keyboards on these are similar to
both the Kawai K3 and Akai AX80...is that true and can they be weighted?

Thanks!  Looking forward to hearing from tha group.

Peace.

Hi!

Probably the best compatible keyboards you'll find form Kurzweil and Roland.

Regarding the displays, I wonder if Matrix-12 could be fully controlled using a midi 
controller with knopfs like those from CME or Doeppfer. If so, that would solve The Broken 
Displays Problem!

What do you think of this idea, guys?!

Best regards,
Tiitu.

I have a Matrix-12 keyboard somewhere that I bought brand new but I
used a couple of the keys. I wonder if you can swap keys from your old
board to make it work? PM me if interested. 

--- In xpantastic@yahoogroups.com, "A" <thanksmalc@...> wrote:

>
> Hi all...
> 
> So I was given a very beat up Matrix 12 recently.  I thought it had
> power supply issues because the fuse appeared to be fine.  For the
> heck of it I bought a new one and sure enough...the old bird powered
> right up.
> 
> So here is where I'm at...
> 
> The self-tuning feature shows that all tuning is failing.  
> 
> The keyboard has some stuck notes.  
> 
> The infinite rotary dials can be spotty.  
> 
> The displays are dim in some areas, though thankfully I can still see
> all data.
> 
> Oh...and the clear plastic sheet over the graphics has gone cloudy
> (unless wet) and the paint is worn down to bare aluminum above the
> keyboard in some places...
> 
> I am thankful in advance of anyone able to offer some advice/assist in
> bringing this awesome bird back to full health points.
> 
> Also...I read on one site that the keyboards on these are similar to
> both the Kawai K3 and Akai AX80...is that true and can they be weighted?
> 
> Thanks!  Looking forward to hearing from tha group.
> 
> Peace.
>

Hi,

* As far as I know, Xpander and Matrix can echo thru MIDI SysEx each
panel operation, so I think it could be possible to remotely control
everything.
The issue is perhaps to really understand the logic for the order of
the differents sysex messages. I began few month ago to make a device
panel in Cubase SX but I gave up. Messages sent by a operation on a
single panel button can be different because they are linked to the
parameter being changed, and not the button itself. It was too
complex to implement something in Cubase with device panels.
 
* For the plastic sheet over the graphics that has gone cloudy, I have
the same issue with my Xpander, I was thinking of applying a kind of
polish over it, but I really fear to make more damages. Does anybody
tried this, and which kind of polish ? 

Regards,
Greg.

--- In xpantastic@yahoogroups.com, "envia94" <akva@...> wrote:
>
> Hi!
> 
> Probably the best compatible keyboards you'll find form Kurzweil and
Roland.
> 
> Regarding the displays, I wonder if Matrix-12 could be fully
controlled using a midi 
> controller with knopfs like those from CME or Doeppfer. If so, that
would solve The Broken 

> Displays Problem!
> 
> What do you think of this idea, guys?!
> 
> Best regards,
> Tiitu.
>

--- In xpantastic@yahoogroups.com, "cord_mueller" <xpander@...> wrote:
>
> I have a Matrix-12 keyboard somewhere that I bought brand new but I
> used a couple of the keys. I wonder if you can swap keys from your 
old
> board to make it work? PM me if interested. 
> 
> --- In xpantastic@yahoogroups.com, "A" <thanksmalc@> wrote:
> >
> > Hi all...
> > 
> > So I was given a very beat up Matrix 12 recently.  I thought it 
had
> > power supply issues because the fuse appeared to be fine.  For the
> > heck of it I bought a new one and sure enough...the old bird 
powered
> > right up.
> > 
> > So here is where I'm at...
> > 
> > The self-tuning feature shows that all tuning is failing. 

Did you try the DAC test/calibration stuff in the service manual?
 
> > 
> > The keyboard has some stuck notes. 

As in "stuck on?"  The M12 keyboard has the grey-metalized-rubber-
with-PC-board style keycontacts and can be cleaned very easily.  This 
is very easy to disassemble/reassemble.  I've had good success using 
91% rubbing alcohol from a supermarket and q-tips, although I'm sure 
there's a more pro solution.  Do you have stuck note problems using 
MIDI to control your M12 or just with keys? 

> > 
> > The infinite rotary dials can be spotty.  
> > 
> > The displays are dim in some areas, though thankfully I can still 
see
> > all data.

Did you try the section in the service manual for VFD voltage 
adjustment?

> > 
> > Oh...and the clear plastic sheet over the graphics has gone cloudy
> > (unless wet) and the paint is worn down to bare aluminum above the
> > keyboard in some places...

I think the display board is mounted on a hinge that allows easy 
access to the in-side of the plastic sheets, maybe wipe them off?

> > 
> > I am thankful in advance of anyone able to offer some 
advice/assist in
> > bringing this awesome bird back to full health points.

Good luck to you

> > 
> > Also...I read on one site that the keyboards on these are similar 
to
> > both the Kawai K3 and Akai AX80...is that true and can they be 
weighted?

I'd like to do that myself

> > 
> > Thanks!  Looking forward to hearing from tha group.
> > 
> > Peace.
> >
>