No, the failures appeared separately.

Thanks,
Philippe

Hi Karl,

Many thanks for the suggestions. I'll try it tonight and let you know.

Best regards,
Philippe

Hello Phillipe,

Look at the Bypass capacitors "Cx49" that each voice feeds into.
It's toward the front of the board.
C649 = Voice 2
C549 = Voice 3

It's a 2.2 uF. That I have seen fail from time to time. This will
block signal from getting out of the voice.

If you have an oscilloscope...
1) Turn all voices off but the one you are trying to fix, in the
master page.
2) Turn the VCA2 All the way up so it is constantly playing.
3) Look at the signal on the + side of the cap. If you have a
waveform signal then the voice is good.
4) Look on the other side of the capacitor, if there is no signal
Replace The Cap.

5) If you have no signal on the + side of the cap try the output op-
amp Ux16 a TLO81
Good Luck and let me know how it goes.
Karl



--- In xpantastic@..., "philipperyckman" <caractere@...>
wrote:

Hi everybody,
Can anyone help me ? I've got this voice problem with my Xpander:
on voices 2 and 3, the 2nd VCO doesn't work, and it's NOT the 3374
nor the filters. I've changed them all. I'm starting to think that

it

must be some digital control over the analog voices that is failing.
Is there someone who has had this kind of problem? I'll be grateful
for any suggestion.
Thanks to everybody,
Philippe

Hi everybody,
Can anyone help me ? I've got this voice problem with my Xpander:
on voices 2 and 3, the 2nd VCO doesn't work, and it's NOT the 3374
nor the filters. I've changed them all. I'm starting to think that it
must be some digital control over the analog voices that is failing.
Is there someone who has had this kind of problem? I'll be grateful
for any suggestion.
Thanks to everybody,
Philippe

Rhodes were cool, liked the pads the best, very nice.

Randy

Hi All,

Ok, Sorry I checked the Digi-Key Websites in Netherlands,
Belguim,France,and spain to no avail. It seems the only place Digi-
Key stocks these batteries is the US. Part Number P226-ND.
I do not know anything about international shipping, but If you guys
can help me on this matter I would be willing to aquire these
batteries and ship them to you. I guess I could get a paypal account
to deal with the costs. It also looks like there may be some ROHS
issues "the batteries are made of Lithium".

Karl

--- In xpantastic@..., "Karl" <shire03@...> wrote:

Hey All,

Tell you what, You can buy brand new versions of this battery from
a company called Digi-Key. They are on the web Digi-Key.com and have
distribution in Europe, US, and I think Far East. I have done
business with them for years and they usually have great service

and

stock. The only problem is the $25.00 min "US" order. What we

should

do is buy several. I would happily do this for the US guys. I would
for Europe too, but I think shpping to Europe would make any

savings

on cost moot.

Karl

--- In xpantastic@..., PeWe <ha-pewe@> wrote:

Hi !

I think this will work ...

Sequential_W0QQitemZ250282414876QQcmdZViewItem?
hash=item250282414876&_trkparms=72%3A823%7C39%3A1%7C66%3A2%7C65%

3A12%

7C240%3A1318&_trksid=p3911.c0.m14

ebay item 250282414876

contact the ebay shop, - if it?s 3volts, it?s o.k. IMO

PeWe

synthesizeuhr schrieb:

Thanks
Perhaps it's safest to make a change soon since the Xpander is

+20

years by now, what
type of battery can be used as replacement?

Hey All,

Tell you what, You can buy brand new versions of this battery from
a company called Digi-Key. They are on the web Digi-Key.com and have
distribution in Europe, US, and I think Far East. I have done
business with them for years and they usually have great service and
stock. The only problem is the $25.00 min "US" order. What we should
do is buy several. I would happily do this for the US guys. I would
for Europe too, but I think shpping to Europe would make any savings
on cost moot.

Karl

--- In xpantastic@..., PeWe <ha-pewe@...> wrote:

Hi !

I think this will work ...

Sequential_W0QQitemZ250282414876QQcmdZViewItem?
hash=item250282414876&_trkparms=72%3A823%7C39%3A1%7C66%3A2%7C65%3A12%
7C240%3A1318&_trksid=p3911.c0.m14

ebay item 250282414876

contact the ebay shop, - if it?s 3volts, it?s o.k. IMO

PeWe

synthesizeuhr schrieb:

Thanks
Perhaps it's safest to make a change soon since the Xpander is

+20

years by now, what
type of battery can be used as replacement?

开云体育

Hi !

I think this will work ...


ebay item 250282414876

contact the ebay shop, - if it?s 3volts, it?s o.k. IMO

PeWe

synthesizeuhr schrieb:

Karl schrieb:

--- In xpantastic@...
<mailto:xpantastic%40yahoogroups.com>, "synthesizeuhr"
<synthesizeuhr@> wrote:


Common wisdom is to change your backup batteries every 10 Years.
I have never changed mine, And It is still working.

I changed mine 1x in 20 years so that?s right. The 2nd battery is still
working here since then, no leakage.

.

Thanks
Perhaps it's safest to make a change soon since the Xpander is +20 years by now, what
type of battery can be used as replacement?

开云体育

Hi !

>>>

Karl schrieb:

--- In xpantastic@yahoogroups.com, "synthesizeuhr"
...> wrote:


Common wisdom is to change your backup batteries every 10 Years.
I have never changed mine, And It is still working.

I changed mine 1x in 20 years so that?s right. The 2nd battery is still working here since then, no leakage.

.

Sorry, taintlien. I now see you ar eonly looking for the screws, not
the end bells themselves.


On Sun, Aug 17, 2008 at 5:49 PM, taintlien
<project_sensorium@...> wrote:

Can anyone point me in the right direction to an exact match for the
black (antiqued) looking screws and finish washers that fasten the end
bells to the xpander?

Someone on Analogue Heaven made replacement bells, but they were meant
to position the Xpander as if it were a desktop/rack mount unit.
I dont have any info, but googling may help, or subscribing to Analog
Heaven. That person may also have stock replacement end bells as well.


On Sun, Aug 17, 2008 at 5:49 PM, taintlien
<project_sensorium@...> wrote:

Can anyone point me in the right direction to an exact match for the
black (antiqued) looking screws and finish washers that fasten the end
bells to the xpander?

On the OB8 if you loose the battery, you loose the calibration values,
and need to do the cal over.
You need a 4 digit voltmeter for the cal, although you might be able
to get away with a 3 digit voltmeter.

Can anyone point me in the right direction to an exact match for the
black (antiqued) looking screws and finish washers that fasten the end
bells to the xpander?

Karl wrote:

--- In xpantastic@..., Jeremy Smith <jeremy@...> wrote:

Karl wrote:

Hi All,

Can anyone tell Me How Many Matrix 12 or Expanders were made? I

have

never been able to find this out.

Karl


------------------------------------

Yahoo! Groups Links

2000 Xpander's:



Matrix 12 unknown:



Jeremy.

Thanks Jeremy,
How's the Toccata doing?

Karl

Hi,

Hasn't arrived yet! It must be going by surface mail or something.

Jeremy

--- In xpantastic@..., "synthesizeuhr"
<synthesizeuhr@...> wrote:

I recently checked my battery and it still looked like new but it

could be disastrous if the

damed thing started to leek someday.

Has anyone done a battery change yet on their Xpanders/M12?

Hello There Synthesizeuhr,

Common wisdom is to change your backup batteries every 10 Years.
I have never changed mine, And It is still working. I notice If
you put it in storage and don't turn it on for sme time (6 months)
some patches start to fade away. Or just become Init patches.

I have not seen that brand of battery leak before. Usually a bunch
of white crystals just form at one end. But I have seen many Korg
Polysix's become almost un-repairable because of the battery leaking
on the circuit board, and then the circuit traces disolve.

Karl

--- In xpantastic@..., Jeremy Smith <jeremy@...> wrote:

Karl wrote:

Hi All,

Can anyone tell Me How Many Matrix 12 or Expanders were made? I

have

never been able to find this out.

Karl


------------------------------------

Yahoo! Groups Links

2000 Xpander's:



Matrix 12 unknown:



Jeremy.

Thanks Jeremy,
How's the Toccata doing?

Karl

I recently checked my battery and it still looked like new but it could be disastrous if the
damed thing started to leek someday.

Has anyone done a battery change yet on their Xpanders/M12?