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Matrix 6 Aftertouch

Matrix 6 Aftertouch

2015-03-26 by hoggybogger@...

I have a Matrix 6 and just realized my aftertouch is not working. I haven't opened this up to delve in to it just yet, I am wondering if anyone else has run in to this issue and had any luck repairing it?

I didn't realize the Matrix 6 even had aftertouch until I connected a generic keyboard controller to the midi in and played some things. I couldn't believe the difference, amazing filter control and all sorts of neat things coming out of my Matrix 6 that I never knew were 'supposed' to be happening when I pressed the key down harder.

If anyone has any tips on troubleshooting or repairing the aftertouch on a Matrix 6 I would appreciate it.

Thanks!

Re: [oberheim] Matrix 6 Aftertouch

2015-03-27 by Bob Grieb

Looks like the pressure sensor connects to U17, which is probably a 556.with an ohmmeter you should be able to unplug it from the processor boardand measure the resistance as you press down on a key.   I think the pressure sensorsfail after a while on lots of keyboards from this era.   Shouldn't be too hard to 
replace.   You can adjust the resistor values around U17 if nec to get the desired action.
   Bob
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      From: "hoggybogger@... [oberheim]" <oberheim@yahoogroups.com>
 To: oberheim@yahoogroups.com 
 Sent: Thursday, March 26, 2015 7:51 PM
 Subject: [oberheim] Matrix 6 Aftertouch
   
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I have a Matrix 6 and just realized my aftertouch is not working. I haven't opened this up to delve in to it just yet, I am wondering if anyone else has run in to this issue and had any luck repairing it? 
I didn't realize the Matrix 6 even had aftertouch until I connected a generic keyboard controller to the midi in and played some things. I couldn't believe the difference, amazing filter control and all sorts of neat things coming out of my Matrix 6 that I never knew were 'supposed' to be happening when I pressed the key down harder. 
If anyone has any tips on troubleshooting or repairing the aftertouch on a Matrix 6 I would appreciate it.
Thanks!

Re: [oberheim] Matrix 6 Aftertouch

2015-03-28 by Alexander Kytasty

Hi! I purchased a used M6 with non-functioning AT. In my case, something heavy had been dropped onto the keys and the long sensor strip under the front of the keys had a visible dent. The solution was to order a replacement strip from Syntaur in TX. Simple plug in installation, no soldering required. Good Luck! Alex K., Michigan --------------------------------------------


 On Thu, 3/26/15, hoggybogger@... [oberheim] <oberheim@yahoogroups.com> wrote: Subject: [oberheim] Matrix 6 Aftertouch To: oberheim@yahoogroups.com Date: Thursday, March 26, 2015, 7:51 PM   I have a Matrix 6 and just realized my aftertouch is not working. I haven't opened this up to delve in to it just yet, I am wondering if anyone else has run in to this issue and had any luck repairing it?  I didn't realize the Matrix 6 even had aftertouch until I connected a generic keyboard controller to the midi in and played some things. I couldn't believe the difference, amazing filter control and all sorts of neat things coming out of my Matrix 6 that I never knew were 'supposed' to be happening when I pressed the key down harder.  If anyone has any tips on troubleshooting or repairing the aftertouch on a Matrix 6 I would appreciate it. Thanks!

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