Author |
Message |
XpanderXT
Joined: Oct 22, 2007 Posts: 137 Location: the flat universe
|
Posted: Mon Feb 25, 2008 6:08 pm Post subject:
Akai AX80 service manual |
|
|
Anyone know where I might be able to download or get a copy of an AX80 service manual?
I just got an AX80 and need to fix a dead voice. It also has the famous 'right hand buttons' not working thing but that is an easy fix.
I would love to find the calibration routine for the unit too so I can get it tweeked out.
thanks, |
|
Back to top
|
|
|
FredM
Joined: Nov 17, 2007 Posts: 2 Location: U.K.
|
Posted: Wed Feb 27, 2008 11:41 pm Post subject:
|
|
|
I believe the AX73 voice circuit is similar or identical. Service manuals for AX73 are available (if you really cannot get one, I could scan some pages from mine for you). |
|
Back to top
|
|
|
XpanderXT
Joined: Oct 22, 2007 Posts: 137 Location: the flat universe
|
Posted: Thu Feb 28, 2008 8:05 am Post subject:
|
|
|
thanks for the offer. I found a service manual. |
|
Back to top
|
|
|
MrSlippery
Joined: Apr 10, 2008 Posts: 1 Location: midwest usa
|
Posted: Fri Apr 11, 2008 12:03 am Post subject:
|
|
|
I have just picked up an ax80 from a friend who lost interest in it. I am having a blast with it, but there are about 6 dead keys that I would like to fix. Any information / schematics could really help me out. |
|
Back to top
|
|
|
ar2jr
Joined: Mar 29, 2008 Posts: 88 Location: San Francisco
Audio files: 1
|
Posted: Thu Apr 17, 2008 12:33 am Post subject:
|
|
|
i too have an ax80 that needs some work. what exactly is the famous right hand controls problem as that's one problem with mine.
-matia |
|
Back to top
|
|
|
ar2jr
Joined: Mar 29, 2008 Posts: 88 Location: San Francisco
Audio files: 1
|
Posted: Fri May 09, 2008 9:48 am Post subject:
|
|
|
anyone? |
|
Back to top
|
|
|
Dego
Joined: Apr 22, 2008 Posts: 139 Location: Sweden
|
Posted: Mon Dec 01, 2008 5:30 am Post subject:
|
|
|
Anyone got the AX-73 service manual? I need to change the sliding potientometers on my AX-73. Does anyone know what values they are? |
|
Back to top
|
|
|
sounddoctorin
Joined: May 09, 2009 Posts: 4 Location: Bozeman, MT
|
Posted: Sat May 09, 2009 4:36 pm Post subject:
|
|
|
The AX80 is no relation to the other AX series. It has only saw cores digitally controlled it appears. haven't seen the schematic but have examined the board. No transistor pairs heat sunk together, no vco chips etc. Just the CEM3372 VCF and an op amp and a couple transistors discrete per channel so not VCO based for sure. (And no auto-tune). The other AX's do have auto-tune because they use the CEM3394 synth on a chip with real VCO inside. Akai confused everyone by starting out with dco's and went to vco's afterward.
I have a VX-90 I was looking for schematics for. It's the rack of the AX-73 that I have on ebay at the moment. Figure I'll get the rack working and I really don't need another big keyboard around. hehe. No sign of manual so far.. if anyone knows drop me a line. -Bob |
|
Back to top
|
|
|
Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
|
Posted: Mon Jan 07, 2013 10:05 am Post subject:
|
|
|
Anyone ever find one of these?
Id love a copy if poss
Many thanks, Ben |
|
Back to top
|
|
|
sounddoctorin
Joined: May 09, 2009 Posts: 4 Location: Bozeman, MT
|
Posted: Mon Jan 07, 2013 12:00 pm Post subject:
|
|
|
Paradigm X wrote: | Anyone ever find one of these?
Id love a copy if poss
Many thanks, Ben |
I finally purchased a copy. If you have some specific question just contact me and I can check it out for you. |
|
Back to top
|
|
|
Paradigm X
Joined: Feb 15, 2011 Posts: 363 Location: Null and void
Audio files: 2
|
Posted: Tue Jan 08, 2013 3:16 am Post subject:
|
|
|
Thanks, very kind.
It is actually working very well, i was just thinking about how easy it would be to add potentiometers for the filter cutoff and resonance, and possibly others. it looks reasonable from the cem3394 datasheet, but i dont want to start hacking away without a schematic.
If thats easy enough to scan and or post that would be great.
Thanks.
Ben |
|
Back to top
|
|
|
|