Xpantastic!

ok, thanks Tobbe!

 
Bakis 


________________________________
 From: Tobbe Bergman <tobbebergman@...>
To: xpantastic@yahoogroups.com 
Sent: Saturday, January 28, 2012 4:04 PM
Subject: Re: [xpantastic] hello everyone, Xpander problem, help is needed...
 

  
It fixed Voice 6 when I had the identical problem on my Xpander !






2012/1/28 Bakis Sirros <synth_freak_2000@...>

 
>  
>thanks Guys for all your help!     :-)
>
>
>one more question: will the capacitors change fix the very very low output volume (its barely hearable) of voice 5 ?
>
>
>or this is yet another problem of the xpander?
>
>
>thanks,
>best regards,
>Bakis.
>
>
>
>
> 
>Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist 
>[Doepfer_a100] group owner 
>
>www. parallel - worlds - music. com
>www. facebook. com/ pages/Parallel-Worlds/192093934136476
>www. myspace. com/ parallelworldsmusic 
>
>www. myspace. com/ interconnectedmusic
>www. myspace. com/ memorygeist 
>
>www. DiN. org. uk 
>
>www. musicamaximamagnetica. com
>www. vu-us. com
>
>
>________________________________
> From: Karl Schmeer <shire03@...>
>To: xpantastic@yahoogroups.com 
>Sent: Saturday, January 28, 2012 6:25 AM
>Subject: Re: [xpantastic] hello everyone, Xpander problem, help is needed...
> 
>
>
>  
>Hello Bakis,
>
>The other posters have it right. You should replace the coupling caps. 
>Specifically I would replace C549  on voice 5.  
>
>This part fails often, and causes tuning fails.  BTW It must have the 50VDC 
>rating or it won't work.
>
>Actually I would change all Cx49 parts (x = voice number), because it sounds as 
>if Voice 1 may have this problem also.
>
>However, this does not address the bleedthrough problem you mention on the 
>direct out of voice 5.
>I have an M12 so I have no direct outs, and can't really comment on this.  
>
>Best Luck
>
>Karl 
>
>________________________________
>From: Bakis Sirros <synth_freak_2000@...>
>To: Xpantastic group <xpantastic@yahoogroups.com>
>Sent: Fri, January 27, 2012 2:30:18 PM
>Subject: [xpantastic] hello everyone, Xpander problem, help is needed...
>
>  
>hi everyone,
>
>new member here, my Name is Bakis.
>
>recently bought an Xpander and have the following problem:
>
>works and sounds great...  ...apart from voice 5, which, after its shipping to 
>me, does not pass the auto tune test.
> 
>sometimes the 'PW' section of it fails, sometimes the Res section fails, 
>sometimes all the sections of voice 5 fail (except the vca section of voice 5 
>that never fails). 
>
> 
>even if i activate the problematic voice, after its been automatically shut off 
>by the Xpander OS, it sounds a bit different from the others in filter tone and 
>tuning (of course, as it cannot be tuned,) and very very low in volume. 
>
>another weird thing i noticed: when i direct voice 5 in its 'direct' output 5, 
>then, from this output, i can hear all of the xpander voices (together with 
>voice 5) but very low in volume. 
>
>all the other direct outputs work as they should, for all the other voices.
> 
>i performed software reset, re-sitted all ribbon cables and all of the chips in 
>the voice 5 section of the xpander voiceboard without success,
>i also performed all the tests for the xpander (memory, vmemory, etc...) and all 
>
>are ok, afaik. 
>
>plus i re-sitted chip U106 which is responsible for the panning output section 
>of voice 5 (after studying the service manual).
>
>also, i swapped both CEM3374 and CEM3372 of voice 5 with another working voice 
>chips (voice 6) and still the fault appears on voice 5. so, both the CEM chips 
>are Not the problem... 
>
>and i swapped ALL of the chips of voice 5 with the chips of voice 6 and still 
>the same problem appears on voice 5. 
>
>so ALL the chips in the voice 5 section are ok for sure.
>
>and, after hitting tuning many many times and hitting tuning while the machine 
>was at various different presets, i noticed that thing:
>when the machine was autotuning and it was in a preset that was very complex 
>with lots of modulations and vco modulation as well, then voice 5 failed in the 
>vco tuning as well, (and, at one time, vco 1 failed!). 
>
>when the machine was autotuning, while it was in a simpler sound preset (some 
>brass or synthlead...), then the voice 5 only failed in PWM and maybe Res... but 
>
>it passed vco tuning....!! 
>
>so maybe its a problem in another board of the machine (like the CPU) and not in 
>
>the voice 5 board ?
> 
>maybe this indicates that i should re-sit the chips in the main CPU /memory 
>board as well?? do you think i should take the time and re-sit all the chips in 
>the CPU board? would it make sense?
> 
>(do you think a 'HARD Reset' may fix the problem? how do i do this?)
>
>is there anything specific i should check? everything seems connected.... i 
>cannot resit ALL the chips in all boards obviously... but maybe i should resit a 
>
>specific chip from another section of the xpander boards....? any ideas / help?
> 
>i really do not want to break anything inside the Xpander (i do not want to use 
>a soldering iron, after all, everything seems in place), but i can remove and 
>easily re-sit a specific chip or two, if needed of course....
> 
>btw, the seller is very honest and he insisted that the machine worked fine (all 
>
>6 voices) before shipping, and i believe him..
>
>thanks for all your help in advance!
>
>best regards,      :-)
>Bakis.
>
>Bakis Sirros - Parallel Worlds / Interconnected / Memory Geist 
>
>[Doepfer_a100] group owner 
>
>www. parallel - worlds - music. com 
>
>www. facebook. com/ pages/Parallel-Worlds/192093934136476 
>
>www. myspace. com/ parallelworldsmusic 
>
>www. myspace. com/ interconnectedmusic 
>
>www. myspace. com/ memorygeist www. DiN. org. uk www. musicamaximamagnetica. com 
>
>www. vu-us. com
>
>
>
>