----- Original Message -----From: chris_i_rollandSent: Wednesday, August 18, 2010 10:37 AMSubject: [Ensoniq-VFX-SD] Digital crapulence!Like many here I am on my "second" VFX, having sold the first one (which I bought about a week after it arrived in the UK) like an idiot when I got a Korg O1-W pro; a decision which which was swiftly followed by many self-inflicted leg injuries. I've had VFX #2 for over 15 years now, and did the ROM upgrades, battery changes, keyboard "fix" etc. happily with my moderate electronic and soldering skillz. However recently the VFX has developed a serious problems and I'm praying it isn't terminal.
With certain sounds, when the sound decays after key up (and sometimes depending on the sound during sustain - yes this is very sound depandant) I get a lot of digital degredation of the sound almost like the DSP is dropping bits off the DAC (think like when your mobile phone starts scrambling to sound and you get the idea) . . . very bad. I'm hoping someone here will say "oh yeah, just replace this capacitor" or something but I fear the DSP chip has gone bad.
To give context I still own this despite having a Motif XS, a Nord Stage EX, and a Roland V-Synth GT; I still crave a ZR-76 though they are practically non-existant here in the UK and if my VFX dies I WILL cry (although finding another one, or even an SD-1 probably won't be too hard). Please help keep my VFX alive!
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Re: [Ensoniq-VFX-SD] Digital crapulence!
2010-08-18 by jammie
change the caps on the dac first as they act
as smothers for the analog waves then chen the buffering opams in the next stage
of the circuit these are tlo72 opmps an are used to smoth the dac output even
more before going to a line level opamp
do you have the same noise in the earphones out put
if not then its the buffering stage