Patches and discussion for Ensoniq VFX family

Hi, thought it was you! cool


>However, in terms of failure rates, the transfomer has a lower 
>probablity of failure than any of the other active components or 
>electrolytic capacitors in the power supply.


Well like you say the transformer might well be ok, more likely the 
caps and / or voltage regulators failing if its PSU related..


>Have you had a chance to measure the power supply outputs with a 
>meter to see if they are at the correct voltage?


No not yet.. There should be +5VDC x 2 (digital and display) +/- 12V 
DC and 9+9VAC (for display)


> What are the symptoms of your VFX?  


Well i hadn't turned on it for 3 years after my last house move. Its 
been sitting there covered up.
It booted up ok!! (i was amazed at that..) but then i started getting 
loud pops at intervals but only seemed to appear on the lefthand side.
Also theres some low level distortion in the release phase of the 
ADSR. (both channels)
Reseting didnt help.
There was a problem with it i noticed when i first got it in that on 
a bass patch for example i would get a click at the start of the 
attack phase. Looking at it on a scope it looked as if it was 
starting a bit into waveform and clipped off at the bottom.
Increasing the attck time improved things but then it wasnt any good 
for bass! (i did check all the parameters related to patch as well)
I tryed to get the latest O/S for it with i got V2.10 but it didnt 
like it for some reason (maybe it was for the SD? or is that flash 
based?? from disk???) It made it to the default screen then locked up.
Theres V1.65 in there so it must be riddled with bugs..
I need to get in into work were all my test gear is setup in the 
workshop and get stuck in there.. maybe next week...
First stop is the PSU and then the D/A part of the synth.
Oh.. and the 10 bank select buttons have broken under the display, 
need gluing or something
Any other ideas?
Cheers
Gonz