Patches and discussion for Ensoniq VFX family

Thanks for your reply Steve,

OK, I dissmantled the keyboard - removed all the keys.
It has the multi-ribbon installed connecting the two boards. Looks
like a factory-fit. I re-soldered all the points on the cable but I
still get the same error message... "calibration error, keyboard not
recognized"

Do I have to replace all keys before checking again - or can I test it
without doing so? Should it 'calibrate' without the keys in place..?

What next..? Has anyone here had component failure on the keyboard
boards..?

Thanks again,
Tom



--- In Ensoniq-VFX-SD@yahoogroups.com, Steve Wahl <steve@...> wrote:
>
> > 
> > Thing that worries me is that this is the newer SD1, which supposedly 
> > had all that fixed - no...?!?
> 
> I happen to remember the history.  They THOUGHT they had the problem
> licked, and renamed the keyboard (I've always assumed that it's the
> SD1 and not the VFX-SD III because they changed the name to avoid the
> reputation of unreliability of the VFX).  
> 
> But they didn't get to the real bottom of the problem until after the
> SD1 had shiped for some time (6 months?).
> 
> That said, I have a VFX-SD that I bought used, cheaply beacuse it had
> keyboard calibration problems.  I thought I knew what was wrong, but
> to my chagrin I discovered that the keyboard had already been
> hardwired when I opened it up.  
> 
> However, I re-flowed the solder on the hardwiring work, and cleaned up
> the remaining connectors in the keyboard assembly.  After that, it has
> functioned perfectly for years (over 10 years, I think).
> 
> So, anyway, your problem could be oxidation on the connectors that
> still remain after the hardwired keyboard mod.  Have someone you trust
> with this sort of thing (only you know if you yourself are qualified!)
> take it apart and clean the connectors.
> 
> --> Steve