Patches and discussion for Ensoniq VFX family

b_j_glover wrote:
> Thanks for the advice. What I'm planning to do is create the 12 
> connections across the back of the board, as shown in the "VFX Cal 
> Error Repair" document in the files section:
> 
> http://f1.grp.yahoofs.com/v1/MIkqSdiPWBaEZD0ruTF8BSM6fG-
> NDq96QzI2CPFPmNjmoM7_5ojS1QhYq-IYq4Ry-dPLXTHKfRoY4VR111bNUpKoT3QL--
> Y/Tools%20and%20service/Poly%20board%20separation%20fix/VFX%20Cal%
> 20Error%20Repair.pdf
> 
> But my problem is that I can't tell from the illustration what's 
> going on at the top of the picture. On my VFX, it looks as though the 
> connection points on at least one side (left or right) are joined 
> together on the PCB itself at the top. The top two on each side are 
> certainly joined by a blob of solder at the moment, and I'm wondering 
> if they do indeed need to be separated. (I'm only talking about one 
> surface here.)
>

I can only count 11 wires on that diagram.  I can't get at my VFX to 
take it apart at the moment, but perhaps someone else can wade in here. 
  When I checked my old VFX-SD the job had already been done so I closed 
it up without thinking any more about it, and that was around eight 
years ago.

Gordon