Vintage Synth Repair

Common man.... you just found a midi equipped JP8 !!! Grab it before 
it's too late !!!




--- In vintagesynthrepair@yahoogroups.com, "easterleggs" 
<milotoll@...> wrote:
>
> Hi, group.
> 
> I was fortunate enough to acquire a Roland Jupiter 8 w/Encore MIDI
> recently.  I've determined that it is the 12 bit version with 
variable
> split point.  (serial 120978)  Do the first two digits of the serial
> number refer to month (1 = January) and year (2= 1982)?  Assuming 
the
> numbering started at 0100 for the remaining four digits, would it be
> reasonable to assume mine is the 878th unit?
> 
> Also, what is the procedure for updating the D/A converter to 14 
bit?
>  Is it as simple as replacing the 12 bit DAC or will it require more
> extensive modification?
> 
> Last, it is in need of calibration as there are some slight tuning 
and
> level variations among the voices.  Does the JP-8 have a 'voice
> defeat' feature so I can effectively mute the bad voices until I can
> calibrate it?  I saw no mention of it in the manual.
> 
> Any other information on this particular version or any tips and
> tricks would be appreciated!
> 
> Thanks,
> Stephen
>