[sdiy] problematic sh101

[Metrophage]

Ah, it's Dave!
Indeed, I was just showing to my wife the online photos of your
tricked-out DR-110s! The PCBs on those I've had had not been quite so
bad as that. This one looked perfect, but had about two square inches
of battery corrosion. One trace near the DC jack had about 1.5 inch
completely burned off! To my amazement I just jumpered it and it worked
fine. No other problems with the PCB, the cap was  the tallest thing
there, got bonked the wrong way. 

I will probably try to score another cheap 110 to rack mount, so I can
do individual outs, trigger i/o, MIDI>trigger, pots and CV inputs,
maybe an LFO and simple envelope generators. The circuits are easy
enough to make from scratch, but with the sequencer and display it's
great for cheap "electro" sounding drum sounds. I did mostly the same
mods that you have on your pages, except for some different pot values,
and switchable envelope caps - all on a little box which extends the
left side of my 110 about  2".

As for SH-101... if there's enough room in there for panel-mount DC and
headphone jacks, among others, would save it a lot of strain!

CJ

--- Dave Magnuson <resfreq at hoohahrecords.com> wrote:
> I know this problem all to well... I severely hacked up a pair of
DR-110s, and it > has the absolute worst PCB quality of any machine
I've ever worked on.  If you
> look at the traces funny they seem to pop off.  Every wire that you
fly off the 
> circuit board needs to be thoroughly supported or the tiniest bit of
movement 
> will tear a pad off.  It was a true lesson in patience.... I actually
want to add
> more modifications to the DR-110, but it's such a pain that I may not
ever do 
> it...
> 
> I haven't really had this problem with my SH-101, but it's certainly 
> possible.  The '101 boards aren't exactly "industrial quality"  :)
> 
> Dave
> 
> Resonant Frequency:
> resfreq at hoohahrecords.com
> http://www.hoohahrecords.com/resfreq/index.html
> 



		
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