Success! I solder-tacked a little wire as you said on the unit that didn't have the solder blob, and it works! Thanks again.

No, I don't suspect that the modules left Doepfer in that condition -- it might have been something that happened with the U.S. distributor at that time, Douglas Wagner of Omaha, Nebraska.

Great, two problems solved. Now if anyone can help with my other query (in another thread), how to modify a 148 S&H to allow it to be triggered by the gate output of the 164-1 .... it is strange that these modules aren't compatible.

Thanks again, James!
Ernst

--- In Doepfer_a100@yahoogroups.com , James Husted <james.husted@...> wrote:
>
> Both my A-140 have a true header/jumpers in the upper left corner marked INT.GATE J1. When the jumper is installed the A-140 connects to the bus. If yours does not have the header then a wire soldered across the 2 pads should work. There is not current enough to make a short big enough to blacken the pads - sounds like a bad solder job by someone to me. Looks like you were sold used or store demo units for new, or one from a very early run of Doepfer PCBs - but I can not think of Dieter letting a unit go out like that, just not his style. Shorting those pads with a solder bridge would work in a pinch if you haven't any headers laying around to put there. It is easier to solder tack some buss wire on top of those pads than to bridge them with a blob of solder. You don't want to loosen the pads off the board with too much heat.
>
> -James
>
>
>
> On Jul 24, 2011, at 1:27 PM, E Karel wrote:
>
> > Thanks, James, that was it! Even though I've had this A-111 for about 13 years now, and bought it new, the jumper wasn't there. I added a jumper and now it reads the bus.
> >
> > I took a look at my two (also 13-year-old) A-140s to see if there was a similar jumper, since those also aren't reading gates from my new A-164-1. There's a place at the upper-right corner of the circuit board marked INT.GATE and J1, but there are no pins there to hold a jumper on either module.
> >
> > Very strangely, though -- strangely because I bought them both new in 1998 -- one of them has a solder blob on the back connecting the two points, and one of them doesn't. I would think the one with the solder bridge should read the bus, but it doesn't. It looks slightly blackened/burnt under the solder.
> >
> > So, given this, any recommendations Should I try adding a solder bridge to the one that currently doesn't have one
> >
> > Ernst
> >
> >
> >
> >
> > --- In Doepfer_a100@yahoogroups.com , James Husted <james.husted@> wrote:
> >>
> >
> >> Did you get the A-111 new If it was used, the prior uses may have removed the J1 jumper (upper rich corner of the PCB under the ribbon cable). This jumper has to be there for the A-111 to "see" the CV bus.
> >>
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
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