>This is usually because the pad got too hot when soldering. THe copper foil
>there were three on this board. One was missing. One fell off as
>soon as I started to solder it. Then the third I just found today.
is only glued on, and if you apply too much heat, they let go and can
fall/break off. Another thing that causes this is too much mechanical
pressure applied by the component itself - usually limited to larger
electrolytics which move when subject to some sort of physical shock,
lifting the pad off the PCB.
Ken
>_______________________________________________________________________
>The one today was for the resistor at the L/P input. The one that was
>missing was for one of the three caps that are in the middle of the
>board, and the other was a diode I believe.. I didn't pay attention to
>where that one was.
>
>I got the vco working. This one was my fault!! bad solder on one of
>the bridges that goes across the pcb (where I installed a jumper
>across two points.. dono what its really called)
>
>but now the pulse out doesn't work and the shape doesn't do anything..
>tho sound does come out of it.
>I guess I'll start searching around the associated IC's and see what I
>can find.
>
>Scott
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>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
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Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>