Dunlop Uni-Vibe UV-1 wiring issue

[ProfArmageddon]

Hi all,

I'm new to the board and somewhat new to pedals, having done some mods in the past few months that went pretty well.  So I took a swing at some not-working pedals to see if I could make lemonade out of some lemons and learn more along the way. 

The UV-1 has power and the chorus/vibrato switch works, with the LED switching from red to green, but the effect/bypass LED is dead and the signal doesn't get through to the amp either way.

I've checked the switch itself with my multimeter, and it seems to be behaving correctly. 

Any suggestions on where to start?  Are there particular elements of the pedal that would kill the signal thruput, regardless of power supply.

[Plexi]

Welcome!

Post some pics!
Some google search bring me to this:
http://www-personal.umich.edu/~damont/Dunlop2.JPG
http://www-personal.umich.edu/~damont/Dunlop1.JPG
http://www-personal.umich.edu/~damont/Dunlop1.JPG
Is the same version you have?

My humble experience/opinion with this vibe:
I've had two versions of this pedal many years ago. One very earlier, and one newest: both completely different (sound and construction).
Not as good as I remember; loud poping, very bad bypass switching (a long pause between switching: I guess where's your trouble now......), etc. It get "lost" in the mix in some amps/chains.
I'm happy now with a Voodoo Lab Microvibe: very interactive, with that sweet analog compression/gain.

[ProfArmageddon]

Here are some pictures.  The PCB says it's a 1997 model.  I see no burned sections, and the one spot where there's a trace issue (to one of the stomp switches--see second pic), the orange wire has been soldered to the pole on the switch where the trace went to anyway. I've also used my multimeter to check continuity when the switch is on and off, and it behaves correctly in that regard.

[Plexi]

I've had exactly the same version.

I could see some extra solder and not very clean over the switchs board.
And a totally mess in the potentiometers board.
Check there for some shortcut..

[ProfArmageddon]

Thanks, man! Will do.