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Ok so I'll get some flux and see if that works - I'll let you know what'll happen once I get the flux! Thank you very much for your help!

M.

Actually I tried with solder wick, but there's still a tiny coat of solder on pads and I can't get rid of that! I've seen that some people use flux and hot iron tip to take the solder off, could that be worth a try?

M.

I'm checking the continuity right now, it seems like there was some on the 9v input and some on the volume pot as well - can't get rid of that solder bridge!! I tried almost everything..we'll see who wins!!

M.

Ok thank you I will do that now.
One more (newbie) question: can I check a soldering joint as well for continuity? I mean, in general a good solder joint will be conductive..a bad one won't..so I might check for bad solder joints with that tool, right?

Actually if I measure on the ground plan around the pcb I get 8.6 V..a ground issue, you were right. Now what is causing that?

M.

Yeah actually I'm not an electronic experts but I know that there was something strange with the 9v reading on the C10 - pad. I replaced the two resistors but nothing has changed (same reading). Here are some pictures.
Sorry for the low quality.






M.

Actually I measured at the junction between R14 and R15, I get the same reading of 9 V on the + pad for C10 (on the - pad as well..). Yes, I'm using 9V as input voltage. I checked the resistor values and they're as per project. Should I try and replace them?

M.

9V

I posted them in my first post (the IC voltages), I checked them again after re-soldering pin 1 and pin 5 and they dind't change.

I checked and I get only a very very low sound on pin1, no sound on pin 5 and clear sound on pin 3. I checked the soldering and actually they look good.
I don't know what to do next.

M.

Hi guys,
so I've built the Egodriver (the version released on 05.2012), but I'm having problems making it work. Actually I built a testing rig (as per Jkokura thread), and I use an audio probe as well.
So here's the issue: actually the pedal doesn't work at all. I get a very very very low output, and it's so low that I can't say if the pots are working or not.
With the audio probe, I can hear the sound until pin 3 on the IC: from there, no more sound at all anywhere, assuming that my output would be on pin 8 (am I right?)
I checked the power supply and it's 9V (measured on PCB).
I measured the voltage on IC's pins and here are the readings: everywhere from 8.5 to 8.8 V, except for pin 8 where I have 9V. I found out on this forum that the readings on the Egodriver IC should be around 4,5 V, except for pin 4 (0 V, it's connected to ground) and pin 8 (which should be 9 V, is that the output?).
I replaced the IC to see if I had a faulty one, but nothing happened. Same readings as above.
I checked the connections as well and they all seem good to me.
Can you help me?

Thanks,
M.

It could work, except I can't see if it's double sided.

This is what Google turned up as an option in the US. You can look for something similar overseas I'm sure.

http://www.staples.com/3M-4466-Double-Sided-Foam-Tape-1-inch-x-5-yds-1/product_404286

Jacob

Yep it is doublesided, and looking at the link you provided it seems more or less the same. It should work, then!

The link says "biadesivo", so yes, it must be double sided.

You got it right! biadesivo=double sided tape

You can also solder component leads to the pots and essentially convert the pots into PCB mount pots. Thicker leads like those on a 1n4001 diode work great for this...

Now that's a great idea! I knew how to convert a pcb mounted pot to a "normal" pot with breadboard, just not the opposite!

Thanks everyone for the help!

M.

Ok sorry I think I have just found it. The name is "white doublesied foam tape", I think I found what you were talking about. http://www.leroymerlin.it/catalogo/nastri-adesivi/nastro-biadesivo-schiuma-bianco-24-x-24-mm-31878336-p
Can you confirm it?

M.

[foam]

Depends. Not the typical double sided tape, the scotch kind. It should be the kind with foam in the middle, which acts to raise the PCB up a bit as well as insulates it from the enclosure or pots.

Double sided foam tape.

Jacob

Umm I don't think I have ever seen it here in shops (I'm from Italy). So, why not using normal electrical tape, you just connect one end to the other (so the adhesive part connects the two ends) and you get a "diy" doublesided tape, and you can make it as thick as you want. Will it work this way?

M.

So you mean that I can put some doublesided tape on the solder side of the PCB?
I was thinking about that but I wasn't sure I could do that.
Newbie question

Thank you!

M.