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Help with a borked bypass

Posted: Wed Jun 13, 2012 2:59 am
by Psyre
Hey guys, my roomates Clean chan/dirty chan won't bypass for some reason. Also if I only hit the clean chan side no sound is produced, yet if I hit dirty chan then I get guitar signal, and if I hit the clean side while the dirty is activated I get a boosted dirty signal.


so No sound when pedal is disengaged or if I engage clean only.

I compared the insides to my cc/dc and everything is identical.
sorry for crappy ipod pics


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Re: Help with a borked bypass

Posted: Wed Jun 13, 2012 2:59 pm
by skullservant
Can you get a picture of the inside?

Re: Help with a borked bypass

Posted: Wed Jun 13, 2012 11:41 pm
by Psyre
pics added

Re: Help with a borked bypass

Posted: Wed Jun 13, 2012 11:45 pm
by skullservant
Wiring seems pretty okay. You might want to go back over all the connections and reheat/add a little more solder. A few of them look a little bare

Re: Help with a borked bypass

Posted: Thu Jun 14, 2012 12:37 am
by The4455
It could be a groundign issue, make sure the pcb isn't touching the enclosure.

Re: Help with a borked bypass

Posted: Thu Jun 14, 2012 12:56 am
by Psyre
that was the first thing I made sure of, stuck a small square of paper towel underneath it to make there was enough clearance. all the solder joints look extremely clean as well.

Re: Help with a borked bypass

Posted: Thu Jun 14, 2012 9:26 am
by McSpunckle
Totally +1 adding a bit of solder to the joints on the footswitch. Sometimes a solder joint can look good and not work. How? I don't know.

It's especially bad with solid core wire. Sometimes the solder joint can break.

Re: Help with a borked bypass

Posted: Thu Jun 14, 2012 4:16 pm
by Jero
Have you messed with the trim pots at all?
Is it possible that the level of the clean side might be low enough to not be audible by itself, but enough to slightly boost the dirty side when used in conjunction?

Re: Help with a borked bypass

Posted: Thu Jun 14, 2012 10:19 pm
by schrodingersgoldfish
Looks like it is time for you to learn the ways of the mutlimeter on continuity setting. testing out the connection on the dirty chan bypass. It sounds like a joint on the bypass side of the DP/DT switch is the borked one.

Re: Help with a borked bypass

Posted: Fri Jun 15, 2012 1:35 am
by The4455
McSpunckle wrote:Totally +1 adding a bit of solder to the joints on the footswitch. Sometimes a solder joint can look good and not work. How? I don't know.

It's especially bad with solid core wire. Sometimes the solder joint can break.


It's true, if there isn't enough solder on a joint, it's called a cold solder joint, in which there is some, but not enough solder to make a full connection. Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Re: Help with a borked bypass

Posted: Fri Jun 15, 2012 9:44 pm
by Officer Bukowski
The4455 wrote:
McSpunckle wrote:Totally +1 adding a bit of solder to the joints on the footswitch. Sometimes a solder joint can look good and not work. How? I don't know.

It's especially bad with solid core wire. Sometimes the solder joint can break.


Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Are you sure about that?

Re: Help with a borked bypass

Posted: Sat Jun 16, 2012 12:07 am
by Jero
Officer Bukowski wrote:
The4455 wrote:Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Are you sure about that?

I don't think he is :)

Re: Help with a borked bypass

Posted: Sat Jun 16, 2012 1:36 am
by Chankgeez
Jero wrote:
Officer Bukowski wrote:
The4455 wrote:Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Are you sure about that?

I don't think he is :)


I think first we'll have to find out the meaning of the word "apposed".

Re: Help with a borked bypass

Posted: Sat Jun 16, 2012 3:46 am
by The4455
Jero wrote:
Officer Bukowski wrote:
The4455 wrote:Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Are you sure about that?

I don't think he is :)


It's true, I'm not. I'm just remembering back to what I learned in my Digital electronics class, we didn't focus that much on soldering at all. But that's what it said in the soldering power point, but it sounded far fetched to me when I heard it as well. I wouldn't be surprised if it's wrong (which I'm assuming it is) because the class was more about digital electronics, hence the class name.

Re: Help with a borked bypass

Posted: Sat Jun 16, 2012 11:41 am
by Jero
Chankgeez wrote:
Jero wrote:
Officer Bukowski wrote:
The4455 wrote:Also you want to make sure that the solder joints are dull, as apposed to being shinny.

Are you sure about that?

I don't think he is :)

I think first we'll have to find out the meaning of the word "apposed".

:lol: gosh

The4455, that class sounds interesting, what all did you guys do? As for the cold solder, the dull ones are typically the culprit. Side note, ROHS solder is somewhat dull looking regardless of a good/bad joint, in my experience.