madbeanpedals::forum

Projects => Tech Help - Projects Page => Topic started by: memor82 on May 31, 2014, 03:23:56 PM

Title: Problem Yellow Shark PCB
Post by: memor82 on May 31, 2014, 03:23:56 PM
Hi!
I've just got a problem with a Yellow Shark.
All pcb's holes was been hard to solder and a piece of link just jump of the board  :(
What can I do?
Thank you

(http://i61.tinypic.com/125l3pt.jpg)
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 10:08:14 AM
Anyone?

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Title: Re: Problem Yellow Shark PCB
Post by: muddyfox on June 01, 2014, 11:05:00 AM
It's weekend man, patience!  ;D

So, from what I gather, you lost the connection between round (cathode) LED pad and switch wire?
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 11:12:43 AM
Sorry :-)
This is the single sided version.
I lost Sw and catode (circle)led pad
Thank you

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Title: Re: Problem Yellow Shark PCB
Post by: muddyfox on June 01, 2014, 11:18:58 AM
Run a wire from square LED pad to offboard LED anode and another wire from LED cathode to switch, that's all.
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 11:22:19 AM
Ok I'll try!
Thank you so much.
Good weekend man

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Title: Re: Problem Yellow Shark PCB
Post by: muddyfox on June 01, 2014, 11:24:03 AM

That's gonna work for sure, what you lost does nothing more than give you nice labeled pads. It's a connection from LED cathode to wire which you can skip altogether since the LED is offboard anyways.
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 11:30:41 AM
understood.there's always something to learn :-)
Thank you man

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Title: Re: Problem Yellow Shark PCB
Post by: muddyfox on June 01, 2014, 11:32:15 AM

No problem! Let us know when you sort it out!
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 01:34:35 PM
Sorry man,
but I think that this pcb is faulty.
Now has jump off the "out" pad  :'(
They letterally came off from the pcb

(http://i62.tinypic.com/2ijsrcm.jpg)
Title: Re: Problem Yellow Shark PCB
Post by: muddyfox on June 01, 2014, 02:09:54 PM

No problem, just solder it anywhere on the track leading from the missing pad. Hole is not really necessary if the wires are not under stress.
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 02:12:26 PM
Ok thanks!

Inviato dal mio Galaxy Nexus utilizzando Tapatalk

Title: Re: Problem Yellow Shark PCB
Post by: wgc on June 01, 2014, 02:22:36 PM
Your iron might be too hot, also try to make the time you're on a pad with your iron less than 6 sec
Title: Re: Problem Yellow Shark PCB
Post by: irmcdermott on June 01, 2014, 02:45:38 PM
I agree that your iron may  be too hot if you are lifting traces and pads that easily/quickly.
Title: Re: Problem Yellow Shark PCB
Post by: memor82 on June 01, 2014, 02:50:16 PM
Quote from: irmcdermott on June 01, 2014, 02:45:38 PM
I agree that your iron may  be too hot if you are lifting traces and pads that easily/quickly.
310 °c, few seconds
Already assembled Pork Barrel and a Retrograde and many other pedals from musikding and tagboard with no problem.
60/40 Solder
Title: Re: Problem Yellow Shark PCB
Post by: Haberdasher on June 01, 2014, 02:53:34 PM
is that pcb from me?  i do not recognize your screen name.
fwiw i have not heard anyone else complain of defective material, but i will send you another one free of charge on different material if you would like (if you bought that one from me).  can you pm me?
Title: Re: Problem Yellow Shark PCB
Post by: rullywowr on June 01, 2014, 02:59:10 PM
I think the problem is worsened by soldering the wires from the same side as the copper. When you pull the wires you are putting all that stress on the copper. Put the wires through the side without copper and solder. When the wire gets pulled, it will pull the copper towards the PCB and less likely to lift.