SOLVED Sea Horse not working

[Dali]

If that forum was not free to use I would been broke already. Many times...

I just finished my Sea Horse Chorus and well, it doesn't work.

I don't see any shorts in my soldering, no capacitor or L78L05 in the wrong direction...

LED is flashing and RATE seems to work at the LED level but still no sound. The LED is "always ON", less bright when I can hear the clean guitar.

Any idea what to check?

Some pictures of my attempt:

 

[Robert]

On the back side of your PCB where it's labeled "PCB025", does it by any chance say "Rev 1.3" below that?

(can't see in the pic)


Disconnect the SW wire and see if the LED goes out.

 

[Dali]

On the back side of your PCB where it's labeled "PCB025", does it by any chance say "Rev 1.3" below that?

No, no Revision number at all.

Is the LED supposed to go out if I disconnect the SW wire?

 

[Robert]

Okay good deal, just wanted to make sure I was looking at the right info.

Yes, if you disconnect the SW wire the LED should go out.

 

[Dali]

What is that vaudou stuff?

I un soldered the SW and it worked.

I just put back the SW cable in the hole and it looked like it still worked.

Now I'm puzzled. Big time.

Should I just solder it back and be happy ever after?

 

[Robert]

Could have been a small solder splash that you didn't see.

 

[Dali]

Could have been a small solder splash that you didn't see.

No better picture exists... sorry

 

[Robert]

Yep, that could do it. Your LED SW line would have been shorted to the PCB output.

 

[BurntFingers]

It's always worth having a scrub with some isopropyl alcohol and a toothbrush just in case.

On the board I mean.

 

[Nostradoomus]

And on your hands these days

 

[BurntFingers]

Mix it with aloe vera gel and you got your own hand sanitiser.

 

[Chuck D. Bones]

My work here is done. Mark it solved!

 

[markseo]

Hi, I got a rev 1.3 from the fantastic people of Musikding. Should I take anything into account when building? I see the build docs are for the 05.21.20 revision.

 

[Robert]

Hi, I got a rev 1.3 from the fantastic people of Musikding. Should I take anything into account when building? I see the build docs are for the 05.21.20 revision.

Nope, you're good to go, that's the most recent version.

 

[markseo]

Thanks!

 

[markseo]

Oh, on y PCB (rev 1.3) there is a 10n capacitor, but on the image from Musikding its value is 47n and thats what I got with the kit. Should I use a 10n or the one provided by Musikding?