I'm useless at building effects...

[Pierre]

Well I finished building the GGG. NOTHING works. My wiring is 100% correct, I quadrupled checked. The PCB is fine. I tried both GGG and OLC switch wiring, nothing works out. The switch works fine, my power supply works fine, my pedalboard works fine... I really don't get it. Meeeh.

Only thing that happens is that with a jack in the input, if I short the tip of the cable to the casing the LED lights up. Otherwise it doesn't. It does light up with a power supply though.

Bypassed signal doesn't even go through.

 

[metalspider]

Re: I'm useless at building effects...

did you hook up all the grounds?
thats a rookie mistake ive seen before.

 

[Pierre]

Re: I'm useless at building effects...

Yep all of them.

 

[jeremy]

Re: I'm useless at building effects...

my guess is your wiring isnt 100% correct, more like 98% correct and that 2% is whats causing the pedal to not work.

good luck!

 

[Pierre]

Re: I'm useless at building effects...

Yeah I'm redoing the whole thing right now with a new 3PDT and jacks. Who knows... we'll see. Thanks guys.

 

[ErikH]

Re: I'm useless at building effects...

If everything was correct, it would be working now, wouldn't it? Go through it component by component. Make an audio probe (go to www.geofex.com for how to) and run it through the circuit. I bet you'll find the problem in no time flat.

 

[PFDarkside]

Re: I'm useless at building effects...

Are you doing some goofy buffered bypass box? If not, the bypass should be very easy to troubleshoot. Are you sure you have the switch pinout correct?

 

[Vasshu the humanoid typhoon]

Re: I'm useless at building effects...

Prolly killed a transistor

Are you doing some goofy buffered bypass box?

Well...goofy is that pof pof going cheapskate POS TB POS that everyone thinks is the next coming
It is probally something small Pierre!
I do nothing but correct small teenboys strange solderings all day long...hehe

 

[Pierre]

Re: I'm useless at building effects...

Nah I figured out what was wrong and with a wee bit if help corrected it.


The VERY weird bit is, the PCB and pot work I did is PERFECT! The pedal sounds great, the voltages are EXACTLY what they should be... so I'm real happy. I CAN build a pedal hehehe

Oh yeah the mistake was a wrong diagram leading me to reverse the audio and battery neg wires on the stereo input :smack:

 

[Vasshu the humanoid typhoon]

Re: I'm useless at building effects...

Lolz...dats a classic Mistah Peer'

 

[PFDarkside]

Re: I'm useless at building effects...

Cool man, isn't it quite a sense of accomplishment? Especially that your PCB soldering was all correct?

 

[Pierre]

Re: I'm useless at building effects...

Nah, classic Pierre was when I first finished her, plugged in and got no sound at all, then realized I actually forgot to plug in the guitar

 

[Vasshu the humanoid typhoon]

Re: I'm useless at building effects...

Haha cool!
Is it sounding good??

 

[Pierre]

Re: I'm useless at building effects...

Actually yeah! Warmer than the Plexitone, less presence too. Another Marshall sound basically. I like it. I'll AB the Plexitone and the BSIAB and see which I can use for low and med gain sounds. By low and med I actually mean medium and high considering how much I like gain and how well the Plexitone cleans up

 

[Sludgenutz]

Re: I'm useless at building effects...

If everything was correct, it would be working now, wouldn't it? Go through it component by component. Make an audio probe (go to www.geofex.com for how to) and run it through the circuit. I bet you'll find the problem in no time flat.

ErikH...where on the site is that audio probe???? I couldn't find it.:2:

If it's part of the database page...is there a specific date (month/day/year) among the list I could scoll down too?:boggled:

BTW Pierre, great job! You didn't give up! Perserverance! Triumph! Victory!:jester:

The only reason I'm chuckling, is that I do numbnut stuff like wire the leads to a guitar output jack 180 degrees out...and end up with a hum-guitar! Once, as a copier technician, I pushed two pins together, and blew five pc boards!:thumbsdow

Electricity can humble the greatest of minds (and I'm not necessarily one of them).:drill:

 

[ErikH]

Re: I'm useless at building effects...

It's on the Tech Tips page under FX building Aids. Here's the image.

Yes, it really is that simple. That's a 0.1uf cap there. The blue wire clips to your amp. Plug the output of the circuit in to the jack of the probe. Input source (CD player or radio) to the input of the circuit. Use the exposed end of the cap to probe in the circuit to find the dead component or trouble spot. There's lots more about it on diystompboxes.com in the forum.