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I just found the problem ... I don't know if I'm happy or sad because it was my fault ..

I just made a mistake in R2 : 360ohm instead of 360k !!

I buy 20 of these without check and that's why I have the same problem on three pedal ...

Thanks to who try to help me !!!!


T.

Thanks mgwhit,

I'll try that .


Cheers,

T.

So many thanks, really .

Confirm that R7, R9, C7 and C8 are the correct values, and that your Drive pot and Nature pots are accurate and functional.

Yes, i can confirm everything : correct values for capacitors and resistors and pot ok ( tested with DMM ) ...

Are you using a CA3130EZ?

No: CA3130

Use a DMM to test that all your ground points have proper continuity to ground. 

I'll do that one more time ( I have already checked , but maybe I missed something ....

I think you're going to need to build an audio probe (not as hard as people think) or post some photos. 

I don't know what is that ... have you a link or something ?

I've got to admit that I'm running out of ideas.  Maybe someone else will chime in here.  Good luck!

Well, again, really really thank you for your support .  I don't speak english very well and I'sorry that I can't explain how much I had appreciate your courtesy .


T.

Thanks a lot mgwith !

I checked out of current :

R1 = 1M
R3 = 15k

R4 = 3k
R5 = 1k

I don't know how to check the capacitors C1 and C3 ; there's a way to do that ?


Thank you so much, again and again ..

T.

Thank you !!!!

ok i have the values as you can see in the picture .

I check R14 and is a 51R for sure .

Many many thanks !!!


T.

Thank you guys !! You're really helpful .

I'm really a newbie , as i said .. i can't take measurement ( i have digital multimeter but i don't know exactly how to use that )  .

some news may help :

- I didn't modify the project or components
- the green leds doesn't lighting up .. never
- the volume and drive pot seems to do the same job


I have a little volume, but no gain at all , with the volume and drive gain at 100%.

If you guys have patience and tell me how to measure the ic, i can try that ... So, I learn something new !

Thank you so much !!

ps: If i can, I post photos ( I have no camera, just the cell )

T.

Hi there,

I am really sure a newbie, and I can't understand something :

I heard a yellow shark before and I like it a lot. So, i decide to realize one by myself .

I tried but I have a really differnet sound with no "power" at all and no gain . The pot vol and drive seems to be the same job .
So, i decide to try with another one, because I can't repair the first one .
But I have exatly the same thing again and ... one more time !!!!!!!

I have 3 yellow shark that I can't call like that . They do exactly the same things and I dont' know why !!


Question:

which component cause something like that ( no power ( really few volume ) and no gain ( no distorsion at all )

Thanks

T.

Really, Really thank you guys .

I'm pretty sure I have made no mistake with in and out . I just checked every connection from the beginning using just the project and my eyes.
Now I'm gonna try what mgwhit sayd step by step; you're are really kind , thanks a lot.

for oldhousescott : Not Yet . I'm just trying to work the project correctly .. then, I hope to do the Super Duper Booster and the Face Melter .... 

Thanks  lot for now !! Come back to bother you guys to tell you what I find ( I hope something ) .

T.

Thank you guys !

It work in bypass . Wihen I  switch off, the signal pass with no problem .

Sorry for the mistake in the other topic, I have no sound at all .

I try to answer the questions from the rules :

(1) Project Name
Uproar

(2) General description of the problem
Doesn't sound at all ; there's no sound when the pedal is on; when I turn it off, the true bypass works good and the signal pass with no problem

(3) Steps that you have taken to try to resolve the issue
I just tried to change the 3pdt because I toke it from another pedal and the is the first thing I thought it can help me to exclude something

(4) List any substitutions you used for parts/values
No sobstitution from the original project


Thank you guys !!!!

T.

Hi there,

I realized an Uproar, everything appears to be ok, but doesn't work .
Light is on but I have no sound .. where do I start?


Thanks a lot .

T.

Same problem here .. 

Have you solved ?

Thanks

You can use electrolytics in those positions. Depending on the board you're using it might be different.

Using the schematic, you can see that C6 connects to R6 on one end, and C7/R8/D3/D4 on the other end and the positive end connects to R6. For C11 the positive would connect to R12/Q1, and the negative would connect to R12/C12.

Jacob

Thank you so much !! You are really helpful !!!!

^^^listen to him, and not me. I am but a peon at this Sorry for the bad information!

Hey , no problem ckim !! you have nothing to apologize ..

thank you guys, you're the best !!

T.

What does adding the 4.7K resistor do?

Thanks ckim715 !!   

Thanks to Paul , too !!   

So, it remains just the first question :

- regarding the C6 and the C11 ( 1uF caps ), if I have the electrolytic capacitor where do i have to put the positive ?

thanks

T.

Hi there, i'm back with my stupid answer ... i'm really a newbie ...

- regarding the C6 and the C11 ( 1uF caps ), if I have the electrolytic capacitor where do i have to put the +


Another rookie question :

- regarding the led, where do i have to put the + ?? square marking ( the tip of the led in the design project )  or circle ?


thanks a lot !

T.