I was working on a Betty Boost. When i finished i conect everything but dindt work. The guitar is conected and the pedal is OFF, the guitar sound clean on my amp. The Pedal is ON, and there is no sound. Its posible to determinated wich is the problem i dont wanna drop the project.
Betty Boost dindt work :(
- Thread starter Zylent
- Start date
Dali
Well-known member
Are you 100% sure your LED is following this: https://forum.pedalpcb.com/threads/led-polarity.5/
And your C10 seems "empty"?
But I know nothing, just trying to help.
And your C10 seems "empty"?
But I know nothing, just trying to help.
BurntFingers
Well-known member
Can you show the other side of the board? Most of those solder joints don't look very strong.
ErickPulido
Active member
do the voltage measuring, re-flow solder joints, audio probe and if it doesn't work then change IC's
using an audio probe will let you make sure the sound going through the footswitch is reaching the pedal, and then check to see if it reaches the output hole on the PCB. And after that you can start checking with the audio probe to see how far it is getting into the PCB before it hits a problem. if you don't know how to make and use an audio probe, you can find info in the forums here and doing a google search. it will be time well spent.
BurntFingers
Well-known member
I think that'd be helpful. Every joint on the switch for example is a cold solder joint. That's asking for trouble. You're also not using enough solder on the board joints.
Chuck D. Bones
Circuit Wizard
In fact C10 was missing :O i put it but still no sound. Y change the led position also no sound. One of the tips of 1 C100K was kind curve? Maybe thats the problem?
In the photo above, C10 was installed where R23 belongs and C10 was left empty. Leaving C10 out or installing a cap where R23 goes would only mess-up the operation of the MID control. Sound would still get through the pedal so there are other problems. If you changed something, then please provide new pictures.
Backwards LED would not affect the sound.
We can't read any of the caps, and most of the resistors, so it's on you to verify each of them.
Measure the DC voltages on IC1 - IC3, all pins w.r.t. GND and report back. Pin 8 s/b around +9V, pin 4 s/b around -9V, all others should be close to 0V. No need to measure IC100.
Flipguitarist
Member
That’s how the tight control reacts I believe. as far as the bass control, it doesn’t work at all?
Chuck D. Bones
Circuit Wizard
Make sure TIGHT is at zero when you adjust the BASS control, otherwise you may not hear the difference. Not too many parts in the BASS circuit. Verify that you installed the right values for R19, R20, C8 & C9. With power off, Turn BASS all the way up and measure resistance from each side of C9 to ground. One side of C9 should be close to zero Ohms.
