Messages

Hey guys, I'm stumped on this one. I built a touchstone and I have some issues to trace down. I have signal in bypass, but not when I engage the pedal, the led lights up, but there's no signal coming through. My voltages are as follows:

IC1 pin 1-8, 8.38, 8.35, 0, 0, 0, 8.01, 8.40, 9.06

IC2 8.41, 4.18, 5.83, 0, 4.18, 5.58, 5.58

IC3 8.26, 80mv, 7.54, 8.41, 8.41, 0, 0, 0, 4.18, 4.18, 0, 8.28, 8.41

IC4 1.74, 4.10, 4.06, 0, 2.22, 2.22, 4.12, 9.06

IC1 has some funky voltages, but I'm not finding the issue. Any help is appreciated!

Ok, I did some more work last night with the gain pots and got it a lot cleaner, and somewhat louder. Think I'm gonna leave it alone for now. I appreciate all the help!

Ok, I took bsoncini's advice. When I dial back the blend to 0, I get unity gain, but no more. With the delay up, the repeats start to distort after about 3:00 on the level.  One other interesting thing I found is that even with the pedal off, the level knob affects gain, when I dial it down, it reduces my signal, whether or not the pedal is on.

Good to know bsoncini. Any suggestions on what to check to correct this?  Could it just be a biasing issue?  Thanks!

Finally got my total recall working after debugging and biasing (which took me forever).   The pedal sounds amazing, but I do have one issue. Is it normal for this pedal to drop the volume?  I have about a 3 to 4 DB drop in output when I engage the pedal. Was hoping there's a way to rectify this without having to fiddle with my volume pedal every time I engage or disengage the delay.

Thanks!

Did you get any resolution to this?  I'm having the same issue.

Not sure why my pictures are upside down...anyway, hers a list of my voltages.

IC1
Pin1. -7.48
Pin2. 0
Pin 3. -7.1
Pin 4. -14.8
Pin 5. -12.2
Pin 6. -11.3
Pin 7. -13.4
Pin 8. 0

IC2
Pin1. -13.45
Pin2. -13.0
Pin 3. -12.9
Pin 4. -14.8
Pin 5. -12.9
Pin 6. -12.7
Pin 7. -4.4
Pin8. -12.9
Pin9. -12.9
Pin10. -6.8
Pin11. -8.5
Pin12. -12.9
Pin13. 0
Pin 14. -12.9
Pin15. -12.9
Pin 16. -13.5

Ic 3
Pin1. -6.0
Pin2. -3.0
Pin 3. -3.4
Pin 4. -14.8
Pin 5. -7.2
Pin 6. -7.4
Pin 7. -7.4
Pin 8. 0

IC 4
Pin1. -7.4
Pin2. -7.4
Pin 3. -7.6
Pin 4. -14.8
Pin 5. -7.0
Pin 6. -7.0
Pin 7. -7.2
Pin 8. 0

IC5
Pin1. -7.4
Pin2. -7.4
Pin 3. -7.2
Pin 4. -14.8
Pin 5. -6.1
Pin 6. -6.8
Pin 7. -7.0
Pin8. 0

IC 6
Pin1. -0
Pin2. -7.4
Pin 3. -8.9
Pin 4. -8.9
Pin 5. -15
Pin 6. -7.5
Pin 7. -6.0
Pin 8. -13.7

IC 7
Pin1. -0
Pin2. -7.5
Pin 3. -9.3
Pin 4. -9.4
Pin 5. -15.0
Pin 6. -7.5
Pin 7. -7.2
Pin8. -13.9

IC8
Pin1. -7.8
Pin2. -7.0
Pin 3. -6.9
Pin 4. -0
Pin 5. -0
Pin 6. -0
Pin 7. -15.0
Pin8. -15.0
Pin 9. -15.0
Pin 10. -7.5
Pin11. -7.5
Pin 12. -15.0
Pin13. -7.8
Pin14. 0

IC9
Pin1. -.05
Pin2. -8.1
Pin 3. -8.1
Pin 4. -15.0
Pin 5. -8.1
Pin 6. 0
Pin 7. -13.6
Pin8. 0

IC9
Pin1. -.05
Pin2. -8.1
Pin 3. -8.2
Pin 4. -15.0
Pin 5. -8.1
Pin 6. -0
Pin 7. -13.6
Pin8. 0

Regulator
I -25.57
G 0
I -15.0

Second half of voltages

I think I posted this in the wrong forum originally (general questions vs. tech help). I couldn't figure out how to move the post, so I'm copying it here. I'm working on my first delay, the Total Recall, and I've got some wacky voltages. I was hoping someone smarter than me could help me figure out where to focus my troubleshooting efforts. Any help would be appreciated. Thanks!
Jon

Here's the second half of the voltage picture

Hello, I'm working on my first delay, the Total Recall, and I've got some wacky voltages. I was hoping someone smarter than me could help me figure out where to focus my troubleshooting efforts. Any help would be appreciated. Thanks!
Jon