Deep Blue Delay not delaying

[JebemMajke]

I ve made deep blue delay clone, using schematic from guitar gear.ru . And it has some delay when i strum really hard but it's sort of farting delay. I;ve used OPA2134 and ofc pt2399.

Here are the voltages
OPA2134
1-3.90
2-3.91
3-3.90
4-0
5-3.90
6-3.90
7-3.90
8-7.80

PT2399
1-4.35
2-2.17
3-0
4-0.2-0.4 ( from low to max )
5-2.33
6-2.13
7-0.16
8-0.48
9-0
10-2.17
11-2.17
12-2.17
13-2.17
14-2.17
15-2.17
16-2.17

780L5
3-7.81
2-0
1-4.36

Help.

[midwayfair]

I think your batteries's low. Try a fresh one or a power supply.

[JebemMajke]

Power supply it was, but 78l05 was turned around.
Now
OPA2134
1-5.63
2-5.20
3-5.20
4-0
5-5.20
6-5.20
7-5.20
8-10,20

PT2399
1-5.00
2-2.48
3-0
4-0.2
5-2.91
6-2.48
7-0.42-053 ( it kinda goes up and down between those two values )
8-0.50
9-0
10-2.48
11-2.48
12-2.48
13-2.48
14-2.48
15-2.48
16-2.48



780L5
3-10.20
2-0
1-5

Stil the same farting sound, but louder

Edit
I've tried connecting delay to common ground and not digital ground, and than connecting digital ground to common ground. No changes. Used tl082 instead of OPA2134. No difference.

[JebemMajke]

1uf cap ( that one that's coming after mix pot ) was soldered wrongly ( ground connecting with 2,2k ). I changed that, but no difference.

[R O Tiree]

Pin 9 on the PT2399 should not be 0V.  It should be 2.48V.  Look for a short to ground on the PCB on that track.

[JebemMajke]

9 was loose. Fixed that and than used common ground instead of digital. Poof, works like insane. Love it, love it. Thank you for your time and help.

[R O Tiree]

No worries - it's a pleasure

[JebemMajke]

It's pretty awesome. Takes other pedals well and it delays, reverbs and choruses.
But it's a bit on a bass side. I would like to give it more treble. Should i change just the output cap or both input and output caps? Or a simple change of IC's would suffice?

[midwayfair]

It's pretty awesome. Takes other pedals well and it delays, reverbs and choruses.
But it's a bit on a bass side. I would like to give it more treble. Should i change just the output cap or both input and output caps? Or a simple change of IC's would suffice?

The dry signal, or repeats, are too dark? If it's just the dry signal, I would reduce the input cap to ~10n and the series resistor to 82-100K. Should be brighter and about the same overall volume (you can't balance it completely because the more treble-y signal will be heard as "louder" than the bassy one). Or you could remove the input resistor entirely and reduce the 100K at the output to bring the volume back down to unity, reduce the gain in IC1A (220K should be closer), or otherwise make up the volume difference later in the circuit ... obviously this change would require more tinkering because you risk distortion. I'm pretty picky about how much treble I can get out of my effects, and I often remove input resistors. However, you have to be careful how much treble you have running through a PT2399 circuit or you'll get noise from the chip, even in a circuit like this where the dry path is partly independent of the wet signal.

Changing the IC won't do anything. Changing the output cap won't do much either if you're cutting highs at the beginning. I also wouldn't try brighting things at the output or you'll get more hiss. Better to just let more guitar signal in.