Deep Blue Delay not working

[niwatori]

Hi there
I tried the original PTC and it has a low delay than the DTC.

In any case, I'm here because I put together in a plastic box, and now is not delaying the input.
I do not know what is going on. May be a cable pop out manipulating the circuit to put in the box?

I will post the voltage values when come home.

[deadastronaut]

if its in a plastic box make sure your grounds are ALL tied together...

ground jack in/out/power ground too..

[jimilee]

Try jumping pin 3 and 4 of the 2399 chip.


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[niwatori]

Try jumping pin 3 and 4 of the 2399 chip.

I did in the last debug.

How can I change the post tittle to put something like "[Solved]"?

xD not solved any more

Voltages with original PTC outside the enclosure plastic box

TL072CP
1-4.02
2-4.02
3-3.98
4-0.0
5-3.98
6-3.90
7-3.90
8-7.90

PT2399
1-4.97
2-2.48
3-0.0
4-0.0
5-1.22-4.97 (osc)
6-2.49 + random weird sounds
7-4.53
8-0.0
9-0.12
10-4.35
11-4.35
12-0.11
13-1.67
14-4.91
15-2.49
16-2.49

78L05
I-7.90
G-0.0
O-4.97

May be I am missing something, but I review the offboard wirings and all seems to be connected where corresponds.
I noticed when turn on the 3PDT the output jack is a bit louder than turned off.
It can be a short that fry the IC?

[niwatori]

Hi there
About 6 moths later, I revised all the soldering points, and I noticed the potentiometers are faulty.
So, changed and now all works like it should.

Can any admin change the topic to [SOLVED]?
Thanks