Quick GGG PT80 PT-80 question. Voltages help!

[theundeadelvis]

I build the PT-80 using GGG's layout. Used a 3PDT and the charge pump also on GGG. The pump is only putting out 15v is this a problem? Also, when I switch the pedal on I get no delay just my dry guitar signal? Checked my wiring and its fine, used the NE570 (and the PT2399 of course) ic and the MAX1044 for the pump. Any quick suggestions? I killed my audio probe so I haven't had a chance to do that yet. Thanks!

Here are my voltages. Could someone look at these at tell me if they look correct, please. Thanks!

PT80 Voltages

PS-9.23v
At board from Charge pump-15.18v
78L05
  input-15.21v
  gnd-.5mv
  output.5.11v
78L12
  input-15.27v
  ground-.5v
  output-11.99v
TL072
  pin 1-5.98v
  pin 2-5.99v
  pin 3-5.99v
  pin 4-.2mv
  pin 5-5.24v
  pin 6-5.99v
  pin 7-5.99v
  pin 8-11.98v
PT2399
  pin 1-5.09v              pin 9-2.57v
  pin 2-2.57v              pin10-2.58v
  pin 3-.7mv               pin 11-2.57
  pin 4-.6mv               pin 12-2.57
  pin 5-2.89v              pin 13-2.57
  pin 6-2.56v              pin 14-1.89
  pin 7-.66v                pin 15-2.57v
  pin 8-.67v                pin 16-2.57v

NE570
  pin 1-380mv       pin 9-1.8v
  pin 2-1.8v           pin 10-5.98v
  pin 3-1.8v           pin 11-1.8v
  pin 4-.2mv          pin 12-1.8v
  pin 5-1.8v           pin 13-11.98v
  pin 6-6.63v         pin 14-1.8v
  pin 7-6.63v         pin 15-1.8v
  pin 8-1.8v           pin 16-.95v

2N5088
  C-11.98v
  B-2.56v
  E-1.98v

[theundeadelvis]

Added voltages to the above. Thanks!

[theundeadelvis]

Ok I've now tried 2 different PT2399's, 2 different TL072's, and 2 different Ne570's and still no delay?

[theundeadelvis]

After doing a bit of searching the PT2399 seems like it may be easily dammaged. Maybe I could have 2 bad PT2399's. The signal that is passed through when the pedal is switched on very clean and unaffected.

[theundeadelvis]

Sorry to do this but I thought I'd give my thread one more chance. Sooooo, BUMP.

[theundeadelvis]

 

[johngreene]

Chances are the internal clock isn't running. Check the connections around the variable resistor that controls the delay. Everything else looks ok from what I can tell. You didn't forget a jumper or something?

--john

[theundeadelvis]

Thanks John! I got it working! Turned out to be a little solder had bled over to a trace it wasn't supposed to touch. I probably wouldn't had found it without trying your suggestion! This pedal is awesome (gotta figure out how to rid it of the crazy runaway feedback though).

[lovric]

you'll find a cure for feedback on rebote delay 2.5 schems on tonepad. nit if you listen to quadrant 4 and tommy bolin, it's a feature.