Help! Rebote 2.5 problem.

[kawayanstrat]

Hi,i just finished my Rebote 2.5,but there's no delay signal,only the dry signal is present. I checked and reheated the solder joints to ensure that theres no cold solder joints. I also checked with the multi meter each time i solder a resistor to see if its ok. This has been frustrating. What should i do?

[oldrocker]

If you have an audio probe you can check for the delayed signal on the PT2399 at pins 12 and 14 to see if you're at least getting that far.  If you haven't made an audio probe yet I can't stress enough how important it is that you do.  I wouldn't have fixed 90 percent of my builds without it.

[drewl]

Audio Probe? God bless you people, I couldn't survive without an oscilloscope.

[kawayanstrat]

If you have an audio probe you can check for the delayed signal on the PT2399 at pins 12 and 14 to see if you're at least getting that far.  If you haven't made an audio probe yet I can't stress enough how important it is that you do.  I wouldn't have fixed 90 percent of my builds without it.

Hmmm...i guess i have to make one. i never had any problems with my builds,except for this one.

[Mick Bailey]

Also check you're getting 5v out of the regulator and this is appearing on the PT2399. Check the wiring to your pots. Check for shorts between tracks, solder bridges (including checking pots) and stray wires that have whiskered out.

[oldrocker]

I second checking the 5 volt regulator for 5 volts at pin 1 (PT2399).  The poor mans audio probe works (and I'm definitely poor) but an oscilloscope would be nice.  IMHO sometimes actually hearing what's happening to the signal is a good clue into what might be going wrong in the circuit so that's why I use an audio probe.

[kawayanstrat]

Also check you're getting 5v out of the regulator and this is appearing on the PT2399. Check the wiring to your pots. Check for shorts between tracks, solder bridges (including checking pots) and stray wires that have whiskered out.

My reading from pin 1 of the PT2399 is only 4.96v. Is that bad?

[oldrocker]

4.9 volts should be fine.