Yet another CE-2 debug

[Bassisst90]

Hey guys, I know there's a ton of threads on this already, and I keep trying to use them instead of making a whole new thread, but I have no other choice. So I made the tonepad ce-2 clone 2 years ago, got it working last year, and I was gigging with it recently, up 'til I decided to add a stereo mod to this build. I'd already added every other mod on the page and it worked fine. Now I only get the clean signal on both jacks, signal is there at r13 and does not come back through the bbd circuit, nor through c10. So here are my voltages:

IC1                       IC2       
1-4.55   8-9.5           1-varies    8-9.5   
2-4.55   7-4.55   2-varies   7-varies   
3-4.48   6-4.55   3-varies   6-2.73   
4-0v           5-4.53    4-0v           5-varies   
IC3                       IC4       
1-8.08-8.1   8-8.66   1-8.08-8.1   8-6.08   
2-5.93   7-8.66   2-8.08-8.1   7-0.64   
3-3.82   6-8.08-8.1   3-5.93   6-8.07   
4-6.08   5-0v           4-5.93            5-0v   
Q1            Q2          Q3         Q4           Q5
C-9.5            C-9.5   C-9.5          C-0.03   C-8.09
B-2.93   B-3.93   B-3.19   B-0.68   B-3.70
E-3.58   E-3.84   E-3.65   E-0v           E-3.86
So if anybody can help me tackle this problem I'd appreciate it. Thank you

[Bassisst90]

So just resoldered everything to check for cold solder joints and nothing. Same thing as before. Also checked that R21 gets signal on one end but not on the other

[Bassisst90]

So this time I decided to try and remove the mods and replace with original components and big suprise...no change. Everything is the exact same as when it was before. What the hell am I missing? Does no one have a suggestion? Is there anyone who can help me out? I need to have this up and running for my gigs in september but preferably before then

[R O Tiree]

Looks like you might have a solder bridge (short) between pins 3 and 4 of IC4 (MN3101).  Pin 3 should be at GND, not 5.93V. However, this doesn't explain why pin 5 of IC4 is at 0V... A break in the trace to pin 3 of IC3, maybe?

Check those values again... you might have touched 2 pins at the same time.

[R O Tiree]

Really dumb question, perhaps, but you have got ICs 3 and 4 in the correct slots, correct orientation?

Been there, done that.

[Bassisst90]

OK. I'll check those as soon as I can. Thank you

[Bassisst90]

Oh my god you are a lifesaver! A godsend! I had a lifted pad on the ground side of c30, so I connected it to pin 3 of ic4 and voila! Instant chorus! Thanks a lot man!

[R O Tiree]

Excellent news. Glad I was of some help