No Effect Signal - Aion Cerulean (Bluesbreaker)

[brucer]

Please help me find what I'm missing so I can fix this build!

It's a Marshall Bluesbreaker OD built to King of Tone (KOT) specs provided in the BOM (https://aionelectronics.com/project/cerulean-bluesbreaker-overdrive/).  It includes the clipping diode selection switch and hard clipping mod switch recommended for the KOT.  All parts and connections are per the BOM.

In general terms, I can get bypass signal in my testing rig, but no effect signal.  I've tried probing the circuit and I don't get signal past R4 ... in a circuit-tracing-linear-fashion anyway (i.e I do get signal at other points further along in the circuit). 

I've gone so far as to remove R4, verify its value and put a new verified R4 in place, but soldered one end directly to C5 in case the lack of signal through R4 was due to s PCB error.  No joy. 

I've double-checked my wiring, part values, parts orientations and soldering (still, apologies in advance if you find/point out errors).

DC measurements are as follows:

IC1:
- Pin 1: 4.62
- Pin 2: 4.64
- Pin 3: 4.55
- Pin 4: 0
- Pin 5: 2.37
- Pin 6: 4.74
- Pin 7: 4.74
- Pin 8: 9.28

Q1: N/A (omitted)

Positive lead at jack: 9.32
9V in at board: 9.32
Ground in at board: 0

Photos follow:













Any constructive help would be greatly appreciated.

[neandrewthal]

Have you tried working backwards from the end of the circuit to see where is the first place you DO get signal?

It looks like if you leave off Q1 you have to connect points F1 and F2. Did you make sure to do that?

[brucer]

WHO'S AWESOME?  neandrewthal, THAT'S WHO!! 

Totally right neandrewthal.  I missed the F1/F2 jumper, thinking that it only applied to the Morning Glory version (misread/misinterpreted the BOM).

Thanks SO much for looking and commenting.  Totally appreciated.

My pedal works!!!! 

[neandrewthal]

Thank you, thank you. I`m here till Friday.