Problem with BOSS CE2 by Tonepad Switch Wiring

[Govmnt_Lacky]

Time for the audio probe 

[ricbox]

Time for the audio probe  

Probed, the signal passes only on MN3007 (is that even right?) and on the output, of course. But I can't find the point where the effect is "added". I've also tried to reverse every transistor.
But how do i measure voltages correctly? Because I always put the black pin of multimeter on the ground and the red one on the pin of the component. I did this with transistors.

[ricbox]

Little update: getting only 3,5V on Q1 base. Could it be the transistor or the other components?

EDIT: Got it, it was for the low voltage of the battery.

[Fp-www.Tonepad.com]

yeah, the battery is one of those components which often fails and has to be replaced frequently.

Glad you got it working!

[ricbox]

yeah, the battery is one of those components which often fails and has to be replaced frequently.

Glad you got it working!

Haha, I think there's a mistake. It still doesn't work. But thanks for the advice.

Wait, are you THE Francesco? The one that realised the layout?

[Fp-www.Tonepad.com]

yes, that's me.

[ricbox]

 I MADE IT!   

Bad MN3007.

Be careful of where you're buying things! I bought mine from Musikding.