WH10 trouble

[birt]

I've got a dual pot WH10 again, but it doesn't work.
So i strated testing and i got a bit confused.

there is definatly a wah sound. when i turn the amp up loud enough i can hear the modulation on the noise from the pedal itself. so the wah part is working.
there is no guitar sound but there at the dry out. only it's sounds quite dull there. a lot of treble loss. so i guess the part before the dry out works too.
i just don't get where the guitar sound gets lost.

here's the schem: http://www.dirk-hendrik.com/wh10dualpot.pdf

[Dirk_Hendrik]

solder a piece of wire to a jack as a signal probe and plug that jack into your amp.  Start probing. Dry works so the input buffer works. How is the level at the wiper of P3? Aly level at the negative side of C3? etc etc. Just trace yourself through it.

Oh, No wah sound either (except it's own noise) ? Is there signal on the positive sides op C2 and C3?

[birt]

no there definatly is a wah sound. there's just no guitar sound :p

i'll look further into it after school this week