[SOLVED] Fuzzy Oasis

[jerome1983]

Hello,

I can't manage to find where i did a mistake... My Oasis pedal is sounding very fuzzy, very distorted even when the gain is at minimum. It seems to be worst when the bandwith is switched to the right.
Can anyone suggest anything... i'm a bit lost.

Thank you in advance !
Jérôme

 

[Chuck D. Bones]

Are you driving it direct from your guitar?
Did you substitute any parts?
Where did you get the parts?
Is the tone fuzzy in all three positions of the VOICE switch?
Do you have a cover on the TONE pot? If not, make sure it is not contacting anything on the back side of the board.

Measure and report these voltages:
IC1-1
IC1-7
Q1-E
Q2-E

Show us a photo of the back side of the board.

 

[jerome1983]

Hi well, i found the problem this morning... i replaced R13 10k with a 1M... it resulted in a big saturation on the volume transistor...
Now it's working wonderfully !

 

[Chuck D. Bones]

Once again, the value of visual inspection is demonstrated.

Glad you got it sorted.