Tremulus Lune - LFO not working?

[BDuguay]

Hey All
I have an older commonsound Tremulus Lune, with the Bypass switch and a square/sine wave switch, and the LFO is not working. I have the homemade LED/LDR apart and can see the LED works and will dim in accordance with the depth pot setting but otherwise it's static. All active components check out fine and everything is where it should be. I'm wondering if it's a possible funky resistor.
Either way, can anyone point me in the right direction please?
Thanks,
B.

[Kipper4]

Did you check the voltages in the lfo? When passing signal?
Is your led varying when you play.
Is the ldr resistance varying?


http://fuzzcentral.ssguitar.com/tremulus.php

[mth5044]

See the Debugging thread and follow the instructions.

Your description is confusing - so the LED pulses? The depth changes the brightness, so does the speed work? You mention static - is that what you are getting on the audio output? Does the bypass work?

[BDuguay]

I haven't checked voltages while passing signal, no. The LED does not vary when playing through. The LDR is removed currently so that I can see the LED. I've tested the LDR on its own and it still functions properly.
The LED will pulse by manipulating the Depth pot but otherwise it remains "static" in relation to the pot setting. It will not oscillate regardless of where the Speed pot is set.
It's wired for true bypass and that works.
B.

[GibsonGM]

Sounds kind of like something is shorting around the LFO.   Need some voltages on the opamps!

[BDuguay]

Lately I've had a bunch of problems that turn out to be the least expected component failure and in this case it was a bad Speed pot. It occurred to me yesterday, after looking at the schematic with a coworker, to confirm all the pots were functioning as they should.
Thanks for all the replies!
B.

[Jdansti]

"Eliminate all other factors, and the one which remains must be the truth." Sherlock Holmes 

[BDuguay]

"Eliminate all other factors, and the one which remains must be the truth." Sherlock Holmes 

Amen to that. Sometimes pedal troubleshooting is more like detective work than anything else....
B.

[GibsonGM]

Good deal, glad to hear it, but yeah - strange component failure!   It happens, though....

[duck_arse]

"Eliminate all other factors, and the one which remains must be the truth." Sherlock Holmes 

Amen to that. Sometimes pedal troubleshooting is more like detective work than anything else....
B.

eliminate the impossible and you are left with the improbable.

[Kipper4]

Good work I'm dead chuffed you got it working.