i all, i have a whammy problem its like if the pedals its grounding me with the guitar when fx in on, the padal works fine, but when i touch the strings, or any grond pont in my guitar i get noisy and i hear the guitar and the fx but i hear more the noise...,, i have check and nothing seems wrong, ehat can it be, its no supplky i have checked that.
Check everything in the signal path. Guitar, cords, amp, etc. just in case.
My guess is bad switch wiring or broken trace/solder joint to in/out/Power jack
These probably have pcb mounted hardware, but unsupported to the case.
Quote from: wgc on October 08, 2014, 01:38:44 AM
Check everything in the signal path. Guitar, cords, amp, etc. just in case.
My guess is bad switch wiring or broken trace/solder joint to in/out/Power jack
These probably have pcb mounted hardware, but unsupported to the case.
here its what i have seen, its always on the pedal, even on bypass, i can hear the noise, also, i dont have to play to start the noise just put my fingers on the strings, if i string open chords, and take off my hands the sounds become clean as normal, so something its not gronded, but i have check any cold join or something, and there its nothing.
also there was a L15 that was like dark but i cleaned with contact cleaner, and its not open...
I'd start doing continuity checks.
Took a look at some images on the web, those unsupported dc jacks are prone to broken solder joints. Failing that, you have a bent contact somewhere that's no longer doing its job.
Can't give you better advice than this without seeing it or knowing what you did to verify solder joints. I'd reflow them anyway.
Quote from: wgc on October 08, 2014, 12:59:00 PM
I'd start doing continuity checks.
Took a look at some images on the web, those unsupported dc jacks are prone to broken solder joints. Failing that, you have a bent contact somewhere that's no longer doing its job.
Can't give you better advice than this without seeing it or knowing what you did to verify solder joints. I'd reflow them anyway.
i think i have found the noisy guy its an inductor place right to ground the input jack ints marked as L15 but i dont have the value, will affect to mucho to jumper pads??
yes that guy was the bad one, i just pulled out and jumper pads, and now works really fine, what concerns me its that how a filter to ground in the input got burned and only that, probably was a phantom voltage or some guitar with active picks have send some voltage to that place... but its axtrange, and im not sure if its safe to leave jumpered that pad
Might only be there to avoid parasitic inductance from the circuit board. I'd suspect a bad power supply or manufacturing defect as the cause. Lightning? :)