MXR smart gate problems.

[fishbone89]

hi all, i have an MXR smart gate 135.
It worked fine, but all of a sudden, the bypass signal is very faint, basically cuts the volume in half when the pedal is plugged in the chain. (by itself)
When the pedal is turned on, all the LEDs light up ect, but NO sound passes at all, and the switch clicks veeerry loud.
I tested all the smd resistors with a multimeter and they all seemed good. i tested the board with the knob and switches only, not the other board.
I tested the switch witha Multimeter and tested good, but took it out anyway, and hardwired a known good switch in, with the same result.
powering with a OneSpot
Any ideas?