Hi guys,
I have exactly the same trouble on mine.
My G50 worked perfectly since 3 years, I used it for live session last month, working perfectly, and tried to use it last week for live session : it just started having the problem. Reception great, full green bars but it only works if I play hard. The audio LED on the transmitter doesn't light up when soft playing, cannot hear it. The RF LEDs on the receiver stay on even when I cannot hear the sound. I tried another guitar, another channel, bought another cable, nothing changes.
Damned... Perhaps a serial trouble.
