power components are usually the first to go, so a hunch says replace the chip,
and this did fix the amp,
sounds cool, however does not clip well, as the DSP chips do not like over driven signals, so there is a peak LED to warn you that your sound sucks,
gain is real hot for guitars, you barely turn up the vol knob and the LED blinks,
so this is probably meant for acoustic guitar and mic, so you can play6 the coffee shops whit one piece of gear,
the processors sound good and the amp tilts back like a monitor, could use some ballast to keep it sitting up straight,
3886 sitting behind the wire bundle on a hefty heatsink,