***Please read this entire post - I hope it can help some of you with footswitch-related problems.***
Yesterday my 2nd head developed the exact same problem as my first - ch2 lost Reverb, Graphic, and FX Loop. :shock:
Long story short, it appears that the amp itself is fine, but the power conditioner/circuit I was plugged into was at fault.
Since the amp came on, stayed on, and Ch1 and Ch3 worked perfectly... I assumed it "had power", right? <<< so please no flames .
What I've learned, is that the switching in this amp (all amps?) is handled by internal relays.
If the relays don't see voltage in a range they expect, they don't work. Overall, the amp might sound/work great, but some components just might not switch in/out.
If you are having problems related to footswitchable functions not working, I highly recommend looking at the power going into your amp.
A very electrically-saavy friend of mine (killer player, too), and Tien Lawrence at Mesa both suspected low/poor power as the culprit, as it appears to have been.
BTW, Tien is the epitome of great customer service!!!
My faith in MB has been renewed/reinforced, and all is well with the world once again.
Yesterday my 2nd head developed the exact same problem as my first - ch2 lost Reverb, Graphic, and FX Loop. :shock:
Long story short, it appears that the amp itself is fine, but the power conditioner/circuit I was plugged into was at fault.
Since the amp came on, stayed on, and Ch1 and Ch3 worked perfectly... I assumed it "had power", right? <<< so please no flames .
What I've learned, is that the switching in this amp (all amps?) is handled by internal relays.
If the relays don't see voltage in a range they expect, they don't work. Overall, the amp might sound/work great, but some components just might not switch in/out.
If you are having problems related to footswitchable functions not working, I highly recommend looking at the power going into your amp.
A very electrically-saavy friend of mine (killer player, too), and Tien Lawrence at Mesa both suspected low/poor power as the culprit, as it appears to have been.
BTW, Tien is the epitome of great customer service!!!
My faith in MB has been renewed/reinforced, and all is well with the world once again.