Hi guys, i have a ME-10 i bought used about 5 years ago which was working fine for about 3 years, then one day i was playing and all of a sudden there was no sound,,,ever since that day i can't hear anything ,NO even thru the headphones , there are lights on the patches and effect buttons and all the programs switch just fine when pressing any pedal but no sound can be heard at all,,,i checked the user's manual troubleshooting but nothing there worked...could it be the lithium battery inside the pedalboard ?


please help....

any suggestions ?