My JCM2000 TSL100 will power up and play fully....after a while 30 mins or so....it will fade out to no sound....or weak sound....power it down then up again ...it will play full for another period....had the smae problem before and took to amp guy...it worked perfectly for him...maybe he didn't play it long enough...so I said for him to replace all tubes anyway... it is now doing it again after maybe 50 hours of play....any thoughts or just preplace tubes again....if its a tube is it likely to work for a period of time after its powered down then back up?
Hi Barry,
Thank you for your message, I would advise you contact our US Marshall distributor on 800-877-6863
Kind Regards
Team Marshall