Turned my MKV on this week and about 15 seconds later the power light and footswitch lights went out. Checked the rear of the head and the power/rectifier tubes were lit & not redplating. Smelled a burning electrical smell & noticed a few wisps of smoke coming out from behind the OT so shut the amp off (was in standby the whole time). Fuse didn't blow.
I pulled the amp from the chassis & put it on the bench. I immediately saw that V1, V3, & V5 didn't light up. Switched a few tubes around & those individual tubes would light in other positions.
The amp is under warranty so I'll call Mesa on Sunday to start that process, but just curious if anyone had any ideas? Thanks.
I pulled the amp from the chassis & put it on the bench. I immediately saw that V1, V3, & V5 didn't light up. Switched a few tubes around & those individual tubes would light in other positions.
The amp is under warranty so I'll call Mesa on Sunday to start that process, but just curious if anyone had any ideas? Thanks.