Marshall AVT50 u/s
Hello ladies and djents.
My trusty 13-year-old AVT50 Combo has packed in very suddenly. It powers on but there is no sound. Previously it was working and sounding absolutely perfect as it always has, turned up at a mate's house for band practice, plugged in, switched on and... silence.
None of the LEDs inside are lit, all components are intact with no visible damage, the internal fuse is also good.
The valve appears undamaged and emits a barely noticeable very faint orange glow when powered on - not sure if it should be brighter.
Might be speaker but I'm unsure - will dig out a battery and see if I can get anything out of it. Not convinced that's the problem as like I say none of the internal LEDs are lit, which to me points to something in the electronics.
Any ideas? I'm an electronics engineer (avionics) by trade so happy to swing a soldering iron and chips at it if need be.