Marshall Amp Forum - View Single Post - Help. Lights on, no-one home

twa · 03-05-2008, 09:50 PM

Hey guys. I have a jcm2000 tsl 60. It's died on me, absolutley no sound coming from the speaker, there is a slight hum from the amp (normal?). The light on the power switch is glowing, the tubes are all glowing, although very faintly, the fuses are both good, the speaker worked through a different amp. I gigged with the amp 4 days ago and all was good. Any suggestions/thoughts would be greatly appreciated.
Would a faulty tube stop all sound?
Also if you remove a power tube do you need re-bias if you put the same tube back in?
Cheers TIM

03-05-2008, 09:50 PM	#1 (permalink)
twa Junior Member Join Date: Feb 2008 Location: New Zealand Posts: 5	Help. Lights on, no-one home Hey guys. I have a jcm2000 tsl 60. It's died on me, absolutley no sound coming from the speaker, there is a slight hum from the amp (normal?). The light on the power switch is glowing, the tubes are all glowing, although very faintly, the fuses are both good, the speaker worked through a different amp. I gigged with the amp 4 days ago and all was good. Any suggestions/thoughts would be greatly appreciated. Would a faulty tube stop all sound? Also if you remove a power tube do you need re-bias if you put the same tube back in? Cheers TIM