Earlier this year i bought a Marshall AFD100 Slash signature amp. It has been working okay untill now. The problem started yeterday when i turned it on, Very little sound came out of the amp, so i tried to shut it off and then back on. But now all the tube failure lights were on (they are indicating failures on the back of the amp). All 4 of them, and no sound is coming out of it. I don't know what has happend. In the manual it say that it might be the HT fuse that has gone when all of the 4 lights are on, at same time. (previously there have been small problems with it, sometimes the sound in it fades away and becomes very quiet, then later to come back up to normal level...) I am very, very happy for the amp and want it repaired at all cost! I still have my warrenty on it so i can get it repaired. But what can cause this?
Please help me guys :)