Guitar and lead both work fine however my Marshall DSL40 (purchased Dec 2018) has stopped working, all lights work however there is no sound. High power output also makes strange popping/crackling noises when idle, also as of 2 weeks ago the amp would randomly but rarely make a clicking noise when in standby, this stopped a week later but I had previously never ever heard this noise before. The standby also emits a quiet hum.
I am a recent ower of a Marshall Origin 20, which I got in July. I've really enjoyed the amp until I plugged in last night and got out absolutely no sound out of it. I couldn't figure out why, as nothing as happened to it and it worked fine two days ago. I took it apart to do some trouble shooting and found that when I have all the knobs max'd and output on 20 watts, I can hear a whisper of my guitar signal (nicely saturated, presumably by the preamp tubes) through the speaker. This sound is affected by all of the knobs. However, if I plug my guitar directly into the return of the effects loop, and activate the effects loop I get no sound whatsoever; no guitar, no hum, nothing. Because of this, I'm sure my speaker is not the problem. These things led me to think it was a power amp section issue, so I went down and purchased a new set of matched EL34's, threw them in there, and nothing changed. I'd really like to know if there's anything I can do to fix this, because this amp is not even a year old and I should not be having these kinds of problems with completely normal bedroom use.
I have been trying to use my amp that's fairly new, the code 50, and it has been doing this thing where when i turn it on and start playing, it goes off. Literally the AMP just shuts the sound off. Keep in mind that the lights on the amp are still on and the sound is gone. Now, it's very frustrating trying to play a song and then see how the sound just goes out. I went to Guitar Center to see if I can get it replaced and they said that no, that i have to contact the manufacturer because the warranty goes through them. So here I am, trying to contact the manufacturer.
Thank you and please get back to me.