Riffrider300

Hey peeps, I've got a bit of a problem with my setup at the moment and im not sure what is causing it!
Im running my Les Paul through a Marshall JCM 2000 DSL, at the last 2 gigs my clean channel seems to cut out for short amounts of time, ranging from a couple of seconds to half a minute. I changed cables during the set and the problem didnt seem to get any better, i quickly cleaned the guitar jack and that seemed to help a bit, however it still did it. Is it simply a case of giving the jack a good clean out or a problem with my valves?
Help would be appreciated as I have a heavy gigging weekend coming up, so need to get it sorted ASAP!

Thanks in advance!

Marshall Amps

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longfxukxnhair

What ohm setting are you plugged into on the head? If its 4/8ohm it may be a bad output jack. I just had this happen a few days ago. The output jack on the DSL is a cheap part.

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Brett Blackmore

Hi,

You said it was the clean channel so lets start there.

If it is truly only the clean channel and you do not use a different fx-unit just for that channel then that rules out all jacks, speakers, fx-units, guitars and cables. It must be either a faulty component relative to the clean channel like a problem on its pcb board or a service part like a preamp tube.

Remove the preamp tubes and clean the pins with some electric cleaner spray. Now rotate the tubes to different sockets and test again - give the tubes a good push-pull poking to clean the connections in the sockets.

if the problem has moved to the gain channel or the fx-loop is suddenly faltering then there is your answer - a bad tube. You do not need to replace all preamp tubes, just the bad one, and there is no biasing needed so this is hopefully all it is.

Good luck - Brett

Riffrider300

Thanks for the quick replies. I am running on 16 ohms, so I don't think that is the problem. I don't run through any fx pedals/loops, I like my basic Marshall sound , so it does sound like what Brett mentioned. I'll give it a go, and clean up the pins and retry. I'll update any more probs though! Cheers again!