Marshall Artist 3203 Issues

Charvel1975

New member
Hi guys I'm having problems with my Marshall Artist again, over a year ago I had it fixed at Amp N Guitar Doctor 1914 Tuscarawas St W, Canton, OH and Pat "Manny" Cahill said at the time when he fixed it, he said that there were several problems but burned driver tube socket had to be replaced.

My nephew was over here today and I restrung his electric guitar for him and he didn't have his little combo amp here so I figured I'd let him plug into my Marshall Artist with the matching Marshall 1965A 4x10 cab. Sounded fine when I first took the amp off standby after warming up for a couple minutes but as he was playing through it, the gain dropped significantly on the distortion channel and on the clean channel it's all brittle and distorted sounding with the clean channel volume really low? I even tried twisting the knobs back and forth and nothing, no change? I was trying to run a patch cable in and out of the effects loop and nothing, no change?
 
Re: Marshall Artist 3203 Issues

Disconnect the amplifier from the electricity supply. Drain the capacitors. Inspect the condition of all of the valves and their sockets. Hopefully, you have a simple case of needing to replace valves.

The fact that both channels are affected suggests that the Phase Inverter or power amp stage are malfunctioning.
 
Re: Marshall Artist 3203 Issues

The fact that both channels are affected suggests that the Phase Inverter or power amp stage are malfunctioning.

Couldnt possibly be any other tubes as the artist only has a PI and Power tubes. The rest of the preamp is all solid state.

By the description it could be a couple things... really its going to wind up having to go to a tech so might as well just take it there now.
 
Re: Marshall Artist 3203 Issues

Might as well revisit the same tech as before. This ought to save time with a diagnosis. Also, if his previous repair has failed, he should feel honour-bound to put it right.
 
Re: Marshall Artist 3203 Issues

Sounds daft but before you do jump to the conclusions that the amp is ****ed, make sure your cables are okay. How many times I've seen people say "my amps broke", when their cable is in fact broke.
 
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