ADB wrote
Sorry for hijacking this thread but I need some advice on a Marshall 5210 I have just been given by my nephew. Apparently he was given it by someone who no longer plays and it hasn't been touched for quite a while. Anyway it doesn't work or at least it isn't working correctly.
When he gave it me to take a look at there was no sound when a guitar was plugged in - you can hear a pop when it's switched on and some white-noise when all the volume controls are at maximum but nothing else. The footswitch also seems to activate the overdrive channel OK (LED comes on...).
I have had it apart and there is nothing obvious that has blown. I re-soldered a few of the pots that looked like they might have dry joints and put it back together. Now there is at least some sound but only when the master volume is at full (there is nothing and then a full turn there is suddenly sound and I think it is about the right level - i.e. loud). When I activated the overdrive channel there intermittent sound when turning the volume knob as well so I think some of the pots are dirty and probably need replacing.
Any ideas what to try next or other options?
Cheers, Andy
Hey Andy,
There are fully schematics for the amp available which would probably make it easier for you to test if you knew what you were doing.
Available
here