Marshall dsl 201 combo

[Doc Stitches]

Amp powers up but cuts off when volume gets up there.

Doc

[oc disorder]

Hi A good thing to eliminate first would be the bridge rectifier problem.
Usually this needs removing , cleaning the pins and resoldering or
replacing mounting it off the board.
This link describes someone else's "fix" and has a link to the schematic
http://www.historiclespauls.com/musi...d=22&Itemid=48

Using the search function in this forum here are some other references
to that problem common to these models.

Marshall DSL401 filaments
http://music-electronics-forum.com/showthread.php?t=370

How I fixed my DSL401 Overheating Problem
http://music-electronics-forum.com/s...ad.php?t=11575

Marshall DSL401 - Fading Out
http://music-electronics-forum.com/s...ead.php?t=6650

marshall tsl 602 - dull sound
http://music-electronics-forum.com/s...ead.php?t=8548

Of course it could be something else but this seems like a good place to start.
When the amp stops working does valve 1 filiment/heater cease to glow?

[Amp Kat]

Do check your tubes for red plating as it does sound like maybe a bias problem or a worn tube red plating and blowing the fuse.

[Doc Stitches]

Thanks Amp Kat....I haven't gotten to it yet but will check those items.

Doc