Marshall DSL 401 No Sound! Really Need some help!!

[samyx]

where i can find pot vr12

hi everybody i dont live in united state and i want to know where i can find the vr12 pot for my marshall dsl 401 the other question is i dont know to much about ttubes so grooves tubes or mesa boogie and where i can buy mesa boogie and how much is

[okgb]

In Canada , i ordered the dual 200k master volume pot through
The Long & mcQaude music store .
Look for a marshall dealer close to you and see if they can order it .
tubes shouldn't be hard , ebay ?

[mattwood]

The last one of those I repaired had a blown 100K resistor R94. Otherwise you need to check for your high voltage. F1 may be blown. Are the filaments glowing on all the tubes?

I've just found this thread - I have a DSL 401 that has just gone mute also. Tubes glow but no sound (only a bit of a buzz when volume is right up (11 mind you!))

I've just tested R94 and it seems dead. I've tested a load of the resistors on the board and they all seem fine.

I am going to replace R94 but I'm curious as to why this might be blown / how to prevent it happening again / why it cuts out the whole amps signal.

Hopefully you guys are still around to answer!

Best wishes,

Marcus.

[Jazz P Bass]

I've just found this thread - I have a DSL 401 that has just gone mute also. Tubes glow but no sound (only a bit of a buzz when volume is right up (11 mind you!))

I've just tested R94 and it seems dead. I've tested a load of the resistors on the board and they all seem fine.

I am going to replace R94 but I'm curious as to why this might be blown / how to prevent it happening again / why it cuts out the whole amps signal.

Hopefully you guys are still around to answer!

Best wishes,

Marcus.

How did a 100K resistor go open?
A bad tube?