DSL 15 bias....

[Jeggz]

Hello I'm a new member and long time Marshall guy.
Does anyone know the recommended bias point in mv?
Thanks

[Micky]

Depends on your B+ voltage...

[Jeggz]

I had 435 so I went 22mv on the pins they got in there.

[Micky]

What was it set at from the factory?

[Jeggz]

It was outta whack.
Like 32 and 15

[DHave10]

I just had to have my 15h repaired on warranty, at con6A you should be 21mvdc according to Marshall tech. My V5 6V6 was real dim and amp barley worked so he asked if I was comfortable checking it, that's when he said it should be 21mv. It was at 2mv the other was 27mv. when adjusting raising one will raise the other so go back and forth checking. They still had to replace a diode and some resistors.