Focusrite Liquid Channel schematics

[Westrek]

Probably a long shot...Looking for schematics for the repair of a Focusrite "The Liquid Channel" Primarily the mic preamp section.

Thanks

 

[Khron]

Are you having some issues with one / yours? And/or is it that convoluted that reverse engineering is not an option?

 

[Westrek]

Fairly convoluted. Mostly parts identification.

 

[Khron]

Is there THAT much circuitry upstream of the ADC's? Most of the "magic" is in the digital realm.

Buuuuut you've (still) neglected to mention the reason for this search...

 

[Westrek]

This unit belongs to a customer and has been in my shop for over 2 years. I’ve suggested he send it to one of the Focusrite repair centers in the US. As I recall, the problem is noise in the mic preamp. Otherwise it functions properly. I did replace one transistor in the circuit and thought I had it, but the problem reappeared shorty thereafter. I will set it up and test to get a fresh perspective on the problem. Thanks

 

[Khron]

Internal photos of the unit would be at least interesting - there's a chance some familiar-looking topology may or may not be involved.