Need schematic for Gallian Kruger mbe 3 bass amp

[soulman25]

I have a Gallian Krueger MBE 3 on my bench . i need a schematic on this amp if anyone has it. Thanks. Amp has low output.

 

[JonSnell Electronic]

Check the speaker switch.

 

[Enzo]

And pick up the phone and call GK and ask for it. They are generally helpful.