Logitech Z906 Service Manual Patched !link! -

The Z906 architecture is split into three main sections: the Power Supply Unit (PSU), the Class-D Amplifier stage, and the Logic/Pre-amp board.

: Check the main AC fuse located near the power switch on the back panel. If it is blown, do not just replace it; a shorted component down the line likely caused it. logitech z906 service manual patched