Logitech Z906 Service Manual -
The Z906, however, hails from an era where "serious" audio hardware was designed with serviceability in mind. The amplifier modules are discrete, the capacitors are replaceable, and the fuse is accessible. If you can get your hands on the service documentation, you can bring a dead system back to life for the cost of a few dollars in components, saving a perfectly good set of speakers from the landfill.
For basic setup, technical specifications, and built-in diagnostic modes, refer to the official Logitech Z906 User's Guide : Hold the logitech z906 service manual
The Z906’s power supply contains (up to 350V DC on the primary side of the switching power supply). Even unplugged, large capacitors can hold a lethal charge for minutes or hours. The Z906, however, hails from an era where