This massive wooden cabinet houses the heavy toroidal power transformer, the main power supply unit (PSU) board, and the multi-channel amplifier board.
Since a PDF of the official Logitech Z-5500 schematic is not publicly available, technicians use : logitech z-5500 schematic diagram
Ultimate Guide to the Logitech Z-5500 Schematic Diagram: Troubleshooting and Repairing a Legend This massive wooden cabinet houses the heavy toroidal
Early models used the TDA7294 IC for the satellite channels and bridged TDA7294 ICs for the subwoofer channel. logitech z-5500 schematic diagram