Commodore 64 Computer in Original Box 1541 Floppy Power Brick Cord with User's Guide and all power cords. Cord for 1541 included. Powers on and voltage is 5.1 volts tested with my Fluke 289 multimeter from the power supply. Fuse is not blown. My knowledge stops here as I don't know how to troubleshoot past this point. The 1541 powers on and cycles like a normal floppy drive. When tightening the three screws on the case I broke the plastic. There aren't any other hidden problems like bent or broken pins. There was never any sound when it turns on.