Why “USB” is not displayed on the OSD menu of my Marantz M-ER803 when a USB memory device is connected?
- SShannon MoralesSep 10, 2025
The OSD screen is only displayed when a USB memory device is connected to the USB2 port on the rear panel. Set the input source to “DISC/USB2”. The set may not recognize the USB memory device, so check the connection. Ensure a USB memory device conforming to mass storage class is connected, and not via a USB hub.













