Yamaha RX-V373BL User Manual - Page 71
USB, Remote control, The unit does not detect the USB device.
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Problem Cause Your area is too far from the FM station transmitter. Radio stations cannot be selected automatically. The AM radio signal is weak. AM radio stations cannot be registered as presets. Auto Preset has been used. USB Problem The unit does not detect the USB device. Folders and files in the USB device cannot be viewed. Cause The USB device is not connected to the USB jack securely. The file system of the USB device is not FAT 16 or FAT 32. The folder structure not supported by the unit is applied. Remedy Select the station manually (p.40). Use an outdoor antenna. We recommend using a sensitive multi-element antenna. Adjust the AM antenna orientation. Select the station manually (p.40). Use an outdoor AM antenna. Connect it to the ANTENNA (AM) jack together with the supplied AM antenna. Auto Preset is for registering FM radio stations only. Register AM radio stations manually (p.41). Remedy Turn off the unit, reconnect your USB device, and turn the unit on again. Use a USB device with FAT 16 or FAT 32 format, except USB HDDs. The unit supports folder hierarchies of up to eight levels and up to 65,000 files per level. If necessary, modify the folder structure on your USB device. Remote control Problem The unit cannot be controlled using the remote control. Cause The unit is out of the operating range. The batteries are weak. The unit's remote control sensor is exposed to direct sunlight or strong lighting. The remote control IDs of the unit and the remote control are not identical. Remedy Use the remote control within the operating range (p.4). Replace with new batteries. Adjust the lighting angle, or reposition the unit. Change the remote control ID of the unit or the remote control (p.65). APPENDIX ➤ Troubleshooting En 71