There is no sound.
The USB device is not inserted correctly. Turn off the system, then reinsert the USB device and check if “USB MEMORY” is displayed.
The sound is distorted.
The bit rate used when encoding the MP3 files was low. Send MP3 files encoded with higher bit rates to the USB device.
There is noise or the sound skips.
Turn off the system, then reinsert the USB device.
The music data itself contains noise. Noise may have been introduced when creating music data due to the conditions of the computer. Create the music data again.
Copy the files to your computer, format the USB device in FAT12, FAT16, or FAT32 format, and copy the files to the USB device again.*
The USB device cannot be inserted into the 
(USB) port .
The USB device is being inserted backwards. Insert the USB device in the correct orientation.
The USB device which has been used on another device does not work.
It may be recorded in an unsupported format. If so, first take the precaution of backing up important files on the USB device by copying them to your computer hard disk. Next, format the USB device with a FAT12, FAT16, or FAT32 file system and transfer the
“Reading” is displayed for a long time.
It may take a while to finish reading the USB device if there are many albums or tracks on it. Thus, we recommend following these guidelines.
Total albums on USB device: 100 or less
Total tracks per album: 100 or less
Erroneous display
Send the music data to the USB device again, as the data stored in the USB device may have been corrupted.
The character codes that can be displayed by this system are numbers and alphabet only. Other characters appear as “*”.