“OVER CURRENT” appears.
•A problem has been detected with the
level of electrical current from the 
(USB) port. Turn off the system and
remove the USB device from the 
(USB) port. Make sure there is no problem with the USB device. If this display pattern persists, contact your nearest Sony dealer.
There is no sound.
•The USB device is not connected correctly. Turn off the system and reconnect the USB device, then turn on the system and check if “USB MEMORY” lights up in the display.
There is noise, skipping, or distorted sound.
•Turn off the system and reconnect the USB device, then turn on the system.
•The music data itself contains noise, or the sound is distorted. Noise may have entered during the transferring process. Delete the file, and try transferring again.
The USB device cannot be connected into the 
(USB) port.
•The USB device is being connected backwards. Connect the USB device in the correct orientation.
“READING” is displayed for an extended time, or it takes a long time before playback starts.
•The reading process can take a long time in the following cases.
–There are many folders or files on the USB device.
–The file structure is extremely complex.
–The memory capacity is excessive.
–The internal memory is fragmented. Thus, we recommend following these guidelines.
–Total folders on USB device: 100 or less
–Total files per folder: 100 or less
Erroneous display.
•Send the audio files to the USB device again, as the audio files 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 are not displayed correctly.
The USB device is not recognized.
•Turn off the system and reconnect the USB device, then turn on the system.
•Connect the supported USB device (page 44).
•The USB device does not work properly. Refer to the USB device operation manual on how to deal with this problem.
Play does not start.
•Turn off the system and reconnect the USB device, then turn on the system.
•Connect the supported USB device (page 44).
•Press N (or NX on the unit) to start play.
Play does not start from the first file.
• Set the play mode to normal play mode.
Audio file cannot be played back.
•MP3 files in MP3 PRO format cannot be played back.
•Some AAC files may not be played back correctly.
•WMA files in Windows Media Audio Lossless and Professional format cannot be played back.
•USB device formatted with file systems other than FAT16 or FAT32 (Cluster size 512 byte – 32 kbyte) are unsupported.*
•If you use partitioned USB device, only audio files on the first partition can be played.
•Playback is possible up to 8 levels.
•The number of folders has exceeded 997.
Continued l
Others