CD Receiver Instruction Manual
17ENGLISH
Symptom Remedy/Cause
USB playback
“NO FILE” appears on the display. Check whether the device contains playable files.
Noise is generated. Skip to another file.
“NOT
SUPPORT” appears and track skips.
Check whether the track is a playable file format.
Tracks/folders are not played back in the 
order you have intended.
The playback order is determined by the file name. Folders with 
numbers on the initial of their names are sorted in numerical order. 
However, folders with no numbers on the initial of their names are 
sorted according to the file system of the USB device.
“CANNOT PLAY” flashes on the display. / 
“NO USB” appears on the display. / The 
unit cannot detect the USB device.
Check whether the connected USB device is compatible with this 
unit. / Reattach the USB device again.
While playing a track, sound is 
sometimes interrupted.
The tracks have not been properly copied into the USB device. Copy 
tracks again into the USB device, and try again.
iPod/iPhone playback
(For KD-R528/KD-A525/KD-R520)
The iPod does not turn on or does not 
work. 
Check the connecting cable and its connection. / Update the 
firmware version of the iPod/iPhone. / Charge the battery of 
the iPod/iPhone. / Reset the iPod/iPhone. / Check whether 
<IPOD SWITCH> setting is appropriate. (page 15)
The sound is distorted. Deactivate the equalizer either on this unit or the iPod/iPhone.
Noise is generated. Turn off (uncheck) the “VoiceOver” feature of the iPod. For details, 
visit <http://www.apple.com>.
Playback stops. The headphones are disconnected during playback. Restart the 
playback operation. (page 11)
“NO FILE” appears on the display. Check whether the device contains playable files.
“RESTRICTED” appears on the display. Check whether the connected iPod/iPhone is compatible with this 
unit. (page 12)
Additional information
• This unit can play back multi-session discs; however, 
unclosed sessions will be skipped while playing.
• This unit can play back files with the extension code 
<.mp3> or <.wma> (regardless of the letter 
case—upper/lower).
• This unit can play back the files meeting the conditions 
below:
  – Bit rate: MP3/WMA: 8 kbps — 320 kbps
 – Sampling frequency:
    MP3:  48 kHz, 44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz, 
16 kHz, 12 kHz, 11.025 kHz, 8 kHz
    WMA: 48 kHz, 44.1 kHz, 32 kHz, 22.05 kHz
• This unit can show WMA Tag and ID3 Tag Version 
1.0/1.1/2.2/2.3/2.4 (for MP3).
• The search function works but search speed is not 
constant.
• This unit can play back files recorded in VBR (variable 
bit rate). (Files recorded in VBR have a discrepancy in 
elapsed time indication.)
• The maximum number of characters for file/folder 
names vary depending on the disc format used (includes 
4 extension characters—<.mp3> or <.wma>).
  ISO 9660 Level 1 and 2, Romeo: 64 characters, Joliet: 
32 characters, Windows long file name: 64 characters
• This unit cannot play back the following files:
  – MP3 files: encoded in MP3i and MP3 PRO format; an 
inappropriate format; layer 1/2.
  – WMA files: encoded in lossless, professional, and 
voice format; not based upon Windows Media® 
Audio; copy-protected with DRM.
  – Files which have data such as AIFF, ATRAC3, etc.
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