Sony MHC-V42D Help Manual page 5

There is severe hum or noise.
The remote control does not function.
The color irregularity on a TV screen persists.
[CHILD LOCK] appears when you use any control on the system.
A clicking sound is heard when the system is turned on.
Disc/USB Playback
The disc tray does not open and [LOCKED] appears on the display.
The disc tray does not close.
The disc does not eject.
Playback does not start.
The sound skips during disc playback.
Playback does not start from the first track/file.
You cannot perform some functions such as Stop, Lock Search, Slow-motion Play, Repeat Play, or Shuffle Play.
Files cannot be played back.
The folder name, track name, file name and ID3 tag characters do not appear properly.
There is no sound during USB playback.
There is noise, skipping, or distorted sound during USB playback.
[READING] is displayed for an extended time, or it takes a long time before playback starts.
[NO FILE] appears on the display.
[OVER CURRENT] appears on the display.
The USB device is not recognized.
There is no picture.
Picture noise appears.
The aspect ratio of the TV screen cannot be changed.
The language for sound track, subtitles, or camera angles cannot be changed.
The subtitles cannot be turned off.
USB Transfer
Transferring results in an error.
Audio files or folders on the USB device cannot be erased.
BLUETOOTH Connection
5