Troubleshooting - Sony WX-VX55S Operating Instructions Manual

Troubleshooting

The following checklist will help you remedy
problems you may encounter with your unit.
Before going through the checklist below, check the
connection and operating procedures.
General
No power is being supplied to the unit.
• Check the connection. If everything is in order, check
the fuse.
• If the unit is turned off and the display disappears, it
cannot be operated with the remote commander.
t Turn on the unit.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a relay box.
No sound.
• The volume is too low.
• The ATT function is activated, or the Telephone ATT
function (when the interface cable of a telephone is
connected to the ATT lead) is activated.
• The position of the fader control "FAD" is not set for
a 2-speaker system.
No beep sound.
• The beep sound is canceled (page 12).
• An optional power amplifier is connected and you are
not using the built-in amplifier.
The contents of the memory have been erased.
• The RESET button has been pressed.
t Store again into the memory.
• The power supply lead or battery has been
disconnected.
• The power supply lead is not connected properly.
Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition
is switched.
The leads are not matched correctly with the car's
accessory power connector.
The display disappears from/does not appear
in the display window.
• The dimmer is set "DIM-ON" (page 12).
• The display disappears if you press and hold (OFF).
t Press and hold (OFF) on the unit until the
display appears.
Card remote commander operation is not
possible.
Make sure the insulation film has been removed
(page 4).
CD/VCD playback
The disc cannot be loaded.
Another disc is already loaded.
t The disc has been forcibly inserted upside down or
in the wrong way.
The disc does not playback.
• Defective or dirty disc.
• The CD-Rs/CD-RWs are not for audio use (page 15).
18
MP3 files cannot be played back.
The disc is incompatible with the MP3 format and
version (page 15).
MP3 files take longer to play back than others.
The following discs take a longer time to start
playback.
– a disc recorded with a complicated tree structure.
– a disc recorded in Multi Session.
– a disc to which data can be added.
The display items do not scroll.
• For discs with very many characters, those may not
scroll.
• "A.SCRL" is set to "OFF".
t Set "A.SCRL-ON" (page 12) or press (SCRL).
The sound skips.
• Installation is not correct.
t Install the unit at an angle of less than 45° in a
sturdy part of the car.
• Defective or dirty disc.
The operation buttons do not function.
The disc will not eject.
Press the RESET button (page 4).
No picture.
• Turn on the TV.
• Select the video input on the TV so that you can view
the pictures from this unit.
• The TV is on while driving.
t The pictures appear only while the car is parked
and the parking brake is set.
The picture noise appears.
• Defective or dirty disc.
• The colour system setting is incorrect.
t Set the colour system to "PAL" or "NTSC"
according to the connected TV (page 12).
The menu screen does not appear.
• The Video CD does not feature PBC function.
• The PBC function is set to off.
t Set the PBC function to on (page 10).
The sound loses stereo effect.
The sound select is set to "MONO-L" or "MONO-R."
t Set the sound select to "STEREO" (page 10).
Tape playback
The sound is distorted.
The tape head is contaminated.
t Clean the head with a commercially available dry-
tape cleaning cassette.
The AMS does not operate correctly.
• There is noise in the space between tracks.
• A blank space is too short (less than 4 seconds).
• A long pause, or a passage of low frequencies or very
low sound level is treated as a blank space.