Sony MEX-1GP User 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 aerial does not extend.

The power 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 car telephone
is connected to the ATT lead) is activated.

• The position of the fader control “FAD” is not set for

a 2-speaker system.

• The CD changer is incompatible with the disc format

(MP3/WMA/ATRAC CD).

t Play back with a Sony MP3 compatible CD

changer, or this unit.

No beep sound.

• The beep sound is cancelled (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 connecting lead or battery has been

disconnected.

• The power connecting lead is not connected properly.

Stored stations and correct time are erased.
The fuse has blown.
Makes noise when the position of the ignition
key is switched.

The leads are not matched correctly with the car’s
accessory power connector.

•  Lead-free solder is used for soldering certain parts.
  (more than 80 %)
•  Halogenated flame retardants are not used in the
  certain printed wiring boards.
•  Halogenated flame retardants are not used in
cabinets.
•  VOC (Volatile Organic Compound)-free vegetable
  oil based ink is used for printing the carton.
•  Packaging cushions do not use polystyrene foam.

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.

• The connectors are dirty (page 17).

DSO does not function.

Depending on the type of car interior or type of music,
DSO may not have a desirable effect.

CD/MD playback

The disc cannot be loaded.

• Another disc is already loaded.
• 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).

MP3/WMA files cannot be played back.

The disc is incompatible with the MP3/WMA format
and version (page 15).

MP3/WMA 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 ATRAC CD cannot play.

• The disc is not created by authorized software, such

as SonicStage or SonicStage Simple Burner.

• Tracks that are not included in the group cannot be

played.

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 13) or press (SCRL) on

the card remote commander.

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).

“MS” or “MD” does not appear on the source
display when both the optional MGS-X1 and
MD changer are connected.

This unit recognises MGS-X1 as an MD unit.
t Press (SOURCE) until “MS” or “MD” appears,

then press (MODE) repeatedly.

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