Radio Reception - Sony MEX-BT4150U Operating Instructions Manual

Bluetooth audio system
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The contents of the memory have been
erased.
 The power supply lead or battery has been
disconnected or not connected properly.
 The unit is reset.
– Store again in the memory.
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.
During playback or reception,
demonstration mode starts.
 If no operation is performed for 5 minutes
with "DEMO-ON" set, demonstration mode
starts.
– Set "DEMO-OFF" (page 33).
The display disappears from/does not
appear in the display window.
 The dimmer is set to "DIM-ON" (page 33).
 The display disappears if you press and hold
.
– Press  on the unit until the
display appears.
 The connectors are dirty (page 37).
The Auto Off function does not operate.
 The unit is turned on. The Auto Off function
activates after turning off the unit.
– Turn off the unit.
The display disappears while the unit is
operating.
 The Black Out function is set to on (page 33).
The operation buttons do not function.
The disc will not eject.
 Press  and
more than 2 seconds.
The contents stored in memory are erased.
For your safety, do not perform the reset
operation while you are driving.
(BACK)/ for

Radio reception

The stations cannot be received.
The sound is hampered by noises.
 The connection is not correct.
– Connect an REM OUT lead (blue/white
striped) or accessory power supply lead (red)
to the power supply lead of a car's antenna
(aerial) booster (only when your car has
built-in radio antenna (aerial) in the rear/
side glass).
– Check the connection of the car antenna
(aerial).
– If the auto antenna (aerial) will not go up,
check the connection of the power antenna
(aerial) control lead.
Preset tuning is not possible.
 Store the correct frequency in the memory.
 The broadcast signal is too weak.
Automatic tuning is not possible.
 The broadcast signal is too weak.
– Perform manual tuning.
RDS
PTY displays "- - - - - - - -."
 The current station is not an RDS station.
 RDS data has not been received.
 The station does not specify the program type.
CD 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 play back.
 Defective or dirty disc.
 The CD-Rs/CD-RWs are not for audio use
(page 35).
MP3/WMA/AAC files cannot be played back.
 The disc is incompatible with the MP3/WMA/
AAC format and version. For details on
playable discs and formats, visit the support
site.
39

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