Sony MEX-BT4000P Operating Instructions - Page 42

Troubleshooting, General, Radio reception - box

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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. For details on using the fuse and removing the unit from the dashboard, refer to the installation/connections manual supplied with this unit. If the problem is not solved, visit the support site on the back cover. General No power is being supplied to the unit.  Check the connection or fuse.  If the unit is turned off and the display disappears, the unit cannot be operated with the remote commander. - Turn on the unit. The power antenna (aerial) does not extend.  The power antenna (aerial) does not have a relay box. No sound.  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 "FADER" is not set for a 2-speaker system. No beep sound.  The beep sound is cancelled (page 34).  An optional power amplifier is connected and you are not using the built-in amplifier. The contents of the memory have been erased.  The power supply lead or battery has been disconnected or 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 42 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 34). The display disappears from/does not appear in the display window.  The dimmer is set to "DIM-ON" (page 35).  The display disappears if you press and hold Press on the unit until the display appears.  The connectors are dirty (page 40). 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. Radio reception 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 a 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.

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42
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.
For details on using the fuse and removing the
unit from the dashboard, refer to the
installation/connections manual supplied with
this unit.
If the problem is not solved, visit the support
site on the back cover.
General
No power is being supplied to the unit.
Check the connection or fuse.
If the unit is turned off and the display
disappears, the unit cannot be operated with
the remote commander.
–
Turn on the unit.
The power antenna (aerial) does not extend.
The power antenna (aerial) does not have a
relay box.
No sound.
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 “FADER” is
not set for a 2-speaker system.
No beep sound.
The beep sound is cancelled (page 34).
An optional power amplifier is connected and
you are not using the built-in amplifier.
The contents of the memory have been
erased.
The power supply lead or battery has been
disconnected or 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.
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 34).
The display disappears from/does not
appear in the display window.
The dimmer is set to “DIM-ON” (page 35).
The display disappears if you press and hold

.
– Press

on the unit until the
display appears.
The connectors are dirty (page 40).
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.
Radio reception
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 a
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.