Sony MEX-M70BT Owner's Manual
26
GB
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.
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.
If the unit is turned off and the display
If the unit is turned off and the display
disappears, the unit cannot be operated with the
remote commander.
Turn on the unit.
remote commander.
Turn on the unit.
No sound.
The position of the fader control [FADER] is not
The position of the fader control [FADER] is not
set for a 2-speaker system.
No beep sound.
An optional power amplifier is connected and
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
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 a noise when the position of the ignition
is switched.
The leads are not matched correctly with the
The fuse has blown.
Makes a noise when the position of the ignition
is switched.
The leads are not matched correctly with the
boat’s accessory power connector.
During playback or reception, the demonstration
mode starts.
If no operation is performed for 5 minutes with
mode starts.
If no operation is performed for 5 minutes with
[DEMO-ON] set, the demonstration mode starts.
Set [DEMO-OFF] (page 21).
Set [DEMO-OFF] (page 21).
The display disappears from/does not appear in
the display window.
The dimmer is set to [DIM-ON] (page 21).
the display window.
The dimmer is set to [DIM-ON] (page 21).
The display disappears if you press and hold OFF.
Press OFF on the unit until the display appears.
The connectors are dirty (page 24).
The operation buttons do not function.
The disc will not eject.
Press PTY/CAT and
The disc will not eject.
Press PTY/CAT and
(back)/MODE for more
than 2 seconds to reset the unit.
The contents stored in memory are erased.
For your safety, do not reset the unit while you
are driving.
The contents stored in memory are erased.
For your safety, do not reset the unit while you
are driving.
Radio reception
Stations cannot be received.
The sound is hampered by noises.
The connection is not correct.
The sound is hampered by noises.
The connection is not correct.
If your boat has built-in radio antenna (aerial)
in the rear/side glass, connect an REM OUT
lead (blue/white striped) or accessory power
supply lead (red) to the power supply lead of a
boat’s antenna (aerial) booster.
lead (blue/white striped) or accessory power
supply lead (red) to the power supply lead of a
boat’s antenna (aerial) booster.
Check the connection of the boat antenna
(aerial).
If the auto antenna (aerial) will not extend,
check the connection of the power antenna
(aerial) control lead.
(aerial) control lead.
The tuning step setting has been erased.
Set the tuning step again (page 8).
Preset tuning is not possible.
The broadcast signal is too weak.
The broadcast signal is too weak.
RDS
PTY displays [- - - - - - - -].
The current station is not an RDS station.
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 does not play back.
Defective or dirty disc.
Defective or dirty disc.
The CD-R/CD-RW is not for audio use (page 22).
MP3/WMA files cannot be played back.
The disc is incompatible with the MP3/WMA
The disc is incompatible with the MP3/WMA
format and version. For details on playable discs
and formats, visit the support site.
and formats, visit the support site.
MP3/WMA files take longer to play back than
others.
The following discs take a longer time to start
others.
The following discs take a longer time to start
playback.
A disc recorded with a complicated tree
A disc recorded with a complicated tree
structure.
A disc recorded in Multi Session.
A disc to which data can be added.
The sound skips.
Defective or dirty disc.
Defective or dirty disc.
USB playback
You cannot play back items via a USB hub.
This unit cannot recognize USB devices via a USB
This unit cannot recognize USB devices via a USB
hub.
A USB device takes longer to play back.
The USB device contains files with a complicated
The USB device contains files with a complicated
tree structure.