25
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.
If the problem is not solved, visit the following
support site.
General
No power is being supplied to the unit.
• Check the connection or fuse.
• If the unit is turned off and the display disappears, it
cannot be operated with the remote commander.
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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 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 canceled (page 20).
• 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.
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Store again into the memory.
• The power supply lead or battery has been
disconnected or it 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 boat’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.
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Set “DEMO-OFF” (page 20).
The display disappears from/does not appear
in the display window.
• The dimmer is set “DIMMER-ON” (page 20).
• The display disappears if you press and hold
(SOURCE/OFF)
.
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Press
(SOURCE/OFF)
on the unit until the
display appears.
• The connectors are dirty (page 23).
Support site
http://esupport.sony.com
http://www.sony.com/mobileAV
The Auto Off function does not operate.
The unit is turned on. The Auto Off function activates
after turning off the unit.
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Turn off the unit.
DSO does not function.
• Depending on the type of boat interior or type of
music, DSO may not have a desirable effect.
Radio reception
The stations cannot be received.
The sound is hampered by noises.
• The connection is not correct.
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Connect a power antenna (aerial) control lead
(blue) or accessory power supply lead (red) to the
power supply lead of a boat’s antenna (aerial)
booster (only when your boat has built-in FM/
AM antenna (aerial)).
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Check the connection of the boat antenna (aerial).
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If the auto antenna (aerial) will not go up, check
the connection of the power antenna (aerial)
control lead.
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When the DSO mode is on, the sound is
sometimes hampered by noises.
Set the DSO mode to “OFF” (page 19).
Preset tuning is not possible.
• Store the correct frequency in the memory.
• The broadcast signal is too weak.
Automatic tuning is not possible.
• Setting of the local seek mode is not correct.
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Tuning stops too frequently:
Set “LOCAL-ON” (page 20).
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Tuning does not stop at a station:
Set “LOCAL-OFF” (page 20).
• The broadcast signal is too weak.
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Perform manual tuning.
During FM reception, the “ST” indication
flashes.
• Tune in the frequency accurately.
• The broadcast signal is too weak.
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Set “MONO-ON” (page 20).
An FM program broadcast in stereo is heard in
monaural.
The unit is in monaural reception mode.
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Set “MONO-OFF” (page 20).
USB playback
You cannot play back items via a USB hub.
This unit cannot recognize USB devices via a USB
hub.
Cannot play back items.
A USB device does not work.
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Reconnect it.
The USB device takes longer to play back.
The USB device contains files with a complicated tree
structure.
continue to next page
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