Sony XAV-V631BT Owner's Manual

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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, see “Connection/Installation”
(page 31).
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 fuse.

 The connection is not correct.

– Connect the yellow and red power supply

leads.

There is no beep sound.
 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 it is not connected properly.

Stored stations and correct time are erased.
The fuse has blown.
The unit makes noise when the position of the
ignition is switched.
 The leads are not matched correctly with the car’s

accessory power connector.