Sony BRAVIA 55A1, Reference Manual

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19 GB
GB
Troubleshooting
General troubleshooting for issues like: black
screen, no sound, frozen picture, TV does not
respond, or network is lost, do the following
steps.
1
Restart your TV by pressing the power button
on the remote control until a message
appears. The TV will restart. If the TV does not
recover, try unplugging the TV from the AC
power cord (mains lead) for three minutes
and then plug it in again.
2
Refer to the Help menu by pressing HELP on
the remote control.
3
Connect your TV to the Internet and perform
a software update.
4
Visit Sony support website (information
provided on the back cover).
When [A new TV system software update is
available…] message is displayed.
Sony strongly recommends you to update the
TV software by selecting [Update Now]. These
software updates improve your TV performance
or add new features.
The following screen with [Updating…] will
appear and the illumination LED flashes white
while software is updating.
Do not unplug the AC power cord (mains lead)
during the software update. If you do, the
software update may not finish completely, and
it may cause a software malfunction. Software
updates can take up to 15 minutes.
When you plug in TV, the TV may not be able
to turn on for a while even if you press the
power button on the remote control or the TV.
It takes time to initialize the system. Wait for
about one minute, then operate it again.
Troubles and Solutions
When the illumination LED is flashing in red.

Count how many times it flashes (interval time is
three seconds).
Reboot the TV by disconnecting the AC power
cord (mains lead) for three minutes, then turn on
the TV.
If the problem persists, disconnect the AC power
cord (mains lead), and contact your dealer or Sony
service centre with the number of times the
illumination LED flashes.
There is no picture (screen is dark) and no
sound.

Check the antenna (aerial)/cable connection.

Connect the TV to the AC power (mains), and
press

on the TV or remote control.
Some programmes cannot be tuned.

Check the antenna (aerial)/cable connection.
The remote control does not function.

Replace the batteries.
The parental lock for broadcast password has
been forgotten.

Enter 9999 for the PIN code and select [Change
PIN Code].
The TV surrounds become warm.

When the TV is used for an extended period, the
TV surrounds become warm.
You may feel hot when touching there by the
hand.
The screen becomes darker while watching
TV.

If the whole image or part of the image remains
still, the screen brightness will be gradually
reduced to prevent image retention. This is not a
malfunction of the TV.
You are concerned about image retention.

If the same image is displayed repeatedly or for
long periods of time, image retention may occur.
You can manually perform a Panel refresh to
reduce image retention.
Note
• Perform Panel refresh only when image retention is
particularly noticeable. As a reference, perform it only
once a year. Avoid performing it more than once a
year because it may affect the usable life of the panel.
• Images that include clocks, logos and bright colours
(including white) easily cause image retention. Avoid
displaying these types of images for long periods of
time, otherwise image retention may occur.
Updating...