Troubleshooting - Sony BRAVIA XBR-48A9S Reference Manual

Detaching the Table-Top Stand from
the TV
To detach the Table-Top Stand from the TV,
remove the screws
Note
• Do not remove the Table-Top Stand for any
reason other than to install corresponding
accessories on the TV.
• Be sure the TV is vertical before turning on. To
avoid uneven picture uniformity do not power
on the TV with the panel facing down.
• When attaching the Table-Top Stand again, be
sure to fasten the screws (previously removed)
to the original holes on the rear of the TV.

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 for about
five seconds. The TV will restart. If the TV
does not recover, try unplugging the AC
power cord. Then press the power
button on the TV, and release it. Wait for
two minutes, and plug in the AC power
cord.
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. Sony
recommends you to keep your TV
software updated. Software updates
provide new features and performance
improvements.
4
Visit Sony support website (information
provided at the end of this manual).
5
Perform the factory data reset.
10
US
.
When you plug in the 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.
How to reset the TV to factory settings
WARNING: The reset will clear all of your
customized settings including the parental
lock setting.
• You can reset the TV to factory settings by
selecting [Factory data reset]. How to
select [Factory data reset], refer to the
Help Guide.
• To force factory data reset, unplug the AC
power cord. Press and hold  button on
the TV, then plug in the AC power cord.
• For security purposes, be sure to remove
all personal and account information
before discarding, selling or passing your
TV to someone else by: unlinking/
unregistering, signing out of and
deactivating all network services as well
as factory reset the TV.
The remote control does not function.
• Replace the batteries.
The parental lock password has been
forgotten.
• Enter 4357 for the PIN and enter the new
PIN.
The restricted profile password has been
forgotten.
• Perform the force factory data reset.
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. To reduce image retention, we
recommend that you turn off the TV
normally by pressing the power button on
the remote control or the TV.