Troubleshooting; Troubles And Solutions - Sony BRAVIA KD-77A1 Reference Manual

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
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.
Updating...
Do not unplug the 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 mains lead
for three minutes, then turn on the TV.
If the problem persists, disconnect the mains
lead, and contact your dealer or Sony service
centre with the number of times the illumination
LED flashes.
Terrestrial/cable service cannot be received.

Check the antenna (aerial)/cable connection and
booster settings.

Select terrestrial/cable service by pressing
DIGITAL/ANALOG on the remote control. If the
broadcasting service is not displayed, press TV
and then press DIGITAL/ANALOG.

Terrestrial signal might be suppressed if there is a
strong signal supplied nearby. Set [LNA (CH ---)]
to [Off] in digital tuning settings.

After moving to a new house or trying to receive
new services, attempt a service search by
selecting [Digital Tuning].
Satellite service cannot be received.

Check the satellite cable connection.

When [No signal. LNB overload detected...]
message is displayed, unplug the mains lead.
Then, ensure the satellite cable is not damaged
and the satellite signal line is not short-circuited
in the satellite connector.
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.
GB
17 GB