Troubleshooting - Sony Bravia KDL-40BX420 Operating Instructions Manual

Troubleshooting

Check whether the 1 (standby) indicator is
flashing in red.
When it is flashing
The self-diagnosis function is activated.
1 Count how many times the 1 (standby)
indicator flashes between each three second
break.
For example, the indicator flashes three times, then
there is a three second break, followed by another three
flashes, etc.
2 Press 1 on the TV to turn it off, disconnect
the AC power cord, and inform your dealer or
Sony service centre of how the indicator
flashes (number of flashes).
When it is not flashing
1
Check the items listed below.
2 If the problem still persists, have your TV
serviced by qualified service personnel.
Picture
No picture (screen is dark) and no sound
• Check the antenna/cable connection.
• Connect the TV to the AC power outlet, and press 1 on
the TV.
• If the 1 (standby) indicator lights up in red, press "/1.
No picture or no menu information from equipment
connected to the video input jack appears on the
screen
• Press to display the connected equipment list, then
select the desired input.
• Check the connection between the optional equipment and
the TV.
Double images or ghosting
• Check the antenna/cable connection, location or direction.
Only snow and noise appear on the screen
• Check if the antenna is broken or bent.
• Check if the antenna has reached the end of its serviceable
life (three to five years in normal use, one to two years at
the seaside).
Distorted picture (dotted lines or stripes)
• Keep the TV away from electrical noise sources such as
cars, motorcycles, hair-dryers or optional equipment.
• When installing optional equipment, leave some space
between the optional equipment and the TV.
• Check the antenna/cable connection.
• Keep the antenna cable away from other connecting
cables.
Picture or sound noise when viewing a TV channel
• Adjust "AFT" (Automatic Fine Tuning) to obtain better
picture reception (page 26).
34
GB
Some tiny black points and/or bright points appear
on the screen
• The picture of a display unit is composed of pixels. Tiny
black points and/or bright points (pixels) on the screen do
not indicate a malfunction.
Picture contours are distorted
• Change the current setting of "Cinema Drive" to other
settings (page 21).
No colour on programmes
• Select "Reset" (page 21).
No colour or irregular colour when viewing a signal
from the Y, P /C , P /C
B B R R
• Check the connection of the Y, P
/ and check if each jacks are firmly seated in their
respective jacks.
No picture from the connected equipment appears
on the screen
• Turn the connected equipment on.
• Check the cable connection.
• Press to display the connected equipment list, then
select the desired input.
• Correctly insert the memory card or other storage device
in the digital still camera.
• Use a digital still camera memory card or other storage
device that has been formatted according to the instruction
manual supplied with the digital still camera.
• Operations are not guaranteed for all USB devices. Also,
operations differ depending on the features of the USB
device and the video being played.
Cannot select the connected equipment on the
menu or cannot switch the input
• Check the cable connection.
Sound
No sound, but good picture
• Press 2 +/– or % (Mute).
• Check if the "Speakers" is set to "TV Speakers" (page 23).
No sound or noisy sound
• Check if the TV system setting is appropriate (page 26).
Channels
The desired channel cannot be selected
• Switch between digital and analogue mode and select the
desired digital/analogue channel.
Some channels are blank
• The channel is for scrambled/subscription service only.
Subscribe to a pay TV service.
• Channel is used only for data (no picture or sound).
• Contact the broadcaster for transmission details.
Digital channels are not displayed
• Contact a local installer to find out if digital transmissions
are provided in your area.
• Upgrade to a higher gain aerial.
jacks of /
/C , P /C jacks of
B B R R