Troubleshooting - Sony Bravia KLV-40S310A 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 1 (standby) indicator
flashes between each two second break.
For example, the indicator flashes three times, then
there is a two second break, followed by another
three flashes, etc.
2 Press 1 on the top edge of 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 top edge of 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
• 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.
• Check the antenna location and 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.
• Broadcast signals are too strong. Turn off or disconnect
the booster if it is in use.
Picture or sound noise when viewing a TV channel
• Select "Manual Programme Preset" in the "Channel Set-
up" menu and adjust "AFT" (Automatic Fine Tuning) to
obtain better picture reception (page 30).
• Select "Noise Reduction" in the "Picture" menu to reduce
the noise in the picture (page 20).
Good picture, but noisy sound
• The TV system setting is inappropriate.
• If the sound of all the channels are noisy, perform "Auto
Tuning" in the "Channel Set-up" menu to preset the
channel again (page 29).
• If the sound of some channels is noisy, select the channel,
then perform "Manual Programme Preset" in the
"Channel Set-up" menu, and select the appropriate TV
system ("TV System") (page 30).
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.
No colour on programmes
• Select "Reset" in the "Picture" menu to return to the
factory settings (page 19).
No colour or irregular colour when viewing a
signal from the Y, P /C , P
B B
or 2
• Check the connection of the Y, P
/ 1 or 2.
• Make sure that the Y, P /C
B B
2 are firmly seated in their respective jacks.
Picture flashes initially when changing to HDMI
mode or switching on the TV with HDMI mode
• This is probably caused by the authentication process
between HDMI equipment and the TV. It does not
indicate a malfunction.
Sound
No sound, but good picture
• Press 2 +/– or % (Mute).
• Check if the "Speaker" is set to "TV Speaker" from the
"AV Set-up" menu in "Set-up" menu (page 25).
Stereo broadcast sound switches on and off, or is
distorted; the sound switches between stereo and
monaural frequently
• The antenna connection is loose or the antenna cable is
damaged. Check the cable and connection on the TV,
VCR, and on the wall (page 4).
• Adjust the antenna direction for the minimum
interference. Contact a Sony dealer for advice.
• Signal transmission is low. Try using a booster.
Otherwise, use the fine tuning ("AFT") function
(page 30).
/C jacks of / 1
R R
/C , P /C jacks of
B B R R
, P /C jacks of / 1 or
R R
Continued
33
GB