43
Troubleshooting
Problem Actions
Basics
Suddenly the power
lamp blinks/hear a
beep
The TV may have operated by detecting an
ambient sound. For details, see “Things you
should know” (P. 18).
Suddenly enters
mute/unmute or
turns on/off
Screen
Aspect ratio changes
unintentionally
Press “ ” to return to your settings. (P. 22)
Black or white
dots appear on the
screen
LCD panels use ne dots (“pixels”) to display
images.
While more than 99.99% of these pixels
function properly, a very small number of
pixels may not light, or may light all the time.
Please understand that this is not a
malfunction.
Picture
Poor picture quality
Change the “Picture Mode” setting. (P. 31)
Unnatural colour >>>
Adjust “Colour” and “Backlight”. (P. 31)
Check your “Colour System”. (P. 32)
Noise >>> Set to the following functions.
Picture Mode: Standard (P. 31)
Super DigiPure: Max (P. 31)
Dull picture >>> Set to the following functions.
Picture Mode: Bright (P. 31)
Super DigiPure: Off (P. 31)
Problem Actions
Picture
Strange picture
when using an
external device
If the top of the image is distorted, check the
video signal quality itself.
If movement appears unnatural when
receiving a signal from a DVD player etc.,
with 576p (625p), change the output setting
of the external device to 576i (625i).
Sound
Poor sound
Reset the “Sound” menu settings. (P. 32)
If receiving a poor signal in “Stereo/ t·u”,
switch to “v” (monaural). (P. 32)
Change the broadcasting system using
“Manual Scan”. (P. 36)
HDMI
Wrong screen size
Read the user manual of the connected
device and perform the following:
Check if the output setting of the device is
correct.
Change the signal format of the device to
other format.
Æ
Æ
No picture, no sound
Use the cable marked with HDMI logo.
No sound Check if the device is compliant with HDMI.
Green and distorted
screen
Wait a little for the signal to stabilise when
switching the signal format for an HDMI
device.
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