Toshiba 42RV550A, Руководство пользователя

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Toshiba 42/46XV550A
39
Reference section
Troubleshooting
Before calling a service technician, please check the following
table for a possible cause of the symptom and some solutions.
Symptom and solution
TV will not turn on
• Make sure the power cord is plugged in, and then press
!
or
1
.
• The remote control batteries may be dead. Replace the
batteries.
No picture, no sound
• Check the aerial connections.
No sound, picture OK
• The sound may be muted. Press
2
+,
2
– or
U
.
• The station may have broadcast difficulties. Try another
channel.
Poor sound, picture OK
• The station may have broadcast difficulties. Try another
channel.
Poor picture, sound OK
• Check the aerial connections.
• The station may have broadcast difficulties. Try another
channel.
• Adjust the PICTURE menu.
Poor reception of broadcast channels
• Check the aerial connections.
• The station may have broadcast difficulties. Try another
channel.
• Make sure the Colour system is properly set.
Teletext problems
• Check the aerial connections.
Good performance of text depends on a good strong
broadcast signal.
Multiple images
• The station may have broadcast difficulties. Try another
channel.
• Aerial reception may be poor. Use a high directional
outdoor aerial.
• Check if the direction of the aerial has changed.
Poor colour or no colour
• The station may have broadcast difficulties. Try another
channel.
• Adjust the
Tint
and/or
Colour
in the
PICTURE
menu.
The remote control does not operate
• Remove all obstructions between the remote control and
the remote control sensor on the TV.
• The remote control batteries may be dead. Replace them
with new ones.
• Check that the TV/REGZA-LINK/DVD switch on the
remote control is properly set.
Some pixels of the screen do not light up
• The LCD display panel is manufactured using an
extremely high level of precision technology; however,
sometimes some pixels of the screen may be missing
picture elements or have luminous spots. This is not a sign
of malfunction.
The picture brightness varies when you switch the
TV on.
• If you switch the TV on at 0°C and under, wait until it
warms up.
The screen’s brightness decreases, flicker occurs,
or some parts of the screen do not light up.
• When first start to use this TV, flickering may occur on the
screen. In this case, switch off the TV, and then switch on
it again to resolve this issue.
• The cold cathode fluorescent lamp used for the back light
on this TV has a certain lifespan. When the brightness of
the screen decreases, flickers on the screen occur, or some
parts of the screen do not light up, it may have reached the
end of its life. Contact a service technician.
No REGZA-LINK operation
• The REGZA-LINK feature is available for Toshiba
REGZA-LINK compatible devices.
• Make sure HDMI cables with the HDMI logo are used.
• When connected REGZA-LINK device does not work
correctly after you have changed device settings, turn off
your TV and unplug the power cord. Then plug in and turn
on again.
• If several devices are connected, the REGZA-LINK
feature may not operate properly.
• Read the owner’s manual furnished with the connected
REGZA-LINK device.
Symptom and solution
- digital only -
Poor picture
• Check the aerial connections. Make sure it is aligned to
the correct broadcast direction.
• Check the signal level and quality in the
DTV Manual
Tuning menu.
• If you use any kind of amplifier to boost the signal level,
check whether it is working correctly, and ask for help
from the aerial installer.
No picture
• Use the DTV Manual Tuning menu to rescan this
channel.
• Try another channel.
• Reduce
RF amplifier gain if connected to RF booster.
No sound from DIGITAL AUDIO
• The sound may be muted. Press
2
+,
2
- or
U
.
• Use the
DTV Manual Tuning
menu to rescan this
channel.
• Try another channel.
Not all channels are available after Auto Tuning
when tuning the TV for the first time.
• This symptom is caused by unexpected frequency offset.
• Use the
DTV Manual Tuning menu to scan for the
missing channels. Once the TV picks up the signal, all the
transmission parameters will be stored in internal
memory.
Cannot lock signal when using Manual Tuning
• Refer to the solutions for “Poor picture”.
No Teletext, no Subtitles
• Make sure the channel that you are watching carries
Teletext/Subtitles information by checking the on-screen
information.
Cannot receive channels after moving the TV
between cities (e.g. from Melbourne to Sydney)
• Refer to page 12 to reset data.
Programme Timer does not operate properly.
• Check the aerial connections.
• Weak signal may cause inaccurate time information.
Do not remember PIN
• Please contact your local dealer.
Asia_4246XV550A.book Page 39 Tuesday, September 16, 2008 3:03 PM