Toshiba 47VL800A, Owner'S Manual

Page: 72 / 80

72
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 press
!
or
1
�
• The remote control batteries may be dead.
Replace the batteries�
No picture, no sound
• Check the antenna connections.
No sound, picture OK
• The sound may be muted. Press
2
+,
2
– or �
• 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 antenna 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�
Some pixels on the screen do not light up
• The LCD display panel is manufactured using an
extremely high level of precision technology, however,
sometimes some pixels on the screen may be missing
picture elements or have luminous spots� This is not a
sign of a malfunction�
The picture brightness varies when you
switch the TV on.
• If you switch the TV on at 0°C or below, wait until it
warms up�
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 a 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 the TV
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 -
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 �
• 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 13 to reset data.
Programme Timer does not operate properly.
• Check the aerial connections.
• Weak signal may cause inaccurate time information.
Do not remember PIN (See the PIN Setting menu step 1)
• Use the Master PIN (code of 1276), then change to a
number of your choice� Ensure that no-one else can use
the Master PIN by removing the Owner’s Manual�
3D problems
• If 3D images are not correct, the 3D format may be different�
Change the 3D format from Quick Menu (
-
page 33)�
• The left and right sides of 3D images may be reversed.
Switch the left and right (
-
page 35)�
• If 2D images are not correct, the 2D format may be
different� Change the 2D format from Quick Menu
(
-
page 33)�
110809c1_47VL800A_En.indb 72 11.8.9 12:59:38