Reference Section; Troubleshooting; Symptom And Solution; Broadcast System - Toshiba 42WL68A Owner's Manual

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, then press !
and 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 Y, y or u.
• The station may have broadcast difficulties. Try another
channel.
• Check that the Speaker function in SOUND menu is
properly set.
Poor sound, picture OK
• The station may have broadcast difficulties. Try another
channel.
Poor picture, sound OK
• Check the antenna connections.
• The station may have broadcast difficulties. Try another
channel.
• Adjust the PICTURE menu.
Poor reception of broadcast channels
• Check the antenna connections.
• The station may have broadcast difficulties. Try another
channel.
• Make sure the Color system is properly set.
Teletext problems
• Check the antenna connections.
Good performance of text depends on a good strong
broadcast signal.
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 a malfunction.
The brightness of the screen comes down, or flickers
of the screen are caused, or some parts of the screen
do not light up.
• When you just buy and start to use this TV, a flickering
may be caused in the screen. In this case, switch off the
TV, then switch on it again to cure the condition.
• The cold cathode fluorescent lamp used for the back light
on this TV has longevity. When the brightness of the
screen comes down, or the flickers of the screen are
caused, or some parts of the screen do not light up, it may
reach the end of its life. Contact a service technician.
The picture brightness varies when you display
switch the TV on.
• If you switch the TV on at 0°C and under, wait until the
warms up.

Reference section

Multiple images
• The station may have broadcast difficulties. Try another
channel.
• Antenna reception may be poor. Use a high directional
outdoor antenna.
• Check if the direction of the antenna has changed.
Poor color or no color
• The station may have broadcast difficulties. Try another
channel.
• Adjust the Tint and/or Color 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/STB/DVD switch on the remote
control is properly set.

Broadcast system

Broadcast transmission systems of each
country or region
Asia M.E.
Country or region
Bahrain, Kuwait, Israel, Oman,
Qatar, United Arab Emirates,
Yemen, etc. Indonesia, Malaysia,
Singapore, Thailand, etc.
China
China Hong Kong
Iraq, Islamic Republic of Iran,
Lebanon, Saudi Arabia, etc.
Russian Federation, etc.
Myanmar, etc.
Oceania
Country or region
Australia, New Zealand, etc.
Africa
Country or region
Republic of South Africa, etc.
South America
Country or region
Argentina, Paraguay, Uruguay, etc.
Brazil
Chile, Colombia, etc.
Note:
PAL, SECAM and NTSC 3.58 (MHz) are different color signal
broadcast transmission systems applicable to different
countries or region. NTSC 4.43 (MHz) is used in special VCRs
to playback NTSC recorded video tapes through PAL
television equipment.
Color Sound
PAL B/G
PAL D/K
PAL I
SECAM B/G
SECAM D/K
NTSC M
Color Sound
PAL B/G
Color Sound
PAL I
Color Sound
PAL N
PAL M
NTSC M
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