Toshiba 47WL68A Reference section, Troubleshooting, Broadcast system, Symptom and solution

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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, 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.

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

Color

Sound

Bahrain, Kuwait, Israel, Oman,

PAL

B/G

Qatar, United Arab Emirates,

 

 

Yemen, etc. Indonesia, Malaysia,

 

 

Singapore, Thailand, etc.

 

 

China

PAL

D/K

 

 

 

China Hong Kong

PAL

I

 

 

 

Iraq, Islamic Republic of Iran,

SECAM

B/G

Lebanon, Saudi Arabia, etc.

 

 

 

 

 

Russian Federation, etc.

SECAM

D/K

 

 

 

Myanmar, etc.

NTSC

M

 

 

 

Oceania

 

 

Country or region

Color

Sound

Australia, New Zealand, etc.

PAL

B/G

 

 

 

Africa

 

 

 

 

 

Country or region

Color

Sound

Republic of South Africa, etc.

PAL

I

 

 

 

South America

 

 

 

 

 

Country or region

Color

Sound

Argentina, Paraguay, Uruguay, etc.

PAL

N

 

 

 

Brazil

PAL

M

 

 

 

Chile, Colombia, etc.

NTSC

M

 

 

 

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.

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Contents 47WL68A 47WL68E 47WL68T Contents Installation Important Safety InstructionsIntroduction Welcome to ToshibaPrecautions for installing on outdoor antenna Precautions for moving the TVUse Side viewNever repair, modify or disassemble the TV by yourself ServiceNever stand or climb on the TV Important information CleaningInstalling the remote control batteries Connecting an antennaRemove the battery cover Getting startedTV front view TV top, front and side panel controlsTV top view 14 o C2 Component Video Input terminals TV back panel connections12 o C1 Component Video Input terminals When in Teletext mode Learning about the remote controlWhen in TV mode Learning about the menu systemSwitching on the TV Displaying the menu chartSwitching off the TV Turning the TV onProgramming channels into the TV’s channel memory Watching TV programsPress to select the new position 4, then press Y Manually setting channels in the channel memorySorting program position Selecting the picture size Using the TV’s featuresPicture adjustment Adjusting the picture position Using the picture stillResetting the picture position Selecting the picture modeAdjusting the color management Selecting the color temperatureActivating the black stretch Activating the DNR Digital Noise ReductionSound adjustment Using the SRS WOW surround sound Adjusting the sound qualityUsing the stable sound Selecting the stereo programsOther features settings Adjusting the brightness of side panel Using the auto formatSelecting the video input source to view Activating blue screenSetting up the teletext mode Setting the manual setting menuAdjusting the teletext SW To select teletext modeUsing List mode Using Auto modeTeletext general information ButtonDisplaying the double-window Using the double-windowTeletext buttons on the remote control Headphone Selecting the headphone modeUsing a headphone Side connections Connecting your TVBack connections Connection exampleConnecting an Hdmi and a DVI device Connecting an Hdmi and a DVI deviceConnecting an Hdmi device Connecting a DVI deviceConnecting a computer Setting the HDMI1 audio modeFollowing signals can be displayed HDMI1 audioAdjusting the picture size/position Using the PC settingAdjusting the clock phase of the picture Adjusting the sampling clockSymptom and solution TroubleshootingReference section Broadcast systemLCD color television SpecificationsPage YC/J VX1A00034900