Toshiba 37AV500A, 32AV500A, 42AV500A manual Reference section, Troubleshooting, 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 or .

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 +, – 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 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.

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.

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.batteries.

The picture brightness varies when you switch the TV on.

If you switch the TV on at 0°C and under, wait until the warms up.

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.

Symptom and solution - digital only -

Poor picture

Check the antenna connections. Make sure it is aligned to the correct broadcast direction.

Check the signal level and quality in the Manual Search menu.

If you use any kind of amplifier to boost the signal level, check whether it works well, and ask for help from the antenna installer.

No picture

Use the Manual Search 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 +, – or .

Make sure the TV is adjusted to the correct Audio Track.

Use the Manual Search menu to rescan this channel.

Try another channel..

Not all channels are available after using the Full Search when tuning the TV for the first time.

This symptom is caused by unexpected frequency offset.

The Manual Search menu to scan for the missing channels. The TV scan receive these channels by the Full Search menu most of the time, but we suggest that you use the Manual Search menu when tuning the TV for the first time. Once the TV picks up the signal, all the transmission parameters will be stored in the internal memory.

Cannot lock signal by using Manual Search

Check the frequency that you have entered is exactly the Middle frequency of the wanted channel.

Refer to the solutions for “Poor picture”.

No Teletext, no Subtitle

Make sure the channel that you are watching carries

Teletext/Subtitle information from .

Cannot receive channels after moving the TV between cities (e.g. from Melbourne to Sydney)

Refer to page 13 to reset data.

Weak signal appears on one channel but not the other, but these channels have the same logical number

Please make sure that you do not keep duplicate channels (i.e. channels with the same logical channel number but different physical numbers, see page 13). If you do, please delete the duplicate ones and keep only one channel with the best signal strength.

Program Timer and Alarm do not operate properly.

Check the antenna connections.

Weak signal may cause inaccurate time information.

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Contents Page Contents Important Safety Instructions InstallationIntroduction Welcome to ToshibaNever stand or climb on the TV Precautions for installing on outdoor antennaUse Service Never repair, modify or disassemble the TV by yourselfCleaning Important informationConnecting an antenna Installing the remote control batteriesRemove the battery cover Getting startedTV front, control and side panel For the use of each control, see the pages in brackets26/ 32/ 37 TV Control panel 42 TVTV back panel connections Learning about the remote control When in TV modeWhen using Toshiba STB or DVD When using Toshiba DVDAbout DTV Menu Displaying the Digital TV/Analog TV Setup menu chartLearning about the menu system Switching on the TV Switching off the TVTurning the TV on About ATV MenuTuning the TV for the first time Programming channels into the TV’s channel memoryManual Search digital only Sorting program position From the SET UP menu, Press and or to select Favorite ChannelSetting the On-Screen-Display Time Watching TV programsViewing Digital programs digital only Selecting the menu languageSelecting the picture size Using the TV’s features GeneralPicture adjustment Using the picture still Adjusting the picture position PC onlyAutomatically Adjusting the picture position Selecting the picture modeSelecting the color temperature Using the active backlight controlUsing the cinema mode Activating the DNR Digital Noise ReductionSound adjustment Selecting the dual 1 or dual 2 modeAdjusting the sound quality Selecting the stereo programs analog onlyTimers Using the Bass BoostSetting the Current Time Setting the Wakeup TimerSetting up the teletext mode Selecting the video input source to viewTeletext in Analog TV Teletext general informationUsing Auto mode Using List modeTeletext buttons on the remote control Press to return to the 100 page or initialReset all default setting Reset to default and pressThis will do Reset to default, Are you sure? Teletext in Digital TVOther Digital TV features and settings Setting the EPG Electronic Program guidePassword Parental RatingSelecting The Audio Mode AV ConnectionSubtitle Audio PreferenceConnecting your TV Connecting an audio system digital onlyBack connections Connection exampleSide connections Connecting an Hdmi or a DVI deviceConnecting an amplifier equipped with an Mpeg decoder Connecting a computer Connecting an Hdmi deviceConnecting a DVI device One Hdmi cable type a connectorUsing the PC setting PC of the Auto AdjustSignal names for mini D-sub 15 pin connector Press and press to select Auto adjustTroubleshooting Symptom and solutionSymptom and solution digital only Reference sectionAppendix Australian Parental Guidance Codes NormativeSpecifications Broadcast systemBroadcast transmission systems of each country or region Integrated Digital LCD TVOperating condition Page Page