Panasonic TC-L42U22 Some spots remain, Bright or dark, Chaotic image, noisy, No image is, Cabinet

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If there is a problem with your TV, please refer to the table below to determine the symptoms, then carry out the suggested check. If this does not solve the problem, please contact your local Panasonic dealer, quoting the model number and serial number (both found on the rear of the TV).

 

Problem

 

Some spots remain

 

bright or dark

 

Chaotic image, noisy

Screen

No image is

displayed on screen

Only spots are displayed

 

instead of images

 

Neither image nor

 

sound is produced

 

Black Box appears

 

No sound is produced

Sound

Sound is unusual

 

 

Unknown sound heard

 

1- Sounds from TV

 

cabinet

 

2- Tick/Click sound

 

3- Buzzing sound

Other

The main unit is hot.

 

Actions

The LCD panel is made up of a few million pixels and is produced with advanced technology through an intricate process. Sometimes a few pixels may be bright or dark. These pixels do not indicate a defective panel and will have no impact on the performance of the TV.

Check nearby electrical products.

(car or motorcycle ignition systems, fluorescent lamp, etc.)

Check Picture menu (p. 24)

Check the cable connections.

Check that the correct input has been selected.

Check the channel settings. (p. 34)

Check the antenna cables.

Is the power cord plugged into the outlet?

Is the TV unit turned On?

Check Picture menu (p. 24) and volume.

Check the AV cable connections. (p. 9-10)

Check that the correct input has been selected. (p. 20)

Change settings of Closed caption (CC). (p. 36)

Are the speakers’ cables connected correctly? (p. 39)

Is “Sound Mute” active? (p. 11)

Is the volume set to the minimum?

Is “TV speakers” set to “Off”? (p. 24)

Change “SAP” settings. (p. 15)

Check “HDMI 1 in”, “HDMI 2 in” or “HDMI 3 in” settings. (p. 24)

Set “SAP” setting to “Stereo” or “Mono”.

Check the HDMI device connected to the unit.

Set the audio setting of the HDMI device to “Linear PCM”.

If digital sound connection has a problem, select analog sound connection.

1- Changes in the temperature and humidity of the room may cause the TV’s cabinet to expand or contract and produce metallic sounds. This is not a sign of faulty operation or a malfunction.

2- When the TV is powered on, an electrical component in the TV activates producing a tick/click sound. This is not a sign of faulty operation or a malfunction.

3- Electrical circuits are active while the TV set is on. This is not a sign of faulty operation or a malfunction.

The main unit radiates heat and some of the parts may become hot. This is not a problem for performance or quality.

Set up in a location with good ventilation.

Do not cover the ventilation holes of the TV with a tablecloth, etc., and do not place on top of other equipment.

Frequently Asked Questions FAQs, etc.

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Contents Viera English EspañolHDMI, the Hdmi logo and High Experience an amazing level of multimedia excitementContents Secure Ventilation Safety PrecautionsImportant Safety Instructions Consumerproducts@panasonic.com Responsible Party Panasonic Corporation of North AmericaContact Source VieraTune Into Safety Optional Accessory Accessories/Optional AccessoryAccessories Do not disassemble or modify the pedestal Attaching the pedestal to TVAntenna terminal Pin terminals Hdmi terminalCable Connecting Antenna To watch TVBasic Connection VHF/UHF AntennaPlayer AV cable connectionsAV Equipment Blu-ray Disc playerIdentifying Controls TV controls/indicatorsRemote control Power indicator on red, off no lightSelect your language First Time SetupTurn the TV On with the Power button Configure your viewing modeStart First Auto channel setup ANT/Cable setupAbout broadcasting systems Adjust the Clock Set clockComplete the First time setup Select the Input labels Label inputsTo watch TV and other functions Turn power onWatching TV Select a channel numberFavorite channel Favorite FeaturePress to exit from Using Viera ToolsDisplay Viera Tools Select the item Set each itemView Set Image viewer settings and select Play image viewer nowInsert the SD card Select the data to be viewedPhoto settings Label Example Display the Input select menu Select the input modeExample Enter TerminalSelect On Display the menu Select SetupSelect Viera Link settings Select Viera LinkPicture Displaying PC Screen on TVDisplay the Input select menu Select PCAdvanced How to Use Menu FunctionsAdjust or select Display the menuMenu list Picture AudioLock Sub menu list SetupHdmi cable Viera LinkTM Hdavi ControlTMViera LinkTM Connections Connecting this unit to a DVD recorder Diga and AV ampSetting of this unit after connection Unselected device energy save Select settingsDefault is On SetFor Recorder Transmittable data Recorder Home theater PlayerSelect Display the Viera Link menuSelect Speaker output Select Home theater or TV Select the equipment you want to accessRemote control, pointing it at the TV Available TV’s remote control buttonsLock Input your 4-digit passwordSelect the Lock mode PasswordTo select the channel or the rating of the program to lock Select Mode and set to Custom Select a channel to lockSelect Mode and set to On To change the passwordSelect the function Editing and Setting ChannelsSelect ANT/Cable setup Check signal strengthSelect Auto program Select a scanning mode pTo cancel the Edit Select ANTDisplay the menu Select Closed caption To make more in-depth display settings in digital programsTo reset the settings Closed CaptionSelect the terminal and label of the external equipment Input LabelsSelect Input labels Display labels of Connected devicesSet the timer Using TimerDisplay the menu Select Timer Select the timer to setConnect with Selections Age-based Possible Content Description GroupRatings List for Lock Aspect Ratio Format Technical InformationClosed caption CC 32 mm 24 mm Data format for SD Card browsingMessage SD Card warning messages MeaningDigital Audio OUT terminals Picture modeViera LinkTM Hdavi ControlTM Hdmi connectionAspect Ratio FULL/JUSTH-FILL/ZOOM Input signal that can be displayedSize Aspect RatioCare and Cleaning This is not a malfunction Check the position, direction, and connection of the antennaNo image is Some spots remainBright or dark Chaotic image, noisySpecifications One Panasonic Way Secaucus, New Jersey Limited Warranty CoverageOn-Site or Carry-in Service Limited Warranty Limits And ExclusionsAccessory Purchases United States and Puerto Rico Customer Services Directory United States and Puerto RicoPanasonic Product Limited Warranty Limited Warranty for CanadaAmbler Drive Customer’s RecordAnotación del cliente
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