Panasonic CT-L2000, CT-L1400 manual Troubleshooting, Symptom Cause and remedy

Page 29

Troubleshooting

Before requesting service for this LCD TV, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or a minor adjustment on your part may eliminate the problem and restore proper operation. If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, consult your dealer for instructions.

Symptom

 

Cause and remedy

Page

 

 

 

Power supply does not

Is power supply plug unplugged from the outlet?

go on

If power will not go on with the remote control, is the power supply of the TV "Off"?

13

Remote control cannot

Is battery exhausted, or is battery polarity wrong?

7

be operated

Is the remote control receiver illuminated with strong light from a fluorescent lamp etc.?

 

Are you using the special-purpose remote control for this equipment?

 

 

(The unit will not operate with another remote control.)

 

Image shakes, or image

Is there deterioration, breakage or disconnection of the antenna or antenna wire?

is unclear

Is the antenna wire connected correctly?

8, 9

There are spots on the

Is the system affected (by radio wave interference or induced electromagnetic

 

picture, or the screen

 

waves) by external sources (automobiles or trains, high-voltage wires, neon,

 

shakes

 

motors, magnetized steel frame, or iron rain shutters, etc.)?

 

 

Turn off the power supply, and try changing the equipment setup location. If

 

 

 

that has no effect, separate magnet-proofing will be required.

 

 

 

 

The image appears

Is the antenna direction shifted?

doubled or tripled

Are reflected electromagnetic waves being received from mountains or buildings?

 

A color pattern appears,

Is the equipment being affected by another TV (electromagnetic interference)?

or colors disappear

 

Changing the TV setup location may lead to improvement.

 

The channel number

Has the RECALL button been pressed?

 

disappears from the

 

Press the "RECALL button" again.

15

screen

 

If the system is switched to external input and there is no external

 

 

 

 

signal video, the number will disappear.

 

 

 

 

When the image is not stable,

This occurs when the signal driving the liquid crystal is lost, and is not

the screen turns completely

 

a malfunction.

white for a moment

 

 

 

 

 

 

The screen goes dark

The screen is darkened for a moment to conceal noise generated when

momentarily when the

 

changing channels.

channel is changed.

 

 

 

 

 

 

The TV makes a hissing

If the screen and audio are not abnormal, this sound is caused by

noise occasionally

 

slight expansion and contraction of the cabinet due to changes in room

 

 

temperature. It has no effect on performance.

 

 

 

 

The screen display

When input is switched to "video input", this may occur if there is no

10, 11

shakes with video input

 

signal at the video/audio input terminal.

 

A black band appears

This is due to noise generated when changing channels.

momentarily when selecting

 

 

channels with video

 

 

 

 

 

 

Both edges of the screen,

They may appear bent due to the received channel or some DVD

or columns or window

 

software. This is not a malfunction.

frames, appear bent

 

 

 

 

 

 

The image from the

Are plugs securely inserted into each terminal?

10,11

connected equipment

 

Securely insert plugs all the way.

does not appear

 

 

 

 

 

 

The main unit is hot to

The main unit radiates heat, so some parts of the console reach a high

 

the touch

temperature. This is not a problem for performance or quality.

 

 

Set up at a location with good ventilation.

 

 

Do not cover the ventilation holes of the console with a tablecloth, etc.,

 

 

 

and do not place on top of other equipment (like a video deck).

 

 

 

 

 

 

 

 

 

29

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Contents CT-L2000 Operating InstructionsImportant Safety Instructions for LCD TV Important Safety InstructionsPage Dear Panasonic Customer Table of Contents How to use the LCD stand InstallationReceiver Location Optional External EquipmentPrecaution on battery use MaintenanceRemote control battery installation Antenna / Cable Connection ConnectionsAntenna cover removal and fitting Antenna Connection Cable Box, and VCR Antenna Connection Cable Box, no VCRConnect VCR and other peripheral equipment How to connect the input terminalsVideo Game Console Connect Camcorder and Video Game ConsoleCable cover removal and fitting Connecting Headphones / EarphonesConnect headphones / earphones as follows How to Turn the Power On Power on / OFFConnecting the Plug to the Wall Outlet Turn the TV on Turning the power on and switching input modesBasic Controls ‘Instruction’ box Flow Chart of MenuOn Screen Help Flow Chart of Menu Tuning channels Automatic channel programming Tuning channels Manual channel programming Picture Adjustments Audio Adjustments Input code Lock FeatureLocking and unlocking For U.S.TV Program to lockRating For U.S.MOVIES to lockFor Canadian English / Canadian French to lock Canadian French Ratings Chart Canadian English Ratings ChartCC on Mute Closed CaptionsMatrix Customizing the Video Input labels3D Y/C Filter OFF Aspect Controls Mode Picture ExplanationSize without any stretching Bars can be seen at the top and bottomSymptom Cause and remedy TroubleshootingPage Dimensions W ⋅ H ⋅ D SpecificationsExecutive Office Customer’ Record