Panasonic TX-20LA2M, TX-20LA2A Troubleshooting, Maintenance, Symptoms, Checks, Picture, Sound

Models: TX-20LA2X TX-20LA2A TX-20LA2M

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Troubleshooting

Troubleshooting

If there is a problem with your LCD 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).

Symptoms

 

Checks

Picture

Sound

 

Snowy Picture

Noisy Sound

Aerial location, direction or connection

Multiple Image

Normal Sound

Aerial location, direction or connection

 

 

Electrical appliances

Interference

Noisy Sound

Cars / Motorcycles

 

 

Fluorescent lights

Normal Picture

No Sound

Volume level

Sound mute switched on.

 

 

 

 

TV set to AV mode

 

 

Not plugged into AC outlet.

No Picture

No Sound

Not switched on.

 

 

Picture / Sound controls set at minimum levels.

 

 

Check if in Standby mode.

No Colour

Normal Sound

Colour Controls set at minimum levels.

Colour system

 

 

Poor or Distorted

Weak or

Retune Channel (s).

Picture

No Sound

Normal Picture

Weak or

Sound reception may have deteriorated.

distorted sound

Sound system

 

 

 

This is a characteristic of liquid crystal panels and is not a

There may be red spots,

 

problem. The liquid crystal panel is built with very high precision

Normal Sound

technology giving you fine picture details. Occasionally, a few

blue spots and green

non-active pixels may appear on the screen as a fixed point of

spots on the screen

 

 

blue, green, or red.

 

 

 

 

Please note this does not affect the performance of your LCD.

Maintenance

To clean this unit, wipe with a soft, dry cloth.

If the surfaces are extremely dirty, use a soft cloth dipped in soap-and-water solution or a weak detergent solution.

Use eyeglass cleaner to remove stubborn dirt from the LCD.

Never use alcohol, paint thinner or benzine to clean this unit.

Before using chemically treated cloth, read the instructions that came with the cloth carefully.

Do not wipe the LCD with water.

Wipe the cabinet with a soft cloth.

Neutral detergent

If the cabinet is heavily soiled, wipe with a well-wrung soft cloth dipped in kitchen cleanser (neutral) diluted with water.

CAUTION:

If water or similar substances get inside the monitor via the liquid crystal panel surface, a malfunction may result.

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Panasonic TX-20LA2M Troubleshooting, Maintenance, Symptoms, Checks, Picture, Sound, Wipe the cabinet with a soft cloth