Troubleshooting - Panasonic TX-20LB5F/G Operating Instructions Manual

Lcd tv
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Troubleshooting

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).
Symptoms
Picture
Snowy Picture
Multiple Images
Interference
Normal Picture
No Picture
No Colour
Poor or Distorted Picture
Weak or Distorted Sound
Normal Picture
There may be red spots,
blue spots and green
spots on the screen.
24
Sound
Aerial location, direction or connection
Noisy Sound
Aerial location, direction or connection
Normal Sound
Electrical appliances
Cars / Motorcycles
Fluorescent lights
Noisy Sound
Switch on P-NR in Picture menu to reduce picture noise.
Volume level
Sound mute switched on.
No Sound
TV set to AV mode.
Not plugged into AC outlet.
Not switched on.
Picture / Sound controls set at minimum levels.
No Sound
Check if in Standby mode.
Colour controls set at minimum levels.
Normal Sound
Retune Channel (s).
Weak or No Sound
Sound reception may have deteriorated.
Switch MPX setting (Sound menu) to Off until reception improves.
This is a characteristic of liquid crystal panels and is not a problem. The
liquid crystal panel is built with very high precision technology giving you
fine picture details. Occasionally, a few non-active pixels may appear on
the screen as a fixed point of blue, green, or red.
Normal Sound
Please note this does not affect the performance of your LCD.
Checks

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