Troubleshooting; Cleaning - Panasonic TX-43P800H Operating Instructions Manual

Troubleshooting

Before you call for service, determine the symptoms and make a few simple checks as shown below.
Symptoms
Picture
Snowy Picture
Multiple Image
Interference
Normal
Picture
No Picture
No Colour
Scrambled
Coloured
Patches
No Colour
Projection TV screen
Symptoms
Do not allow a still picture to be displayed for an extended period, as this can cause a permanent
after-image to remain on the Projection TV screen.
Examples of still pictures include logos, video games, computer images, teletext and images displayed in
16:9 mode.
Note:
The permanent after-image on the Projection TV screen resulting from fixed image use is not an
After-images
operating defect and as such is not covered by the Warranty.
appear
This product is not designed to display fixed images for extended periods of time.

Cleaning

To ensure continued excellent performance by this product, periodic cleaning is recommended.
The unit contains many plastic
parts. For this reason DO NOT
use benzine, thinner or other
chemicals to clean the unit.
DO NOT bring into contact with
insecticide or other volatile
substances.
DO NOT allow the unit to come
into contact for extended periods
with rubber or vinyl products.
34
Sound
Aerial Location, direction or Connections
Noisy Sound
Aerial Location, direction or Connections
Normal Sound
Electrical Appliances
Noisy Sound Cars/Motorcycles
Fluorescent Lamps
Volume (Refer to page 10, 11)
No Sound
(Check whether the mute function has been activated on
the Remote Control.)
Not plugged into AC outlet
Not switched on
No Sound
Contrast and Brightness/Volume setting (Check by pressing the
Power Switch or Stand-by Button on the Remote Control.)
Colour Control (Refer to page 24, 25)
Normal Sound
Colour System (Refer to page 21)
Normal or
Retune Channels (Refer to page 15)
Weak Sound
Magnetic interference from unshielded equipment;
TV set moved while "ON".
Normal Sound
Turn the TV set off for 30 minutes, using the "Power"
Switch on the TV set.
Sound System (Refer to page 21)
Noisy Sound
Colour System (Refer to page 21)
Checks
Checks
Dust will accumulate on the picture screen. Please wipe
with a soft cloth from time to time. If you use a
chemically treated cloth, please be careful to follow the
instructions that come with the cloth.
Remove dirt and soiling by wiping with a light cloth.
Even if the unit is heavily soiled, do not apply cleaner directly
to the unit. Soak a cloth in a solution of neutral cleanser
thinned with water. Then wring out the cloth, wipe the unit
clean, and finish by wiping with a dry cloth.
Do not use any type of cleansers on the picture screen.