Palsonic PDP 4280HD - Manual (Page 20)

Care and Maintenance
19
Do not use in hot or cold rooms (locations)
When the unit is used in rooms (locations) with low temperature, the picture may leave trails or appear
slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal.
Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct
sunlight or near a heater, as this may cause the cabinet to deform and the PDP panel to malfunction.
(Storage temperature: 0°C to +50°C Working temperature: 5°C to +40°C)
PDP Display Panel
Symptoms Check item
Some parts of the screen do not
light up. The plasma display panel is manufactured using an extremely high
level of precision technology, however, sometimes some parts of
the screen may be missing picture elements or have luminous spots.
This is not a malfunction.
After-images appear 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
Plasma Display.
Examples of still pictures include logos, video games, computer
images, teletext and images displayed in 4:3 mode.
Note:
The permanent after-image on the Plasma Display resulting from
fixed image use is not an operating defect.
This product is not designed to display fixed images for extended
periods of time.
Snapping sounds may be heard from
the display unit. This sound is produced when the cabinet expands or contracts due
to variations in temperature and is not a malfunction.
Cleaning and Maintenance
The front of the display panel has been specially treated. Wipe the panel surface gently using
only a cleaning cloth or a soft, lint-free cloth.
If the surface is particularly dirty, soak a soft, lint-free cloth in a weak detergent solution and then wring
the cloth to remove excess liquid. Use this cloth to wipe the surface of the display panel, and then wipe
it evenly with a dry cloth, of the same type, until the surface is dry.
Do not scratch or hit the surface of the panel with fingernails or other hard objects. Furthermore, avoid
contact with volatile substances such as insect sprays, solvents and thinner; otherwise the quality of the
surface may be adversely affected.
If the cabinet becomes dirty, wipe it with a soft, dry cloth.
If the cabinet is particularly dirty, soak the cloth in a weak detergent solution and then wring the cloth dry.
Use this cloth to wipe the cabinet, and then wipe it dry with a dry cloth.
Do not allow any detergent to come into direct contact with the surface of the Plasma Display.
If water droplets get inside the unit, operating problems may result.
Avoid contact with volatile substances such as insect sprays, solvents and thinner, otherwise the. quality
of the cabinet surface may be adversely affected or the coating may peel off. Furthermore, do not leave
it for long periods in contact with articles made from rubber or PVC.