Precautions Regarding Use; Standby And On Indicators - Pioneer PDP-4304 Operating Instructions Manual

Additional Information

Precautions Regarding Use

Panel sticking and after-image lag
• Displaying the same images such as still images for a long
time may cause after-image lagging.
This may occur in the following two cases.
1. After-image lagging due to remaining electrical load
When image patterns with very high peak luminance are
displayed for more than 1 minute, after-image lagging may
occur due to the remaining electric load. The after-images
remaining on the screen will disappear when moving images
are displayed. The time for the after-images to disappear
depends on the luminance of the still images and the time
they had been displayed.
2. After-image (lag image) due to burning
Avoid displaying the same image on the Plasma Display
continuously over a long period of time. If the same image is
displayed continuously for several hours, or for shorter periods
of time over several days, a permanent after-image may
remain on the screen due to burning of the fluorescent
materials. Such images may become less noticeable if moving
images are later displayed, but they will not disappear
completely.
The same kind of burning of a lag image may also be produced
after extended multi-hour use, or recurrent daily use for shorter
periods of a single [4:3] screen size, or [DOT BY DOT] image.
Except in cases where violation of intellectual property rights
may be involved (pages 27 to 28), it is recommended that lag-
image burning be avoided by selecting a screen size that
displays images over the entire screen (pages 27 to 28).
• In addition, the [ENERGY SAVE] function (page 37), [ORBITER]
function (page 39), and [MASK CONTROL] function (page 40),
can also be used to reduce the chance of lag image formation.
About the plasma panel's protection function
The brightness of this display will deteriorate slightly when an
image with little movement such as a photograph or computer
image is continuously displayed. This is caused by the plasma
panel's protection function which detects images with slight
movement and automatically adjusts brightness to protect the
display, and is not a malfunction.
The screen-saver function begins operating when the display
detects no or little screen movement for a period of about three
minutes; the function is an automatic feature and cannot be
turned OFF .
Pixel failure
The plasma display screen is composed of a high numbers of
tiny pixel elements constructed in a high-precision array, but on
occasion one or more of the pixels may fail to light, or may light
erratically. This is an inevitable by-product of the manufacturing
process and not a malfunction.
Concerning infrared light
In principle, the plasma display radiates infrared light. Depending
on the environment in which the monitor is installed and used,
infrared remote control units for other nearby appliances may fail
to operate properly, or noise may be heard in wireless
headphones. In such cases, move the affected appliance to a
location where its infrared sensor is not affected.
44
EN
Electromagnetic interference
This unit is built in compliance with official standards for
electromagnetic interference, but it nonetheless may produce a
low level of radio noise. This noise may be noticeable if AM
radios, computers, or video appliances are installed too close to
the display. In such cases, remove the affected appliance to a
location where it is not affected.
Additional cautions
• If the power is automatically turned off during operation of this
unit, the following reasons may be the cause.
1 Is the [POWER MANAGEMENT] function or [AUTO
POWER OFF] function set to [ON/ENABLE] ? (page 38).
2 The surrounding temperature has risen above 40˚C (104˚F).
The display should be used within ambient temperature
conditions below 40˚C (104˚F).
3 The internal temperature has risen abnormally due to
blocked cooling vents, overheating of internal electronic
parts, or other factors.
If the power is automatically turned off for a reason other than
the above reasons, there could be a malfunction. In this case,
unplug the power cord from the power outlet and request
repair from your nearest sales outlet.
• The plasma display panel of this unit is very bright and viewing
it a close distance will cause eye strain.
We recommend that you view the screen from a suitable
distance (3 to 6 m).
• In order to protect the panel and internal circuitry, this display
is provided with a cooling fan designed to turn on/off and
change speed automatically in accordance with ambient
temperature conditions (the fan sound will change in
accordance with its speed). The display should be used within
ambient temperature conditions below 40˚C (104˚F).

STANDBY and ON Indicators

When the ON indicator is flashing green, an error message is
indicated. Consult any onscreen messages (page 42) and check
ambient conditions (temperature, etc.) and respond accordingly
(page 43).
If the problem persists, disconnect the power plug and consult
your dealer or a service center.
Other than this, if the power turns off by itself, or refuses to turn
on, or if the STANDBY indicator conditions flashing red, a
malfunction may be indicated. Immediately disconnect the power
plug and consult your dealer or a service center.