Read Sharp PN-K322BH (serv.man6) User Guide / Operation Manual online
31
E
Troubleshooting
When “AUTO DIMMING” is displayed.
• When the internal temperature of the monitor rises excessively,
the brightness of the backlight automatically decreases in
order to prevent a further temperature rise.
If you attempt to use brightness adjustment button ( /
order to prevent a further temperature rise.
If you attempt to use brightness adjustment button ( /
)
to adjust the brightness while the monitor is in this state, “AUTO
DIMMING” is displayed and you cannot change the brightness.
DIMMING” is displayed and you cannot change the brightness.
• Remove the cause of the excessive temperature rise.
The monitor makes a cracking sound.
• You may occasionally hear a cracking sound from the
monitor. This happens when the cabinet slightly expands
and contracts according to change in temperature. This
does not affect the monitor’s performance.
and contracts according to change in temperature. This
does not affect the monitor’s performance.
The Power LED is flashing in red and green alternately.
When “TEMPERATURE” is displayed in the corner of the
screen.
• When the internal temperature of the monitor rises
excessively, the brightness of the backlight decreases
automatically in order to prevent high-temperature-
related problems. When this occurs, “TEMPERATURE” is
displayed on the screen and the Power LED flashes red
and green alternately. (When TEMPERATURE ALERT is
set to OSD & LED. This varies depending on the setting.)
automatically in order to prevent high-temperature-
related problems. When this occurs, “TEMPERATURE” is
displayed on the screen and the Power LED flashes red
and green alternately. (When TEMPERATURE ALERT is
set to OSD & LED. This varies depending on the setting.)
• If the internal temperature rises further, the monitor
automatically enters standby mode. (The Power LED
continues flashing red and green alternately.)
continues flashing red and green alternately.)
• Remove the cause of the excessive temperature rise.
- If the monitor enters standby mode due to a rise in
temperature, to return to normal display, turn the power
switch off and then back on again. The monitor, however,
will enter standby mode again if the cause of the
temperature rise is not eliminated. (See page 15.)
switch off and then back on again. The monitor, however,
will enter standby mode again if the cause of the
temperature rise is not eliminated. (See page 15.)
- Check whether the monitor is placed at a location where
a quick rise in temperature is likely. Internal temperature
rises quickly if the vents on the monitor are blocked.
rises quickly if the vents on the monitor are blocked.
- Internal temperature rises quickly if dust accumulates
inside the monitor or around the vents. Remove dust if
possible. Ask SHARP dealer about removing internal dust.
possible. Ask SHARP dealer about removing internal dust.
A residual image has occurred.
After the image has changed, the previous image is faintly
visible.
• Displaying the same image for an extended time may
cause a residual image.
• To improve a residual image, keep the power off. With the
power off state, the residual image will gradually disappear
as time passes. If there is no improvement, display a full
white screen or an animated image.
as time passes. If there is no improvement, display a full
white screen or an animated image.
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