BenQ RL2455HM User Manual

48 Troubleshooting
Faint shadow from the static image displayed is visible on the screen.
• Activate the power management function to let your computer and monitor go into a low
power "sleep" mode when not actively in use.
• Use a screensaver to prevent the occurrence of image retention.
Is the prompt on the display illuminated in orange?
If the LED is illuminated in orange, the power management mode is active. Press any button on
the computer keyboard or move the mouse. If that does not help, check the signal cable
connectors. If any pin is bent or broken off, please contact your dealer to get necessary
support.
Is the prompt on the display not illuminated at all?
Check the power supply mains socket, the external power supply and the mains switch.
The image is distorted, flashes or flickers.
Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then
select the correct resolution, refresh rate and make adjustments based on these instructions.
You are running the monitor at its native resolution, but the image is still distorted.
Images from different input sources may appear distorted or stretched on the monitor running
at its native resolution. To have the optimal display performance of each type of input sources,
you can use the Display Mode function to set a proper aspect ratio for the input sources. See
Display Mode on page 40 for details.
The image is displaced in one direction.
Read the instructions on the link "Adjusting the Screen Resolution" on the CD, and then
select the correct resolution, refresh rate and make adjustments based on these instructions.
The OSD controls are inaccessible.
To unlock the OSD controls when it is preset to be locked, press and hold any key for 10
seconds.
No sound can be heard from the built-in speakers (for models with speakers only):
• Check whether Line In is properly connected.
• Increase the volume (volume may be muted or too low).
• Remove your headphone and/or external speakers. (If they are connected to the monitor,
the built-in speakers are automatically muted.)

BenQ RL2455HM Specifications

General

3D	No
Panel type	TN+Film
Pixel pitch	0.276 x 0.276 mm
Aspect ratio	16:9
Screen shape	Flat
Display surface	-
Display diagonal	24 \
Display technology	LED
Maximum refresh rate	- Hz
Viewing angle, vertical	160 °
Contrast ratio (dynamic)	12000000:1
Contrast ratio (typical)	1000:1
Display number of colors	16.78 million colors
Viewing angle, horizontal	170 °
Display brightness (typical)	250 cd/m²
Supported graphics resolutions	1920 x 1080 (HD 1080)
On/off switch	Yes
DVI-I ports quantity	0
RMS rated power	4 W
Tilt angle range	-5 - 15 °
Cable lock slot type	Kensington
Number of OSD languages	17
Panel mounting interface	100 x 100 mm
AC input voltage	96 - 264 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	- W
Power consumption (typical)	27 W
Power consumption (PowerSave)	0.5 W
Product color	Black, Red
Market positioning	Gaming
Windows operating systems supported	Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64
Package depth	134 mm
Package width	650 mm
Package height	420 mm
Package weight	5700 g
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	189 mm
Height (with stand)	435 mm
Weight (with stand)	4100 g
Depth (without stand)	63 mm
Width (without stand)	579 mm
Height (without stand)	350 mm
Weight (without stand)	- g