Acer H223HQ User Manual

14
English
Troubleshooting
Before sending your LCD monitor for servicing, please check the
troubleshooting list below to see if you can self-diagnose the problem.
VGA mode
Problem LED status Remedy
No picture visible White Using the OSD, adjust brightness and
contrast to maximum or reset to their
default settings.
Off Check the power switch.
Check if the power cord is properly
connected to the monitor.
Amber Check if the video signal cable is
properly connected at the back of
monitor.
Check if the computer system is
switched on and in power saving/
standby mode.
Unstable picture Check if the specification of graphics
adapter and monitor is in compliance
which may be causing the input signal
frequency mismatch.
Abnormal picture Image is missing,
off-center, too
large or too
small on the
screen.
Using the OSD, adjust focus, clock, H-
position and V-position with non-
standard signals.
Check the display setting on your
system. In case of a missing image,
please select another resolution or
vertical refresh rate.
Wait for a few seconds after adjusting
the size of the image before changing
or disconnecting the signal cable or
switching off the monitor.

Acer H223HQ Specifications

General

Pixel pitch	0.248 x 0.248 mm
Aspect ratio	16:9
Response time	2 ms
Display diagonal	21.5 \
Contrast ratio (dynamic)	20000:1
Contrast ratio (typical)	250:1
Viewing angle, horizontal	170 °
Display brightness (typical)	300 cd/m²
Power management	ENERGY STAR
Display viewable area (HxV)	476.6 x 268.1 mm
Mean time between failures (MTBF)	50000 h
HDCP	Yes
RMS rated power	2 W
Certification	CE, TÜV GS, MPRII, ISO 13406-2
Product color	Black
Market positioning	-
LED indicators	Stand-by
Panel mounting interface	100 x 100 mm
Power consumption (off)	0.9 W
Power consumption (standby)	1.2 W
Power consumption (typical)	29.8 W

Weight and Dimensions

Depth (without stand)	69.8 mm
Width (without stand)	519.6 mm
Height (without stand)	376.9 mm
Weight (without stand)	4900 g