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To eliminate vertical bars (Clock):

1. Press the Menu button on the monitor's front panel to open the OSD Menu, and then select Image

Control > Clock.

2. Press the + (Plus) or — (Minus) buttons on the monitor's front panel to eliminate vertical bars. Press

the buttons slowly so that you do not miss the optimum adjustment point.

Figure 4-4 Adjusting the Clock

3. After adjusting the Clock, if blurring, flickering, or bars appear on the screen, proceed to adjust

the Clock Phase.

To remove flickering or blurring (Clock Phase)

1. Press the Menu button on the monitor's front panel to open the OSD Menu, and then select Image

Control > Clock Phase.

2. Press the + (Plus) or — (Minus) buttons on the monitor's front panel to eliminate flickering or

blurring. Flicking or blurring may not be eliminated depending on your computer or graphics

controller card installed.

Figure 4-5 Adjusting the Clock Phase

To correct screen position (Horizontal Position or Vertical Position):

1. Press the Menu button on the monitor's front panel to open the OSD Menu, and then select Image

Control > Horizontal Position and/or Vertical Position.

2. Press the + (Plus) or — (Minus) buttons on the monitor's front panel to properly adjust the position

of the image in the display area of the monitor. The Horizontal Position shifts the image left or

right; the Vertical Position shifts the image up and down.

Figure 4-6 Adjusting the Image Position

Sleep Timer Mode

You can set your computer to sleep when not in use, and this will cause the monitor to sleep (unless you

disable low-power mode). In addition, some monitors support a sleep timer, an energy-saving feature

that enables you to set daily times for the monitor to go into low-power mode and wake up again. This

38 Chapter 4 Operating the Monitor ENWW

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HP ZR2240w Specifications

General

3D	No
Pixel pitch	0.248 x 0.248 mm
Aspect ratio	16:9
Response time	8 ms
Display diagonal	21.5 \
Display technology	LED
Contrast ratio (dynamic)	2000000:1
Contrast ratio (typical)	1000:1
Display number of colors	-
Digital vertical frequency	50 - 76 Hz
Digital horizontal frequency	24 - 94 kHz
Display brightness (typical)	250 cd/m²
Supported graphics resolutions	720 x 400, 1600 x 900, 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1440 x 900 (WXGA+), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 640 x 480 (VGA), 800 x 600 (SVGA)
On/off switch	Yes
USB hub version	2.0
DVI-I ports quantity	0
USB Type-A downstream ports quantity	4
LED indicators	Power
Tilt angle range	-5 - 35 °
Panel mounting interface	No mm
AC input frequency	50 - 60 Hz
Power consumption (max)	52 W
Power consumption (standby)	0.3 W
Power consumption (typical)	35 W
Certification	CSA-NRTL, CSA, FCC. CE, TUV, GOST, NOM, IRAM mark, PSB, VCCI, KC/KCC, Korea E-Standby, ISC, BSMI, \\r C-Tick, CCC, CECP, CEL
Product color	Black
Country of origin	China
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	20 - 80 %
Sustainability certificates	EPEAT Gold, ENERGY STAR

Weight and Dimensions