Asus Computer Monitor VH238H User Manual

VH238H Series  
LCD Monitor  
User Guide  
Notices  
Federal Communications Commission Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject  
to the following two conditions:  
This device may not cause harmful interference, and  
This device must accept any interference received including  
interference that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for  
a Class B digital device, pursuant to Part 15 of the FCC Rules. These  
limits are designed to provide reasonable protection against harmful  
interference in a residential installation. This equipment generates, uses  
and can radiate radio frequency energy and, if not instalLCD and used  
in accordance with manufacturer’s instructions, may cause harmful  
interference to radio communications. However, there is no guarantee that  
interference will not occur in a particular installation. If this equipment does  
cause harmful interference to radio or television reception, which can be  
determined by turning the equipment off and on, the user is encouraged to  
try to correct the interference by one or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment to an outlet on a circuit different from that to  
which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
As an Energy Star® Partner, our company has  
determined that this product meets the Energy Star®  
guidelines for energy efficiency.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio  
noise emissions from digital apparatus set out in the Radio Interference  
Regulations of the Canadian Department of Communications.  
This class B digital apparatus complies with Canadian ICES-003.  
iii  
 
Safety information  
Before setting up the monitor, carefully read all the documentation that  
came with the package.  
To prevent fire or shock hazard, never expose the monitor to rain or  
moisture.  
Never try to open the monitor cabinet. The dangerous high voltages  
inside the monitor may result in serious physical injury.  
If the power supply is broken, do not try to fix it by yourself. Contact a  
qualified service technician or your retailer.  
Before using the product, make sure all cables are correctly connected  
and the power cables are not damaged. If you detect any damage,  
contact your dealer immediately.  
Slots and openings on the back or top of the cabinet are provided for  
ventilation. Do not block these slots. Never place this product near or  
over a radiator or heat source unless proper ventilation is provided.  
The monitor should be operated only from the type of power source  
indicated on the label. If you are not sure of the type of power supply to  
your home, consult your dealer or local power company.  
Use the appropriate power plug which complies with your local power  
standard.  
Do not overload power strips and extension cords. Overloading can  
result in fire or electric shock.  
Avoid dust, humidity, and temperature extremes. Do not place the  
monitor in any area where it may become wet. Place the monitor on a  
stable surface.  
Unplug the unit during a lightning storm or if it will not be used for a  
long period of time. This will protect the monitor from damage due to  
power surges.  
Never push objects or spill liquid of any kind into the slots on the  
monitor cabinet.  
To ensure satisfactory operation, use the monitor only with UL listed  
computers which have appropriate configured receptacles marked  
between 100-240V AC.  
If you encounter technical problems with the monitor, contact a  
qualified service technician or your retailer.  
The socket-outlet shall be installed near the equipment and shall be  
easily accessible.  
iv  
 
Care & Cleaning  
Before you lift or reposition your monitor, it is better to disconnect the cables  
and power cord. Follow the correct lifting techniques when positioning the  
monitor. When lifting or carrying the monitor, grasp the edges of the monitor.  
Do not lift the display by the stand or the cord.  
Cleaning. Turn your monitor off and unplug the power cord. Clean the monitor  
surface with a lint-free, non-abrasive cloth. Stubborn stains may be removed  
with a cloth dampened with mild cleaner.  
Avoid using a cleaner containing alcohol or acetone. Use a cleaner intended  
for use with the LCD. Never spray cleaner directly on the screen, as it may drip  
inside the monitor and cause an electric shock.  
The following symptoms are normal with the monitor:  
The screen may flicker during the initial use due to the nature of the fluorescent  
light. Turn off the Power Switch and turn it on again to make sure that the  
flicker disappears.  
You may find slightly uneven brightness on the screen depending on the  
desktop pattern you use.  
When the same image is displayed for hours, an afterimage of the previous  
screen may remain after switching the image. The screen will recover slowly or  
you can turn off the Power Switch for hours.  
When the screen becomes black or flashes, or cannot work anymore, contact  
your dealer or service center to fix it. Do not repair the screen by yourself!  
Conventions used in this guide  
WARNING: Information to prevent injury to yourself when trying to  
complete a task.  
CAUTION: Information to prevent damage to the components when  
trying to complete a task.  
IMPORTANT: Information that you MUST follow to complete a task.  
NOTE: Tips and additional information to aid in completing a task.  
v
 
Where to find more information  
Refer to the following sources for additional information and for product and  
software updates.  
1.  
2.  
ASUS websites  
The ASUS websites worldwide provide updated information on ASUS  
hardware and software products. Refer to http://www.asus.com.  
Optional documentation  
Your product package may include optional documentation that may have  
been added by your dealer. These documents are not part of the standard  
package.  
1.1  
Welcome!  
Thank you for purchasing the ASUS® VH238H Series LCD monitor!  
The latest widescreen LCD monitor from ASUS provides a crisper, broader, and  
brighter display, plus a host of features that enhance your viewing experience.  
With these features, you can enjoy the convenience and delightful visual  
experience that the VH238H Series brings you!  
1.2  
Package contents  
Check your VH238H Series LCD package for the following items:  
LCD monitor  
Monitor base  
Quick Start Guide  
Power cord  
VGA cable  
DVI cable  
Audio cable  
If any of the above items is damaged or missing, contact your retailer  
immediately.  
vi  
Chapter 1: Product Introduction  
 
1.3  
Assembling the monitor base  
To assemble the monitor base:  
1.  
2.  
Connect the base with the monitor. A click indicates that the base has been  
connected successfully.  
Adjust the monitor to the angle that is most comfortable for you.  
We recommend that you cover the table surface with soft cloth to prevent  
damage to the monitor.  
1
2
1.4  
Monitor introduction  
Front of the LCD monitor  
VH238H  
1.4.1  
1.4.1.1  
ASUS LCD Monitor VH238H Series  
1-1  
 
1.  
Button:  
Automatically adjust the image to its optimized position, clock, and  
phase by long pressing this button for 2-4 seconds (for VGA mode only).  
Use this hotkey to switch from six video preset modes (Scenery Mode,  
Standard Mode, Theater Mode, Game Mode, Night View Mode, and  
sRGB Mode) with SPLENDID™ Video Intelligence Technology.  
Exit the OSD menu or go back to the previous menu as the OSD menu  
is active.  
2.  
Button:  
Press this button to decrease the value of the function selected or move  
to the next function.  
This is also a hotkey for Volume adjustment.  
3.  
4.  
MENU Button:  
Press this button to enter/select the icon (function) highlighted while the  
OSD menu is activated.  
Button:  
Press this button to increase the value of the function selected or move  
to the previous function.  
This is also a hotkey for Brightness adjustment.  
5.  
Input Select Button:  
Use this hotkey to switch from VGA, DVI, HDMI input signals.  
Press  
(Input Select button) to display HDMI signal after you connect cable  
with the monitor.  
6.  
7.  
Power Button:  
Press this button to turn the monitor on/off.  
Power Indicator:  
Status  
Blue  
Description  
ON  
Amber  
OFF  
Standby mode  
OFF  
1-2  
Chapter 1: Product Introduction  
1.4.2  
Rear of the LCD monitor  
Screw holes for  
VESA Wall Mount  
1.4.2.1  
VH238H  
1
2
3
4
5
6
7
AC-IN port  
HDMI-IN port  
DVI port  
VGA port  
Line-in port  
Earphone-out port  
HDMI SPDIF OUT  
ASUS LCD Monitor VH238H Series  
1-3  
 
2.1  
Detaching the arm/stand  
(for VESA wall mount)  
The detachable stand of the VH238H Series LCD monitor is specially designed for  
VESA wall mount.  
To detach the arm/stand:  
1.  
2.  
3.  
Remove the arm cover.  
Have the front of the monitor face down on a table.  
Use a screwdriver to remove the three screws on the stand of the monitor as  
the below drawing shows.  
4.  
Detach the arm from the monitor.  
We recommend that you cover the table surface with soft cloth to prevent  
damage to the monitor.  
Hold the stand of the monitor when you remove the screws.  
The VESA wall mount kit ( 100 x 100 mm) is purchased separately.  
Use only the UL Listed Wall Mount Bracket with minimum weight/load  
19.2 Kg (Screw size: M4 x 12 mm).  
ASUS LCD Monitor VH238H Series  
2-1  
 
2.2  
Adjusting the monitor  
For optimal viewing, we recommend that you look at the full face of the  
monitor, then adjust the monitor to the angle that is most comfortable for you.  
Hold the stand to prevent the monitor from falling while changing its angle.  
You can adjust the monitor’s angle from -5˚ to 20˚.  
-5 ~ 20  
2-2  
Chapter 2: Setup  
 
3.1  
OSD (On-Screen Display) menu  
3.1.1  
How to reconfigure  
VH238  
Splendid  
Color  
Scenery Mode  
Standard Mode  
Theater Mode  
Game Mode  
Image  
Input Select  
System Setup  
Night View Mode  
sRGB  
Move  
Menu  
Exit  
1.  
2.  
Press the MENU button to activate the OSD menu.  
Press and to navigate through the functions. Highlight and activate  
the desired function by pressing the MENU button. If the function selected  
has a sub-menu, press and again to navigate through the sub-menu  
functions. Highlight and activate the desired sub-menu function by pressing  
the MENU button.  
3.  
4.  
Press and to change the settings of the selected function.  
To exit the OSD menu, press the  
adjust any other function.  
button. Repeat step 2 and step 3 to  
3.1.2  
OSD Function Introduction  
1.  
Splendid  
This function contains six sub-functions that you can select for your  
preference. Each mode has the Reset selection, allowing you to maintain  
your setting or return to the preset mode.  
VH238  
Splendid  
Color  
Scenery Mode  
Standard Mode  
Theater Mode  
Game Mode  
Image  
Input Select  
System Setup  
Night View Mode  
sRGB  
Move  
Menu  
Exit  
Scenery Mode: This is the best choice for scenery photo displaying with  
SPLENDID™ Video Intelligence Technology.  
ASUS LCD Monitor VH238H Series  
3-1  
 
Standard Mode: This is the best choice for document editing with  
SPLENDID™ Video Intelligence Technology.  
Theater Mode: This is the best choice for movie watching with  
SPLENDID™ Video Intelligence Technology.  
Game Mode: This is the best choice for game playing with SPLENDID™  
Video Intelligence Technology.  
Night View Mode: This is the best choice for playing dark-scene game  
or watching dark-scene movie with SPLENDID™ Video Intelligence  
Technology.  
sRGB: This is the best choice for viewing photos and graphics from PCs.  
In the Standard Mode, the Saturation, SkinTone, Sharpness, and ASCR  
functions are not user-configurable.  
In the sRGB, the Saturation, Color Temp., SkinTone, Sharpness,  
Brightness, Contrast and ASCR functions are not user-configurable.  
2.  
Color  
Select the image color you like from this function.  
VH238  
Splendid  
Color  
Brightness  
Contrast  
100  
80  
Image  
Saturation  
Color Temp.  
50  
User Mode  
Input Select  
System Setup  
Skin Tone  
Natural  
OFF  
Smart View  
Move  
Menu  
Exit  
Brightness: The adjusting range is from 0 to 100. The  
button is  
also a hotkey to activate this function.  
Contrast: The adjusting range is from 0 to 100.  
Saturation: The adjusting range is from 0 to 100.  
Color Temp.: Contain three preset color modes (Cool, Normal, Warm)  
and one User Mode.  
Skin Tone: Contain three color modes including Reddish, Natural, and  
Yellowish.  
Smart view: The versatile viewing positions with Smart View Technology.  
In the User Mode, colors of R (Red), G (Green), and B (Blue) are  
userconfigurable; the adjusting range is from 0 ~ 100.  
3-2  
Chapter 3: General Instruction  
3.  
Image  
You can adjust the image Sharpness, Trace Free, Aspect Control, ASCR,  
Position (VGA only), and Focus (VGA only) from this main function.  
VH238  
Splendid  
Color  
Sharpness  
50  
60  
Trace Free  
Image  
Aspect Control  
Full  
OFF  
ASCR  
Input Select  
System Setup  
Position  
Focus  
Move  
Menu  
Exit  
Sharpness: Adjust the picture sharpness. The adjusting range is from 0  
to 100.  
Trace Free: Speed up the response time by Over Drive technology. The  
adjusting range is from lower 0 to faster 100.  
Aspect Control: Adjust the aspect ratio to “Full”, “4:3”, or “Over Scan”  
(Only available for HDMI input).  
ASCR: Select ON or OFF to enable or disable dynamic contrast ratio  
function.  
Position: Adjust the horizontal position (H-Position) and the vertical  
position (V-Position) of the image. The adjusting range is from 0 to 100  
(Only available for VGA input).  
Focus: Reduce Horizonal-line noise and Vertical-line noise of the image  
by adjusting (Phase) and (Clock) separately. The adjusting range is from  
0 to 100 (Only available for VGA input).  
Phase adjusts the phase of the pixel clock signal. With a wrong phase  
adjustment, the screen shows horizontal disturbances.  
Clock (pixel frequency) controls the number of pixels scanned by one  
horizontal sweep. If the frequency is not correct, the screen shows vertical  
stripes and the image is not proportional.  
ASUS LCD Monitor VH238H Series  
3-3  
4.  
Input Select  
Select the input source from VGA, DVI, or HDMI.  
VH238  
Splendid  
Color  
VGA  
DVI  
Image  
HDMI  
Input Select  
System Setup  
Move  
Menu  
Exit  
5.  
System Setup  
Adjust the system configuration.  
VH238  
Splendid  
Color  
Splendid Demo Mode  
Volume  
OFF  
50  
Image  
ECO Mode  
OFF  
Input Select  
System Setup  
OSD Setup  
Language  
English  
Information  
1/2  
Move  
Menu  
Exit  
VH238  
Splendid  
Color  
All Reset  
Image  
Input Select  
System Setup  
2/2  
Move  
Menu  
Exit  
Splendid Demo Mode: Activate the demo mode for the Splendid  
function.  
Volume: The adjusting range is from 0 to 100.  
is a hotkey to activate  
this function.  
3-4  
Chapter 3: General Instruction  
ECO Mode: Activate the ecology mode for power saving. (Some gray  
levels may not be distinguished if ECO is ON. Its brightness is lower than  
that when setting the Contrast Ratio to 100.)  
OSD Setup: Adjust the horizontal position (H-Position),and the vertical  
position (V-Position) of the OSD. The adjusting range is from 0 to 100. In  
the OSD Timeout selection, you can adjust the OSD timeout from 10 to  
120.  
Language: There are eleven languages for your selection,including  
English, German, Italian, French, Dutch, Spanish, Russian,Traditional  
Chinese, Simplified Chinese, Japanese, and Korean.  
Information: Display the monitor information.  
All Reset: Select “Yes” to revert all settings to the factory default mode.  
ASUS LCD Monitor VH238H Series  
3-5  
3.2  
Specifications summary  
VH238H  
Model  
Panel Size  
23”W (58.42 cm)  
True Resolution  
1920 x 1080 (Full HD)  
2
Brightness (Typ.)  
250cd/m  
Contrast Ratio (Typ.)  
ASUS Smart Contrast Ratio (ASCR)  
Viewing Angle (CR≥10)  
1000:1  
50,000,000:1  
170°(H)/160°(V)  
Color Saturation  
(NTSC)  
72%  
Display Colors  
Response Time  
Stereo Speaker  
HDMI input  
16.7M  
2 ms (Gray to Gray)  
2 W x 2 RMS  
Yes  
DVI input  
Yes  
D-Sub input  
Yes  
Yes  
Audio Line-in  
Earphone Output  
Yes  
SPIDIF output  
Voltage Rating  
Yes  
AC 100-240V  
ON Mode: <50 W,  
Power Consumption  
Standby Mode: <1 W,  
Off Mode: <1 W  
-5° ~ +20°  
Tilt  
VESA Wall Mounting  
Phys. Dimension (WxHxD)  
Box Dimension (WxHxD)  
Net Weight (Esti.)  
Gross Weight (Esti.)  
100 x 100 mm  
550.24 x 412.4 x 220 mm  
623 x 171 x 478 mm  
4.8 kg  
6.6 kg  
*Specifications are subject to change without notice.  
3-6  
Chapter 3: General Instruction  
 
3.3  
Troubleshooting (FAQ)  
Problem  
Possible Solution  
button to check if the monitor is in the  
Power LED is not ON  
Press the  
ON mode.  
Check if the power cord is properly connected to the  
monitor and the power outlet.  
The power LED lights amber and  
there is no screen image  
Check if the monitor and the computer are in the  
ON mode.  
Make sure the signal cable is properly connected  
the monitor and the computer.  
Inspect the signal cable and make sure none of the  
pins are bent.  
Connect the computer with another available  
monitor to check if the computer is properly working.  
Screen image is too light or dark  
Adjust the Contrast and Brightness settings via  
OSD.  
Screen image is not centered or  
sized properly  
Press the  
button for 2~4 seconds to  
automatically adjust the image (for VGA input only).  
Adjust the H-Position or V-Position settings via OSD  
(for VGA input only).  
Screen image bounces or a wave  
pattern is present in the image  
Make sure the signal cable is properly connected to  
the monitor and the computer.  
Move electrical devices that may cause electrical  
interference.  
Screen image has color defects  
(white does not look white)  
Inspect the signal cable and make sure that none of  
the pins are bent.  
Perform All Reset via OSD.  
Adjust the R/G/B color settings or select the Color  
Temperature via OSD.  
Screen image is blurry or fuzzy  
No sound or sound is low  
Press the  
button for 2~4 seconds to  
automatically adjust the image (for VGA input only).  
Adjust the Phase and Clock settings via OSD.  
Ensure that the audio cable is properly connected to  
the monitor and the computer.  
Adjust the volume settings of both your monitor and  
computer.  
Ensure that the computer sound card driver is  
properly installed and activated.  
ASUS LCD Monitor VH238H Series  
3-7  
 
3.4  
Supported Timing List  
Resolution  
Refresh Rate  
Horizontal Frequency  
640x480  
640x480  
640x480  
60Hz  
72Hz  
75Hz  
31.469kHz  
37.861kHz  
37.5kHz  
640x480  
67Hz  
35kHz  
640x350  
720x400  
800x600  
800x600  
800x600  
800x600  
832x624  
848x480  
70Hz  
70Hz  
56Hz  
60Hz  
72Hz  
75Hz  
75Hz  
60Hz  
31.469kHz  
31.469kHz  
35.156kHz  
37.879kHz  
48.077kHz  
46.875kHz  
49.725kHz  
31.02kHz  
1024x768  
1024x768  
1024x768  
1152x864  
1280x720  
1280x800  
1280x960  
1280x1024  
1280x1024  
1366x768  
1440x900  
1680x1050  
1680x1050  
1920x1080  
1920x1080  
1280x720  
1280x720  
1280x800  
1280x800  
1440x900  
1440x900  
60Hz  
70Hz  
75Hz  
75Hz  
60Hz  
60Hz  
60Hz  
60Hz  
75Hz  
60Hz  
60Hz  
60Hz  
60Hz  
60Hz  
60Hz  
60Hz  
48.363kHz  
56.476kHz  
60.023kHz  
67.5kHz  
44.772kHz  
49.702kHz  
60kHz  
63.981kHz  
79.976kHz  
47.712kHz  
55.935kHz  
65.29kHz  
64.674kHz  
67.5kHz  
66.587kHz  
44.444kHz  
56.456kHz  
49.306kHz  
62.795kHz  
55.469kHz  
70.635kHz  
31.469/31.5kHz  
31.469/31.5kHz  
31.25kHz  
75Hz  
60Hz  
75Hz  
60Hz  
75Hz  
640x480P(HDMI)  
720x480P(HDMI)  
720x576P(HDMI)  
1280x720P(HDMI)  
1280x720P(HDMI)  
1440x480P(HDMI)  
1440x576P (HDMI)  
1920x1080i(HDMI)  
1920x1080i(HDMI)  
1920x1080i(HDMI)  
1920x1080P(HDMI)  
1920x1080P(HDMI)  
59.94/60Hz  
59.94/60Hz  
50Hz  
50Hz  
37.5kHz  
59.94/60Hz  
59.94/60Hz  
50Hz  
50Hz  
50Hz  
59.94/60Hz  
50Hz  
59.94/60Hz  
44.955/45kHz  
31.469/31.5kHz  
31.25kHz  
31.25kHz  
28.125kHz  
33.716/33.75kHz  
56.25kHz  
67.433/67.5kHz  
* The modes not listed in the above tables may not be supported. For optimal resolution, we  
recommend that you choose a mode listed in the above tables.  
3-8  
Chapter 3: General Instruction  
 

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