Table of Contents
- Contents
- Notices
- Safety information
- Care & Cleaning
- Takeback Services
- Chapter 1: Product introduction
- 1.1 Welcome!
- 1.2 Package contents
- 1.3 Monitor introduction
- Chapter 2: Setup
- 2.1 Assembling the monitor arm/base
- 2.2 Detaching the arm/base (for VESA wall mount)
- 2.3 Attaching/Removing the MiniPC Kit (C620A/C622A/C623A/C624A/C624B)
- 2.4 Adjusting the monitor
- 2.5 Connecting the cables
- 2.6 Turning on the monitor
- Chapter 3: General instructions
- 3.1 OSD (On-Screen Display) menu
- 3.2 Specifications summary
- 3.3 Troubleshooting (FAQ)
- 3.4 Supported operating modes
ASUS C423AQ User Manual
Displayed below is the user manual for C423AQ by ASUS which is a product in the Computer Monitors category. This manual has pages.
Related Manuals
C620A/C422A/C622A/
C423A/C623A/C424A/
C624A/C624B Series
LCD Monitor
User Guide
ii
First Edition
June 2015
Copyright © 2015 ASUSTeK COMPUTER INC. All Rights Reserved.
No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).
Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing byASUS; or (2) the serial number of the
product is defaced or missing.
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL,
INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS,
LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE),
EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM
ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT.
SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR
INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE,
AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO
RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN
THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.
Products and corporate names appearing in this manual may or may not be registered trademarks or
copyrights of their respective companies, and are used only for identication or explanation nd to the
owners’ benet, without intent to infringe.
iii
Contents
1.3.1 Front view ....................................................................... 1-2
1.3.2 Back view ........................................................................ 1-3
1.3.3 QuickFit Function ............................................................ 1-4
3.1.1 How to recongure .......................................................... 3-1
3.1.2 OSD function introduction ............................................... 3-2
iv
Notices
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 installed 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.
The use of shielded cables for connection of the monitor to the graphics card is
required to assure compliance with FCC regulations. Changes or modications
to this unit not expressly approved by the party responsible for compliance could
void the user’s authority to operate this equipment.
As an Energy Star® Partner, our company has determined that this
product meets the Energy Star® guidelines for energy efciency.
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.
This Class B digital apparatus meets all requirements of the Canadian
Interference - Causing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du
Réglement sur le matériel brouiller du Canada.
v
Safety information
• Before setting up the monitor, carefully read all the documentation that came
with the package.
• To prevent re 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 x it by yourself. Contact a qualied
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 extention cords. Overloading can result in re
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 congured receptacles marked between
100-240V AC.
• If you encounter technical problems with the monitor, contact a qualied
service technician or your retailer.
• Adjustment of the volume control as well as the equalizer to other settings
than the center position may increase the ear-/headphones output voltage and
therefore the sound pressure level.
This symbol of the crossed out wheeled bin indicates that the product (electrical,
electronic equipment, and mercury-containing button cell battery) should not
be placed in municipal waste. Please check local regulations for disposal of
electronic products.
vi
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 monitor. Never spray cleaner directly on the screen, as it may
drip inside the monitor and cause an electric shock.
• 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 ashes, or cannot work anymore, contact
your dealer or service center to x it. Do not repair the screen by yourself!
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.
vii
Refer to the following sources for additional information and for product and
software updates.
The ASUS websites worldwide provide updated information on ASUS
hardware and software products. Refer to http://www.asus.com
Your product package may include optional documentation that may have
been added by your dealer. These documents are not part of the standard
package.
Takeback Services
ASUS recycling and takeback programs come from our commitment to the highest
standards for protecting our environment. We believe in providing solutions for
our customers to be able to responsibly recycle our products, batteries and other
components as well as the packaging materials.
Please go to http://csr.asus.com/english/Takeback.htm for detail recycling
information in different region.
viii
1-1ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
1.1 Welcome!
Thank you for purchasing the ASUS® LCD monitor!
The latest widescreen LCD monitor from ASUS provides a broader, brighter and
crystal-clear 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 monitor brings to you!
1.2 Package contents
Check your package for the following items:
LCD monitor
Monitor base
Quick start guide
Warranty card
Power cord
DVI cable (optional)
DisplayPort cable
VGA cable
USB cable (for selected models)
Audio cable
MiniPC Kit (for selected models)
If any of the above items is damaged or missing, contact your retailer
immediately.
1-2 Chapter 1: Product introduction
1.3 Monitor introduction
C422A/C423A/C424A
Menu
Close
Quick Fit
Brightness
Blue Light Filter
Menu
Close
Quick Fit
Brightness
Blue Light Filter
C620A/C622A/C623A/C624A/C624B
7
1234
5
6
1. Power button/power indicator
• Turns the monitor on/off.
• The color denition of the power indicator is as the below table.
White On
Amber Standby mode
Off Off
2. Menu button:
• Press this button to display the OSD menu when the OSD is off.
• Enters the OSD menu.
3. Close button:
• Press this button to display the OSD menu when the OSD is off.
• Exits the OSD menu.
4. QuickFit button:
• Press this button to display the OSD menu when the OSD is off.
• This is a hotkey to activate the QuickFit function designed for alignment.
• The QuickFit function contains pages of common grid patterns, paper
sizes, and photo sizes. (Please refer to 1.3.3 QuickFit Function).
5. Shortcut
• Press this button to display the OSD menu when the OSD is off.
• Default: Brightness hotkey
1-3ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
• To change the hotkey function, go to the Shortcut > Shortcut 1 menu.
6. Shortcut
• Press this button to display the OSD menu when the OSD is off.
• Default: Blue light lter hotkey
• To change the hotkey function, go to the Shortcut > Shortcut 2 menu.
7. Human Sensor (only for C623AQR):
• Detects user’s presence in front of the monitor screen. The monitor
automatically enters standby mode when no moving object in front of
the monitor is detected for longer than 60 seconds. When the user
comes back, the power resumes automatically when it detects the
user’s presence. The default setting of Human sensor is “Off”. User can
activate this function through OSD settings.
10
1234 5 678
1234 5 678 9
C422AQ/C423AQ/C424AQ
C422AQE/C423AQE/C424AQE
C620AQ/C622AQ/C623AQ/C623AQR/C624AQ/C624BQ
1234 5 678
C620AQE/C622AQE/C623AQE/C624AQE
1234 5 678 9
10
.
. Press the switch to turn on/off power.
. This port connects the power cord.
. This port is for connection with a DisplayPort compatible
device.
1-4 Chapter 1: Product introduction
. This 24-pin port is for PC (Personal Computer) DVI-D digital signal
connection.
. This 15-pin port is for PC VGA connection.
. This port connects PC audio source by the bundled audio
cable.
. This port is only available when an HDMI/DisplayPort cable
is connected.
. This port is for connection with a USB upstream
cable. The connection enables the USB ports on the monitor.
. These ports are for connection with USB
devices, such as USB keyboard/mouse, USB ash drive, etc.
The QuickFit function contains three kinds of patterns: (1) Grid patterns (2) Paper
size (3) Photo size. To activate the patterns, press the QuickFit button. Press the
buttons as indicated on the screen to select a desired pattern.
Some of the following patterns may not be available. Please refer to the actual
patterns shown on your monitor.
1. Grid patterns
The grid patterns facilitate users to efciently organize and compare various
contents, such as spreadsheet viewing and photo editing.
Alignment Grid 1 Alignment Grid 2
Alignment Grid 1 Alignment Grid 2
2. Paper size
QuickFit provides several commonly used standard paper sizes for users to view
their documents in real size on the screen.
1-5ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
B5 Letter
B5 Letter
3. Photo size
The various real photo sizes displayed in the QuickFit function provides
photographers and other users to accurately view and edit their photos in real size
on the screen.
Photo 4x6, 3x5, 2x2 Photo 8x10, 5x7
3x5 2x2
4x6 5x7
8x10
1-6 Chapter 1: Product introduction
2-1ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
2.1 Assembling the monitor arm/base
To assemble the monitor base:
1. Have the front of the monitor face down on a table.
2. Attach the base into the arm, making sure the tab on the arm ts into the
groove on the base.
3. Fix the base to the arm by fastening the bundled screw.
We recommend that you cover the table surface with soft cloth to prevent
damage to the monitor.
C422A/C423A/C424A
C620A/C622A/C623A/C624A/C624B
2.2 Detaching the arm/base
(for VESA wall mount)
The detachable arm/base of this monitor is specially designed for VESA wall
mount.
To detach the arm/base:
2-2 Chapter 2: Setup
C422A/C423A/C424A
1. Have the front of the monitor face down on a table.
2. Remove the rubbers in the four screw holes. (Figure 1)
3. Remove the base (Figure 2).
4. Use a screwdriver to remove the screw on the hinge (Figure 3), then remove
the hinge.
1
2
(Figure 1) (Figure 2)
1
2
(Figure 3)
C620A/C622A/C623A/C624A/C624B
5. 1. Have the front of the monitor face down on a table.
6. 2. Press the release button, and then detach the arm/base from the monitor
(Figure 2).
7.
2
1
(Figure 1) (Figure 2)
2-3ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
We recommend that you cover the table surface with soft cloth to prevent
damage to the monitor.
• The VESA wall mount kit (100 x 100 mm) is purchased separately.
• Use only the UL Listed Wall Mount Bracket with minimum weight/load
22.7kg (Screw size: M4 x 10 mm)
2.3 Attaching/Removing the MiniPC Kit
(C620A/C622A/C623A/C624A/C624B)
Attaching the MiniPC Kit
2
1
Removing the MiniPC Kit
2
1
2-4 Chapter 2: Setup
2.4 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 when you change its angle.
• C422A/C423A/C424A: The recommended adjusting angle is +20 to -5˚.
• C620A/C622A/C623A/C624A/C624B: You can adjust the monitor’s angle from
+33˚ to -5˚and it allows 90˚ swivel adjustment from either left or right. You can
also adjust the monitor’s height within +/- 130 mm.
90°
0°
90°
-5° ~ +33°
130mm
C422A/C423A/C424A
C620A/C622A/C623A/C624A/C624B
-5° ~ +20°
1. Lift the monitor to the highest position.
2. Tilt the monitor to its maximum angle.
3. Pivot the monitor clockwise/counterclockwise to the angle you need.
(Tilt) (Swivel) (Height adjustment)
2-5ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
-5° ~ +33°
130mm
It is normal that the monitor slightly shakes while you adjust the viewing angle.
2.5 Connectingthecables
Connect the cables as the following instructions:
• Toconnectthepowercord: Connect one end of the power cord securely to
the monitor’s AC input port, the other end to a power outlet.
• ToconnecttheVGA/DVI/DisplayPortcable:
a. Plug one end of the VGA/DVI/DisplayPort cable to the monitor’s VGA/
DVI/DisplayPort jack.
b. Connect the other end of the VGA/DVI/DisplayPort cable to your
computer's VGA/DVI/DisplayPort jack.
2-6 Chapter 2: Setup
c. Tighten the two screws to secure the VGA/DVI connector.
• Toconnecttheaudiocable:connect one end of the audio cable to the
monitor’s Audio-in port, the other end to the computer’s audio-out port.
• Tousetheearphone: connect the end with plug type to the monitor’s
earphone jack when an HDMI or DisplayPort signal is fed.
• TousetheUSB2.0ports: Take the supplied USB 2.0 cable, and plug
the smaller end (type B) of the USB upstream cable to the monitor’s USB
upstream port, and the larger end (type A) to your computer’s USB 2.0 port.
Make sure your computer is installed with the lastest Windows 7/Windows 8
operating system. That will enable the USB ports on the monitor to work.
When these cables are connected, you can choose the desired signal
from the Input Select item in the OSD menu.
2.6 Turningonthemonitor
Press the power button . See page 1-2 for the location of the power button. The
power indicator lights up in white to show that the monitor is ON.
3-1ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
3.1 OSD (On-Screen Display) menu
3.1.1 How to reconfigure
Scenery Mode
Standard Mode
Theater Mode
Night View Mode
sRGB Mode
Reading Mode
Darkroom Mode
Splendid
ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
1. Press any button (except the Power button) to display the OSD menu.
2. Press the Menu button to activate the OSD menu.
3. Press the buttons as indicated on the screen to navigate through the
functions. Highlight the desired function and press to activate it. If the
function selected has a sub-menu, press and again to navigate
through the sub-menu functions. Highlight the desired sub-menu function and
press to activate it.
4. Press and to change the settings of the selected function.
5. To exit and save the OSD menu, press or repeatedly until the OSD menu
disappears. To adjust other functions, repeat steps 1-4.
3-2 Chapter 3: OSD (On-Screen Display) menu
3.1.2 OSD function introduction
This function contains 7 sub-functions you can select for your preference.
Each mode has the Reset selection, allowing you to maintain your setting or
return to the preset mode.
Scenery Mode
Standard Mode
Theater Mode
Night View Mode
sRGB Mode
Reading Mode
Darkroom Mode
Splendid ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
Best choice for scenery photo display with SplendidPlus
Video Enhancement.
: Best choice for document editing with SplendidPlus
Video Enhancement.
Best choice for movies with SplendidPlus Video
Enhancement.
Best choice for dark-scene games or movies with
SplendidPlus Video Enhancement.
: best choice for viewing photos and graphics from PCs.
: This is the best choice for book reading.
: This is the best choice for a weak ambient light
environment.
3-3ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
In this function, you can adjust the blue light filter level.
Level 0
Level 1
Level 2
Level 3
Level 4
Blue Light Filter ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
No change.
The higher the level, the less blue light is scattered.
When Blue Light Filter is activated,the default settings of Standard Mode
will be automatically imported. Between Level 1 to Level 3, the Brightness
function is user-configurable. Level 4 is optimized setting. It is compliance
with TUV Low Blue Light Certification. The Brightness function is not user-
configurable.
Set a desired color setting from this menu.
Brightness
Contrast
Saturation
Color Temp.
Skin Tone
Color ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
: The adjusting range is from 0 to 100.
: The adjusting range is from 0 to 100.
: The adjusting range is from 0 to 100.
: Contains 4 modes including Cool, Normal, Warm and User
Mode.
3-4 Chapter 3: OSD (On-Screen Display) menu
: contains three color modes including Reddish, Natural, and
Yellowish.
Set the image related setting from this menu.
Sharpness
Trace Free
Aspect Control
VividPixel
ASCR
Position
Focus
Auto Adjust
Image ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
: The adjusting range is from 0 to 100.
: Adjusts the response time of the monitor.
: Adjusts the aspect ratio to full, 4:3, 1:1 or OverScan.
4:3 is only available when input source is in 4:3 format. OverScan is only
available for the HDMI input source.
: Enhances the outline of the displayed picture and generates
high-quality images on screen.
: Turns on/off the ASCR (ASUS Smart Contrast Ratio) function.
: adjusts the horizontal position
(H-Position) and the vertical position (V-Position) of the image. The
adjusting range is from 0 to 100.
: reduces Horizonal-line noise
and Vertical-line noise of the image by adjusting (Phase) and (Clock)
separately. The adjusting range is from 0 to 100.
• 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.
: Automatically adjusts the image to its optimized position,
clock, and phase (for VGA mode only).
3-5ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
You can adjust Volume, Mute and Source from this menu.
Volume
Mute
Source
Sound ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
: the adjusting range is from 0 to 100.
: toggles the monitor sound between on and off.
: decides the monitor sound comes from which source.
In this function, you can select your desired input source.
VGA
DVI
DisplayPort
Input Select ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
3-6 Chapter 3: OSD (On-Screen Display) menu
Allows you to adjust the system.
Splendid Demo Mode
ECO Mode
USB Charging
OSD Setup
Language
Key Lock
Information
More
System Setup ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
: Splits the screen into two for Splendid modes
comparison. (Scenery mode only)
: reduces power consumption.
:
* “On” allows the USB downstream ports to generate a 5V/500mA
output when the monitor is turned on or in standby mode.
* “Off“ allows the USB downstream ports to generate a 5V/500mA
output only when the monitor is turned on.
:
* Adjusts the OSD timeout from 10 to 120 seconds.
* Enables or disables the DDC/CI function.
* Adjusts the OSD background from opaque to transparent.
: There are 21 languages for your selection, including English,
French, German, Italian, Spanish, Dutch, Portuguese, Russian, Czech,
Croatian, Polish, Romanian, Hungarian, Turkish, Simplied Chinese,
Traditional Chinese, Japanese, Korean, Thai, Indonesia, Persian.
: To disable all function keys. Press the second button from the
right over five seconds to cancel the key lock function.
: Shows the monitor information.
: Turns the power LED indicator on/off.
: turns on/ off the Human Sensor
function and adjusts its sensitivity. The effective range is from 50 to 70
cm. The default setting is Off.
* Low: Sensor distance is around 50 cm.
3-7ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
* Medium: Sensor distance is around 60 cm.
* High: Sensor distance is around 70 cm.
• The detective range may be slightly different if user wears dark or bright
colored clothing. Set the sensitivity to High when wearing black or other
dark clothes.
• Please do not put any object too close to the Human Sensor to avoid any
interference.
: Enables or disables the power key.
: “Yes” allows you to restore the default settings.
Defines the functions for Shortcut 1 and 2 buttons.
Shortcut 1
Shortcut 2
Shortcut ASUS C622A
Standard Mode VGA 1920 x 1080 @ 60Hz
: selects a function for Shortcut 1 and 2 buttons.
When a certain function is selected or activated, your shortcut key may not
support. Available function choices for shortcut: Blue Light Filter, Splendid,
Brightness, Auto Adjust, Contrast, Color Temp., Volume.
3-8 Chapter 3: OSD (On-Screen Display) menu
3.2 Specications summary
C422A/C423A/C424A
TFT LCD
C422AQ/C422AQE: 21.5” (16:9, 54.6 cm) wide
screen
C423AQ/C423AQE: 23” (16:9, 58.4 cm) wide screen
C424AQ/C424AQE: 23.8” (16:9, 60.5 cm) wide screen
C422AQ/C422AQE: 1920 x 1080
C423AQ/C423AQE: 1920 x 1080
C424AQ/C424AQE: 1920 x 1080
C422AQ/C422AQE: 0.248 mm x 0.248 mm
C423AQ/C423AQE: 0.2652 mm x 0.2652 mm
C424AQ/C424AQE: 0.2745 mm x 0.2745 mm
250 cd/m2
1000:1
100,000,000:1 (with ASCR on)
178˚/178˚
16.7 M
< 5 ms
Yes
7 video preset modes
Yes
4 color temperatures
D-sub
DVI-D with HDCP, DisplayPort v1.2
Yes
Yes
2 W x 2 Stereo, RMS
Upstream x 1, Downstream x 2 (only for C422AQ/
C423AQ/C424AQ)
Black
White (On)/Amber (Standby)
+20˚~ -5˚
No
No
No
Yes
AC: 100~240V
C422AQ/C422AQE: Power On: < 21.09 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
C423AQ/C423AQE: Power On: < 22 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
C424AQ/C424AQE: Power On: < 22.97 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
0˚C~40˚C
3-9ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
-20˚C~+60˚C
C422AQ/C422AQE: 514 x 383 x 195 mm (machine),
576 x 442 x 120 mm (package)
C423AQ/C423AQE: 548 x 403 x 195 mm (machine),
617 x 119 x 462 mm (package)
C424AQ/C424AQE: 562 x 406 x 195 mm (machine),
632 x 127 x 465 mm (package)
C422AQ/C422AQE: 3.8 kg (Net); 5.3 kg (Gross)
C423AQ/C423AQE: 4.3 kg (Net); 5.7 kg (Gross)
C424AQ/C424AQE: 4.3 kg (Net); 5.9 kg (Gross)
21 languages (English, French, German, Italian,
Spanish, Dutch, Portuguese, Russian, Czech,
Croatian, Polish, Romanian, Hungarian, Turkish,
Simplied Chinese, Traditional Chinese, Japanese,
Korean, Thai, Indonesia, Persian)
Power cord, DVI cable (optional), DisplayPort
cable, VGA cable, Audio cable, USB cable (only
for C422AQ/C423AQ/C424AQ), Quick start guide,
Warranty card
UL/cUL, CB, CE, ErP, FCC, ISO9241-307, RCM,
VCCI, RoHS, Windows 7 & 8 WHQL, Energy Star 6.0,
EPEAT Gold, TCO 6.0, Flicker Free, Low blue Light,
TUV-GS, TUV-Ergo, CU, PSE, WEEE, EMC DoC,
UkrSEPRO, MEPS
3-10 Chapter 3: OSD (On-Screen Display) menu
C620A/C622A/C623A/C624A/C624B
TFT LCD
C620AQ/C620AQE: 19.45" (16:10, 49.4 cm) wide
screen
C622AQ/C622AQE: 21.5” (16:9, 54.6 cm) wide screen
C623AQ/C623AQE/C623AQR: 23” (16:9, 58.4 cm)
wide screen
C624AQ/C624AQE: 23.8” (16:9, 60.5 cm) wide screen
C624BQ: 24” (16:10, 61.13 cm) wide screen
C620AQ/C620AQE: 1440 x 900
C622AQ/C622AQE: 1920 x 1080
C623AQ/C623AQE/C623AQR: 1920 x 1080
C624AQ/C624AQE: 1920 x 1080
C624BQ: 1920 x 1200
C620AQ/C620AQE: 0.2907 mm x 0.2915 mm
C622AQ/C622AQE: 0.248 mm x 0.248 mm
C623AQ/C623AQE/C623AQR: 0.2652 mm x 0.2652 mm
C624AQ/C624AQE: 0.2745 mm x 0.2745 mm
C624BQ: 0.270 mm x 0.270 mm
250 cd/m2
1000:1
100,000,000:1 (with ASCR on)
178˚/178˚
16.7 M
< 5 ms
Yes
7 video preset modes
Yes
4 color temperatures
D-sub
DVI-D with HDCP, DisplayPort v1.2
Yes
Yes
2 W x 2 Stereo, RMS
Upstream x 1, Downstream x 2 (only for C620AQ/
C622AQ/C623AQ/C623AQR/C624AQ/C624BQ)
Black
White (On)/Amber (Standby)
+33˚~ -5˚
+90˚~ -90˚
+90˚~ -90˚
130 mm
Yes
AC: 100~240V
3-11ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
Power consumption C620AQ/C620AQE: Power On: < 15.74 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
C622AQ/C622AQE: Power On: < 21.09 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
C623AQ/C623AQE/C623AQR: Power On: < 22 W**
(Typ.), Standby: < 0.5 W (Typ.), Power Off: 0 W
(Switch off)
C624AQ/C624AQE: Power On: < 22.97 W** (Typ.),
Standby: < 0.5 W (Typ.), Power Off: 0 W (Switch off)
C624BQ: Power On: < 25.4 W** (Typ.), Standby: <
0.5 W (Typ.), Power Off: 0 W (Switch off)
Temperature (Operating) 0˚C~40˚C
Temperature (Non-operating) -20˚C~+60˚C
Dimension (W x H x D) with
stand
C620AQ/C620AQE: 459 x 477 x 211 mm (highest),
459 x 347 x 211 mm (lowest), 621 x 173 x 382 mm
(package)
C622AQ/C622AQE: 514 x 477 x 211 mm (highest),
514 x 347 x 211 mm (lowest), 643 x 378 x 190 mm
(package)
C623AQ/C623AQE/C623AQR: 548 x 490 x 211 mm
(highest), 548 x 360 x 211 mm (lowest), 652 x 173 x
403 mm (package)
C624AQ/C624AQE: 562 x 492 x 211 mm (highest),
562 x 362 x 211 mm (lowest), 660 x 180 x 420 mm
(package)
C624BQ: 561 x 511 x 211 mm (highest), 561 x 381 x
211 mm (lowest), 662 x 179 x 454 mm (package)
Weight (Esti.) C620AQ/C620AQE: 4.8 kg (Net); 6.4 kg (Gross)
C622AQ/C622AQE: 5.7 kg (Net); 7.2 kg (Gross)
C623AQ/C623AQE/C623AQR: 5.7 kg (Net); 7.3 kg
(Gross)
C624AQ/C624AQE: 5.8 kg (Net); 7.9 kg (Gross)
C624BQ: 6.2 kg (Net); 8.2 kg (Gross)
Multi-languages 21 languages (English, French, German, Italian,
Spanish, Dutch, Portuguese, Russian, Czech,
Croatian, Polish, Romanian, Hungarian, Turkish,
Simplied Chinese, Traditional Chinese, Japanese,
Korean, Thai, Indonesia, Persian)
Accessories Power cord, DVI cable (optional), DisplayPort
cable, VGA cable, Audio cable, USB cable (only for
C620AQ/C622AQ/C623AQ/C623AQR/C624AQ/
C624BQ), Quick start guide, Warranty card
Regulation approvals
UL/cUL, CB, CE, ErP, FCC, ISO9241-307, RCM,
VCCI, RoHS, Windows 7 & 8 & 10 WHQL, Energy Star
6.0, EPEAT Gold, TCO 6.0, Flicker Free, Low blue
Light, TUV-GS, TUV-Ergo, CU, PSE, WEEE, EMC
DoC, UkrSEPRO, MEPS, BSMI
*Specications are subject to change without notice.
** Based on Energy Star 6.0 standard.
3-12 Chapter 3: OSD (On-Screen Display) menu
3.3 Troubleshooting (FAQ)
Power LED is not ON • Press the button to check if the monitor
is in the ON mode.
• Check if the power cord is properly
connected to the monitor and the power
outlet.
• Check if the power switch is ON.
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
• Adjust the H-Position or V-Position
settings via OSD.
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 • Adjust the Phase and Clock settings via
OSD.
No sound or sound is low • Ensure that the HDMI/DisplayPort cable is
properly connected to the monitor and the
computer.
• Adjust the volume settings of both your
monitor and HDMI/DisplayPort device.
• Ensure that the computer sound card
driver is properly installed and activated.
3-13ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
3.4 Supported operating modes
C620A
640x480 31.47(N) 59.94(N) 25.18
640x480 35.00(N) 66.66(N) 30.24
640x480 37.87(N) 72.82(N) 31.5
640x480 37.5(N) 75.00(N) 31.5
720x400 31.47(N) 70.08(P) 28.32
800x600 35.16(P) 56.25(P) 36.00
800x600 37.88(P) 60.32(P) 40.00
800x600 48.08(P) 72.12(P) 50.00
800x600 46.86(P) 75.00(P) 49.50
832X624 49.72(P/N) 74.55(P/N) 57.28
1024x768 48.36(N) 60.00(N) 65.00
1024x768 56.476(N) 70.069(N) 75.00
1024x768 60.02(N) 75.00(N) 78.75
1152x864 67.5(P/N) 75.00(P/N) 108
1280x720 45.00(P) 60.00(N) 75.25
1280x768 47.78(P) 60.00(N) 79.5
1280x800 49.7(P) 60.00(N) 83.5
1360x768 47.712(P) 59.79(P) 85.5
1366x768 47.712(P) 59.79(P) 85.5
1440x900 55.94(N) 59.89(P) 106.5
1 480p 720 x 480 31.469 60 27 480p-60Hz
2 720p60 1280 x 720 45 60 74.25 720p-60Hz
3 576p 720 x 576 31.25 50 27 576p-50Hz
4 720p50 1280 x 720 37.5 50 74.25 720p-50Hz
3-14 Chapter 3: OSD (On-Screen Display) menu
C422A/C622A/C423A/C623A/C424A/C624A
640x480 31.47(N) 59.94(N) 25.18
640x480 35.00(N) 66.66(N) 30.24
640x480 37.87(N) 72.82(N) 31.5
640x480 37.5(N) 75.00(N) 31.5
720x400 31.47(N) 70.08(P) 28.32
800x600 35.16(P) 56.25(P) 36.00
800x600 37.88(P) 60.32(P) 40.00
800x600 48.08(P) 72.12(P) 50.00
800x600 46.86(P) 75.00(P) 49.50
832X624 49.72(P/N) 74.55(P/N) 57.28
1024x768 48.36(N) 60.00(N) 65.00
1024x768 56.476(N) 70.069(N) 75.00
1024x768 60.02(N) 75.00(N) 78.75
1152x864 67.5(P/N) 75.00(P/N) 108
1280x720 45.00(P) 60.00(N) 75.25
1280x768 47.78(P) 60.00(N) 79.5
1280x800 49.7(P) 60.00(N) 83.5
1280x960 60.00(P) 60.00(N) 108
1280x1024 63.98(P) 60.02(N) 108
1280x1024 79.98(P) 75.02(N) 135
1360x768 47.712(P) 59.79(P) 85.5
1366x768 47.712(P) 59.79(P) 85.5
1440x900 55.94(N) 59.89(P) 106.5
1600x1200 75.00(P) 60.00(P) 162
1680x1050 65.29(P) 60.00(P) 146.25
1920x1080 67.5(P) 60.00(P) 148.5
3-15ASUS C620A/C422A/C622A/C423A/C623A/C424A/C624A/C624B Series LCD Monitor
1480p 720 x 480 31.469 60 27 480p-60Hz
2 720p60 1280 x 720 45 60 74.25 720p-60Hz
3 576p 720 x 576 31.25 50 27 576p-50Hz
4 720p50 1280 x 720 37.5 50 74.25 720p-50Hz
5 1080p60 1920 x 1080 67.5 60 148.5 1080p-60Hz
6 1080p50 1920 x 1080 56.25 50 148.5 1080p-50Hz
C624B
640x480 31.47(N) 59.94(N) 25.18
800x600 35.16(P) 56.25(P) 36
800x600 37.88(P) 60.32(P) 40
1024x768 48.36(N) 60.00(N) 65
1280x960 60.00(P) 60.00(N) 108
1280x1024 63.98(P) 60.02(P) 108
1366x768 47.712(P) 59.79(P) 85.5
1440x900 55.94(N) 59.89(P) 106.5
1600x1200 75.00(P) 60.00(P) 162
1680x1050 65.29(N) 60.00(P) 146.25
1920x1080 67.5(P) 60.00(P) 148.5
1920x1200
(Reduced Blanking) 74.038(P) 59.95(N) 154
1 480p 720 x 480 31.469 60 27 480p-60Hz
2 720p60 1280 x 720 45 60 74.25 720p-60Hz
3 576p 720 x 576 31.25 50 27 576p-50Hz
4 720p50 1280 x 720 37.5 50 74.25 720p-50Hz
5 1080p60 1920 x 1080 67.5 60 148.5 1080p-60Hz
6 1080p50 1920 x 1080 56.25 50 148.5 1080p-50Hz