Acer Computer Monitor P235H User Manual

TABLE OF CONTENTS  
Special notes on LCD monitors .................................................. 1  
Information for your safety and comfort .................................. 2  
Unpacking ................................................................................... 5  
Attaching/Removing the base .................................................... 6  
Screen position adjustment ........................................................ 6  
Connecting the power cord ....................................................... 7  
Safety precaution ....................................................................... 7  
Cleaning your monitor ............................................................... 7  
Power saving ............................................................................... 8  
DDC.............................................................................................. 8  
Connector Pin Assignment ......................................................... 9  
Standard Timing Table..................................................................11  
Installation.....................................................................................12  
User controls..................................................................................13  
Troubleshooting............................................................................19  
Inform a tio n fo r yo ur sa fe t y an d co mfort  
Sa fe t y in st ru ct io n s  
Read these instructions carefully. Keep this document for future reference. Follow all  
warnings and instructions marked on the product.  
CAUTION fo r a cce ssib ilit y  
Be sure that the power outlet you plug the power cord into is easily accessible and  
located as close to the equipment operator as possible. When you need to disconnect  
power to the equipment, be sure to unplug the power cord from the electrical outlet.  
Wa rn in g s  
Do not use this product near water.  
Do not place this product on an unstable cart, stand or table. If the  
product falls, it could be seriously damaged.  
Slots and openings are provided for ventilation to ensure reliable operation of  
the product and to protect it from overheating. These openings must not be  
blocked or covered. The openings should never be blocked by placing the  
product on a bed, sofa, rug or other similar surface. This product should never  
be placed near or over a radiator or heat register, or in a built-in installation  
unless proper ventilation is provided.  
Never push objects of any kind into this product through cabinet  
slots as they may touch dangerous voltage points or short-out parts that could  
result in a fire or electric shock. Never spill liquid of any kind onto or into the  
product.  
To avoid damage of internal components and to prevent battery leakage, do  
not place the product on a vibrating surface.  
Never use it under sporting, exercising, or any vibrating environ ment which  
will probably cause unexpected short current or damage rotor devices, HDD,  
Optical drive, and even exposure risk from lithium battery pack.  
Sa fe list e n in g  
Follow these instructions, suggested by hearing experts,to protect your earing.  
Gradually increase the volume until you can hear it clearly and comfortably and  
without distortion.  
After setting the volume level, do not increase it afteryour ears adjust.  
Limit the amount of time listening to music at high volume.  
Avoid turning up the volume to block out noisy surroundings.  
Turn the volume down if you cant hear people speaking near you.  
Pro d u ct se rvicin g  
Do not attempt to service this product yourself, as opening or removing covers may  
expose you to dangerous voltage points or other risks. Refer all servicing to qualified  
service personnel.  
Unplug this product from the wall outlet and refer servicing to qualified service person-  
nel when:  
the power cord or plug is damaged, cut or frayed  
liquid was spilled into the product  
the product was exposed to rain or water  
the product has been dropped or the case has been damaged  
EN-2  
the product exhibits a distinct change in performance, indicating a need for service  
the product does not operate normally after following the operating instructions  
-----------------------------------------------------------------------------------------------------  
Note: Adjust only those controls that are covered by the operating instructions,  
since improper adjustment of other controls may result in damage and will  
often require extensive work by a qualified technician to restore the product to  
normal condition.  
LCD Pixe l St a t e m e n t  
The LCD unit is produced with high-precision manufacturing techniques. Nevertheless,  
some pixels may occasionally misfire or appear as black or red dots. This has no effect on  
the recorded image and does not constitute a malfunction.  
Tip s a n d in fo rm a t io n fo r co m fo rt a b le u se  
Computer users may complain of eyestrain and headaches after prolonged use. Users are  
also at risk of physical injury after long hours of working in front of a computer. Long  
work periods, bad posture, poor work habits, stress, inadequate working conditions,  
personal health and other factors greatly increase the risk of physical injury.  
Incorrect computer usage may lead to carpal tunnel syndrome, tendonitis, tenosynovitis  
or other musculoskeletal disorders. The following symptoms may appear in the hands,  
wrists, arms, shoulders, neck or back:  
numbness, or a burning or tingling sensation  
aching, soreness or tenderness  
pain, swelling or throbbing  
stiffness or tightness  
coldness or weakness  
If you have these symptoms, or any other recurring or persistent discomfort and/or pain  
related to computer use, consult a physician immediately and inform your companys  
health and safety department.  
The following section provides tips for more comfortable computer use.  
Fin d in g yo u r co m fo rt zo n e  
Find your comfort zone by adjusting the viewing angle of the monitor, using a footrest,  
or raising your sitting height to achieve maximum comfort. Observe the following tips:  
refrain from staying too long in one fixed posture  
avoid slouching forward and/or leaning backward  
stand up and walk around regularly to remove the strain on your leg muscles  
take short rests to relax your neck and shoulders  
avoid tensing your muscles or shrugging your shoulders  
install the external display, keyboard and mouse properly and within comfort  
able reach  
if you view your monitor more than your documents, place the display at the  
center of your desk to minimize neck strain  
EN-3  
Ta kin g ca re o f yo u r visio n  
Long viewing hours, wearing incorrect glasses or contact lenses, glare, excessive room  
lighting, poorly focused screens, very small typefaces and low-contrast displays could  
stress your eyes. The following sections provide suggestions on how to reduce eyestrain.  
Eyes  
Rest your eyes frequently.  
Give your eyes regular breaks by looking away from the monitor and focusing  
on a distant point.  
Blink frequently to keep your eyes from drying out.  
Display  
Keep your display clean.  
Keep your head at a higher level than the top edge of the display so your eyes  
point downward when looking at the middle of the display.  
Adjust the display brightness and/or contrast to a comfortable level for enhanced  
text readability and graphics clarity.  
Eliminate glare and reflections by:  
placing your display in such a way that the side faces the window or any light  
so urce  
minimizing room light by using drapes, shades or blinds  
using a task light  
changing the display’s viewing angle  
using a glare-reduction filter  
using a display visor, such as a piece of cardboard extended from the displays  
top front edge  
Avoid adjusting your display to an awkward viewing angle.  
Avoid looking at bright light sources, such as open windows, for extended  
periods of time.  
De ve lo p in g g o o d w o rk h a b it s  
Develop the following work habits to make your computer use more relaxing and  
productive:  
Take short breaks regularly and often.  
Perform some stretching exercises.  
Breathe fresh air as often as possible.  
Exercise regularly and maintain a healthy body.  
-----------------------------------------------------------------------------------------------------  
Warning! We do not recommend using the product on a couch or bed. If this is  
unavoidable, work for only short periods, take breaks regularly, and do some  
stretching exercises.  
-----------------------------------------------------------------------------------------------------  
For more information and help in recycling, please visit the following websites:  
Worldwide:  
EN-4  
UNPACKING  
Please check the following items are present when you unpack the box,  
and save the packing materials in case you will need to ship or transport  
the monitor in future.  
·
LCD Monitor  
·
AC Power Cord  
·
D-Sub Cable  
·
DVI Cable  
(Only Dual-Input Model)  
·
Audio Cable  
(Only Audio-Input Model)  
(Optional)  
·
User Manual  
·
Quick Start Guide  
EN-5  
At t a ch in g / Rem o vin g t h e Ba se  
--------------------------------------------------------------------  
Note: Remove the monitor and monitor base from its packaging.  
Carefully place the monitor face-down on a stable surface -- use a  
cloth to avoid scratching the screen.  
In st a ll:  
Re m o ve :  
Align the base with the stand and  
push the base towards the top of  
the monitor.  
Depress the release hooks as indi-  
cated first before removing the  
base and follow the arrow direction  
to remove it.  
SCREEN POSITION ADJUSTMENT  
In oder to optimize the best viewing position, you can adjust the tilt of  
the monitor by using both of your hands to hold the edges of the monitor  
as shown in the figure below.  
The monitor can be adjusted to 15 degrees up or 5 degrees down as indi-  
cated by arrow below.  
EN-6  
CONNECTING THE POWER CORD  
·
·
·
·
·
Check first to make sure that the power cord you use is the correct type  
required for your area.  
This monitor has a universal power supply that allows operation in either  
100/120V AC or 220/240 V AC voltage area. No user-adjustment is required.  
Plug one end of the power cord to the AC Inlet, plug another end to a  
proper AC outlet.  
For unit using at 120 V AC:  
Use a UL Listed Cord Set, Type SVT wire and plug rated 10 A/125 V.  
For unit using at 220/240 V AC (outside of U.S.):  
Use a Cord Set consisting of H05VV-F cord and plug rated 10 A, 250 V. The  
cord set should have the appropriate safety approvals for the country in  
which the equipment will be installed.  
SAFETY PRECAUTION  
·
Avoid placing the monitor, or any other heavy object, on the power cord  
to avoid damage to the cable.  
·
·
Do not expose the monitor to rain, excessive moisture, or dust.  
Do not cover the ventilation slots or openings of the monitor. Always  
put the monitor in a place where there is adequate ventilation.  
·
Avoid placing the monitor against a bright background or where sun-  
light or other light sources may reflect on the face of the monitor. Place  
the monitor just below eye level.  
·
·
Handle with care when transporting the monitor.  
Refrain from giving shock or scratch to the screen, as screen is fragile.  
CLEANING YOUR MONITOR  
Please carefully follow the below guidelines when cleaning the monitor.  
·
·
Always unplug the monitor before cleaning.  
Use a soft cloth to wipe the screen and cabinet front and sides.  
EN-7  
Po w e r sa vin g  
The monitor will be driven into Power Saving” mode by the control signal  
from the display controller, as indicated by the amber-color power LED.  
LED  
St a t e  
Lig h t  
ON  
Blu e  
Po wer Saving  
Mod e  
Amb er  
The power saving states will be kept until a control signal has been detected  
or the keyboard or mouse is activated. The recovery time from Active OFF  
state back to ON state is around 3 seconds.  
DDC  
To make your installation easier, the monitor is able to Plug and Play with  
your system if your system also supports DDC protocol. The DDC (Display  
Data Channel) is a communication protocol through which the monitor  
automatically informs the host system about its capabilities, for example,  
supported resolutions and corresponding timing. The monitor supports  
DDC2B standard.  
EN-8  
CONNECTOR PIN ASSIGNMENT  
15-Pin Color Display Signal Cable  
PIN NO.  
DESCRIPTION  
Red  
PIN NO.  
9.  
DESCRIPTION  
+5V  
1.  
2.  
3.  
4.  
5.  
6.  
7.  
8.  
Green  
10.  
Logic Ground  
Monitor Ground  
DDC-Serial Data  
H-Sync  
Blue  
11.  
Monitor Ground  
DDC-return  
R-Ground  
G-Ground  
B-Ground  
12.  
13.  
14.  
V-Sync  
15.  
DDC-Serial Clock  
EN-9  
24-Pin Color Display Signal Cable*  
PIN  
M e a n in g  
PIN  
M e a n in g  
1.  
2.  
TMDS Da ta 2-  
TMDS Da ta 2+  
TMDS Da ta 2/4 Sh ie ld  
NC  
13.  
14.  
15.  
16.  
17.  
18.  
19.  
20.  
21.  
22.  
23.  
24.  
NC  
+5V Po w e r  
3.  
Lo g ic Gro u n d  
Ho t Plu g De te ct  
TMDS Da ta 0-  
TMDS Da ta 0+  
TMDS Da ta 0/5 Sh ie ld  
NC  
4.  
5.  
NC  
6.  
DDC Clo ck  
DDC Da ta  
7.  
8.  
NC  
9.  
TMDS Da ta 1-  
TMDS Da ta 1+  
TMDS Da ta 1/3 Sh ie ld  
NC  
NC  
10.  
11.  
12.  
TMDS Clo ck Sh ie ld  
TMDS Clo ck+  
DDC TMDS Clo ck-  
19-Pin color display signal  
P IN  
M e a n in g  
P IN  
M e a n in g  
1 .  
2 .  
3 .  
4 .  
TM D S D a t a 2 +  
TM D S D a t a 2 Sh ie ld  
TM D S D a t a 2 –  
1 0 .  
1 1 .  
1 2 .  
1 3 .  
TM D S Clo ck +  
TM D S Clo ck Sh ie ld  
TM D S Clo ck –  
CEC  
TM D S D a t a 1 +  
Re se rve d (N .C. o n  
d e vice )  
5 .  
TM D S D a t a 1 Sh ie ld  
1 4 .  
6 .  
7 .  
8 .  
9 .  
TM D S D a t a 1 –  
TM D S D a t a 0 +  
1 5 .  
1 6 .  
1 7 .  
1 8 .  
1 9 .  
SCL  
SD A  
TM D S D a t a 0 Sh ie ld  
TM D S D a t a 0 –  
D D C/CEC G ro u n d  
+ 5 V Po w e r  
H o t Plu g D e t e ct  
* only for certain models  
EN-10  
St a nd a rd Tim ing Ta b le  
Mo d e  
Re so lu t io n  
1
2
VGA  
640x480  
640x480  
60  
66.66  
70  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
Hz  
MAC  
3
VESA  
SVGA  
SVGA  
XGA  
720x400  
4
800x600  
56  
5
800x600  
60  
6
1024x768  
1024x768  
1152x864  
1280x800  
1280x1024  
1440x900  
1920x1080  
60  
7
XGA  
70  
8
VESA  
WXGA  
SXGA  
WXGA+  
UXGA  
75  
9
60  
10  
11  
12  
60  
60  
60  
EN-11  
INSTALLATION  
To install the monitor to your host system, please follow the steps as given  
below:  
St e p s  
1. 1-1 Connect Video Cable  
a. Make sure both the monitor and computer are powered-OFF.  
b. Connect the VGA video cable to the computer.  
1-2 Digital Cable (Only Dual-Input Model)  
a. Make sure both the monitor and computer are powered-OFF.  
b. Connect one end of the 24-pin DVI cable to the back of the  
monitor and connect the other end to the computers port.  
1-3 HDMI Cable (Only HDMI-Input Model)  
a. Make sure both the monitor and computer are powered-OFF.  
b. Connect the HDMI cable to the computer.  
2. Connect the Audio Cable(Only Audio-Input Model)(Optional)  
3. Connect power cord  
Connect the power cord to the monitor, then to a properly grounded AC  
outlet.  
4. Power-ON Monitor and Computer  
Power-ON the monitor first, then power-ON the computer.  
This sequence is very important.  
5. If the monitor still does not function properly, please refer to the  
troubleshooting section to diagnose the problem.  
EN-12  
USER CONTROLS  
Power Switch / Power LED:  
To turn the monitor ON or OFF.  
Lights up to indicate the power is turned ON.  
Usin g t h e Sh o rt cu t Me n u  
Press the function button to open the shortcut menu. The shortcut menu lets you  
quickly select the most commonly accessed settings.  
Empowering:  
Press the Empowering Key to open the Acer eColor Management OSD and access  
the scenario modes.  
AUTO Auto Adjust:  
Press this button to activate the Auto Adjustment function. The Auto Adjustment  
function is used to set the HPos, VPos, Clock and Focus.  
MENU OSD functions  
Press this botton to activate the OSD menu.  
Vo lu m e Up / Do w n  
Press to adjust volume (Only Audio-Input Model)(Optional)  
INPUT Input Key  
Use Input key to select from different video sources that may be connected to  
your monitor.  
(a) VGA input  
(b) DVI input  
(c) HDMI input  
As you cycle through the sources you will see the following messages on right top  
side of screen to indicate currently selected input source. It may take 1 or 2  
seconds for the image to appear.  
VGA or DVI or HDMI  
If either VGA or DVI input is selected ,but the VGA and DVI cables are not con-  
nected, a floating dialog box indicates:  
No Cable Connect” or “No Signal”  
EN-13  
Ace r e Co lo r Ma n a g e m e n t  
Op e ra t io n in st ru ct io n s  
Step 1: Press “ Key to open the Acer eColor Management OSD and  
access the scenario modes  
Step 2: Press “ “ or “  
to select the mode  
Step 3: Press “ AUTO “ Key to confirm the mode and run Auto Adjust.  
Fe a t u re s a n d Be n e fit s  
Ma in  
Me n u  
ico n  
Su b  
Me n u  
ico n  
Su b  
Me n u  
it e m  
De scrip t io n  
User defined. Settings can be fine-tuned to  
suit any situation  
N/A  
N/A  
N/A  
N/A  
User mode  
Optimal balance of brightness and contrast  
Text mode prevent eyestrain. The most comfortable way  
to read onscreen text  
Standard De fa u lt Se t t in g . Re fle ct s n a t ive d isp la y  
mode  
capability  
Enhances colors and emphasize fine detail.  
Pictures and photographs appear in vibrant  
colors with sharp detail.  
Grahpic  
mode  
Disp la ys sce n e s in cle a re st deta il. Prese n ts  
g r e a t v is u a ls , e v e n in u n s u it a b ly - lit  
environments.  
Movie  
mode  
N/A  
EN-14  
Ad ju st in g t h e OSD se t t in g s  
--------------------------------------------------------------------  
Note: The following content is for general reference only. Actual  
product specifications may vary.  
The OSD can be used for adjusting the settings of your LCD Monitor.  
Press the MENU key to open the OSD. You can use the OSD to adjust the  
picture quality, OSD position and general settings. For advanced settings,  
please refer to following page:  
Ad ju st in g t h e p ict u re q u a lit y  
1
2
Press the MENU key to bring up the OSD.  
Using the keys, select Picture from the OSD. Then navigate to  
the picture element you wish to adjust.  
/
3
4
Use the keys to adjust the sliding scales.  
The Picture menu can be used to adjust the current Brightness, Contrast,  
Colour Temp, Auto Config and other image-related qualities.  
/
EN-15  
Ad ju st in g t h e OSD p o sit io n  
1
2
Press the MENU key to bring up the OSD.  
Using the directional keys, select  
OSD from the on screen display.  
Then navigate to the feature you wish to adjust.  
EN-16  
Ad ju st in g t h e se t t in g  
1
2
Press the MENU key to bring up the OSD.  
Using the keys, select Setting from the OSD. Then navigate to  
the feature you wish to adjust.  
/
3
The Setting menu can be used to adjust the screen Menu Language and  
other important settings.  
EN-17  
Pro d u ct in fo rm a t io n  
1
2
Press the MENU key to bring up the OSD.  
Using the keys, select Information from the OSD. Then the  
/
basic information of LCD monitor will show up for current input.  
EN-18  
TROUBLESHOOTING  
Before sending your LCD monitor for servicing, please check the trouble-  
shooting list below to see if you can self-diagnose the problem.  
(VGA Mode)  
Pro b le m s  
Cu rre n t St a t u s Re m e d y  
LED ON  
·
Using OSD, adjust brightness and contrast  
to maximum or reset to their default  
settings.  
LED OFF  
·
·
Check the power switch.  
Check if AC power cord is properly  
connected to the monitor.  
No Picture  
LED displays  
amber color  
·
·
·
Check if video signal cable is properly  
connected at the back of monitor.  
Check if the power of computer system is  
ON.  
Unstable  
Picture  
Check if the specification of graphics  
adapter and monitor is in compliance  
which may be causing the input signal  
frequency mismatch.  
Display is  
·
·
·
Using OSD, adjust RESOLUTION, CLOCK,  
CLOCK-PHASE, H-POSITION and V-  
POSITION with non-standard signals.  
missing, center  
shift, or too  
small or too  
large in display  
size  
Abnormal  
Picture  
Using OSD, in case of missing full-screen  
image, please select other resolution or  
other vertical refresh timing.  
Wait for a few seconds after adjusting the  
size of the image before changing or  
disconnecting the signal cable or powering  
OFF the monitor.  
Abnormal  
Sound  
(Only Audio-  
Input model)  
(Optional)  
No sound, or  
sound level is  
too low  
·
·
Check the audio cable with the host PC is  
connected.  
Check if the volume setup of the host PC is  
in minimum position and try to raise the  
volume level.  
EN-19  
(DVI Mode)  
Pro b le m s  
Cu rre n t St a t u s Re m e d y  
LED ON  
·
Using OSD, adjust brightness and  
contrast to maximum or reset to their  
default settings.  
LED OFF  
·
·
Check the power switch.  
Check if AC power cord is properly  
connected to the monitor.  
No Picture  
LED displays  
amber color  
·
·
·
Check if video signal cable is properly  
connected at the back of monitor.  
Check if the power of computer system  
is ON.  
Abnormal  
Sound  
No sound, or  
sound level is  
Check the audio cable with the host PC  
is connected.  
(Only Audio- too low  
Input model)  
(Optional)  
·
Check if the volume setup of the host  
PC is in minimum position and try to  
raise the volume level.  
EN-20  
ENERGY STAR®  
Acer’s ENERGY STAR qualified products save you money by reducing energy costs  
and helps protect the environment without sacrificing features or performance. Acer is  
proud to offer our customers products with the ENERGY STAR mark.  
What is ENERGY STAR?  
Products that are ENERGY STAR qualified use less energy and prevent greenhouse  
gas emissions by meeting strict energy efficiency guidelines set by the U.S.  
Environmental Protection Agency. Acer is committed to offer products and services  
worldwide that help customers save money, conserve energy and improve the quality of  
our environment. The more energy we can save through energy efficiency, the more we  
reduce greenhouse gases and the risks of climate change. More information refers to  
Acer ENERGY STAR qualified products:  
Produce less heat and reduce cooling loads, and warmer climates.  
Automatically go into “display sleep” and “computer sleep” mode after 15 and  
30 minute of inactivity respectively.  
Wake the monitor when it is in Active Off mode, move the mouse or press any  
keyboard key.  
Computers will save more than 80% energy at “sleep” mode.  
ENERGY STAR and the ENERGY STAR mark are registered U.S. marks  
EN-21  
Declaration of Conformity  
We,  
Acer Incorporated  
8F, 88, Sec. 1, Hsin Tai Wu Rd., Hsichih, Taipei Hsien 221, Taiwan  
Contact Person: Mr. Easy Lai  
Tel: 886-2-8691-3089 Fax: 886-2-8691-3120  
Hereby declare that:  
Product:  
23” LCD Monitor  
Acer  
Trade Name:  
Model Number: P235H  
SKU Number:  
P235H xxx (“x” = 0~9, a ~ z, A ~ Z or Blank)  
Is compliant with the essential requirements and other relevant provisions of the following EC directives,  
and that all the necessary steps have been taken and are in force to assure that production units of the  
same product will continue comply with the requirements.  
EMC Directive 2004/108/EC as attested by conformity with the following  
harmonized standards:  
-. EN55022:2006, AS/NZS CISPR22:2006, Class B  
-. EN55024:1998 + A1:2001 + A2:2003  
-. EN61000-3-2:2006, Class D  
-. EN61000-3-3:1995 + A1:2001+A2: 2005  
Low Voltage Directive 2006/95/EC as attested by conformity with the following  
harmonized standard:  
-. EN60950-1:2001 + A11:2004  
RoHS Directive 2002/95/EC on the Restriction of the Use of certain Hazardous  
Substances in Electrical and Electronic Equipment  
Year to begin affixing CE marking 2009.  
_______________________________  
Easy Lai /Manager  
Regulation, Acer Inc.  
Mar. 6, 2009  
Date  
-
EN-22  
Federal Communications Commission  
Declaration of Conformity  
This device complies with Part 15 of the FCC Rules. Operation is subject to the  
following two conditions: (1) this device may not cause harmful interference, and (2)  
this device must accept any interference received, including interference that may  
cause undesired operation.  
The following local Manufacturer /Importer is responsible for this declaration:  
Product:  
23” LCD Monitor  
Acer  
Trade Name:  
Model Number: P235H  
SKU Number:  
P235H xxx (“x” = 0~9, a ~ z, A ~ Z or Blank)  
Name of Responsible Party: Acer America Corporation  
Address of Responsible Party: 333 West San Carlos St.  
San Jose, CA 95110  
U. S. A.  
Contact Person:  
Phone No.:  
Fax No.:  
Acer Representative  
254-298-4000  
254-298-4147  
EN-23  

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