LM740
17” TFT LCD Monitor
User’s Manual
By Envision Peripherals
Inc.
www.AOCmonitor.com
FOR YOUR SAFETY
Before operating the monitor, please re ad this manual th oroughly. This manual
should be retained for future reference.
FCC Class B Radio Frequency Interference Statement
WARNING: (FOR FCC CERTIFIED MODELS)
NOTE:
This eq uipment has bee n tested and foun d to co mply with th e li mits
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 the instructions, may cause harmful interference to radio
communications. However, there is no guarantee tha t interfe rence 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 th e equipment o ff and on, the us er is encouraged to try to correct the
interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separati on bet ween the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
As an ENERGY STAR
that th is pro duct meets the ENER GY ST AR
Partner Envision Peripherals Inc. has determined
guid eli nes for ener gy ef fi cien cy.
WARNING:
To prevent fire or shock hazard, do not expose the monitor to rain or moisture.
Dangerously high voltages are present inside the monitor. Do not open the cabinet.
Refer servicing to qualified personnel only.
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PRECAUTIONS:
• Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen
sink, laundry tub, swimming pool or in a wet basement.
• Do not place the monitor on an unstable cart, stand, or table. If the monitor
falls, it can in jure a p erso n and ca use seri ous da mage to t he appl ian ce. Use
only a cart or stand recommended by the manufacturer or sold with the
monitor. If you mount the monitor on a wall or shelf, use a mounting kit
approved by the manufacturer and follow the kit instructions.
• Slots and openings in the back and bottom of the cabinet are provided for
ventilation. To ensure reliable oper ation of the mon itor and to protect it from
overheating, be sure these openings are not blocked or covered. Do not
place the monitor on a bed, sofa, rug, or similar surface. Do not place the
monitor near or over a radiat or or hea t regist er. Do not place t he monit or in a
bookcase or cabinet unless proper ventilation is provided.
• Do not install t he monitor in a l ocation near hea t sources such as radiators or
air ducts, or in a place subject to direct sunlight, or excessive dust or
mechanical vibration or shock.
• 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 supplied to
your home, consult your dealer or local power company.
• The monitor is equipped with a three-pronged grounded plug, a plug with a
third (groundin g) pin. This plug w ill fit only into a grounde d pow er outlet as a
safety feature. If your outlet does not accommodate the three-wire plug,
have an electrician install the correct outlet or ground the appliance safely.
Do not defeat the safety purpose of the grounded plug.
• Unplug the unit during a lightning storm or when it will not be used for long
period of time. This will protect the monitor from damage due to power
surges.
• Do not ov erload pow er strip s and extensi on cord s. Overl oadi ng can r esult i n
fire or electric shock.
• Never push any object into the slot on the monitor cabinet. It could short
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circuit parts causing a fire or electric shock. Never spill liquids on the
monitor.
• Do not attempt to service the monitor by yourself. Opening or removing
covers can expose you to dangerous voltages and other hazards. Please
refer all servicing to qualified service personnel.
• Do not p u ll or bend th e power cable and signal cab le or p la ce the mo nitor or
any heavy obje cts on th e cables. I f the cables ar e damag ed, they may cause
fire or electric shock.
• If you notice any abnormal phenomenon such as strange noise, smoke or
smells, unplug the monitor and contact your dealer or the nearest service
center immediately.
• When moving the monitor, always turn off the switch, unplug the monitor,
and disconnect t he signal cable. If the cables are not properly di sco nne cted
when moving the monitor, it may cause fire or electric shock.
• Do not touch the plug with wet hands. Pulling or inserting the plug with wet
hands may cause electric shock.
• To disconnect the power cable or signal cable, always pull the cable by the
plug. Never pull on the cable as this may cause fire or electric shock.
• To ensure satisfactory operation, use the monitor only with UL listed
computers which have appr op ria te con figure d recept a cle s mar ked betw een
100 - 240V AC, Min. 5A.
• The wall socket shall be installed near the equipment and shall be easily
accessible.
ERGONOMICS RECOMMENDATIONS
Do not operate the monitor in a dark room or against a bright background. For optimal
viewing comfort, the monitor should be just below eye level and 30-60 cm (16-24 inches)
away from your eyes. When using the monitor over a prolonged period of time, a
ten-minute-break per hour is recommended.
iii
GENERAL NOTES
The followi ng sy mpto ms are normal with LCD mo nitor a nd d o no t indi cate a problem.
• Due to the nature o f the fluor escent li ght, the scree n may flick er during initia l
use. Turn off the Power Switch and then turn it on again to make sure the
flicker disappears .
• You may find slightly uneven brightness on the screen depending on the
desktop pattern you use.
• The LCD panel used in this monitor is a very high technology product with
3,932,160 thin fi lm transi stors giv ing you fi ne picture detai ls. Occasionally, a
few non-active pixels may appear on the screen as a fixed point of red,
green, blue, white or black. Please note that this does not indicate a
defective panel.
• Due to the nature of the LCD screen, an after-image of the previous screen
may remain after switching the image when the same image has been
displayed for a long time. The monitor will slowly recover from this.
• LCD monitors have a fixed size & number of pixels. Due to this, an
interpolation is necessary to operate the monitor in a resolution below its
native resoluti on whi ch may sl ig htly de-g rade the di splay q uali ty. Therefore,
it is highly recommended to operate this monitor at its native resolution of
1280x1024 @ 60Hz.
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OTHER NOTES
• The scre en sur face is very soft. Do not rub, touch or ta p th e scre en surface
with sharp object such as pen or pencil. This contact may scratch or
damage the screen. These damages are not covered under the warranty.
• Turn your computer OFF before installing your new monitor. Refer to your
computer manual for the proper shut down procedure.
• Save the ori ginal s hipping cart on and p acking material s, as th ey w ill come in
handy if you ever have to ship your monitor.
• For maximum protectio n, repa ckage your mo nitor as it was or iginally p acked
at the factory.
• T o keep the monitor looking new , periodically clean the case & surfac e of the
TFT-LCD panel with a soft non-fibrous cloth lightly dampened with a glass
cleaner . Do not u se any pa per product s to clean t he screen. Never sp ay the
glass cleaner directly on the monitor. Never use strong solvents such as
thinner, benzene, or abrasive cleaners, since these will damage the case &
panel. As a safety precaution, always unplug the monitor before cleaning it.
v
Disclaimer
Envision Peripherals Inc. makes no representations or warranties, either expressed
or implied, with respect to the contents hereof and specifically disclaims any
warranties, merchantability or fitness for any particular purpose. Further, Envision
Peripherals Inc. reserves the right to revise this publication and to make changes
from time to time i n the conten ts her eof withou t obligati on to noti fy any perso n of such
revision or changes.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
All other trademarks remain the property of their respective owners.
Reference Information
For future reference, write the following information about your monitor in
the space below. The serial number is found on the back of the product or
on the bottom of its stand.
Monitor Information
Product Name: LM740
Serial Number :
Date of Purchase:
Dealer Information
Dealer:
Telephone
Number:
Address:
vi
Ta ble of Contents
1 Important Safety Instructions...........................................i
1
2 Features.............................................................................2
2
3 Unpacking the Monitor............... ... .... ... .... ... .... ... .... ... .... ...3
3
Installation and Removal of the Base…………………….3
4 Hardware Installation .......................................................4
5 Windows driver installation.......... ...................................5
5
6 Setting the Display Resolution........................................6
Choosing the Best Resolution..............................6
Supported Graphics Modes and Refresh Rate
Selection...............................................................7
7 Adjusting the Monitor..................................................9-12
7
8 Frequently Asked Questions ....................................13-15
8
9 Specifications ............................................................16-17
9
vii
11
Please read the following safety instructions before installing or cleaning your
AOC monitor:
1. Unplug t he monitor ’s power cable from the wall ou tlet before cleaning. Do
not use liquid or aerosol cleaners. Use a soft cloth to clean the monitor
housing.
2. Slots and openings on the back or top of the cabinet are provided for
ventilation. They must not be blocked or covered. This product should
never be placed near or over a radiator or o ther heat source, or used in a
built-in installation unless proper ventilation is provided.
3. Never push objects of any kind, or spill liqui d of any kind into this product.
4. Do not attempt to service this product yourself as opening or removing
covers may expose you to dangerous voltages or other hazards.
Important Safety Instructions
5. If any abnormal operation or accident (such as dropping the unit) occurs,
disconnect the monitor from the wall power outlet and contact qualified
service personnel.
1
22
Your AOC LM7 40 Monit or featu res:
♦ SXGA (1280 x 1024 pixel) Resolution LCD Panel
♦ High Brightness – 270 cd/m
♦ High Contrast Ratio – 500:1 (typical)
♦ True Colour Display
♦ High Quality Expansion
♦ Auto Adjustment Function
Features
2
(typical)
With FRC support for 16.7M colours, the AOC LM740 monitor offers you
better image quality.
With any resolution within the monitor’s specified range, your AOC
LM740 monitor can expand the image to full screen.
The auto-adjustme nt key aut omatically optimis es the image.
♦ Plug and Play Compatibility with Microsoft
Me and XP
♦ Space Saving - only 199 mm deep
♦ Light Weight - only 4.0 kg
♦ Lower Power Consumption
40 W maximum during operation
♦ Power Saving
Power management complies with EPA ENERGY STAR standard. When
the sy st em is i dl e ( i n mo nit o r o ff mod e) , t he mon it o r au t om ati ca ll y cut s i ts
power consumption to less than 1 W.
♦ On Screen Display
Allows you to adjust all settings sim ply using on-screen menus.
Windows 95, 98, 2000,
2
33
Pleas e ch ec k th at the f ollow i ng i tem s are inc lu ded w it h y our m onit or. If th ey ar e
missing or damaged, please contact your place of purchase
Unpacking the Monitor
immediately
.
Monitor
1 pc
Signal Cable
Power Cable
1 pc
1 pc
QSG
(Quick Start
Guide)
1 pc
CD User’s
Manual
Installation and Removal of the Base
1. Installation 2. Removal
* Lay the monitor face down on the edge
of a table. Make sure to use a soft
padding to protect the screen of the
monitor.
3
44
Your monitor is equipped with an automatic power supply with a voltage range
from 100 to 240 Volts AC at a frequency of 50 to 60 Hz. Make sure that your
local power supply is within the supported range. If you are unsure, please
contact your electricity supplier.
To install your AOC LM740 monitor:
1. Make sure t hat the power to the comput er and t he pow er to t he monit or ar e
both turned off.
2. Connect the D-sub video cable from the monitor’s VGA input connector to
the VGA output connector of the computer‘s graphics card.
3. Connect the power cord from the monitor’s power jack to an AC power
socket. Please make sure, that you have easy access to the power socket
so you can disconnect the unit from the power socket should you need to.
Hardware Installation
4
1.
Power cable
2.
D-sub Video Cable
55
The AOC LM740 is fully Windows compatible so no specific windows drivers
are requ ired to be loaded .
Windows 98, ME, and 2000
The fi rst tim e y ou start Wind ows af ter c onn ect in g y our new mo nito r, the sys tem
will detect the monitor and automatically start the Add New Hardware wizard.
Just follow the prompts to load the native Plug and Play drivers.
Windows XP
The first time you start Windows after connecting your new monitor Windows
Windows driver Installation
XP wi l l automatically load the native Plug and Play drivers.
5
66
Choosing The Best Resolution
All Liquid Crystal Displays (LCDs) have a fixed resolution that is the same as
the maximum resolution that may be displayed on the LCD. In the case of the
LM740 the LCD resolution is 1280 x 1024 pixels. This is also known as the
“nati ve” res olution of the monitor. Lower r esolutions ca n be displ ayed at full
screen through an interpolation circuit. Because the lower resolution must be
expanded, the quality of the displayed image is not as good as that available
when t he nat ive r esol utio n is di spl ayed. For o ptima l per form ance from a ny LCD
monitor, you must use the monitor’s native resolution.
If you are using Windows 95, 98, 2000, Me, XP or NT 4.0, you can change the
resolution as follows:
Setting the Display Resolution
1. Double-click the Display icon in the control panel.
2. From the Display Properties dialogue box, select the Settings tab.
There is a slid er on the r ight-hand sid e in the middle of the dialogue box
that alters the displayed resolution. Set the resolution to 1280 x 1024.
3. For Windows NT users only: select a r efres h r at e of ei t h e r 6 0H z o r 75 Hz
and cli ck Test. A test pattern will be displayed. Make sure that there are
no error messages shown by the monitor. If an error message is
displayed, check the resolution and refresh rate settings or choose a
different refresh rate.
4. Click OK to close Display Properties.
6
Supported Graphics Modes and Refresh Rate Selection
There is no need to choose the highest possible refresh rate when using an
LCD monitor . It is not t echnically possible f or an LCD monito r to flick er. Even at
a refresh rate of 60 Hz you will get an absolutely flicker-free image.
For best results, it is important that you set the graphics adaptor to use one of
the monitor’s preset display modes shown in Tab l e 1 on the next page. Other
graphics signals may be displayed poorly or not at all. Note that the LM740’s
preset modes correspond to VESA or Apple Macintosh standard graphics
signals for these resolutions. All recent models of graphics adaptor should be
able to support these modes. For the native resolution of 1280 x 1024 pixels,
for example, refresh rates of 60, 70 and 75 Hertz are supported.
With Windows 95, 98, ME, 2000 or XP you can change the refresh rate of the
graphics signal as follow s:
1. Double click the Display icon i n the control panel.
2. From the Display Properties dialogue box, sel ect the Settings tab and
click the Advanced Properties button.
3. For Windows 95, 98, and ME select the Adapter tab, for 2000 and XP
select the Monitor tab. The refresh rate selection field is located in the
centre, at the bottom of the dialogue box.
4. Choose a refresh rate that corresponds with one of the factory modes from
the table below.
5. Click Apply, and then OK twice.
Please Note:
• Graphics modes that are not listed in the table may not be supported. For
an opti mal picture it is recommended tha t you choose a g raphics mode
with a resolution of 1280 x 1024 pixels t hat is list ed in Table 1 on the next
page. Resolutions of 640 x 480, 800 x 600, 1024 x 768 and 1280 x 1024
pixels are supported. The default setting may require some adjustment
before use.
• The displayed image may show some distortion or noise that can be
7
caused by the signal from the VGA card if it does not correspond with the
usual standard. T hi s is not however, a probl em with th e m o ni t o r. If it is still
visible after using the Automatic adjustment, you can usually improve the
displayed image by manually adjusting the phase, horizontal positio n and
pixel frequency settings using the "Geometry" menu. See Chapter 7,
Adjusting the Monitor, for more details.
• When you shut Windows down you may see interference lines on your
screen. This caused by the manner in which Windows controls the
graphics card at this point and is normal with all LCD monitors.
• To extend the service life of the product, we recommen d that you use your
computer's power management functions to turn the monitor off after
extended idle periods.
Incoming display mode (Input timing)
Horizontal
Resolution
640x350 31.47 70.08 25.17 DOS
720x400 31.47 70.08 28.32 DOS
640x480 31.47 60.00 25.18 DOS
640x480 37.86 72.80 31.5 VESA
640x480 37.50 75.00 31.5 VESA
800x600 35.16 56.25 36.00 VESA
800x600 37.88 60.32 40.00 VESA
800x600 48.08 72.19 50.00 VESA
800x600 46.86 75.00 49.50 VESA
1024x768 48.36 60.00 65.00 VESA
1024x768 56.48 70.10 75.00 VESA
1024x768 60.02 75.00 78.75 VESA
Frequency
(kHz)
Vertical
Frequency
(Hz)
Dot Clock
Frequency
(MHz)
Remark
1280x1024 64.00 60.00 108.00 VESA
1280x1024 80.00 75.00 135 VESA
Table 1
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Pictur e O pt im isation
The easiest way to obtain an optimal picture is by using the Auto button for 2
second s. Th is only wor ks reli ably if t he graph ics a dapto r is set to use one of t he
monitor’s factory modes (see Tab le 1 in the previous chapter) and if you are
displaying a suitable stationary image (such as the windows desktop).
The monitor will remember the settings obtained by the auto calibration
settings and use them whenever you turn the monitor on. Note that you may
need to readjust the monitor if it is connected to a different computer or if the
computer’s graphics adaptor is replaced.
If yo u are st il l n ot sat i sf ie d w ith t he res ul t, y o u can enh an ce the imag e by us in g
the monitor’s manual adjustment functions.
Adjusting the Monitor
OSD Adjustment
Adjustments to the displayed image are made using the On-Screen Display
(OSD) and the buttons on the front of the monitor.
9
(from le ft to right)
Menu
!
"
#
$
SELECT
/AUTO
POWER
Enter OSD menu.
Enter submenus or select items within OSD menu.
Move the selection cursor upwards within the OSD menu.
Move the selection cursor downwards within the OSD menu.
Adjust OSD functions. (Decrease)
Adjust OSD functions. (Increase)
Automatically adjust the vertical, horizontal position, pixel
phase a nd pixel clock.
Exit OSD menu/submenus.
Power button
OSD MENU:
Brightness & Contrast Adjustment
10
Tracking Adjustment
Position Adjustment
11
Color Adjustment
Other
12
88
The image is blurred, how can I get the best quality picture?
♦
Read chapter 6, Setting the Display Resolution, and select a graphics
signal with the correct resolution and refresh rate. Then read chapter 7,
Adjusting the Monitor, and make adjustments to the displayed image
based on these instructions.
♦
Have you used a VGA extension cable?
If so, remove the extension cabl e and ch eck t he dis play ed image. H as the
image quality improved? Optimise the image using the procedures in
chapter 7 with the extension cable removed. Reconnect the extension
cable once the image has been optimised. Depending on the
characteristics and type of the extension cable, some blurring or distortion
may occur due to conduction losses of the extension cable. You can
minimise these losses by using an extension cable with better conduction
quality or with a built-in booster.
Frequently Asked Questions
♦
Does the blurring only occur at resolutions lower than the native
(maximum) resolution?
Please read chapter 6, Setting the Display Resolution. Select a graphics
signal that uses the monitor’s the native resolution (1280 x 1024 pixels).
Why does the image look yellow, blue or pink instead of showing the
corre ct colours?
♦
The most common cause of this problem is a loose VGA signal cable or
connector. Check that the cable is securely connected to the computer.
♦
Check the VGA signal c able for damag e. If any pins are bent or broken off,
contact your dealer or an authorized Envision Peripherals Inc. service
agent
13
No image is displayed, what can I do?
♦
Check that the light (LED) next to the monitor’s power button is lit and is
green in colour. If th e LED i s green, pre ss the MENU button on the mo nitor
to access the On Screen Display. If the message NON PRESET MODE
appears there, plea se read c hapter 6 , Setting the Display Resolution and
reset the graphics card to one of the monitor’s supported gr aphics s ignals .
♦
If the LED is orange the monitor is in power saving mode. Press a button
on the c omp uter k eybo ard o r mov e the m ouse to wak e the comput er. If t hat
does not help, check that the VGA cable is securely plugged into the
computer. Also check the pins of the VGA ca ble’s connector. If any pins are
bent or broken off, then contact your dealer (see Chapter 10 for details).
♦
If the LE D is n ot lit at al l, check t h at t h e m o ni tor is pl ug ge d into the power
supply mains socket and t hat the power sw itch is turned o n. Check t hat the
monitor’s power switch is also turned on.
The image is or distorted, flashes or flickers:
♦
Check that the monitor’s signal cable is securely connected to the
computer.
♦
Read the chapters 6 and 7 of this manual, then select the correct
resolution, refresh rate and make adjustments based on these instructi ons.
The image is displaced in one direction:
♦
Use the Hor. P osition (horizontal position) adjustment in the Geometry
menu of the monitor’s OSD to reposition the image.
♦
Read the chapter s 6 and 7 and th en select t he correct resol ution, refresh
rate and make adjustments based on these instruction s.
The display shows NO SIGNAL error message:
♦
Check that the monitor’s signal cable is securely connected to the
computer.
♦
The moni tor is in power savi ng mode. Press a bu tton on the comp uter
keyboard or move the mouse to wake the computer. If that does not help,
check that the V GA cable i s securely plug ged into the comp uter.
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The di splay shows OUT OF FREQUENCY error message:
♦
Read chapter 6, Setting the Display Resolution, and select a graphics
signal with the correct resolution and refresh rate.
15
99
Model:
Display Characteristics
Display Type 17“ active matrix Thin Film
Viewable Diagonal A rea 43.18 cm / 17”
Native (Maximum) R esoluti o n 1,280 x 1,024 pixels
Colors 16.7 million (6bpp+dithering)
Contrast Ratio 500:1 (typical)
Brightness 270 cd/ m² (typical)
Response Time 12 ms (typical)
Viewing Angle (Horizontal, Vertical) 70°/70° , 70°/70°(typical)
Specifications
AOC LM740
Transistor Liquid Crystal Display
Dot Pitch 0.264 mm
User Interface
Controls Mains power switch, Automatic
On-Screen Display Functions Contrast, Brightness, Vert. & Hor.
image adjustm ent , 6 OSD bu ttons
Image Position, Phase, Pixel
Clock, Colour Management, OSD
Position, OSD Language, Status
Indicator
16
Input Signal
Line Frequency 31 - 83kHz multi-frequency
Image Frequency (Refresh Rate) 56 - 75Hz
Video Signal RGB analogue (Positive polarity)
Synchronization TTL sep arate, composite TTL
Signal Connection 15-pin mini D-sub cable
Physical Characteristics
Power Management Energy Star
Withi n the parameters detailed in
chapt er 7
0.7 Vpp/75 Ohm
Maximum Power Consumption 40 W a tts
Power Saving Mode < 1 Watts
Operat i ng Volt a g e Automatic switched mode power
supply, 100 - 240 V, 50 - 60 Hz
Dimensions (W x H x D) 381 x 426 x 199mm
Weight 4.0 kg
Temperature (Operating) 5°C - 40°C
Air Humidity (Operating) 20% - 85%
Regulatory Certification
Safety CSA, cULus, TUV/GS
EMI/EMC FCC, CE,
Other
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