LM740 17” TFT LCD Monitor User’s Manual By Envision Peripherals Inc. www.AOCmonitor.
FOR YOUR SAFETY Before operating the monitor, please read this manual thoroughly. This manual should be retained for future reference. FCC Class B Radio Frequency Interference Statement WARNING: (FOR FCC CERTIFIED MODELS) NOTE: 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.
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 injure a person and cause serious damage to the appliance. 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.
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 pull or bend the power cable and signal cable or place the monitor or any heavy objects on the cables. If the cables are damaged, they may cause fire or electric shock.
GENERAL NOTES The following symptoms are normal with LCD monitor and do not indicate a problem. • • • • • Due to the nature of the fluorescent light, the screen may flicker during initial 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.
OTHER NOTES • • • • • The screen surface is very soft. Do not rub, touch or tap the screen 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 original shipping carton and packing materials, as they will come in handy if you ever have to ship your monitor.
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 in the contents hereof without obligation to notify any person of such revision or changes.
Table of Contents 1 Important Safety Instructions ...........................................i 2 Features.............................................................................2 3 Unpacking the Monitor.....................................................3 Installation and Removal of the Base…………………….3 4 Hardware Installation .......................................................4 5 Windows driver installation .............................................5 6 Setting the Display Resolution.............
1 Important Safety Instructions Please read the following safety instructions before installing or cleaning your AOC monitor: 1. Unplug the monitor’s power cable from the wall outlet 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.
2 Features Your AOC LM740 Monitor features: ♦ SXGA (1280 x 1024 pixel) Resolution LCD Panel ♦ High Brightness – 270 cd/m (typical) 2 ♦ High Contrast Ratio – 500:1 (typical) ♦ True Colour Display With FRC support for 16.7M colours, the AOC LM740 monitor offers you better image quality. ♦ High Quality Expansion With any resolution within the monitor’s specified range, your AOC LM740 monitor can expand the image to full screen.
3 Unpacking the Monitor Please check that the following items are included with your monitor. If they are missing or damaged, please contact your place of purchase immediately. Monitor 1 pc Signal Cable 1 pc Power Cable 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.
4 Hardware Installation 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 that the power to the computer and the power to the monitor are both turned off. 2.
5 Windows driver Installation The AOC LM740 is fully Windows compatible so no specific windows drivers are required to be loaded. Windows 98, ME, and 2000 The first time you start Windows after connecting your new monitor, the system will detect the monitor and automatically start the Add New Hardware wizard. Just follow the prompts to load the native Plug and Play drivers.
6 Setting the Display Resolution 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 “native” resolution of the monitor. Lower resolutions can be displayed at full screen through an interpolation circuit.
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 technically possible for an LCD monitor to flicker. 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 Table 1 on the next page. Other graphics signals may be displayed poorly or not at all.
caused by the signal from the VGA card if it does not correspond with the usual standard. This is not however, a problem with the monitor. If it is still visible after using the Automatic adjustment, you can usually improve the displayed image by manually adjusting the phase, horizontal position 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.
7 Adjusting the Monitor Picture Optimisation The easiest way to obtain an optimal picture is by using the Auto button for 2 seconds. This only works reliably if the graphics adaptor is set to use one of the monitor’s factory modes (see Table 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.
(from left to right) Menu 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) SELECT Automatically adjust the vertical, horizontal position, pixel /AUTO phase and pixel clock. Exit OSD menu/submenus.
Tracking Adjustment Position Adjustment 11
Color Adjustment Other 12
8 Frequently Asked Questions 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 cable and check the displayed image.
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 the LED is green, press the MENU button on the monitor to access the On Screen Display. If the message NON PRESET MODE appears there, please read chapter 6, Setting the Display Resolution and reset the graphics card to one of the monitor’s supported graphics signals. ♦ If the LED is orange the monitor is in power saving mode.
The display 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.
9 Specifications Model: AOC LM740 Display Characteristics Display Type 17“ active matrix Thin Film Transistor Liquid Crystal Display Viewable Diagonal Area 43.18 cm / 17” Native (Maximum) Resolution 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) Dot Pitch 0.
Input Signal Line Frequency 31 - 83kHz multi-frequency Image Frequency (Refresh Rate) 56 - 75Hz Within the parameters detailed in chapter 7 Video Signal RGB analogue (Positive polarity) 0.
