LM540 LM540 15 inch TFT LCD Monitor User’s Manual by Envision Peripherals, Inc. www.AOCdisplay.com Before operating your monitor, please read this manual thoroughly.
For Your Safety LM540 FCC Statement Notice 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 the instructions, may cause harmful interference to radio communications.
For Your Safety Precautions LM540 • The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. As a safety feature, this plug will only fit into a grounded power outlet. If your outlet does not accommodate the three-wire plug, have an electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of the grounded plug. • Do not use the monitor near water, e.g.
For Your Safety LM540 Special Notes on LCD Monitors General Notes The following symptoms are normal with an LCD monitor and do not indicate a problem: • Do not install the monitor near heat sources such as radiators or air ducts. • 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.
Before You Operate the Monitor LM540 Installing & Removing the Base General Features: Package Contents • 38.1cm(15") TFT Color LCD Monitor The box that your monitor was shipped in should have included the following items: • Crisp, Clear Display for Windows 1. LM540 LCD Monitor • Supports Resolutions up to 1024 X 768 pixels @75Hz, (1024 x 768 @ 60Hz Recommended) 2. Power Cord 3. Windows 95/98/2000/ME/XP INF Driver Disk • EPA ENERGY STAR® 4. Quick Start Guide • Ergonomic Design 5.
Before You Operate the Monitor LM540 Connecting the Wires Using the Power Cord Supplied Caution: Make sure the power cord is the correct type that is required in your area. This LCD monitor has a universal power supply that allows operation in either 100/120V AC or 220/240V AC voltage areas (no user adjustment is required). 1. Connect the built-in video cable into the 15-pin connector on the back of your computer and tighten the two screws. 2.
Before You Operate the Monitor LM540 Adjusting the Viewing Angle For optimal viewing, adjust the monitor's angle to your own preference. • Do not touch the LCD screen when you change the angle. It may cause damage or breakage. • Hold the stand firmly when you change the monitor's angle. • Be careful to avoid pinching your hand in the swivel base. • You can adjust the monitor's angle from -5° to 25°.
Before You Operate the Monitor LM540 Preparing To Install An Optional Wall Mounting Arm (Not Supplied) This monitor can be attached to a wall mounting arm you can purchase separately. Disconnect power before performing this procedure. Follow these step. 1. Pull the screw covers off the back of the monitor. 2. Support the base and remove the screws. 3. Remove the base. 4. Follow the manufacturer’s instructions to assemble the wall mounting arm. See next page for further installation instructions.
Before You Operate the Monitor LM540 nstall An Optional Wall Mounting Arm (Not Supplied) Follow these steps to finish installing the wall mounting arm: 1. Place the wall mounting arm onto the back of the monitor. Line up the holes of the arm with the holes in the back of the monitor. 2. Insert the 4 screws into the holes and tighten. 3. Insert the power cable into the slot on the back of the monitor. NOTE: The Envision LM540 is compatible with the Ergotron line of mounting and arm solutions.
Operating Instructions LM540 Front Panel Buttons Auto: Press this button to automatically set the H-Position, V-Position, Clock and Focus settings. Power Indicator: A green light indicates that the monitor is on. An orange light indicates that the monitor is in Off mode. Brightness: Press this button to adjust the picture’s brightness. If the OSD window is open, this button allows you to move within the window and select desired functions. Power: Press this button to turn the monitor on or off.
Operating Instructions LM540 Adjusting the OSD Settings 1. Press the MENU button to open the OSD window. 5. To save and exit, highlight the EXIT icon and press MENU or leave the monitor alone for 10 seconds. If you want to adjust any other function, repeat steps 2-4. 2. Press the < or > buttons until the desired function is highlighted. Note: When the OSD window is open, the input signal timing settings appear at the top. H: stands for horizontal frequency and V: stands for vertical frequency. 3.
Operating Instructions LM540 Plug & Play DDC1/2B Feature How to Install INF & ICM File This monitor is equipped with VESA DDC1/2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The communication channel is defined in two levels, DDC1 and DDC2B. 1. Insert the Windows 95/98/2000/ME/XP INF Driver Disk into your floppy drive. 2.
Technical Support (FAQ) Problem LM540 Possible Solution Power LED is not ON • Make sure the power button is ON. • Make sure the power cord is properly connected to a grounded power outlet and to the monitor. No Plug & Play • Confirm that your computer is Plug & Play compatible. • Confirm that your video card is Plug & Play compatible. • Inspect the video cable and make sure that none of the pins are bent. • Make sure the Envision monitor drivers are installed.
Technical Support (FAQ) Problem LM540 Possible Solution Screen image is not centered or sized properly • Adjust the CLOCK1 and FOCUS2 settings or press the AUTO button to automatically re-configure the monitor’s settings. Picture has color defects (white does not look white) • Adjust the settings for Red, Green and/or Blue colors or select a different color temperature: C1 or C2. Poor brightness or contrast • The life time of the back-light is limited.
Technical Support (FAQ) Error Message LM540 Possible Solution Input not supported • Your computer has been set to an incompatible display mode. Right click on the desktop and choose Properties. Click the Settings tab then set your computer’s display mode to one of the settings listed in the resolution chart below. Unsupported mode try different video card setting • Your computer’s resolution is out of VESA specifications. Right click on the desktop and choose Properties.
Appendix Specifications LCD Panel Input Driving system TFT Color LCD Size 15.0" (38.1 cm) Pixel pitch (0.297 mm) (H) x (0.297 mm) (V) Viewable angle 120° (H) 100° (V) Response time 25 milliseconds Video Red, Green, Blue Analog Interface Separate Sync. H/V TTL H-Frequency 30 kHz - 63 kHz V-Frequency 50-75 Hz LM540 Plug & Play VESA DDC1/ 2BTM Input Connector D-Sub 15-pin Input Video Signal Analog: 0.7 Vpp 75 OHM, Positive Maximum Screen Size Horizontal: 12.0" (304.
Appendix Specifications (continued) Front Panel Buttons Auto Brightness Contrast Power Switch MENU/ Exit External Controls: Contrast Brightness Focus Clock H-Position V-Position C1 C2 RGB Color temp.
Appendix LM540 Factory Preset Timing Table Standard VGA SVGA XGA LM540 Resolution (in pixels) Horizontal Frequency Vertical Frequency 720 × 400 31.47 kHz 70 Hz 640 × 480 31.47 kHz 60 Hz 640 × 480 35.00 kHz 66.6 Hz 640 × 480 37.50 kHz 75 Hz 800 × 600 37.879 kHz 60 Hz 800 × 600 46.875 kHz 75 Hz 832 × 624 49.725 kHz 75 Hz 1024 × 768 48.363 kHz 60 Hz 1024 × 768 56.476 kHz 70 Hz 1024 × 768 60.02 kHz 75 Hz 1024 × 768 60.241 kHz 74.
Appendix LM540 Connector Pin Assignment Pin Number LM540 Description Pin Number Description 1 Red 9 +5V 2 Green 10 Detect Cable 3 Blue 11 NC 4 Ground 12 DDC-Serial Data 5 Ground 13 H-Sync 6 R-Ground 14 V-Sync 7 G-Ground 15 DDC-Serial Clock 8 B-Ground 19 17NOV04
