AOC 540 Computer Monitor User Manual
Contents
1. Auto Exit Power Button Brightness Power Indicator Contrast Menu O Auto Press this button to automatically set o Power Indicator A green light indicates meny the H Position V Position Clock and Focus that the monitor is on An orange light settings indicates that the monitor is in Off mode Brightness Press this button to adjust the Power Press this button to turn the E picture s brightness If the OSD window is monitor on or off The power indicator will open this button allows you to move within light up the window and select desired functions On screen Display OSD Press the Contrast Press this button to adjust the MENU button to open the OSD window picture s contrast If the OSD window is eee and adjust settings on your monitor open this button allows you to move within See next page the window and select desired functions MENU Press this button to open the OSD menu window or exit from the OSD window LM540 10 17NOV04 Moc Operating Instructions LM540 Adjusting the OSD Settings Focus Brightness e Adjusts the picture s Adjusts focus pixel clock signal brightness Contrast Clock Adjusts the Adjusts clock pixel frequency picture s contrast H Position Adjusts the horizontal position of the picture Red Adjusts the intensity of red Green Adjusts the intensity of green V Position Adjusts the2. Serial Clock 8 B Ground 17NOV04
3. place monitor in direct sunlight or in areas with excessive dust mechanical vibration or shock e Save the original shipping carton and packing materials in case you need to ship your monitor Be sure to repackage your monitor as it was originally packed at the factory e Periodically clean your monitor with a soft cloth Stubborn stains may be removed with a cloth lightly dampened with a mild detergent solution Never use strong solvents such as thinners benzene or abrasive cleaners since these will damage the cabinet Always unplug the monitor before cleaning it Using the Right Power Cord The supplied power cord is a NEMA 5 15 style plug It is UL listed and CSA labeled for 125 volts AC If the monitor will be connected to your computer s power outlet use a minimum No 18 AWG type SJT or SVT three conductors cord with one end terminating with a male grounded plug rated 10A 250V CEE 22 The other end must terminate with a molded on type connector body rated 10A 250V having standard CEE 22 female configuration 17NOV04 dle Lz Installing amp Removing the Base Install General Features 38 1cm 15 TFT Color LCD Monitor Crisp Clear Display for Windows Supports Resolutions up to 1024 X 768 pixels 75Hz 1024 x 768 60Hz Recommended EPA ENERGY STAR Ergonomic Design Space Saving Compact Case Design LM540 Before You Operate the M
4. 1024 x 768 pixels LM540 10 to 90 Weight 6 6 Ibs 3 0 Kg 16 17NOV04 AOC Specifications continued Appendix LM540 Optimal Viewing Mode 1024 x 768 x 60 Hz Front Panel Buttons Auto Brightness 14 1 in Contrast 356 mm Power Switch MENU Exit 14 0 in External Functions Contrast 355 mm Controls Brightness Focus ro Clock 5 9 in H Position 150mm V Position C1 C2 EZ RGB Color temp Reset Exit fp 5 9 Ibs EPA ENERGY Yes 2 7 Kg STAR Power Consumption 25 Watts Maximum Regulatory UL CSA FCC Compliance TUV GS CE Windows XP Logo LM540 17 17NOV04 Moc Appendix LM540 Factory Preset Timing Table Sangard Ge Gide gida VGA 720 x 400 31 47 kHz 70 Hz 640 x 480 31 47 kHz 60 Hz 640 x 480 35 00 kHz 66 6 Hz 640 x 480 37 50 kHz 75 Hz SVGA 800 x 600 37 879 kHz 60 Hz 800 x 600 46 875 kHz 75 Hz 832 x 624 49 725 kHz 75 Hz XGA 1024 x 768 48 363 kHz 60 Hz 1024 x 768 56 476 kHz 70 Hz 1024 x 768 60 02 kHz 75 Hz 1024 x 768 60 241 kHz 74 9 Hz LM540 18 17NOV04 AOC Appendix Connector Pin Assignment LM540 LM540 15 Pin Color Display Signal Cable 19 Pin Number 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
5. LM540 LM540 15 inch TFT LCD Monitor User s Manual by Envision Peripherals Inc www AOCdisplay com E Before operating your monitor please read this manual thoroughly EYE S VALU E LM540 17NOV04 AOC FCC Statement 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 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 1 Reorient or relocate the receiving antenna 2 Increase the separation between 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 LM540 For Your Safety LM540 Notice 1 The changes or modifications not expressly approved by the party responsible for complianc
6. 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 radiator or heat register Do not place the monitor in a bookcase or cabinet unless proper ventilation is provided The monitor should be operated only with 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 LM540 For Your Safety 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 Unplug the unit during a lightning storm or when it will not be used for long periods of time This will protect the monitor from damage due to power surges Do not overload power strips and extension cords Overloading can result in fire or electric shock Never push any object into the slot on the monitor cabinet It could short circuit parts causing a fire or electric shock Never spill liquids on the monitor Do not attempt to service the monitor yourself opening or removing covers can expose you to dangerous voltage and other hazards Please refer all servicing to qualifi
7. can request EDID information over the DDC2B LM540 Operating Instructions LM540 How to Install INF amp ICM File 1 Insert the Windows 95 98 2000 ME XP INF Driver Disk into your floppy drive 2 Follow the Add New Hardware Wizard instructions on the screen 3 If the wizard asks for the location of the driver file select drive A and press Next 12 17NOV04 AOC Technical Support FAQ LM540 Problem Possible Solution Power LED is not ON e Make sure the power button is ON e Make sure the power cord is properly connected to a grounded power outlet and to the monitor No Plug amp Play e Confirm that your computer is Plug amp Play compatible e Confirm that your video card is Plug amp Play compatible e Inspect the video cable and make sure that none of the pins are bent e Make sure the Envision monitor drivers are installed AOC monitor drivers are available at www AOCdisplay com Picture is fuzzy e Adjust the Contrast and Brightness settings Picture bounces or a wave pattern is present in the picture e Move electrical devices away from the monitor They may be causing electrical interference Power LED is ON green or orange light is ON but there is no video or picture e Press a key on the keyboard or wiggle the mouse to re activate the monitor e Make sure the video cable is properly connected to the computer e Inspect the video cable and make sure none of the
8. ck 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 Resolution Chart Resolution Vertical Resolution Vertical in pixels Frequency in pixels Frequency 640 x 480 60 Hz 800 x 600 60 3 Hz 640 x 400 70 Hz 800 x 600 72 2 Hz 640 x 350 70 Hz 800 x 600 75 Hz 720 x 400 70 Hz 832 x 624 74 5 Hz 640 x 480 72 8 Hz 1024 x 768 60 Hz 640 x 480 75 Hz 1024 x 768 70 Hz 640 x 480 66 67 Hz 1024 x 768 75 Hz 800 x 600 56 3 Hz 1024 x 768 74 92 Hz LM540 15 17NOV04 Moc Appendix L540 Specifications Plug amp Play VESA DDC1 LCD Driving TFT Color LCD ESE Panel system Size 15 0 38 1 cm Input Connector D Sub 15 pin Input Video Signal Analog 7 l 0 7 Vpp Pixel pitch 0 297 mm H x Si 0 297 mm V 75 OHM Positive Maximum Screen Size Horizontal Viewable 120 H 100 V E angle 12 0 304 1 mm Vertical Input Response 25 milliseconds 9 0 228 1 mm time Video Red Green Blue Power Source 100 264 VAC Analog Interface 47 63 Hz Separate H V TTL Syne Environmental Operating Temp H Frequency 30 kHz 63 kHz Considerations 32 to 122 F 0 to 50 C V Frequency 50 75 Hz Storage Temp Display Colors 16 million colors 13 to 140 F 25 to 60 C Operating Dot Clock 80 MHz Humidity Maximum Resolution
9. e could void the user s authority to operate the equipment 2 Shielded interface cables and AC power cord if any must be used in order to comply with the emission limits 3 The manufacturer is not responsible for any radio or TV interference caused by unauthorized modification to this equipment It is the responsibility of the user to correct such interference As an ENERGY STAR Partner Envision Peripherals Inc has determined that this product meets the ENERGY STAR guidelines for energy efficiency Warning To prevent fire or shock hazard do not expose the monitor to rain or moisture Dangerously high voltage is present inside the monitor Do not open the cabinet Refer servicing to qualified personnel only 17NOV04 AOC 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 e Slots and openings in the back and bottom of the cabinet are provided for ventilation To ensure reliable operation of the monitor and to protect it from overheating be sure these openings
10. ed service personnel To ensure satisfactory operation use the monitor only with UL listed computers which have appropriately configured receptacles marked between 100 240 V AC Min 3 5A The wall socket should be installed near the equipment and should be easily accessible 17NOV04 AOC Special Notes on LCD Monitors The following symptoms are normal with an LCD monitor and do not indicate a problem e 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 e You may find slightly uneven brightness on the screen depending on the desktop pattern you use e The LCD screen has effective pixels of 99 99 or more It may include blemishes of 0 01 or less such as a missing pixel or a pixel lit all of the time e Due to the nature of the LCD screen an after image of the previous screen may remain after switching from an image that has been displayed for hours This after image could require several hours to disappear e The life of the fluorescent light used in the LCD monitor is approximately 20 000 hours Contact your dealer or EPI service center for replacement when the screen is dark flickering or not lighting up Never attempt to replace it by yourself LM540 For Your Safety LM540 General Notes e Do not install the monitor near heat sources such as radiators or air ducts e Do not
11. ent for service Horizontal or vertical disturbances on the screen e Adjust the CLOCK and FOCUS settings or press the AUTO button to automatically re configure the monitor s settings e Use Win 95 98 shut down mode 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 picture s width is incorrect 2FOCUS adjusts the phase of the pixel clock signal With a wrong phase adjustment the picture has horizontal disturbances with very light screen images Note For FOCUS and CLOCK adjustment use dot pattern or Win 95 98 shut down mode pattern Error Message Possible Solution Cable not connected e Make sure the video cable is properly connected to the computer If the connector is loose tighten the connector s two screws e Inspect the video cable and make sure that none of the pins are bent LM540 14 17NOV04 Technical Support FAQ LM540 Error Message Possible Solution Input not supported e 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 e Your computer s resolution is out of VESA specifications Right cli
12. onitor LM540 Remove Package Contents The box that your monitor was shipped in should have included the following items 1 Power Cord Windows 95 98 2000 ME XP INF Driver Disk Quick Start Guide Booklet Containing Warranty amp Safety aR WwW D LM540 LCD Monitor Information 17NOV04 Moc Before You Operate the Monitor LM540 Connecting the Wires Using the Power Cord Supplied 1 Connect the built in video cable into the 15 pin connector on the back of your computer and tighten the two screws 2 Connect the power cord into your LCD monitor s Power Adapter 3 Connect the Power Adapter to your monitor 4 Plug the other end of the power cord into a grounded AC outlet or UL approved power strip LM540 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 If the AC outlet is not grounded with three holes install the proper grounding adapter not supplied 17NOV04 AOC Before You Operate the Monitor LM540 Adjusting the Viewing Angle For optimal viewing adjust the monitor s angle to your own preference e Hold the stand firmly when you change the monitor s angle e You can adjust the m
13. onitor s angle from 5 to 25 LM540 Do not touch the LCD screen when you change the angle It may cause damage or breakage Be careful to avoid pinching your hand in the swivel base 17NOV04 Moc 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 LM540 8 17NOV04 ANnOC 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 Visit their website at www ergotron com for more information on the many ways on which you can mount your AOC LCD monitor LM540 9 17NOV04 Moc Operating Instructions LM540 Front Panel Buttons
14. pins are bent e Make sure your computer is operating correctly by pressing the CAPS LOCK key and observing whether the CAPS LOCK light turns ON or OFF Dead Pixel Criteria e In order to provide the highest performing products EPI has set the following limits as to the maximum allowable number of bad pixels 5 Bright Sub pixels or 5 Dark Sub pixels or combination of 8 Dark amp Bright The panel used on this product has a total of 2 359 296 sub pixels So even the maximum allowed of 6 bad sub pixels would only amount to a very small 0 00033 of the total sub pixels Missing one of the primary colors RED GREEN or BLUE e Inspect the video cable and make sure that none of the pins are bent e Make sure the video cable is properly connected to the computer LM540 13 17NOV04 AOC Technical Support FAQ LM540 Problem Possible Solution Screen image is not centered or sized properly e Adjust the CLOCK and FOCUS settings or press the AUTO button to automatically re configure the monitor s settings Picture has color defects white does not look white e Adjust the settings for Red Green and or Blue colors or select a different color temperature C1 or C2 Poor brightness or contrast e The life time of the back light is limited After 20 000 hours the luminance of the light has been reduced to half of its original value Please send the monitor to an authorized service ag
15. vertical position of the picture Blue Adjusts the Language intensity of blue Adjusts the language selection Exit Color Temp 2 Saves changes and OSD disappears x 0 291 y 0 306 Reset Clears the current Color Temp 1 configuration and x 0 301 y 0 317 reapplies auto configuration 1 Press the MENU button to open the OSD 5 To save and exit highlight the EXIT icon and window press MENU or leave the monitor alone for 10 2 Press the lt or gt buttons until the desired seconds If you want to adjust any other function is highlighted function repeat steps 2 4 3 Press MENU to open the function s window Note When the OSD window is open the input 4 Press the lt or gt buttons to change the settings of the function LM540 signal timing settings appear at the top H stands for horizontal frequency and V stands for vertical frequency 11 17NOV04 AOC Plug amp Play DDC1 2B Feature 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 The DDC1 is a unidirectional data channel from the display to the host that continuously transmits EDID information The DDC2B is a bidirectional data channel based on the I C protocol The host
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