Computer Tech Link 21dn User's Manual
Contents
1. Picture bounces or a wave pattern is present in the Keep the devices that may cause electrical interference away from the monitor picture See the FCC information at the front cover of the manual Color looks blotchy Operate Degauss once Picture is blurred Adjust Contrast and Brightness 4 Operate Degauss once Edges of available area on the screen are not straight Adjust Geometry Control Pincushion Trapezoid Mode a H Freq KHz V Freg Hz Remark VGA 480 640 X 480 31 5 60 Non interlaced VGA 400 720 X 400 31 3 70 Non interlaced VESA 43K 640 X 480 43 0 85 Non interlaced VESA 46K 800 X 600 46 9 75 Non interlaced VESA SVGA 85 800 X 600 53 7 85 Non interlaced VESA 60K 1024 X 768 60 0 75 Non interlaced VESA 1024 85 1024 X 768 68 7 85 Non interlaced VESA 1280 75 1280 X 1024 80 0 75 Non interlaced VESA 1600 70 1600 X 1200 87 5 70 Non interlaced VESA 1280 85 1280 X 1024 91 1 85 Non interlaced VESA 1600 75 1600 X 1200 93 8 75 Non interlaced VESA 1600 85 1600 X 1200 106 3 85 Non interlaced 12 13 DESCRIPTION FOR D SUB CONNECTOR Pin Signal 1 Red 2 Green 3 Blue 4 GND 5 GND 6 GND Red 7 GND Green 8 GND Blue 9 5Vdc 10 GND H Sync 11 GND V Sync 12 Bi directional Data SDA 13 Horizontal Sync 14 Vertical Sync VCLK 15 Data Clock SCL GND Ground 14 S N 99786283182. the monitor and must be easily accessible As an ENERGY STAR Partner Computer Technology Link Inc has determined that this product meets the Energy Star guidelines for energy efficiency CONTENTS INTRODUCTION Introduction cresca 1 This manual explains how to correctly install operate and get the best performance from your monitor Please read this user s Product PEATEs eiln cinta iii trail 2 guide carefully before installing your monitor then keep it near Setup ta e o n Les 3 your monitor for quick reference C ting the D sub Signal Cable 3 CI R E RS First please check that the contents of the box corresponds with Connecting the BNC Signal Cable ii 4 the following checklist C ting the P Cordis Gorle ata luz 5 onnecting the Power Cor ECC Power Management System ii 5 Pavercord DDC for Plug amp Play A NITRO OA TRIAL NET Te 5 o Signal cable Operation amp Adjustment Li 6 User s Guide Sp cifications ipotesi tall siede 12 Warranty Handbook Registration Card Factory Preset Timings i 12 i a Troubleshooting ii 13 If any item is missing or damaged please contact your dealer Description for D sub Connector iii 14 Please keep the box and packing materials so that you may properly store or transport your monitor PRODUCT FEATURES The convenient and us
3. S GUIDE COLOR MONITOR Model No 21dn IMPORTANT SAFEGUARDS 1 Read all of these instructions 2 Save these instructions for later use 3 Unplug this monitor from the wall outlet before cleaning Do not use liquid cleaners or aerosol EN cleaners Use a damp cloth for i cleaning 4 Do not use attachments not recommended by the monitor manufacturer as they may cause hazards 5 Do not use this monitor near water e g near a bathtub washbowl kitchen sink or laundry tub in a wet basement or near a swimming pool etc 6 Do not place this monitor on an y unstable cart stand or table The 22 monitor may fall causing serious W injury to a child or adult and serious damage to the appliance 7 Slots and openings in the cabinet and the back or bottom are 97 provided for ventilation to ensure C A reliable operation of the monitor and to protect it from overheating These openings must not be blocked or covered The openings should never be blocked by placing the monitor on a bed sofa rug or other similar surface This monitor should never be placed near or over a radiator or heat register This monitor should not be placed in a built in installation such as a bookcase unless proper ventilation is provided 8 This monitor should be operated only from the type of power source NE indicated on the marking label If you are not sure of the power supplied to your home consult your monitor d
4. ard or move your mouse If the signal cable is connected loosely or disconnected the power saving feature will not operate DISPLAY DATA CHANNEL FOR PLUG AND PLAY If you use the monitor with a computer that complies with DDC1 2B CI of VESA the host video card automatically configures itself without your intervention in a way that best fits the attached monitor The Display Data Channel DDC allows the monitor to inform the host system about configuration information for optimum use of the monitor Use of the video card utility is not required to match the resolutions and refresh rates of the monitor and video card OPERATION amp ADJ USTMENT Control Panel BRIGHTNESS MENU CONTRAST y A lt gt Move cursor to the right window on the OSD window Increase the value of any selected function e Move cursor to the left window on the OSD lt window Decrease the value of any selected function Launch OSD On Screen Display MENU window e Move cursor to the high window on the OSD window Increase the value of V size or V center Move cursor to the low window on the OSD window Decrease the value of V size or V center Hot Key BRIGHTNESS CONTRAST 9 a 50 Key Process LANGUAGE CENTER ENGLISH DEUTSCH ESPANOL FRANCAIS ITALIANO t vy Y GEOMETRY 11d lt H V E 2 o 50 50 PINCUSHION DEGAUSS ZOOM When y
5. ealer or local power company 9 This monitor is equipped with a I 3 wire grounding type plug That is a plug having a third m grounding pin This plug will only fit into a grounding type power outlet This is a safety feature If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the purpose of the grounding type plug 10 Do not allow anything to rest on the power cord Do not locate this monitor where the cord will be abused by people walking on it 11 Follow all warnings and instructions marked on the monitor 12 For added protection for this monitor during a lightning storm or when it is left unattended and unused for long periods of time unplug it from the wall outlet This will prevent damage to the monitor and or the computer due to lightning and power line surges 13 Do not overload wall outlets and extension cords as this can result in fire or electric shock 14 Never push objects of any kind into this monitor 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 on the monitor 15 Do not attempt to service this monitor yourself as opening or removing covers may expose you to dangerous voltages or other hazards Refer all servicing to qualified service personnel 16 Unplug this monitor from the wall out
6. ection 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 cuase 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 Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio or TV technician for help CAUTION Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment CANADIAN NOTICE This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations AVIS CANADIEN Cet appareil num rique de la Class B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada The power cord is used as a main disconnect device Disconnect the power cord before servicing The outlet must be installed near
7. er friendly on screen display allows for easy and accurate adjustments of horizontal and vertical screen size and position geometry and screen color The monitor supports a safe working environment in strict compliance with the MPR II standard for low emissions TCO optional e The monitor complies with the VESA Display Data Channel DDC specification for Plug and Play compatibility Advanced microcircuitry makes setup and configuration fast and effortless e The monitor features Advanced Color Controls for fine tuning to meet your own personal tastes or application requirements Use the on screen controls to adjust the color temperature RGB gain value for the best possible screen color and intensity Press the menu button and activate the Self Diagnosis menu to determine whether your monitor is functioning normally not receiving a signal or is receiving a signal that is out of scanning range e Activate the higher refresh rates of the monitor to stabilize the screen and eliminate the annoying flicker that contributes to eye strain and headaches The borderless full screen display capability works under all graphic modes and provides a larger viewing area than conventional monitors giving you a better picture with more workspace SETUP CONNECTING THE D SUB SIGNAL CABLE 1 Turn off the computer and monitor 2 Connect the 15 pin D sub connector to the output port of the video card in your computer and moni
8. let and refer servicing to qualified service personnel under the following conditions a When the power cord or plug is damaged or frayed b If liquid has been spilled into the monitor c If the monitor has been exposed to rain or water d If the monitor does not operate normally by following the operating instructions Adjust only those controls that are covered by the operating instructions as improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore normal operation e If the monitor has been dropped or the cabinet has been damaged f When the monitor exhibits a distinct change in performance this indicates a need for service D 17 When replacement parts are 26 required be sure the service af technician has used replacement parts specified by the manufacturer that have the same characteristics as the original part Unauthorized substitutions may result in fire electric shock or other hazards 18 Upon completion of any service or repairs to this monitor ask the service technician to perform routine safety checks to determine that the monitor is safe to operate FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE STATEMENT 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 prot
9. ou choose the icon on the OSD window you can exit the OSD screen OSD Functions ICON CONTROL A LANGUAGE FUNCTION Select language for OSD 5 languages H CENTER amp ray V CENTER Adjust the position of the display horizontally left or right and vertically up or down IK COLOR TEMP Choose different preset color temperatures or set your own customized color parameters ICON CONTROL FUNCTION QU H MOIRE Adjust the horizontal picture moire cancellation V MOIRE Adjust the vertical picture moire cancellation FOCUS Adjust the focus image H CONVERGENCE Adjust the horizontal convergence image O RED GAIN Adjust the red gain 9 GREEN GAIN Adjust the green gain O BLUE GAIN Adjust the blue gain RED BIAS Adjust the red bias O GREEN BIAS Adjust the green bias V CONVERGENCE Adjust the vertical convergence image Adjust the display width amp height at the O BLUE BIAS Adjust the blue bias H SIZE amp V SIZE Adjust the width horizontal size and the height vertical size of the display ZOOM same time PINCUSHION Adjust the left and right margins for more convex or more concave margins TRAPEZOID Adjust the trapezoid of the screen by PIN BALANCE moving the lines inward or outward Adjust the side balance when the sides of the screen are bowed towards left or right Adjust the horizontal linearit
10. pplied frequency is under or over normal range H 30 107KHz V 50 160Hz E Normal range PC DISPLAY SETTINGS H 30 107 KHz CORRECT V 50 160 Hz 11 SPECIFICATIONS TROUBLESHOOTING CDT Size 21 inch Diagonal visible image area 20 inch Dot Pitch 0 25 mm Synchronization Horizontal 30 107 KHz Vertical 50 160 Hz Plug and Play DDC1 2B CI Power Saving EPA VESA DPMS Nutek Compliant Power Source 100 240 Vac 50 60Hz Free Voltage Power Consumption 135 W Symptom Check No picture Check if power switch and computer power switch are in the on position Check if the signal cable is correctly connected to the video card 4 Check if the pins of D subconnector are not bent Check if the computer is in the power saving mode Dimension W x H x D 494 x 500 x 518mm set with stand Weight unpacked 1bs Kg 61 7 28 0 Operating Temperature 10 40 C 50 104 F This specification can be changed without any prior notice to improve the quality of the product FACTORY PRESET TIMINGS POWER LED is not lit Check if power switch is in the on position 4 Check if the power cord is correctly connected Image is unstable Check if the signal cable is suitable to the video card Image is not centered too small or too large Adjust H amp V Size or H amp V Center to get the proper image
11. tor 3 Tighten the screws of connector D sub signal cable BO CONNECTING THE BNC SIGNAL CABLE 1 Turn off the computer and monitor 2 Connect the 5 BNC connectors from the signal cable to the monitor 3 Push in and turn the connectors clockwise until they are locked in place BNC signal cable Optional Accessory A MPT aa Il S 00 CONNECTING THE POWER CORD 1 Plug the power cord into the AC receptacle located at the back of the monitor 2 Plug the other end of the power cord into the AC outlet If your power cord is PC to Monitor type plug the other end of the power cord into the AC receptacle in the computer POWER MANAGEMENT SYSTEM If you use the monitor with a computer that complies with the power saving program you can set the monitor to go blank when the system has remained unused for a period of time To specify the period or to disable this feature set the system timeout field of the computer s system setup program or use special software for power saving See the computer user s manual for the details of using the system setup While the monitor is in power saving mode blank screen it consumes less power than when it is in its normal state The color of the power LED will indicate the state To restore the screen image press any key of your keybo
12. y PARALLELOGRAM Adjust the parallelogram when the screen is leaning left or right V LINEARITY IA E AL H LINEARITY E Adjust the vertical linearity HiQIU IDI AOD Balk PIN S CONTROL Adjust the pin S control when the sides of the screen are in a S shape ICON CONTROL FUNCTION PIN W CONTROLS ust the pin W control when the sides of the screen are in a W shape Adjust the rotation when the screen is _ ROTATION tilted left or right Degaussing keeps the monitor free from A DEGAUSS unwanted magnetism that can result in color impurity STATUS Display horizontal amp vertical frequency and polarity NN IL m an POWER SAVER TEST PATTERN YES VESA DPMS operation NO NO DPMS operation Display a RGB Color Bar to determine whether the screen color is expressed normally or not BNC D SUB Select a input signaling type between D sub and BNC connector X RECALL Reset the screen to the Factory Preset Display Settings 10 Self Diagnosis When the monitor doesn t display if you press any key Self Diagnosis screen is displayed Self Diagnosis function checks if the status of the monitor is No Signal or Out of range NO SIGNAL No Signal screen is displayed when the D Sub signal connector is not connected or the status of the monitor is on DPMS mode OUT OF RANGE Out of Range screen is displayed when the a
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