Acer DM431K User Manual
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Acer LCD Monitor
User's Guide

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Table of Contents
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Summary of Contents for Acer DM431K

  • Page 1 Acer LCD Monitor User's Guide...
  • Page 2 Serial number: ___________________________________ Date of purchase: _________________________________ Place of purchase: ________________________________ Acer and the Acer logo are registered trademarks of Acer Incorporated. Other companies' product names or trademarks are used herein for identification purposes only and belong to their respective companies.
  • Page 3: Special Notes On Lcd Monitors

    Special notes on LCD monitors The following are normal with the 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. •...
  • Page 4: Safe Listening

    Safe listening To protect your hearing, follow these instructions. • Gradually increase the volume until you can hear it clearly and comfortably and without distortion. • After setting the volume level, do not increase it after your ears have adjusted. •...
  • Page 5: Product Servicing

    Note: The grounding pin also provides good protection from unexpected noise produced by other nearby electrical devices that may interfere with the performance of this product. • Use the product only with the supplied power supply cord set. If you need to replace the power cord set, make sure that the new power cord meets the following requirements: detachable type, UL listed/CSA certified, type SPT-2, rated 7 A 125 V minimum, VDE approved or its equivalent, 4.5meters (15 feet) maximum length.
  • Page 6: It Equipment Recycling Information

    IT Equipment Recycling Information Acer is strongly committed to environmental protection and views recycling, in the form of salvaging and disposal of used equipment, as one of the company's top priorities in minimizing the burden placed on the environment.We at Acer are very conscious of the environmental effects of our business and strive to identify and provide the best working procedures to reduce the environmental impact of our products.For more information and help when recycling, please go to this website:...
  • Page 7: Tips And Information For Comfortable Use

    Tips and information for comfortable use Computer users may complain of eyestrain and headaches after prolonged use. Users are also at risk of physical injury after long hours of working in front of a computer. Long work periods, bad posture, poor work habits, stress, inadequate working conditions, personal health and other factors greatly increase the risk of physical injury.
  • Page 8: Developing Good Work Habits

    • using a task light • changing the display's viewing angle • using a glare-reduction filter • using a display visor, such as a piece of cardboard extended from the display's top front edge • Avoid adjusting your display to an awkward viewing angle. •...
  • Page 9: Declaration Of Conformity

    DM431K xxxxxx; (“x” = 0~9, a ~ z, A ~ Z, or blank) We, Acer Incorporated, hereby declare under our sole responsibility that the product described above is in conformity with the relevant Union harmonization legislations as below Directive and following...
  • Page 10: Federal Communications Commission Declaration Of Conformity

    Acer America Corporation 333 West San Carlos St., Suite 1500 San Jose, CA 95110, U. S. A. Tel : 254-298-4000 Fax : 254-298-4147 www.acer.com Federal Communications Commission Declaration of Conformity This device complies with Part 15 of the FCC Rules. Operation is subject to the following...
  • Page 11 Special notes on LCD monitors Information for your safety and comfort Safety instructions Cleaning your monitor Connecting/disconnecting the device Accessibility Safe listening Warnings Using electrical power Product servicing Additional safety information IT equipment recycling information Disposal instructions LCD pixel statement Tips and information for comfortable use CE Declaration of Conformity Federal Communications Commission Declaration of...
  • Page 12 Please check that the following items are present when you unpack the box, and save the packing materials in case you need to ship or transport the monitor in the future. LCD monitor Quick start guide LCD monitor DM1 series-DM431K USER GUIDE AC power cord DP cable (Option)
  • Page 13: Attaching/Removing The Base

    Attaching/removing the base Installation: By aligning the front-end of the bracket with the corresponding slot on the back of the display, and fix the stand onto the display by screwing the four screws clockwise. Remove: Reverse the steps to remove the base.
  • Page 14: Connecting The Power Cord

    Connecting the power cord • Check first to make sure that the power cord you use is the correct type required for your area. • The monitor has a universal power supply that allows operation in either 100/120 V AC or 220/240 V AC voltage area.
  • Page 15: Connector Pin Assignment

    Connector pin assignment 19-pin color display signal cable PIN No. Description PIN No. Description TMDS data 2+ TMDS clock shield TMDS data 2 shield TMDS clock- TMDS data 2- TMDS data 1+ DDC-serial data TMDS data 1 shield TMDS data 1- TMDS data 0+ DDC/CEC Ground TMDS data 0 shield...
  • Page 16 20-pin color display signal cable PIN No. Description PIN No. Description Lane0(p) Lane3(n) Lane0(n) Config1 Lane1(p) Config2 AUX_CH (n) Lane1(n) Lane2(p) AUX_CH (p) Hot Plug Detect Lane3(n) DP Power_Return Lane3(p) DP Power...
  • Page 17 15-pin color display signal cable PIN No. Description PIN No. Description Green Logic ground Blue Monitor ground Monitor ground DDC-serial data DDC-return H-sync R-ground V-sync G-ground DDC-serial clock B-ground...
  • Page 18: Standard Timing Table

    Standard timing table Mode Resolution 640×480 640×480 640×480 640×480 66.66 VESA 720×400 SVGA 800×600 SVGA 800×600 SVGA 800×600 SVGA 800×600 832×624 74.55 1024×768 1024×768 1024×768 1152×870 VESA 1152×864 VESA 1280×960 SXGA 1280×1024 SXGA 1280×1024 VESA 1280×720 WXGA+ 1440×900 WSXGA+ 1680×1050 1920×1080 2560×1440 3840×2160...
  • Page 19: Installation

    Installation To install the monitor on your host system, please follow the steps below: Steps 1. Connect the video cable a. Make sure both the monitor and computer are switched off. b. Connect the VGA video cable to the computer. c.
  • Page 20: User Controls

    USER CONTROLS Power Switch / Power LED: 1.Press/Hold 3 seconds to Power Off. Lights up to indicate the power is turned ON. Blue indicates power on. Amber indicates standby/ power saving mode. Using the Shortcut Menu a. Press to view the OSD. OSD functions/ b.
  • Page 21: How To Adjust A Setting

    Graphic Movie Move Operation instructions Acer Mode Management Menu Step 1: Press “ “ Key to open the Mode Management Menu and access the scenario modes Step 2: Press “  “ or “  ” to select the mode Step 3: Press “OK “...
  • Page 22: Adjusting The Osd Settings

    Adjusting the OSD settings Note: The following content is for general reference only. Actual product specifications may vary. The OSD can be used for adjusting the settings of your LCD Monitor. Press the key to open the OSD. You can use the OSD to adjust the picture quality, OSD setting and general settings.
  • Page 23 TÜV Rheinland's “Low Blue Light Content” standard. 9. ACM: Turn ACM on or off. Note: Set to "On", will be based on the current screen to dynamic contrast adjustment. 10. Super Sharpness: Turn the Super Sharpness On or Off. Super Sharpness technology can simulate high-resolution images by boosting the pixel density of the original source to make images sharper and clearer.
  • Page 24 Adjusting the Audio setting Mode - Standard Picture Volume Color Mute Audio Performance System Information Move Enter Exit 1. Press the key to bring up the OSD. 2. Using the keys, select Audio from the OSD. Then navigate to the feature you wish to adjust.
  • Page 25 Adjusting the OSD setting Mode - Standard English Picture Language Color OSD Timeout Audio Transparency Performance OSD Lock System Information Move Enter Exit 1. Press the key to bring up the OSD. 2. Using the keys, select OSD from the OSD menu. Then navigate to the feature you wish to adjust.
  • Page 26 System setting Mode - Standard HDMI 1 Input Picture Color Auto Source DP12 DP Format Audio Full Wide Mode Performance PIP/PBP Hot Key Assignment System DDC/CI Information Normal HDMI Black Level Quick Start Mode USB upgrade Enter Move Enter Exit 1.
  • Page 27: Troubleshooting

    Troubleshooting Before sending your LCD monitor for servicing, please check the troubleshooting list below to see if you can self-diagnose the problem VGA mode Problem LED status Remedy No picture visible Blue Using the OSD, adjust brightness and contrast to maximum or reset to their default settings.
  • Page 28 Wait for a few seconds after adjusting the size of the image before changing or disconnecting the signal cable or switching off the monitor. Note: Acer monitor is purposed for video and visual display of information obtained from electronic devices.

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