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LED Monitor
User's Manual
V1.0.0

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Questions and answers

Mark Lawrence Lawrence
February 7, 2025

adjust volume on the screen through the buttons as have lost sound

1 comments:
Mr. Anderson
February 10, 2025

You can adjust the volume on the Dahua Technology LM27-B201S screen using the MISC menu. Press the ▲▼ buttons to adjust the volume value when the item is selected, then press the menu button to exit. Additionally, check whether the audio signal line is properly connected.

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Summary of Contents for Dahua Technology LM27-B201S

  • Page 1 LED Monitor User’s Manual V1.0.0...
  • Page 2 Foreword General This manual introduces the installation, functions and operations of the LED monitor (hereinafter referred to as "the monitor"). Read carefully before using the device, and keep the manual safe for future reference. Safety Instructions The following signal words might appear in the manual. Signal Words Meaning Indicates a high potential hazard which, if not avoided, will result in...
  • Page 3 compliance with the manual. The manual will be updated according to the latest laws and regulations of related jurisdictions.  For detailed information, see the paper user’s manual, use our CD-ROM, scan the QR code or visit our official website. The manual is for reference only. Slight differences might be found between the electronic version and the paper version.
  • Page 4: Important Safeguards And Warnings

    Important Safeguards and Warnings Safety Warning To use the product safely, correctly, and to keep users from suffering injury or property loss, please observe the following safety precautions when installing, using or maintaining. Please read this handbook before operating the product and keep the handbook for future reference. Notice and observe all the warnings and illustrations.
  • Page 5  Do not install the product near any heat source such as a radiator, heat register or stove. Do not use uncertified connecting lines, which might cause equipment failure.   Do not press, stretch or heat the connecting lines, which might cause damage to it. Please firmly grasp the plug of the connecting line when inserting and removing.
  • Page 6: Table Of Contents

    Table of Contents Foreword ............................I Important Safeguards and Warnings ....................III 1 Introduction ..........................1 Appearance ..............................1 Features ............................... 1 2 Ports ............................. 1 3 Main Menu ............................. 2 PC PICTURE Menu ............................3 IMAGE Menu ..............................3 COLOR TEMP Menu .............................
  • Page 7: Introduction

    Introduction Appearance The figures in the manual are for reference only, and might differ from the actual product. Appearance Features Low energy consumption, long service life.  High contrast ratio and high luminance.  Automatically eliminates ghosting.  Rapid response times, no trailing image. ...
  • Page 8: Ports

    Ports Please connect the monitor to external devices according to the following I/O interface list. Choose the corresponding incoming signal channel. Please turn off the power of the external device and the product when connecting. Port A Port B Port C Table 2-1 Ports Description Name Description...
  • Page 9: Main Menu

    Main Menu To activate, press the menu button on the bottom left of the bezel. The sub-menus of the main menu are: Picture menu, Image Menu, Color Temp menu, OSD Setting menu, Reset menu and Misc menu. Press the menu button to select the sub-menu item. The selected menu item will show a bordered wireframe.
  • Page 10: Pc Picture Menu

    PC PICTURE Menu PICTURE menu can set the brightness, contrast, black equalizer, low blue, ECO and DCR function. Press ▲▼ button to adjust value when item is selected, press menu button to exit. PICTURE IMAGE Menu IMAGE menu can set H.position, V.position, clock, phase, aspect and free sync function. Press ▲▼...
  • Page 11: Color Temp Menu

    COLOR TEMP Menu COLOR TEMP menu can set color temp and HDR function. Press ▲▼ button to adjust value when item is selected, press menu button to exit. COLOR TEMP OSD SETTING Menu OSD SETTING menu can set language, OSD H/V. POS, OSD timer, transparency and OSD LOGO function. Press ▲▼...
  • Page 12: Reset Menu

    RESET Menu RESET menu can set image auto adjust, color auto adjust, reset, auto powerdown, timecount and OD function. Press ▲▼ button to adjust value when item is selected, press menu button to exit. RESET MISC. Menu MISC menu can set signal source, mute and volume function. Press ▲▼...
  • Page 13: Channel Selection

    MISC. Channel Selection “Source” menu can select channel (input). The options include VGA, HDMI. Press ▲▼ button to adjust value when item is selected, press menu button to confirm.
  • Page 14: Faq

    How to Clean Product Please wipe dust and other particles off with a clean soft towel. If it is still not clean, please use a neutral cleaner along with the clean soft towel. Wipe dry after cleaning it. Rubbing or scrapping the housing with fingernails or other hard objects might scratch the housing.
  • Page 15 Table 4-1 Solutions Solution Switch to another channel or input. Check whether the audio signal line is connected. Check whether the video signal line is connected. Interference from by other electric appliance may be present. Adjust fine tuning setting. Adjust luminance setting. Adjust contrast ratio setting.
  • Page 16: Cybersecurity Recommendations

    Cybersecurity Recommendations Mandatory actions to be taken for basic device network security: Use Strong Passwords Please refer to the following suggestions to set passwords: The length should not be less than 8 characters.   Include at least two types of characters; character types include upper and lower case letters, numbers and symbols.
  • Page 17 the risk of ARP spoofing. Assign Accounts and Privileges Reasonably According to business and management requirements, reasonably add users and assign a minimum set of permissions to them. Disable Unnecessary Services and Choose Secure Modes If not needed, it is recommended to turn off some services such as SNMP, SMTP, UPnP, etc., to reduce risks.

This manual is also suitable for:

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