LED MonitorSupport - ViewSonic Mongolia

Why is there touch response randomly on my TD2220/TD2421 even nobody touches the screen?

These models are optical touch monitors which use two CMOS cameras (optical sensors) placed in the corners at the top of the screen as well as three reflectors (light strips). These cameras are used to look across the entire touch surface for touch events. When an object touches the screen, it blocks some of the light being received by the se...

Where to find serial number of the monitor?

The serial number can usually be found on the back or bottom of your product and is either 10 or 12 digits long. The serial number can also be found on the original box of the unit.

How to set power lock and menu lock?

On some monitors, there is a power button lock that locks the power and power button in the ON position. There is also a menu lock feature which can lock and unlock the OSD (On-Screen Display) Menu. Power Lock: To lock the Power Button press and hold both the [1] button and the down arrow button for 10 seconds. OSD Lock: ...

How to setup and configure dual monitors?

Connect your cables, then use system shortcuts to choose between "Extend" or "Duplicate" modes and arrange the display order. Step-by-Step Instructions: 1. Fast Mode Switching (Windows) Press the Win + P shortcut. Select [Extend] to use both screens for different content (Recommended). Select [Duplicate] to show the same image on b...

How to solve the problem with my monitor turning off automatically?

Automatic shutdowns are often caused by power-saving settings, inconsistent power supply, or signal loss. Please check the OSD timer settings first. Troubleshooting Steps: Check OSD Menu Settings (Most Common): Navigate to the [Setup Menu]. Locate [Auto Power Off] or [Sleep Timer] and ensure they are set to [Off]. Also, verify ...

Why Your Monitor Mount Joint Might Be Stiff

The rotation axis of the Arm Hinge may feel tight or exhibit restricted movement. This is by design, as the axis incorporates a degree of resistance to help prevent the monitor from dropping, tilting, or moving unintentionally after installation. Before a monitor is installed or when the monitor’s weight is not applied, the rotation...

Which cable do I need to support a 144Hz refresh rate?

To achieve 144Hz, you must use the correct version of DisplayPort (DP) or HDMI based on your resolution. DP is the recommended interface for high refresh rates. Cable Requirement Table: Target Resolution Recommended Cable (or higher) Note 1080p (FHD) DisplayPort / HDMI 1.3 Supported by most modern cables 1440p (2K) DisplayPort 1.2 /...

What should I do if vertical or horizontal lines appear on my monitor?

Identify whether it is a "Hardware Failure" or a "Signal Issue." The quickest way is to open the monitor's OSD menu to isolate the cause. Perform the OSD Test (Crucial): Press the monitor buttons to bring up the built-in menu. Lines appear OVER the menu: This indicates a hardware/panel failure. Proceed to step 5. Lines are NOT on t...

Why can’t my monitor automatically detect a source?

The "Auto Detect" feature is disabled by default on many models. You must manually enable it within the OSD menu to allow the monitor to switch between active ports automatically. Step-by-Step Instructions: Press the physical button to call up the OSD Main Menu. Navigate to the [Input Select] section. Locate [Auto Detect] at the bo...

Why does my TD2220 randomly receive touch signal and respond accordingly while exposed to sunlight?

TD2220 is an optical touch monitor which uses two CMOS cameras (optical sensors) placed in the corners at the top of the screen as well as three reflectors (light strips). These cameras are used to look across the entire touch surface for touch events. When an object touches the screen, it blocks some of the light being received by the sensor...