TD2423D
Introduction
Package Contents
- Monitor
- Audio cable
- Power cord
- USB cable
- Video cable
- Quick start guide
Product Overview
Front View
- Magnetic Point
- Control Panel Keys
- Power Button
- Power LED
Rear View
- Security Slot
- I/O Ports
- Adjustable Stand
I/O Ports
| # | Description |
|---|---|
| 1 | USB Downstream |
| 2 | USB Upstream |
| 3 | AC In |
| 4 | HDMI |
| 5 | DisplayPort |
| 6 | VGA |
| 7 | Audio In |
| 8 | Audio Out |
Initial Setup
Installing the Stand
1
2
Removing the Stand
1
2
Mounting the Monitor
After removing the stand, the monitor can be mounted using an optional mounting kit.
| Maximum Loading | Hole Pattern (W × H) | Screw Specification | Screw Quantity |
|---|---|---|---|
| 14 kg | 100 × 100 mm | M4 × 10 mm | 4 |
- Attach the mounting bracket to the VESA mounting holes at the rear of the monitor, securing it with screws.
- Follow the mounting kit instructions to mount the monitor.
Using the Security Slot
To prevent theft and minimize damage, use a security slot locking device to secure the monitor to a fixed object.
Additionally, fastening the monitor to a wall or fixed object using a security cable can help support the weight of the monitor in order to prevent the monitor from falling over.
Making Connections
Connecting to Power
Connecting to Video
Audio Connection
USB Connection
The monitor supports two types of USB ports, upstream and downstream. When making connections, observe the following guidelines.
| # | USB Type | Connection Type | Description |
|---|---|---|---|
| 1 | Upstream | Type B | Transfers data between the computer and the USB devices connected to the monitor. |
| 2 | Downstream | Type A | For peripheral device(s) (e.g., storage device, keyboard, mouse, etc.). Supports 5V/900mA (4.5W) output. |
Using the USB Ports
- To use the downstream USB ports, connect one end of a USB cable to the upstream port of the monitor. Plug the other end of the cable into a downstream port of your computer.
- Connect your peripheral device(s) to a downstream port of the monitor.
Touch Control
- The touch function may take approximately five seconds to resume after the USB cable is disconnected or after the computer resumes from sleep mode.
- The touchscreen supports up to 10 simultaneous finger touches.
Connecting to External Devices with Touch Control
HDMI
DisplayPort
VGA
Touch Accuracy
| Active Area | Touch Accuracy |
|---|---|
| Center (Inside the box) |
Within 2 mm. |
| Edges (Outside the box) |
8 mm or more. |
Stylus (Optional)
The monitor responds to both stylus and finger touches, but the stylus has a smaller, rounded point and is more accurate than a finger. For the best results, use a stylus with the following tip thickness:
- Center of the screen: At least 3 mm thick.
- Edges of the screen: At least 8 mm thick.
Using the Monitor
Adjusting the Viewing Angle
Tilt Angle Adjustment
Tilt the monitor backwards to the desired viewing angle (20° to 40°).
Turning the Monitor On/Off
- Make sure the monitor is connected to power.
- Press the Power button to turn on the monitor.
- To turn the monitor off, press the Power button again.
Using the Control Panel Keys
Use the Control Panel Keys to use Hot Keys, navigate the On-Screen Display Menu, and change settings.
Menu Operation
On-Screen Display Menu
Menu Options
| Menu Option | Description | |
|---|---|---|
| Auto Image Adjust | Adjusts the onscreen image’s position automatically. | |
| Contrast/Brightness | Contrast | Adjusts the difference between the brightest and darkest parts of the image. |
| Brightness | Adjusts how bright or how dark the image will be. | |
| Input Select | Sets the input source. | |
| Audio Adjust | Adjusts the volume level. | |
| Color Adjust | Sets a preset color option. | |
| Information | Shows the monitor’s current settings and status. | |
| Manual Image Adjust | Adjusts the onscreen image quality. | |
| Setup Menu | Adjusts onscreen menu and general settings. | |
| Memory Recall | Returns all settings to their default values. | |
Appendix
Specifications
| Category | Specification | Value | |
|---|---|---|---|
| Display | Type | a-si TFT Active Matrix 1920 × 1080 LCD; 0.2745 (H) mm × 0.2745 (V) mm pixel pitch | |
| Display Size | 60.46 cm / 23.8 in. (viewable) | ||
| Color Filter | RGB Vertical Stripe | ||
| Glass Surface | Anti-Glare (Haze 25%), Hard Coating (3H) | ||
| Input Signal | Frequency | DisplayPort | fh: 24–110 kHz; fv: 50–100 Hz |
| HDMI | fh: 24–110 kHz; fv: 50–100 Hz |
||
| D-SUB | fh: 24–82 kHz; fv: 50–75 Hz |
||
| Version | DisplayPort | 1.2 | |
| HDMI | 1.4 | ||
| Compatibility | PC | up to 1920 × 1080 | |
| Macintosh | up to 1920 × 1080 | ||
| Resolution and Timings[1] | Preset | 1920 × 1080 @ 60 Hz | |
| Supported |
|
||
| Power[3] | Input Voltage | AC 100–240V, 50/60 Hz (auto switch) | |
| Audio | Internal Speaker | 2 × 2W | |
| Display Area | Active Size (H × V) | 527.04 × 296.46 mm 20.75 × 11.69 in. |
|
| Operating Conditions | Altitude | 5 km (16,404 ft) | |
| Relative Humidity | 20% to 90% (non-condensing) | ||
| Temperature | 0° C to 40° C 32° F to 104° F |
||
| Storage Conditions | Altitude | 12.1 km (40,000 ft) | |
| Relative Humidity | 5% to 90% (non-condensing) | ||
| Temperature | -20° C to 60° C -4° F to 140° F |
||
| Dimensions (with stand) | Physical (W × H × D) | 571 × 348 × 101 mm 22.5 × 13.7 × 4 in. |
|
| Weight (with stand) | Physical | 4.9 kg (10.76 lb) | |
| Dimensions (without stand) | Physical (W × H × D) | 571 × 348 × 61 mm 22.5 × 13.7 × 2.4 in. |
|
| Weight (without stand) | Physical | 4.7 kg (10.3 lb) | |
| Wall Mount | Dimensions | 100 × 100 mm | |
| Power Consumption | On[4] | 14W (Typical) |
|
| Standby | ≤ 0.5 W (Maximum) | ||
| Off | ≤ 0.3 W (Maximum) | ||
- ↑ Do not set the graphics card in your computer to exceed these timing modes; doing so may result in permanent damage to the display.
- ↑ 2.0 2.1 For HDMI and DisplayPort only.
- ↑ Please use the power adapter/power cord from ViewSonic® or an authorized source only.
- ↑ The test condition follows EEI standards.
 |
The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. |
On-Screen Display Menu Tree
Auto Image Adjust
| Menu Option |
|---|
| — |
Contrast/Brightness
| Sub-menu | Menu Option |
|---|---|
| Contrast | 0–100/1 |
| Brightness | 0–100/1 |
Input Select
| Menu Option |
|---|
| D-SUB · DisplayPort · HDMI |
Audio Adjust
| Sub-menu | Menu Option |
|---|---|
| Volume | 0–100/1 |
| Mute | On · Off |
| Audio Input | HDMI · Audio In |
Color Adjust
| Sub-menu | Menu Option | |
|---|---|---|
| sRGB | — | |
| Bluish | — | |
| Cool | — | |
| Native | — | |
| Warm | — | |
| User Color | Red | 0–100/1 |
| Green | 0–100/1 | |
| Blue | 0–100/1 | |
Information
| Menu Option |
|---|
| — |
Manual Image Adjust
| Sub-menu | Menu Option | |
|---|---|---|
| H/V Position | Horizontal Position | 0–100/1 |
| Vertical Position | 0–100/1 | |
| Horizontal Size | 0–100/1 | |
| Fine Tune | 0–100/1 | |
| Sharpness | 0–100/25 | |
| Dynamic Contrast | On · Off | |
| Response Time | Standard · Advanced · Ultra Fast | |
| Aspect Ratio | 4:3 · Full Screen | |
| Overscan | On · Off | |
| ECO Mode | Standard · Optimize · Conserve | |
| Blue Light Filter | 0–100/1 | |
Setup Menu
| Sub-menu | Menu Option | |
|---|---|---|
| Language Select | English · Français · Deutsch · Nederlands · Español · Italiano · Svenska · Русский · Türkçe · Polski · Češka · Română · ไทย · Tiếng Việt · Bahasa Indonesia · 日本語 · 繁體中文 · 简体中文 | |
| Resolution Notice | On · Off | |
| OSD Position | H. Position | 0–100/1 |
| V. Position | 0–100/1 | |
| OSD Pivot | 0° · +90° · −90° | |
| OSD Timeout | 5 · 15 · 30 · 60 | |
| OSD Background | On · Off | |
| Auto Power Off | On · Off | |
| Sleep | 30 minutes · 45 minutes · 60 minutes · 120 minutes · Off | |
| Power Indicator | On · Off | |
| Boot Up Screen | On · Off | |
| Touch Screen | Single Point Touch | On · Off |
| Touch Disable | On · Off | |
Memory Recall
| Menu Option |
|---|
| — |
Hot Keys
When the On-Screen Display Menu is off, you can access special functions with the Control Panel Keys.
| Function | Key | Description |
|---|---|---|
| Lock or unlock the On-Screen Display Menu | 1 + Up | Press and hold the keys. When the menu appears, continue holding the keys for 10 seconds. |
| Lock or unlock the Power button | 1 + Down | Press and hold the keys. When the menu appears, continue holding the keys for 10 seconds. |
| Turn on or off the Boot Up Screen | 2 + Up | Press the keys. |
| Switch between DDC/CI and DDC/2B | 2 + Down | Press the keys to switch between DDC/CI and DDC/2B. |
| Open the Contrast menu | Up | Press the key. |
| Open the Color Adjust menu | Down | Press the key. |
| Set the input source | 2 | Press the key. |
Regulatory and Service Information
Compliance Information
This section addresses all connected requirements and statements regarding regulations. Confirmed corresponding applications shall refer to nameplate labels and relevant markings on the unit.
FCC Compliance Statement
This device complies with part 15 of FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 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:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Warning: You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment.
Industry Canada Statement
CAN ICES (B) / NMB (B)
CE Conformity for European Countries
The device complies with the EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU.
The following information is only for EU-member states:
The mark shown to the right is in compliance with the Waste Electrical and Electronic Equipment Directive 2012/19/EU (WEEE). The mark indicates the requirement NOT to dispose of the equipment as unsorted municipal waste, but use the return and collection systems according to local law.
Declaration of RoHS2 Compliance
This product has been designed and manufactured in compliance with Directive 2011/65/EU of the European Parliament and the Council on restriction of the use of certain hazardous substances in electrical and electronic equipment (RoHS2 Directive) and is deemed to comply with the maximum concentration values issued by the European Technical Adaptation Committee (TAC) as shown below.
| Substance | Proposed Maximum Concentration | Actual Concentration |
|---|---|---|
| Lead (Pb) | 0.1% | < 0.1% |
| Mercury (Hg) | 0.1% | < 0.1% |
| Cadmium (Cd) | 0.01% | < 0.01% |
| Hexavalent Chromium (Cr6+) | 0.1% | < 0.1% |
| Polybrominated biphenyls (PBB) | 0.1% | < 0.1% |
| Polybrominated diphenyl ethers (PBDE) | 0.1% | < 0.1% |
| Bis (2-ethylhexyl) phthalate (DEHP) | 0.1% | < 0.1% |
| Butyl benzyl phthalate (BBP) | 0.1% | < 0.1% |
| Dibutyl phthalate (DBP) | 0.1% | < 0.1% |
| Diisobutyl phthalate (DIBP) | 0.1% | < 0.1% |
Certain components of products as stated above are exempted under the Annex III of the RoHS2 Directives as noted below. Examples of exempted components are:
- Copper alloy containing up to 4% lead by weight.
- Lead in high melting temperature type solders (i.e. lead-based alloys containing 85% by weight or more lead).
- Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound.
- Lead in dielectric ceramic in capacitors for a rated voltage of 125 V AC or 250 V DC or higher.
Indian Restriction of Hazardous Substances
Restriction on Hazardous Substances statement (India). This product complies with the “India E-waste Rule 2011” and prohibits use of lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers in concentrations exceeding 0.1 weight % and 0.01 weight % for cadmium, except for the exemptions set in Schedule 2 of the Rule.
Product Disposal at End of Product Life
ViewSonic® respects the environment and is committed to working and living green. Thank you for being part of Smarter, Greener Computing. Please visit the ViewSonic® website to learn more.
- USA & Canada: Go Green with ViewSonic
- Europe: Environmental, Social & Governance — Recycle
- Taiwan: Taiwan Recycling Information
For EU users, please contact us for any safety/accident issue experienced with this product:
Flevolaan 38, 1382JZ, Weesp,
the Netherlands
Copyright Information
Copyright © 2026 ViewSonic® Corporation. All rights reserved.
Macintosh and Power Macintosh are registered trademarks of Apple Inc.
Microsoft, Windows, and the Windows logo are registered trademarks of Microsoft Corporation in the United States and other countries.
ViewSonic® and the three birds logo are registered trademarks of ViewSonic® Corporation.
VESA is a registered trademark of the Video Electronics Standards Association. DPMS, DisplayPort, and DDC are trademarks of VESA.
ENERGY STAR® is a registered trademark of the U.S. Environmental Protection Agency (EPA).
As an ENERGY STAR® partner, ViewSonic® Corporation has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.
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Disclaimer: ViewSonic® Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from furnishing this material, or the performance or use of this product.
In the interest of continuing product improvement, ViewSonic® Corporation reserves the right to change product specifications without notice. Information in this document may change without notice.
No part of this document may be copied, reproduced, or transmitted by any means, for any purpose without prior written permission from ViewSonic® Corporation.
This Copyright Information may be translated into multiple languages. All translated versions are provided for reference only. In the event of any discrepancy or inconsistency among different language versions, the English version shall prevail.
Version
TD2423D_UG_ENG_1b_20260804
See Also
Customer Service
Limited Warranty
Safety Precautions
Troubleshooting
Maintenance