Prechen HD-123-2S

Prechen Portable Touchscreen Secondary Monitor User Manual

Model: HD-123-2S

Brand: Prechen

1. Product Overview

The Prechen Portable Touchscreen Secondary Monitor is a versatile 12.3-inch IPS LCD display designed to extend your workspace. With a resolution of 1920 x 720, it offers clear visuals and touch capabilities for enhanced interaction. Its compact and lightweight design makes it suitable for travel and on-the-go use, connecting seamlessly via Mini HDMI or USB-C. This monitor is ideal for various applications, including system performance monitoring with software like Aida64.

Prechen Portable Touchscreen Monitor displaying system performance data

Figure 1.1: The Prechen portable monitor in use, displaying system performance metrics such as CPU temperature, GPU temperature, and RAM data. A hand is shown interacting with the touchscreen interface.

2. Key Features

Person using the Prechen monitor with a stylus, demonstrating 10-point multi-touch capability

Figure 2.1: The monitor supports 10-point multi-touch, allowing for precise and intuitive interaction, as demonstrated by a user drawing on the screen with a stylus.

Prechen monitor displaying music interface with a family relaxing outdoors, highlighting 3D surround sound

Figure 2.2: The monitor features 3D vivid surround sound, enhancing the audio experience for various content, including music playback.

3. Setup and Connections

3.1 Package Contents

Please ensure all components are present before proceeding with setup:

3.2 Connecting the Monitor

The monitor supports two primary connection methods: USB-C and HDMI.

3.2.1 USB-C Connection (Full Featured USB-C)

If your device (laptop, smartphone, etc.) has a full-featured USB-C port that supports video output (DisplayPort Alternate Mode), touch function, and power delivery, you can connect the monitor using a single USB-C to USB-C cable.

  1. Connect one end of the USB-C to USB-C cable to the USB-C port on the Prechen monitor.
  2. Connect the other end of the USB-C to USB-C cable to the full-featured USB-C port on your device.
  3. The monitor should automatically detect the signal and power on.

3.2.2 HDMI Connection

If your device does not have a full-featured USB-C port, or if you prefer to use HDMI, you will need both an HDMI cable for video and a USB-C cable for power and touch functionality.

  1. Connect one end of the Mini HDMI to HDMI cable to the Mini HDMI port on the Prechen monitor.
  2. Connect the other end of the HDMI cable to the HDMI port on your device.
  3. Connect one end of the USB-A to USB-C cable to a USB-A port on your device (or a power adapter).
  4. Connect the USB-C end of this cable to one of the USB-C ports on the Prechen monitor for power and touch signal.
  5. The monitor should power on and display the video signal.

Important Note: When connecting devices with higher power consumption (such as gaming devices), the monitor may flicker or not turn on due to insufficient power supply. In such cases, please connect the original power adapter to the monitor via the USB-C port to ensure sufficient power before connecting the monitor to these devices.

Diagram showing USB-C and HDMI connection methods for the Prechen monitor

Figure 3.1: Illustration of the two primary connection methods: a single USB-C cable for devices with full-featured USB-C ports, and a combination of HDMI and USB-C (for power/touch) for other devices.

3.3 Port and Button Layout

Close-up view of the Prechen monitor's ports and control buttons

Figure 3.2: Detailed view of the monitor's side, showing the Mini HDMI port, two USB-C ports (one full-featured), a 3.5mm headphone jack, power button, menu button, and shortcut keys for brightness and return functions.

3.4 Mounting Options

The Prechen monitor features a durable metal casing and is designed for versatile placement. It includes standard mounting points on the rear for compatibility with VESA mounts (75x75mm), allowing for desk mount or wall mount configurations.

Back view of the Prechen monitor showing VESA mount points (75x75mm)

Figure 3.3: The rear of the monitor, highlighting the 75x75mm VESA mounting holes for compatible stands or arms.

4. Operating the Monitor

4.1 Power On/Off

4.2 Using the Touchscreen

The monitor features a responsive 10-point multi-touch display. Ensure the USB-C connection for touch functionality is properly established (either via a full-featured USB-C cable or the USB-A to USB-C cable when using HDMI).

4.3 On-Screen Display (OSD) Menu

Press the Menu Button to access the OSD menu. Use the shortcut keys (Brightness +, Volume -, Return) to navigate and adjust settings.

4.4 Using with Aida64 and System Monitoring

This monitor is particularly well-suited for displaying system performance data from applications like Aida64. Connect the monitor to your computer as a secondary display. Configure Aida64 (or similar software) to output its sensor panel or monitoring dashboard to the Prechen monitor for real-time tracking of CPU, GPU, RAM, and other system metrics.

5. Maintenance and Care

6. Troubleshooting

ProblemPossible CauseSolution
No display/No power
  • Insufficient power supply.
  • Incorrect cable connection.
  • Monitor is off or in standby.
  • Ensure the monitor is connected to a sufficient power source (e.g., original power adapter for high-power devices).
  • Verify all cables (USB-C, HDMI) are securely connected to the correct ports.
  • Press the Power Button to turn on or wake the monitor.
No touch functionality
  • USB-C cable not connected or not full-featured.
  • Driver issue on the connected device.
  • Ensure you are using a full-featured USB-C cable or that the USB-A to USB-C cable is connected for touch signal when using HDMI.
  • Check your device's operating system for touch screen drivers or settings.
Flickering screen
  • Insufficient power supply.
  • Faulty cable.
  • Connect the monitor to its dedicated power adapter, especially when connected to high-power devices.
  • Try a different USB-C or HDMI cable.
No audio
  • Volume too low or muted.
  • Incorrect audio output selected on device.
  • Increase volume using the monitor's shortcut key or OSD menu.
  • Check your computer's sound settings to ensure the Prechen monitor is selected as the audio output device.

7. Specifications

FeatureDetail
BrandPrechen
ModelHD-123-2S
Screen Size12.3 inches
Display TechnologyIPS LCD
Resolution1920 x 720
Aspect Ratio8:3 (also listed as 4:3, but 1920x720 is 8:3)
Response Time5 Milliseconds
Refresh Rate60 Hz
Viewing Angle178 Degrees
Hardware InterfaceMini HDMI, USB-C
Special FeaturesPortable, Touchscreen (10-point multi-touch)
Mounting TypeDesk Mount (VESA 75x75mm compatible)
Product Dimensions1.98 x 30.99 x 11.99 cm
Item Weight907.18 g (approx. 1.1 IB as per image)

8. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact Prechen customer service through their official website or the retailer where the product was purchased. Please have your model number (HD-123-2S) and purchase details ready when contacting support.

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