VSDISPLAY 12.3 inch 1280x480 LCD Screen LQ123K1LG03 with VGA 2AV Controller Board Instruction Manual

1. Introduction

This manual provides detailed instructions for the setup, operation, and maintenance of your VSDISPLAY 12.3 inch 1280x480 LCD Screen with VGA 2AV Controller Board (Model: LQ123K1LG03). Please read this manual thoroughly before use to ensure proper functionality and longevity of the product.

2. Product Overview

The VSDISPLAY LQ123K1LG03 is a 12.3-inch LCD screen with a 1280x480 resolution, designed for various applications including industrial machines, DIY displays, and car monitor gauge clusters. It features a VGA 2AV controller board for versatile connectivity.

Figure 1: Assembled VSDISPLAY 12.3 inch LCD Screen with Controller Board.

Key features include:

• 12.3" LQ123K1LG03 LCD Screen with 1280x480 resolution.
• Brightness: 330 cd/m² (Typ.), Contrast Ratio: 400:1 (Typ.) (TM).
• VGA 2AV LCD Board compatible with LVDS Interface LCD Screens.
• Designed for industrial applications, DIY projects, and automotive displays.

3. Package Contents

Verify that all items listed below are included in your package:

• 1 × LCD Controller Board VS-TY2662-V1
• 1 × 12.3 inch LQ123K1LG03 1280x480 LCD Screen
• 1 × Converter Board
• 1 × LVDS Cable
• 1 × Keyboard With Cable

Figure 2: All components included in the VSDISPLAY LQ123K1LG03 package.

Note: An input power adapter (12Vdc, more than 2A) is required and is NOT included in the packing list.

4. Setup Instructions

Follow these steps to assemble and connect your LCD screen and controller board:

1. Connect the Converter Board: Attach the converter board to the main LCD Controller Board (VS-TY2662-V1).
2. Connect the LVDS Cable: Carefully connect the LVDS cable to the 12.3 inch LQ123K1LG03 LCD Screen and the main Controller Board. Ensure the connection is secure.
3. Connect the Keyboard: Attach the keyboard with its cable to the designated port on the Controller Board. This keyboard is used for navigating the OSD menu.
4. Connect Power: Connect a 12Vdc power adapter (minimum 2A, not included) to the DC IN port on the Controller Board.
5. Connect Video Input: Connect your video source (VGA, AV1, or AV2) to the corresponding port on the Controller Board.

Figure 3: Close-up of the Controller Board showing various input ports and connections.

Figure 4: Example of the Controller Board with essential cables connected.

Important Safety Note: The board must not touch any conductive substance when powered on to prevent damage.

5. Operating Instructions

Once assembled and powered, the LCD screen will enter standby mode if no signal is detected. The standby power consumption is less than 1W.

• Power On/Off: Use the power button on the connected keyboard to turn the display on or off.
• OSD Menu: Use the buttons on the keyboard to navigate the On-Screen Display (OSD) menu. This menu allows adjustment of settings such as Brightness, Contrast, Auto-adjustment, Language, and more.
• Video Input Selection: The board supports VGA, AV1, and AV2 video inputs. For reversing camera applications, the board supports automatically switching to AV2 when the ACC connector receives 12V.
• Language Settings: The OSD menu supports multiple languages including English, French, German, Spanish, and Italian.

6. Maintenance

To ensure optimal performance and longevity of your VSDISPLAY LCD screen, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the screen and controller board. For stubborn marks, lightly dampen the cloth with water. Avoid harsh chemicals or abrasive materials.
• Storage: When not in use for extended periods, store the components in a cool, dry place away from direct sunlight and extreme temperatures.
• Handling: Handle the LCD screen and circuit boards with care to avoid physical damage. Avoid touching the screen surface directly with bare hands.
• Power Supply: Always use a stable 12Vdc power supply with a current rating of 2A or more. Using an incorrect power supply can damage the device.

7. Troubleshooting

If you encounter issues with your VSDISPLAY LCD screen, refer to the following common troubleshooting steps:

• No Display:
  • Ensure the power adapter is correctly connected and providing 12Vdc (minimum 2A).
  • Verify all cables (LVDS, video input) are securely connected to both the screen and the controller board.
  • Check if the video source is active and outputting a signal.
• Incorrect Colors/Distorted Image:
  • Check the LVDS cable connection for any loose pins or damage.
  • Access the OSD menu to adjust brightness, contrast, and color settings.
  • Ensure the video source is outputting a compatible resolution (1280x480 is native).
• Buttons Not Responding:
  • Ensure the keyboard cable is properly connected to the controller board.
  • Check for any physical damage to the keyboard or its cable.
• Screen Enters Standby Unexpectedly:
  • Confirm that a stable video signal is being provided to the selected input.
  • Check the power supply for intermittent connection or insufficient current.

If the issue persists after attempting these steps, please contact VSDISPLAY customer support for further assistance.

8. Specifications

9. Warranty and Support

VSDISPLAY products are designed for reliability and performance. For warranty information and technical support, please refer to the documentation included with your purchase or visit the official VSDISPLAY website. Keep your purchase receipt as proof of purchase for warranty claims.

For specific inquiries or issues not covered in this manual, please contact VSDISPLAY customer service.