1. Introduction
This manual provides instructions for the ASHATA CCFL Lamp Large Port High Pressure Inverter Board, designed to power up to four Cold Cathode Fluorescent Lamps (CCFL) for backlighting 10-22 inch LCD panels. Please read this manual carefully before installation and operation to ensure proper use and safety.
2. Product Overview
The ASHATA CCFL Lamp Inverter Board is a DC to AC backlight inverter specifically engineered for LCD panel backlighting applications. It features robust design and multiple protection mechanisms to ensure stable and safe operation.
Figure 2.1: Top view of the ASHATA CCFL Lamp Inverter Board.
Key Features:
- Designed for lighting 4 CCFL lamps of backlight LCD panels.
- Supports 10-22 inch screens.
- Equipped with over voltage protection (OVP).
- Includes lamp open and short circuit protection.
- Features over current limit protection of DCDC (OCP).
- Fine workmanship ensures good performance and reliability.
Figure 2.2: The inverter board is compatible with 10-22 inch LCD screens.
Figure 2.3: The board's design incorporates over-voltage, lamp open/short circuit, and over-current protections.
3. Specifications
| Feature | Specification |
|---|---|
| Brand | ASHATA |
| Model Name | ASHATA1vq8hxneu9 |
| Input Voltage | 10-28 Volts DC |
| Output | AC for 4 CCFL lamps |
| Screen Size Support | 10-22 inches |
| Protection Features | Over Voltage Protection (OVP), Lamp Open/Short Circuit Protection, Over Current Protection (OCP) |
4. Safety Information
WARNING: HIGH VOLTAGE! This device operates with high voltage. Improper handling can result in electric shock, injury, or death. Always ensure the power supply is disconnected before making any connections or performing maintenance.
- Only qualified personnel should install or service this device.
- Do not operate the inverter board in wet or damp conditions.
- Ensure proper insulation for all connections.
- Verify input voltage is within the specified range (10-28V DC) to prevent damage.
Figure 4.1: The inverter board features a clear 'DANGER HIGH VOLTAGE' label on the transformer.
5. Setup and Installation
Follow these steps for proper installation of the CCFL Lamp Inverter Board:
- Power Disconnection: Ensure all power to the LCD panel and associated components is disconnected before beginning installation.
- Identify Connections: Locate the input power connector on the inverter board and the output connectors for the CCFL lamps. The board typically has a multi-pin connector for DC input and smaller connectors for CCFL lamp outputs.
- Connect Power Input: Connect the DC power supply (10-28V) to the input connector of the inverter board. Pay close attention to polarity (positive and negative terminals). The included wiring harness (Figure 5.2) can be used for this connection.
- Connect CCFL Lamps: Connect the CCFL lamps from your LCD panel to the output ports on the inverter board. This board supports up to four CCFL lamps. Ensure secure connections.
- Mounting: Secure the inverter board in a suitable location within the display enclosure, ensuring it is protected from physical damage and has adequate ventilation. Avoid placing it near heat-sensitive components.
- Final Check: Double-check all connections for security and correct polarity before applying power.
Figure 5.1: The inverter board showing its various input and output connectors for power and CCFL lamps.
Figure 5.2: Example of a typical wiring harness used for connecting power to the inverter board.
6. Operation
Once properly installed and connected, the ASHATA CCFL Lamp Inverter Board operates automatically. When DC power is supplied within the 10-28V range, the board converts it to the necessary AC voltage to illuminate the connected CCFL lamps, providing backlight for your LCD screen.
- Ensure the input voltage is stable and within the specified range for optimal performance and longevity.
- The board's built-in protection features will activate in case of over-voltage, over-current, or lamp faults, potentially shutting down the output to prevent damage.
7. Maintenance
The ASHATA CCFL Lamp Inverter Board is designed for minimal maintenance. However, adhering to the following guidelines can help ensure its long-term reliability:
- Keep Clean: Periodically inspect the board for dust accumulation. If necessary, gently clean with a soft, dry brush or compressed air. Ensure power is disconnected before cleaning.
- Avoid Moisture: Protect the board from moisture and liquids, which can cause short circuits and damage.
- Ventilation: Ensure the board is installed in an area with adequate airflow to prevent overheating.
- Connection Integrity: Occasionally check all electrical connections to ensure they remain secure.
8. Troubleshooting
If you encounter issues with your ASHATA CCFL Lamp Inverter Board, consider the following troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| No backlight / Lamps do not light up |
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| Backlight flickers |
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| Backlight is dim |
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If the problem persists after attempting these solutions, contact ASHATA customer support for further assistance.
9. Warranty and Support
ASHATA products are manufactured to high-quality standards. For warranty information, please refer to the documentation provided at the time of purchase or visit the official ASHATA website. If you require technical support or have questions regarding the installation or operation of your CCFL Lamp Inverter Board, please contact ASHATA customer service through their official channels.
For more information, visit the ASHATA Store on Amazon.