1. Introduction
This manual provides essential information for the installation, operation, and maintenance of the E32A71BT, TP.SK518D.PB802, TP.ATM50.PB801, and ATM30 LCD TV motherboards. These boards are designed as replacement components for compatible LCD televisions. Please read this manual thoroughly before attempting any installation or repair.
The product you have received has undergone rigorous testing prior to shipment to ensure its quality and functionality. It is a used component with no broken circuit board components.
2. Product Overview & Specifications
The motherboard is a critical component responsible for controlling various functions of your LCD TV, including video processing, audio output, and input management. A complimentary remote control is included for convenience.
2.1 Key Specifications
- Screen Type: TFT
- Product Type: TFT
- Origin: Mainland China
- High-concerned chemical: None
3. Compatibility and Identification
Ensuring compatibility between the replacement motherboard and your TV model is paramount. Incorrect board selection can lead to malfunction or damage. Always verify the model numbers and board types before installation.
3.1 Identifying Your TV's Components
To correctly identify the necessary replacement parts, it is recommended to inspect the existing components within your TV. Refer to the diagram below for guidance on locating key components and their identification labels.
When inspecting your TV, pay close attention to:
- Screen number: Typically found on a sticker on the back of the LCD panel.
- Power supply board: The board responsible for distributing power.
- Motherboard (Main board): The primary circuit board, which this product replaces.
- T-con board: The timing controller board, often located near the top of the LCD panel.
- TV model: Usually found on a label on the back of the TV casing.
Match these details with the specifications of the replacement board to confirm compatibility.
4. Installation/Setup
Installation of a TV motherboard requires technical knowledge and experience with electronics. If you are not confident in performing this task, it is highly recommended to seek assistance from a qualified technician.
4.1 Safety Precautions
- Always disconnect the TV from the power source before beginning any installation or repair work.
- Discharge any residual power by pressing and holding the power button for a few seconds after unplugging.
- Wear anti-static gloves or use an anti-static wrist strap to prevent electrostatic discharge (ESD) damage to sensitive electronic components.
- Work in a clean, well-lit area.
4.2 Installation Steps (General Guide)
- Carefully open the back panel of your TV, typically by removing screws.
- Locate the existing motherboard. Take photos of all cable connections before disconnecting them.
- Gently disconnect all cables and connectors from the old motherboard.
- Remove the screws securing the old motherboard and carefully lift it out.
- Position the new motherboard in place and secure it with the screws.
- Reconnect all cables and connectors to the new motherboard, ensuring they are firmly seated. Refer to your photos if needed.
- Before closing the TV, perform a preliminary power-on test to ensure basic functionality.
- If the test is successful, reattach the back panel of the TV.
5. Operation
Once installed, the motherboard functions as the central control unit for your TV. Normal operation will resume upon successful installation.
5.1 Using the Remote Control
The included remote control allows you to navigate TV menus, change channels, adjust volume, and access other features. Familiarize yourself with the button layout for optimal use.
- Power Button: Turns the TV on/off.
- Number Buttons: For direct channel input.
- Volume (+/-): Adjusts audio level.
- Channel (CH +/-): Changes channels.
- Navigation Buttons (Arrows, OK): For menu navigation.
- Input/Source: Selects input sources (HDMI, AV, etc.).
6. Maintenance
Proper maintenance can extend the lifespan of your TV's components.
- Keep Dry: Avoid exposing the TV to moisture or high humidity.
- Cleanliness: Periodically clean the TV's vents to prevent dust buildup, which can lead to overheating. Use a soft, dry cloth for cleaning.
- Avoid Static: When handling internal components, always take anti-static precautions.
- Ventilation: Ensure adequate airflow around the TV to prevent overheating.
7. Troubleshooting
If you encounter issues after installing the new motherboard, consider the following troubleshooting steps:
7.1 Common Issues and Solutions
- No Power:
- Check if the TV is properly plugged into a working power outlet.
- Verify all power connections to the motherboard and power supply board are secure.
- Ensure the power button on the TV or remote is functioning.
- No Display/Black Screen:
- Confirm all ribbon cables (especially to the T-con board and LCD panel) are correctly connected.
- Check the input source selection using the remote control.
- Ensure the screen number and TV model are fully compatible with the installed motherboard.
- Incorrect Display (e.g., distorted image, wrong colors):
- This often indicates an incompatibility issue or a loose connection to the LCD panel or T-con board. Recheck all connections.
- Double-check the motherboard model against your TV's original board specifications.
- Remote Control Not Working:
- Ensure batteries are correctly inserted and have sufficient charge.
- Check for any obstructions between the remote and the TV's IR receiver.
If the product is faulty upon receipt or during shipping, please inform us immediately.
8. User Tips
- Verify Compatibility Carefully: Before purchasing and installing, always verify the model numbers of your TV, screen, and existing boards against the specifications of the replacement motherboard. Mismatched boards are a common cause of non-functionality.
- Document Disassembly: Take clear photos or videos during the disassembly process, especially of cable connections, to aid in correct reassembly.
- Professional Installation: If you lack experience with TV repair, consider professional installation to avoid potential damage to the new board or your TV.
- Test Before Final Assembly: After installing the new board and reconnecting essential cables, perform a quick power-on test before fully reassembling the TV's back panel.
9. Warranty and Support
This product has been tested to ensure good quality before shipment. In the event of any issues or concerns with the goods, please contact the seller directly for assistance. They are committed to handling any problems you may encounter.
The product may be eligible for free returns within 90 days, subject to the seller's return policy. Please consult the seller for specific details regarding returns and support.
