A simple method to check the power board:
Turn off the power and disconnect the cable connection between the power board and the motherboard. Then turn on the power and observe the backlight to see if it is constantly on. If it is, the power board is good. If it is not, either the power board is faulty or the backlight is faulty
Tips for repairing TV:
The power cycle, backlight switch, lines on the screen, or absence of pictures on this model are due to poor screen performance. Replacing the power board does not solve these problems.
If you need to cancel the purchase, you can respond before we ship it, as we cannot cancel the transaction after we ship it. If your TV doesn’t turn on, it could be the power supply board.
• If you see very dim video or no video on the screen, but you know your TV has power and is on, then the power supply could be bad.
• If your TV turns on and then shuts off quickly, it could be your power supply board.
These are helpful tips to get you started and don’t represent accurate diagnoses for every TV model and failure. If you’re unsure of your diagnosis,
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1: Please read the title carefully before purchasing. Please confirm the board machine model and machine model. If you are not sure, the right to buy the product does not match the work, which is the responsibility of the buyer. We are not responsible. We can accept the return, but we do not bear the transportation fee.
2. These products are in use and the circuit board components are not damaged. We will test them before delivery,
3. All products are tested before shipment. If the product breaks down during transportation, please inform us immediately after receiving it.
4: Don't be controversial because the product is too old. We have a detailed description. If you can't accept it, please don't place an order to avoid unnecessary disputes. Thank you.
5: Some products are new and original. If there is a new inventory, we will send out all new products. If the new inventory is sold out, we will send out the old products, but all products have been strictly tested before sending out, so don't worry! I hope you understand!
6: All products have a three-month warranty. If you have any quality problems, you can contact us.