TV Won’t Turn On After a Power Surge? Repair or Replace?

What to check before calling a repair shop

If you notice smoke, a burning smell or visible electrical damage, stop using the setup and seek professional help. Otherwise, follow the manufacturer’s no-power troubleshooting steps for your exact TV model. Leave the cabinet closed and internal electrical testing to a qualified repair technician.

• Check the standby light. Note whether it’s off, steady or blinking. If it blinks in a repeating pattern, record it for the repair shop.
• Try the TV’s own power button. If the TV responds there but the remote doesn’t, start with the factory remote replacement guide.
• Note how far it gets. A startup logo, repeated restarts or sound with a dark screen gives the technician more detail than “it won’t turn on.” If you still hear sound, see our guide to a TV with sound but no picture.

Use your manufacturer’s instructions for your model. Sony’s TV troubleshooting guide is one example of how manufacturers separate power, picture and remote symptoms.

Is it worth replacing the main board?

Start with a diagnosis. Ask the shop what it found, whether it can source the correct part for your full model number, and what the repair would cost with parts and labor. If the TV may still be covered, check with the manufacturer before authorizing work.

Compare the written repair quote with the cost of a comparable replacement, including delivery, a new bracket if needed, and remounting. A repair may make sense when the part is available and the total is comfortably below replacement cost. If the quote is close to the cost of a comparable new TV, compare the repair warranty with the warranty on the replacement.