TV repair: what to know

What the job involves, what changes the price, and what to ask a pro.

What tv repair is

TV repair diagnoses a television with no picture, no sound, no power or a backlight problem, then repairs or replaces components such as the power board, backlight strips, cables or the main board, when repair makes sense. People call when the TV stops working, and the repair cost has to be weighed against the age and size of the set.

Signs you need it

  • The TV will not turn on, or it turns on briefly and then shuts off
  • The picture is dark, dim on one side, or shows bright lines and stripes
  • The screen is blank but the sound still plays, or the picture shows only a faint image
  • The TV shows colored blocks, flicker or a picture that breaks up in places
  • The TV has no sound from its speakers, or the sound cuts out on one input

What the pro does

  • Test the power supply, the input source and the cables to rule out simple faults first
  • Check the TV's status lights, the error codes and the service menu readings where the model provides them
  • Test the power board, the main board and the backlight circuit to find which section has failed
  • Replace or repair the faulty part, such as the power board, backlight strip, T-con board or cable
  • Reassemble the TV and test the picture, sound and each input at full brightness
  • Explain the repair, the part numbers and the warranty, and advise whether the screen is worth keeping

What changes the price

Every job is different, so we do not publish prices. These are the things that move the quote up or down.

  • TV size, brand and age, and whether parts are still available for that model
  • Which part has failed, such as the power board, backlight, T-con board or main board
  • Whether the panel itself is damaged, such as cracks or dead pixels, which usually makes repair not worth it
  • Whether the TV is wall mounted, which adds time to remove and reinstall it
  • How hard the back cover is to open and how many screws and connectors must be handled
  • Whether a replacement part must be ordered and how long that takes
  • Whether the TV must be taken to a shop rather than repaired on site

What a written quote should spell out

  • The fault found, and the test that confirmed it
  • Each part replaced, listed by part number and what it fixes
  • Whether the repair is done on site or the TV must be taken in
  • Testing and reassembly, shown as a separate line
  • Warranty on the parts and labor, and what happens if the fault returns
  • A clear note on whether repair or replacement makes more sense, and why

Questions to ask before you hire

  • What fault did you find, and how did you confirm it?
  • Is the part still made for my TV, and how long will the order take?
  • Is the screen damaged, and would that make the repair not worth it?
  • Will you test the TV for a set time before you leave?
  • What warranty covers the part and the labor?
  • Do you recommend repair or replacement, and what are the trade-offs?
  • What happens if the TV fails again after the repair?

Red flags

  • They will not show you the fault or the part they plan to replace
  • They replace the whole panel to fix a power board
  • They open the TV without warning you about the high-voltage parts inside
  • They quote a new TV without testing the power board, the backlight and the cables
  • They refuse to put the part numbers and the warranty in writing

What you can do yourself

A homeowner can check the power cord, the wall outlet, the input source, the cables and the TV's remote, then reset the TV by unplugging it for a few minutes. Do not open the back of the TV, because the power board can hold a dangerous electrical charge even after the set is unplugged. Call a pro for any repair inside the TV, any part replacement and any fault that remains after the simple checks.

Licenses and permits

TV repair usually does not need a separate contractor license, but any repair that involves in-wall power or an outlet may need a licensed electrician. Check with your state or local licensing agency for the requirements that apply to the repair shop or technician you hire.

TV repair questions

Is it worth repairing an old TV?

It depends on the TV's age, its size, the part that failed, whether parts are still available, and the cost of the repair compared with a new set. A pro can explain the repair and replace options in writing.

Why does my TV have sound but no picture?

This often points to a backlight or a panel fault rather than the audio board. A pro can check the backlight and the video path to confirm which part is at fault.

Why does my TV turn on and then shut off?

A TV that turns on and then shuts off can have a failing power board, an overheating fault or a protection circuit trip. Unplug the TV and call a pro, since the fault may involve high-voltage parts.

About this guide

This national guide is written and checked by infinibell. Rules and conditions differ by place, so local pros are credited on guides for the cities they serve, not on national ones.

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