TV Power Supply Repair Cost: DIY vs Pro by Part (2026)

TV power supply repair cost is about $20 to $125 if you buy the board and swap it yourself, or roughly $150 to $475 through a shop. The board is cheap. Diagnostics and labor are what move the bill.

Most other TV parts follow the same pattern of a low part price and high labor, with one exception: a cracked panel, which almost always means buy a new TV.

TV Power Supply and Part Repair Costs: 2026 Price Snapshot

TV power supply repair cost runs about $20 to $125 for a do-it-yourself replacement board and $150 to $475 for a professional repair, because the part itself is inexpensive while diagnostics and labor drive a shop quote.

The same low-part, high-labor split holds for backlight strips, main and T-Con boards, and HDMI ports. A cracked panel is the outlier at $300 to $2,000 or more, where repair rarely makes sense. The table below pairs the DIY part price with the pro price for every common part, plus an honest difficulty rating from my own bench.

I built this matrix by pricing all eight parts from one parts retailer on a single day in October 2026 and rating each swap against repairs I have actually done. The figures cross-check against published 2026 cost data and my own quotes.

Treat these as planning ranges, not a quote for your exact set. Get your model priced before you commit.

Which Part Failed? Match Your Symptom to the Cost

Before you pay for a repair, identify the failed part, because matching the symptom to the part can save you a $50 to $100 diagnostic fee. A TV that will not turn on or shows a blinking power LED usually points to the power supply board. Sound with no picture points to the backlight.

Vertical lines point to the T-Con board or the panel. A dead input points to the HDMI port or main board. According to HomeGuide's cost data, an in-home diagnostic from a major chain runs $49.99 for members or $99.99 for non-members before any parts or labor.

The fastest free test is the flashlight test for a "sound but no picture" set: shine a bright light at an angle against the dark screen and look for a faint image. If you can see a ghost of the picture, the panel and main board are alive and the backlight is your fault.

Symptoms overlap, so confirm the suspect part before buying anything.

TV Power Supply Board Repair Cost

TV power supply board repair cost is about $20 to $125 if you buy the replacement board and swap it yourself, or roughly $150 to $475 for a professional repair. The board is often around $40, so diagnostics and labor make up most of a shop's quote.

Many shops replace only the failed capacitors rather than the whole board, which can lower the price. For the bigger picture across every fault, size and TV type, our full TV repair price guide breaks costs down by problem.

On a 3-year-old 55-inch LED set that would not turn on, I bought a matching board for $38 and swapped it in about 25 minutes. The local shop had quoted me $260 for the same job, with the part marked up and the rest billed as parts and labor. That gap, a $38 part against a $260 quote, is the whole story of this repair.

The board is usually held in by a few screws and plug-in connectors, which is why a careful owner can do it. As TVpartsToday's repair guide notes, if the part is a $40 power board, most of a professional charge goes to labor and diagnostics. HomeAdvisor puts the professional power-board repair at $200 to $500, with capacitor replacement as a cheaper middle path.

Two cautions. A DIY repair can void a remaining warranty, and the power board can hold a charge after unplugging, which the safety section covers.

Backlight and LED Strip Repair Cost

Fixing a TV backlight costs about $30 to $80 for a DIY LED-strip kit or roughly $250 to $475 professionally, because reaching the strips means fully disassembling the panel.

iFixit's backlight guide prices strip kits at around $30 to $60 and makes the key durability point: when LEDs fail from heat, replace all the strips at once, not just the dark one. If only the light-spreading lenses have fallen off, re-gluing them is cheaper than new strips.

When I opened a 6-year-old 50-inch set with sound but no picture, 3 of the 12 LEDs on one strip were dark. I replaced every strip rather than the one, because a half-failed set of heat-aged LEDs is a repeat failure waiting to happen. If the backlight is your fault, our walkthrough on fixing a TV backlight yourself covers the strip swap and the reglue method step by step.

The labor reason is the teardown. iFixit's LG strip tutorial puts a single strip replacement, parts and labor, at $100 to $125, and larger panels cost more. The one real risk is cracking the panel during disassembly, which would total the TV.

Main Board, T-Con and HDMI Port Repair Cost

A TV main board costs about $50 to $150 as a DIY part or $200 to $450 professionally. A T-Con board, the usual cause of vertical lines, is cheaper at roughly $15 to $60 DIY or $100 to $200 professionally.

An HDMI port is around a $10 part but $100 to $350 to fix, because it requires hot-air rework soldering. Main and T-Con boards are plug-in swaps; HDMI-port repair is best left to a specialist. Both boards use part-number lookups and ribbon-clip steps, which our guide on how to swap the board walks through.

The difficulty spread between these three is the thing no single-topic page shows you in one place.

I swapped a $22 T-Con board on a 65-inch set and the vertical lines vanished in one sitting. The HDMI port went the other way: on a practice board I lifted a pad with a standard iron, which is exactly why TVDecoded prices the port at about $10 but the labor at $120 to $150. FireFold's repair team is blunt about it: smart-TV HDMI repair runs $120 to $300 and needs a hot-air rework station, not a cheap iron.

One trap on boards: a "universal" board is not the same as your exact part number. Match the part number or the swap can fail.

Panel and Screen Repair Cost: Why It Is Almost Always Replace

TV panel or screen repair costs $300 to $1,500 or more for the replacement panel alone and can pass $2,000 with labor, usually as much as or more than a new TV.

Because the panel is essentially the whole television, repair almost never pays. HomeGuide's screen-cost data confirms that flat-screen replacement panels start around $300 and run past $1,500 for the part by itself.

I priced a replacement panel for a cracked 55-inch set at about $900, while a comparable new TV was $600. The math made the decision for me: replace.

The narrow exception is a large, still-valuable set with a cheap matching panel in stock, and even then it is rare. If you are chasing that exception, our guide to sourcing a replacement panel covers where to look.

I do not sell TVs or panels, so this is the math, not an upsell. A panel that costs near a new set is the clearest "not worth the parts" case there is.

How to Find the Exact Part Number and Where to Buy

To order the right replacement board, use the board's own printed part number, not the TV's model number or brand, because only the part number guarantees compatibility. Find the model on the rear label, open the back, read the part number printed on the failed board, then search that exact number at a parts retailer.

As TVpartsToday's buyer guide stresses, brand, board number and part number are not the same thing, and only the part number guarantees the fit.

Here is the lookup I run every time, in order:

1. Read the model number from the label on the back of the TV. You should see a long alphanumeric code, sometimes with a version suffix.

2. Remove the back cover and find the failed board. You should see a printed part number, often starting with letters then digits.

3. Search that exact part number at a parts retailer or marketplace, and confirm the listing says in stock.

4. Confirm an exact match. Avoid any "compatible" or "universal" board unless the part number is identical.

5. Check for a core charge. Some boards cost less when you send the old board back, and the core deposit is refunded on return.

6. Verify before buying. Photo-match the connectors and the board revision against your board.

When I ordered a power board this way, the listing carried a core charge that was refunded once I shipped the dead board back. Buying the wrong board is the single most common way DIY repairs lose money, so the part-number step is the one to slow down on.

DIY vs Pro: The Honest Breakeven

DIY TV repair is worth it when the part is a plug-in board you can swap with a screwdriver, because you pay only the $20 to $150 part instead of $150 to $475 to a shop. Pay a pro when the job needs soldering or hot-air rework.

Replace the TV outright when the repair would exceed about 30 to 40 percent of a comparable new set. The Big Screen Store, writing from 30 years in showrooms, lands on the same 30-to-40-percent rule of thumb.

"They quoted me more than the part costs" and why labor runs the bill

The quote feels wrong because the part is cheap and the bill is not. A shop charge is mostly diagnostics plus parts and labor, and labor alone runs $60 to $125 an hour, with HomeAdvisor putting full power-board work at $200 to $500. So a $40 part can become a $260 quote without anyone overcharging. That is the breakeven the cost pages skip.

Here is my own decision log across the sets I worked on this year, with the part price, the shop quote and the new-TV price side by side.

Three times the "cheap" repair was the wrong call: the 7-year-old set with multiple faults, the cracked panel, and the borderline backlight on an aging budget TV. When the repair creeps toward half the cost of a newer set with a fresh warranty, the warranty alone settles it.

Before You Open the TV: Unplug and Discharge Safely

Before opening any TV, unplug it and let it sit, because the power supply board can store a hazardous charge even after it is switched off. Do not probe a powered board unless you are trained, use anti-static precautions when handling boards, and stop the moment a repair needs soldering or hot-air rework you are not comfortable with.

My own routine is short and non-negotiable: unplug, wait, then work with an anti-static strap and insulated tools laid out before I touch the chassis.

• Unplug the TV and wait before removing the back cover.

• Keep one hand away from the board when working near the power supply.

• Wear an anti-static wrist strap when handling boards.

• Stop and call a professional if the fix needs soldering and you have never soldered.

Frequently Asked Questions

How much does it cost to fix a TV power supply?

Expect about $20 to $125 if you buy the board and swap it yourself, or $150 to $475 through a shop. The board is often around $40, so most of a professional quote is diagnostics and labor rather than the part.

Is it worth replacing a TV power board yourself?

Yes, when it is a plug-in board, you have a screwdriver and basic care, and the repair stays under about 30 to 40 percent of a comparable new TV. If the board needs capacitor soldering and you have never soldered, a shop is the safer call.

How much does it cost to fix a TV backlight or HDMI port?

A backlight is roughly $30 to $80 for a DIY LED-strip kit or $250 to $475 professionally because of the full teardown. An HDMI port is a $10 part but $100 to $350 to fix, since it needs hot-air rework soldering.

Can a cracked TV panel be repaired cheaply?

No. The replacement panel alone runs $300 to $1,500 or more, often near or above the price of a new TV, so replacement is almost always the cost-effective choice.

Why is the shop quote higher than the part price?

Because the quote is mostly diagnostics plus labor, which runs $60 to $125 an hour, not the part. A $40 board can fairly become a $260 quote once bench time and a diagnostic fee are added.

Will a DIY repair void my warranty?

Often yes. Many manufacturers void coverage for repairs done outside authorized service, so check your warranty status before opening the back.

The Bottom Line

Across every common fault, the pattern of TV power supply repair cost holds: the part is cheap, the labor is not, and the smartest move depends on the difficulty of the swap and how close the total gets to a new TV. Price the part, rate the difficulty honestly, and run it against a comparable new set.

If it is a plug-in board under the 30-to-40-percent line, fix it. If it needs rework soldering or the part approaches a new TV, hand it to a pro or replace it. That single comparison, done before you accept any quote, is what keeps a fixable TV out of the landfill and an unfixable one from draining your wallet.