If your LED TV has vertical lines, distorted colours, a half-screen picture, no picture, repeated restarting, or refuses to turn on, the problem may be related to one of several internal boards.

Two components that are often confused are the TV motherboard (main board) and the T-Con board (Timing Controller).

They perform different jobs, produce different symptoms, and can have very different repair or replacement costs.

For people searching for “LED TV motherboard repair cost”, “TV T-Con board repair cost”, or “TV main board repair cost”, this guide explains what each board does, how technicians distinguish between them, what affects the price in Hyderabad, and when repairing a board may make more sense than replacing the entire TV.

Important: A symptom alone cannot prove that a particular board has failed. A proper diagnosis should be performed before purchasing or replacing a board.

TV Motherboard vs. T-Con Board: What’s the Difference?

The simplest way to understand the two components is:

Motherboard / Main Board

→ Processes the TV’s operating system, inputs and many audio/video functions.

T-Con Board

→ Handles timing and image-data control between the TV’s processing electronics and the display panel on designs where a separate T-Con is used.

The exact architecture differs between TV models. Some modern televisions integrate functions that older televisions handled with separate boards.

That is why the TV model number is essential when diagnosing a board problem.

What Is a TV Motherboard?

The TV motherboard is commonly called the:

• Main board
• Main PCB
• Motherboard
• Mainboard

It is one of the central electronic boards inside a smart TV.

Depending on the television design, it can handle functions such as:

• Operating system
• HDMI inputs
• USB
• Wi-Fi/network functions
• Audio/video processing
• Remote communication
• Application processing
• Communication with other boards

Because so many functions depend on the main board, a motherboard fault can produce several different symptoms.

What Is a T-Con Board?

T-Con means Timing Controller.

On televisions that use a separate T-Con board, it plays an important role in controlling the timing and delivery of image data to the display panel.

It communicates with the main board and panel through high-speed connections such as LVDS or other model-specific interfaces.

Repair documentation from ShopJimmy explains that the T-Con connects the main board to the LCD panel and identifies symptoms such as no picture with working backlight/sound, coloured vertical lines and partial-screen picture problems as possible T-Con-related symptoms.

However, these symptoms can also occur because of panel, cable or other circuit faults.

LED TV Motherboard Failure Symptoms

A faulty motherboard can cause a wide range of problems.

Common symptoms that may justify main-board diagnosis include:

1. TV Does Not Start

You press the power button, but the TV does not complete startup.

Possible causes include:

• Main board
• Power supply
• Protection circuit
• Internal connection

So no power does not automatically mean motherboard failure.

2. TV Gets Stuck on the Logo

The TV displays its brand logo but never reaches the home screen.

This can be associated with:

• Software
• Firmware
• Internal storage
• Main board
• Power-related instability

A boot loop therefore requires diagnosis rather than automatic board replacement.

3. TV Keeps Restarting

The television repeatedly:

Turns on → starts loading → shuts down → restarts

Possible causes include:

• Power supply
• Main board
• Software
• Thermal problems
• Internal storage

Again, testing is required.

4. HDMI Ports Stop Working

If multiple HDMI inputs stop working while other functions remain operational, the main board may need inspection.

However, the HDMI device, cable or individual input circuit should also be checked first.

5. Wi-Fi or Smart Functions Fail

If the TV repeatedly loses Wi-Fi or smart-TV functionality, the main board may be one area a technician investigates.

It isn’t enough by itself to prove that the board needs replacement.

T-Con Board Failure Symptoms

T-Con-related problems are usually more closely associated with picture/display behaviour.

Possible symptoms include:

• Vertical lines
• Horizontal lines
• Coloured bands
• Distorted picture
• Flickering picture
• Half-screen image
• No picture while sound/backlight remains
• Abnormal image timing

Repair documentation identifies coloured vertical lines and missing portions of the image as possible T-Con symptoms.

But there’s an important warning:

The same symptoms can also come from the panel.

For example, vertical lines can result from:

• T-Con
• Ribbon connections
• Panel electronics
• Panel driver circuits
• Other display circuitry

Therefore:

Vertical lines ≠ automatically T-Con replacement.

TV T-Con Board vs Panel Problem

This is one of the most important distinctions in TV repair.

Suppose a customer says:

“My TV has vertical lines.”

There are several possibilities.

Possible T-Con issue

A separate T-Con board may have failed.

Possible connection issue

A ribbon or signal connection may have a problem.

Possible panel issue

The display panel or its integrated driver circuitry may be defective.

If the panel itself is damaged, replacing the T-Con board will not solve the underlying problem.

This is why a technician should diagnose the signal path before ordering a replacement board.

LED TV Motherboard Repair Cost in Hyderabad

There is no single motherboard repair price for every LED TV.

The cost can vary depending on:

• Brand
• TV model
• Screen size
• Board part number
• Type of failure
• Board-level repair vs replacement
• Availability of the board
• Original vs compatible component
• Labour
• Warranty

Current Indian repair references show how wide the variation can be. For example, a current Samsung PCB pricing reference lists different main-board prices for individual 43-inch models, with examples ranging from roughly ₹4,550 to ₹7,300 for the board alone.

Another current India repair reference reports model-dependent Samsung PCB repair estimates ranging from about ₹3,080 to ₹20,473, illustrating why a single generic “motherboard repair price” can be misleading.

These figures are not Vee Techno Electronics prices and should not be presented as a fixed Hyderabad quotation.

A realistic way to think about motherboard cost

The exact quote should come after diagnosis.

TV Main Board Repair Cost

TV main board repair cost and TV motherboard repair cost generally refer to the same broad component category.

The important distinction is:

Repair

A technician identifies and repairs a particular fault on the existing board.

Replacement

The complete main board is replaced with another compatible board.

These are not the same service and should not be priced identically.

TV T-Con Board Repair Cost in Hyderabad

T-Con pricing is also highly model-dependent.

A current Indian TV repair cost reference lists T-Con board-related costs across different sizes and brands, with its broader figures ranging from approximately ₹3,000–₹8,000 for a 32-inch T-Con board and ₹5,000–₹12,000 for a 55-inch board, while complete replacement ranges are different.

Another 2026 repair-cost guide places T-Con replacement at roughly $120–$420 in its market, demonstrating that region, model and labour can substantially affect pricing.

Because these sources use different markets and methodologies, they should be treated as reference ranges rather than a Hyderabad price list.

For Vee Techno Electronics, the correct approach is to quote after checking:

• TV brand
• Model number
• Screen size
• T-Con board number
• Actual fault
• Part availability

What Affects T-Con Board Repair Cost?

Several factors can change the final price.

1. TV Size

A 32-inch TV and a 55-inch TV can use completely different boards.

2. TV Model

Even two TVs from the same brand and size can use different T-Con boards.

3. Board Availability

Common boards may be easier to source.

Older or less common models may require more effort to locate.

4. Repair vs Replacement

A repairable board and a complete replacement board have different costs.

5. Panel Architecture

Some TV designs don’t use a conventional separate T-Con board in the same way older models do.

Some functions may be integrated into other assemblies.

Therefore, don’t order a T-Con based only on the TV’s symptoms.

Which Is More Expensive: Motherboard or T-Con?

There is no universal answer.

A T-Con board can sometimes be less expensive than a complete main-board replacement, but the exact price depends on the TV model and part.

For example, current Samsung India PCB references show that even main-board prices vary significantly between individual 43-inch models.

The same principle applies to T-Con boards.

The right comparison is:

Repair cost for your exact board

vs.

Replacement cost for your exact board

—not a generic price found online.

Motherboard vs T-Con: Symptoms at a Glance

This table is a diagnostic guide, not a fault-confirmation chart.

What If the TV Has Vertical Lines?

Don’t immediately order a T-Con board.

First check:

Do the lines appear on every source?

Try:

• TV channels
• HDMI
• Built-in apps
• TV settings

Do the lines appear in the TV’s own menus?

If yes, the external source is less likely to be responsible.

Is only half of the screen affected?

This can help the technician narrow down the display path, but it still doesn’t prove T-Con failure.

Are the lines fixed or changing?

The behaviour can provide useful diagnostic information.

What If the TV Has No Power?

This is another area where customers often confuse the motherboard with the power board.

A TV that doesn’t turn on can have a problem involving:

• AC input
• Power supply/SMPS
• Main board
• Protection circuit
• Internal connections

Therefore:

No power ≠ automatically motherboard problem.

A technician should determine whether the main board is receiving the required power and whether it is responding correctly before recommending replacement.

What If the TV Is Stuck in a Boot Loop?

A boot loop looks like:

Power ON

↓

Brand logo

↓

Loading

↓

Restart

↓

Brand logo again

This can involve:

• Software
• Firmware
• Internal storage
• Main board
• Power instability

A motherboard replacement should therefore not be the first assumption.

The same principle applies to Android, Google TV and other smart-TV platforms.

Can a TV Motherboard Be Repaired Instead of Replaced?

Sometimes, yes.

If a technician identifies a specific component-level fault and the board is otherwise suitable for repair, repairing the existing board may be an option.

However, replacement may be more practical when:

• Board damage is extensive
• Required components are unavailable
• The board has multiple faults
• A suitable replacement board is readily available
• Repair is not economically sensible

The decision should be made after diagnosis.

Can a T-Con Board Be Repaired?

Sometimes.

Depending on the board and fault, a technician may be able to repair a component or connection.

But some display problems are actually caused by the panel or integrated panel electronics.

If the panel itself is defective, T-Con replacement will not necessarily fix it.

This is one reason professional diagnosis is particularly important for display problems.

Why Model Number Matters So Much

Before asking:

“How much does TV motherboard repair cost?”

provide:

Brand + model number + screen size + symptom

For example:

Samsung 43-inch UA43XXXX — TV restarts continuously.

or:

LG 55-inch XXXX — vertical lines on right side.

This is much more useful than simply saying:

“55-inch LED TV motherboard problem.”

The model number helps identify:

• Board architecture
• Board number
• Compatible replacement
• Display configuration
• Availability of parts

Should You Repair or Replace the TV?

A board repair can make sense when the panel is healthy and the repair cost is reasonable.

Repair may be worth considering when:

• TV is relatively new
• Display panel is healthy
• Board fault is repairable
• Parts are available
• Repair cost is reasonable

Replacement may be worth considering when:

• TV is very old
• Panel is damaged
• Multiple expensive components have failed
• Replacement parts are unavailable
• Total repair cost approaches the value of a comparable new TV

There is no universal percentage or rule that applies to every television.

How Vee Techno Electronics Can Diagnose the Problem

If you’re in Hyderabad and your TV has a suspected motherboard or T-Con problem, Vee Techno Electronics can inspect the television and identify the likely fault before recommending repair.

Common problems include:

• LED TV motherboard faults
• TV main-board problems
• T-Con board problems
• Vertical lines
• Horizontal lines
• Half-screen display
• Distorted colours
• No picture
• Sound but no picture
• Boot loops
• HDMI problems
• Smart-TV problems

The diagnosis should establish whether the fault is actually on the motherboard, T-Con, power board, panel or another component.

LED TV Motherboard & T-Con Repair in Hyderabad

If you’re searching for:

“LED TV motherboard repair cost”

“TV T-Con board repair cost”

or

“TV main board repair cost”

the most useful information to provide is your:

• TV brand
• Exact model
• Screen size
• Problem
• Location in Hyderabad

For example:

Samsung 55-inch LED TV — sound works but screen has vertical lines.

or:

LG 43-inch LED TV — stuck on logo and repeatedly restarting.

With this information, the technician can assess the appropriate diagnostic path instead of assuming that every display or startup problem requires the same board.

Frequently Asked Questions

How much does LED TV motherboard repair cost?

There is no single price. It depends on the brand, model, board number, fault, repair method, parts availability and labour. Current Indian references show substantial model-to-model variation in main-board pricing.

How much does a TV T-Con board repair cost?

The cost varies by TV model, screen size, T-Con design, board availability and whether the existing board is repaired or replaced. Current Indian repair references show broad model/size-dependent ranges rather than one fixed price.

What are the symptoms of a bad T-Con board?

Possible symptoms include vertical or horizontal lines, distorted colours, partial-screen images and no picture with other TV functions still operating. However, similar symptoms can also originate from the panel or connections.

What are the symptoms of a bad TV motherboard?

Possible symptoms include boot loops, startup problems, HDMI or smart-TV issues, random restarting and certain no-power conditions. These symptoms can also have other causes, so diagnosis is necessary.

Is a T-Con board cheaper than a motherboard?

It can be, but there is no universal rule. Both components have model-specific prices, and some TVs integrate functions differently.

Can a T-Con board cause vertical lines?

Yes, a T-Con-related problem can cause vertical lines, but vertical lines can also originate from panel electronics, ribbon connections or the panel itself.

Can a motherboard cause no power?

It can, but a no-power TV may also have a power-supply or other electrical problem. A technician should test the power path before replacing the motherboard.

Should I replace the T-Con board if my TV has lines?

Not without diagnosis. The lines could be caused by the T-Con, panel, connections or another part of the display system.

Should I repair or replace my TV motherboard?

If the existing board has a localized repairable fault, repair may be practical. If the board is extensively damaged or a compatible replacement is readily available, replacement may be considered.

Final Takeaway

The TV motherboard and T-Con board do different jobs, so their symptoms and repair costs should not be treated as interchangeable.

Motherboard-related problems may involve:

• Boot loops
• Startup problems
• HDMI issues
• Smart-TV functions
• Random restarting
• Certain no-power conditions

T-Con-related problems may involve:

• Vertical lines
• Horizontal lines
• Distorted colours
• Half-screen picture
• No picture with backlight/sound

But neither symptom list is a definitive diagnosis.

Before paying for a replacement board, get the TV’s exact model number and fault properly diagnosed. Current Indian pricing references demonstrate that board costs can vary substantially by model and component, so publishing one universal price would be misleading.

For TV motherboard repair, main-board repair or T-Con diagnosis in Hyderabad, Vee Techno Electronics can inspect the television and recommend the appropriate repair based on the actual fault.