Seeing a vertical line, horizontal band, or coloured streak across your Sony Bravia TV can make you worry that the entire screen has failed. Fortunately, lines on the display do not automatically mean that the panel needs to be replaced.
A Sony Bravia TV can develop screen-line problems for several reasons. A loose display connection, T-Con board problem, backlight fault, main-board issue or physical panel damage can all produce different types of symptoms.
Wisdom Electronics & Computers provides professional Sony Bravia TV display diagnosis and repair services across Pune and Pimpri-Chinchwad. Therefore, an important step is to identify the actual faulty component before deciding whether the TV needs repair or replacement.
Since 2017, our team has worked on Sony Bravia televisions ranging from older W-series models to newer 4K and OLED televisions. Our founder has 17 years of experience at a Sony Authorised Service Centre, giving our technicians detailed familiarity with Sony television hardware and common failure patterns.
This guide explains what can cause lines on a Sony Bravia screen, how vertical and horizontal lines differ, which checks you can safely perform at home, typical repair costs in Pune, and when professional diagnosis is recommended.
Quick Answer
Lines on a Sony Bravia TV can result from a loose ribbon connection, T-Con board failure, backlight problems, main-board faults or damage to the display panel.
A line’s appearance alone cannot identify the faulty component. For example, a single vertical line may have a different cause from several horizontal bands appearing after the TV warms up.
A proper diagnosis helps determine whether the problem can be repaired without replacing the expensive display panel.
- What Causes Lines on a Sony Bravia TV Screen?
- Sony Bravia Vertical Lines vs Horizontal Lines — What's the Difference?
- Is It the Sony Bravia Panel or Something Else?
- Sony Bravia TV Lines — Troubleshooting Steps at Home
- Sony Bravia TV Lines Repair Cost in Pune & Pimpri-Chinchwad
- Is It Better to Repair or Replace Your Sony Bravia TV?
- Real Repair Examples from Pune & Pimpri-Chinchwad
- How Our Sony TV Repair Service Works in Pimpri-Chinchwad & Pune
- Frequently Asked Questions
What Causes Lines on a Sony Bravia TV Screen?
Several internal components can produce lines or bands on a Sony Bravia display. The same symptom can sometimes be produced by completely different faults, which is why replacing parts without diagnosis is not recommended.
The following problems commonly cause these lines.
1. Loose or Damaged Ribbon Cable
Ribbon cables carry image signals between the television’s circuit boards and display assembly. A connection can become loose after movement, installation, vibration or long-term use.
A damaged or poorly seated connection may produce:
- One or more vertical lines
- Lines that appear intermittently
- Lines that change when the TV warms up
- Display problems after the television has been moved
- Coloured lines or sections of missing picture
If a loose connection or faulty cable causes the problem, a technician can often fix it without replacing the panel.
Typical repair cost: ₹500–₹2,000
Do not press the actual display surface to test the connection. Pressure on a thin TV panel can create permanent damage.
2. Faulty T-Con Board
The Timing Control, or T-Con, board plays an important role in processing and delivering image data to the display panel.
When the T-Con circuit develops a fault, the picture may show:
- Several vertical lines
- Horizontal lines or bands
- A section of the screen becoming distorted
- Pink, green, white or other coloured lines
- Lines appearing immediately after the TV starts
- Sudden display problems following a voltage fluctuation
A T-Con fault can sometimes be repaired or resolved through board replacement, depending on the model and condition of the board.
Typical Sony Bravia T-Con repair or replacement cost in Pune and Pimpri-Chinchwad: ₹2,500–₹6,000
3. LED Backlight Problems
Not every line you see on an LED Sony Bravia comes from the display signal system.
A failing LED backlight strip can produce uneven illumination, bright or dark bands and horizontal areas that look different from the rest of the screen.
You may notice:
- Dark horizontal areas
- Bright or dim bands
- Uneven brightness
- Symptoms becoming more noticeable in dark scenes
- Gradually worsening display brightness
Backlight problems are generally more common on older LED/LCD televisions after several years of regular use.
Typical backlight repair cost: ₹1,500–₹4,000, depending on the television size and model.
4. Triluminos Display or Panel Damage
Sony’s Triluminos display technology is designed to reproduce a wider and more vivid range of colours on supported models. However, the display assembly itself remains one of the most delicate and expensive components of a television.
Physical impact, pressure, bending or accidental damage can affect the panel even when the outer surface does not immediately show an obvious crack.
Possible warning signs include:
- Ink-like patches spreading from an area of the screen
- Lines that gradually increase
- Coloured patches surrounding the affected area
- A visible crack or impact mark
- A portion of the screen permanently losing picture
However, panel replacement is normally the most expensive option.
Typical panel replacement range: ₹12,000–₹40,000+, depending heavily on model and screen size.
For an older Sony Bravia, a panel replacement may not make financial sense. A technician should inspect the television before recommending this option.
Sony Bravia Vertical Lines vs Horizontal Lines — What’s the Difference?
The direction and behaviour of the lines can provide useful clues, although they cannot replace a proper diagnosis.
Vertical Lines on Sony Bravia TV
Vertical lines extend from the top toward the bottom of the screen.
They may appear as:
- Thin white lines
- Pink or green lines
- Black vertical lines
- Several lines grouped together
- Lines that flicker
- Lines visible immediately after startup
Common possibilities include a ribbon connection problem, a T-Con fault or a display-panel issue.
If you see only one thin line, the cause may differ from the fault that creates multiple lines across half the screen.
Horizontal Lines on Sony Bravia TV
Horizontal lines travel across the width of the display.
They may look like:
- Thin coloured bands
- Dark horizontal bars
- Bright strips
- Flickering horizontal areas
- Multiple lines concentrated near the top or bottom
Horizontal bands can be associated with T-Con or backlight-related problems.
If the lines appear only after the television has been running for some time, temperature-sensitive components may also need to be checked.
Coloured Lines on Sony Bravia TV
Signal-processing or display-connection problems can cause pink, green, red, or white lines.
A coloured line does not automatically mean the panel is damaged.
The technician should check the display connection, T-Con circuitry, source inputs and panel behaviour before concluding that a panel replacement is necessary.
Sony Bravia OLED models such as the A80K require additional care during diagnosis because OLED display technology differs from conventional LED/LCD models.
Is It the Sony Bravia Panel or Something Else?
This is one of the most important questions when a Sony Bravia develops lines.
A display panel is expensive, so it is better to rule out repairable components before considering panel replacement. If your Sony Bravia TV has a black screen, the cause may be related to the backlight, power supply, or another internal component.
Torch Test
A torch test can sometimes show whether the TV is still producing an image.
In a darker room, switch on the television and shine a torch toward the screen from an angle.
If you can identify an image beneath a dark or poorly illuminated area, the television may still be producing the picture while the backlight system has a problem.
However, the torch test cannot conclusively identify a T-Con, ribbon or panel fault. It is only a preliminary check.
Frame/Connection Test
Do not press the display itself.
If a technician gently checks the television frame or examines the internal connections and the symptom changes, it can provide a clue about a connection-related problem.
Never push on the screen to try to make lines disappear. A delicate Sony Bravia panel can be permanently damaged by pressure.
Input Source Test
Use the Sony remote to switch between:
- Live TV
- HDMI 1
- HDMI 2
- Other HDMI inputs
- AV or other available sources
If the lines are visible regardless of the input source, an internal television fault becomes more likely.
If the problem occurs only with one connected device, check the external device and HDMI cable first.
What About HDMI ARC/eARC?
Sony Bravia televisions often use HDMI ARC or eARC to send audio from the TV to a soundbar or AV receiver.
ARC/eARC is primarily an audio feature, so it is not normally the direct cause of physical lines across the display. However, HDMI communication or handshake problems involving an external device can sometimes create unusual picture behaviour.
As a simple check, disconnect the soundbar, AV receiver and other HDMI devices, then test the TV by itself.
If the lines disappear, reconnect devices one at a time to identify the source of the problem.
Sony Bravia TV Lines — Troubleshooting Steps at Home
Before booking a repair, you can perform a few safe checks.
Step 1 — Restart the TV
Turn the Sony Bravia off and unplug it from the wall socket.
Keep the TV unplugged for a few minutes, then connect it to the power again.
A complete power cycle can clear temporary software or HDMI communication problems.
Step 2 — Disconnect HDMI Devices
Remove HDMI cables connected to:
- Set-top boxes
- Gaming consoles
- Streaming devices
- Soundbars
- AV receivers
- Other external equipment
Switch on the TV without external HDMI devices.
If the display returns to normal, reconnect the devices individually.
Step 3 — Try Another Input
Switch between Live TV and the available HDMI inputs.
If the lines are visible on every source, the television itself should be inspected.
If the problem appears only on one source, investigate the connected device and cable before assuming that the Sony Bravia panel has failed.
Step 4 — Check for Software Updates
Sony Android TV models can occasionally experience temporary software-related display behaviour.
Check the television’s software-update section and install an available official update if appropriate.
The exact menu path can differ between Sony Bravia generations, so use the menu options shown on your specific model.
Step 5 — Factory Reset
If the problem appears to be software-related and basic troubleshooting has not helped, a factory reset can be considered.
A reset removes saved settings, apps and network information, so it should not be the first step for a persistent physical line problem.
If the lines remain visible after restarting the TV, changing inputs, and disconnecting external devices, we recommend professional hardware diagnosis.
Sony Bravia TV Lines — What NOT To Do
Do not press the screen.
Pressing a Sony Bravia display to make lines disappear can turn a potentially repairable connection problem into permanent panel damage.
Do not repeatedly power cycle the TV.
If a component is already failing, repeatedly switching the television on and off is unlikely to solve the underlying problem.
Do not open the TV without experience.
Televisions contain high-voltage sections and components that can retain electrical charge.
Opening the back cover without proper knowledge can create a safety hazard and may damage boards or connectors.
Do not ignore lines that are getting worse.
If one line becomes several lines or an affected area continues to expand, arrange a diagnosis rather than waiting indefinitely.
Early identification can help determine whether a repairable component is responsible.
Do not assume that the panel has failed.
Seeing lines does not automatically mean that the complete display panel needs replacement.
A technician should check the T-Con system, ribbon connections, main board, backlight system and panel before giving a final recommendation.
Sony Bravia Models That Commonly Develop Screen Lines
Screen-line and display-related faults can occur across different Sony Bravia generations.
Models we commonly discuss for diagnosis include:
- Sony Bravia X75K — possible T-Con, ribbon and display-related faults
- Sony Bravia X80K — display connection, T-Con and backlight-related problems
- Sony Bravia A80K OLED — OLED display faults requiring specialist inspection
- Sony Bravia W660G — ageing backlight and display-connection issues
- Sony Bravia W830C — older-model backlight, board and ribbon-related faults
- Sony Android TV models — software, HDMI communication and hardware-related display symptoms
- Sony Bravia 4K HDR televisions — board and display issues can occur following electrical fluctuations
- Older Sony Bravia Full HD models — ageing backlight and connection problems may become more common
The model number alone does not determine the repair. The exact symptom and internal condition of the television matter more.
Sony Bravia TV Lines Repair Cost in Pune & Pimpri-Chinchwad
| Problem | Estimated Repair Cost | Typical Repair Time |
| Loose Ribbon Cable | ₹500–₹2,000 | 30–60 minutes |
| T-Con Board Repair/Replacement | ₹2,500–₹6,000 | 1–2 hours |
| LED Backlight Repair | ₹1,500–₹4,000 | 2–4 hours |
| Main Board Repair | ₹3,500–₹8,000 | 2–5 hours |
| Display Panel Replacement | ₹12,000–₹40,000+ | 2–3 days |
These are estimated ranges, not fixed prices.
The Sony Bravia model, screen size, faulty component, parts availability, and repair option determine the final cost.
A diagnosis before approving the repair is the best way to avoid unnecessary expense.
Is It Better to Repair or Replace Your Sony Bravia TV?
Repair can make sense when:
- The television is relatively new
- The display panel is not physically damaged
- The fault is related to a ribbon cable, T-Con, backlight or board
- The repair cost is reasonable when compared with the price of a replacement TV.
- The television otherwise works normally
Replacement may be worth considering when:
- The display panel is cracked
- The panel has extensive internal damage
- Several major components have failed
- The television is very old
- The repair estimate is disproportionately high
Sony Bravia televisions vary considerably in price depending on size and technology. OLED models, large-screen models and premium 4K televisions can cost significantly more than entry-level models.
For this reason, the repair-versus-replacement decision should be based on the actual model and diagnosis rather than a generic percentage.
At Wisdom Electronics & Computers, we explain the condition of the television before beginning repair work. If replacing the TV makes more financial sense, we will tell you rather than recommending an unnecessary repair.
Real Repair Examples from Pune & Pimpri-Chinchwad
Case 1 — Single Pink Vertical Line, Wakad
A customer from Wakad contacted us after noticing a single pink vertical line on a 50-inch Sony Bravia X80K.
Our technician inspected the display and connections and found that the panel itself was still producing the picture. The issue was traced to a display connection problem.
Our technician completed the repair in approximately 45 minutes, and the customer paid ₹1,200.
Case 2 — Sony Bravia Developed Multiple Horizontal Lines After a Power Cut, Chinchwad
A Sony Bravia W-series television in Chinchwad developed several horizontal lines after a power interruption.
Testing indicated a T-Con-related failure associated with the voltage event. Our technician replaced the T-Con board and restored the television.
Repair cost: ₹4,500
Case 3 — Green Lines on Half the Screen, Hinjewadi
A customer in Hinjewadi reported green vertical lines covering the left portion of a Sony Bravia Android TV.
After testing the television, our technician traced the fault to the display-control circuitry. A T-Con board replacement restored the picture.
Repair cost: ₹3,800
These examples show why the same symptom can have different causes and repair costs.
How Our Sony TV Repair Service Works in Pimpri-Chinchwad & Pune
Step 1 — Book a Home Visit
Call or WhatsApp Wisdom Electronics at +91 9765536767.
Tell us whether the lines are vertical, horizontal, coloured, intermittent or limited to one section of the display.
Step 2 — Same-Day Technician Visit
Our technician provides doorstep service in Pimpri-Chinchwad, Wakad, Chinchwad, Baner, Hinjewadi and other Pune areas, subject to availability.
Step 3 — Diagnosis
The technician checks the display behaviour, input sources, connections and relevant internal components to identify the likely cause.
Step 4 — Transparent Quote
Once we identify the fault, we provide the repair estimate before starting any repair work.
There are no unnecessary repairs simply because a particular component is suspected.
Step 5 — Repair with Sony-Compatible Parts
When replacement is necessary, our technician uses suitable Sony-compatible components based on the TV model and repair requirement.
Our technicians can complete many ribbon, T-Con, and backlight-related repairs on the same day, depending on the fault and parts availability.
Step 6 — Warranty
Applicable repairs are covered by a 1-year warranty on parts and labour, as per the service terms.
Areas We Serve
We provide Sony Bravia TV repair services across:
Kalewadi, Wakad, Pimple Saudagar, Chinchwad, Akurdi, Nigdi, Moshi, Chikhali, Ravet, Baner, Hinjewadi, Aundh, Pimple Nilakh, Sangvi, Bhosari and other areas of Pimpri-Chinchwad (PCMC).
We also provide doorstep Sony TV repair across Pune.
For customers looking specifically for Sony TV repair in Pune, our Sony repair service page provides more information about the service and booking process.
Why Customers in Pune Choose Wisdom Electronics for Sony TV Repair
- 17 years of experience at a Sony Authorised Service Centre before founding Wisdom Electronics
- Experience with Sony Bravia W-series, X-series, Android TV and OLED models
- 1,000+ Sony TVs repaired since 2017
- Doorstep diagnosis before approving repair work
- Sony-compatible spare parts
- Same-day service available across Pune and Pimpri-Chinchwad
- 1-year warranty on applicable repairs
- Transparent repair recommendations
- Honest advice when replacement is more practical than repair
Frequently Asked Questions
Vertical lines can be associated with a loose ribbon connection, a T-Con board problem or a display-panel fault. The appearance and behaviour of the line help the technician narrow down the cause.
Yes, in many cases. If the problem is caused by a ribbon connection, T-Con board or another repairable component, panel replacement may not be necessary.
Typical ribbon-related repairs can range from ₹500–₹2,000, while T-Con-related repairs are commonly around ₹2,500–₹6,000.
The cost depends on the failed component. Ribbon cable repair may cost around ₹500–₹2,000; T-Con repair or replacement may cost around ₹2,500–₹6,000, while panel replacement can range from ₹12,000–₹40,000+.
The final estimate is provided after diagnosis.
A single line does not necessarily mean that the panel has failed.
It may be related to a display connection or another component, but the television should be inspected before assuming the cause.
A power interruption or voltage fluctuation can affect television boards and other electronic components.
If lines appeared immediately after a power event, the T-Con or main-board circuitry should be checked.
Using suitable surge protection or voltage protection can help reduce the risk of damage from electrical fluctuations.
The repair time depends on the fault.
Our technicians can complete some ribbon- or board-related repairs within a few hours, while parts-dependent repairs or panel replacement may take longer.
Yes. We provide diagnosis and repair services for Sony Bravia OLED models such as the A80K, along with X-series, W-series and Sony Android TV models.
OLED display faults require careful inspection because the display technology differs from conventional LED/LCD televisions.
It can be worth repairing when the panel is intact and the fault is limited to a repairable component.
For an older television with expensive panel damage, replacement may be more practical.
The decision should be made after checking the model, age, panel condition and repair estimate.
A change in the symptom can sometimes point to a connection-related problem, but never press or flex the TV to test it.
The display is delicate, and pressure can cause permanent damage to the panel.
Yes. Wisdom Electronics provides doorstep Sony Bravia TV repair across Pune and Pimpri-Chinchwad, with same-day visits available in many areas, depending on technician availability.
People May Also Ask
Coloured lines may be related to the T-Con system, display connections or the panel itself. Pink, green and white lines can have different causes, so the television should be tested before ordering a replacement panel.
In many cases, yes.
If the problem is caused by a T-Con board, ribbon connection, backlight or another repairable component, the television may be restored without replacing the entire display.
If the panel itself is physically damaged, however, the repair can be considerably more expensive.
Possible signs include visible cracks, ink-like spreading, permanent coloured patches and lines that expand from an area of physical damage.
However, these symptoms are not enough for a remote diagnosis. A technician should inspect the television before confirming panel damage.
Conclusion
Lines on a Sony Bravia TV screen can be frustrating, but they do not automatically mean that the television needs a new panel.
A single vertical line, multiple horizontal bands or coloured streaks can result from different faults, including ribbon connections, T-Con circuitry, backlight components, main-board problems or actual display damage.
The safest approach is to identify the cause before spending money on a major replacement.
If your Sony Bravia TV is showing lines in Pune, Pimpri-Chinchwad or Kalewadi, Wisdom Electronics & Computers provides doorstep diagnosis and Sony TV repair services.
Our team has experience working with Sony Bravia televisions across different generations, including W-series, X-series, Android TV and OLED models.
Still seeing lines on your Sony Bravia? Our technicians are ready to help — same-day, at your doorstep in Pune & Pimpri-Chinchwad.
For Sony Bravia TV repair in Pune and Pimpri-Chinchwad, call or WhatsApp +91 9765536767.