Seeing lines on your Samsung TV screen can be alarming — especially when they appear suddenly during your favourite show. Whether you notice a single vertical line, multiple horizontal lines, or coloured streaks across the display, the problem is more common than most people realize.
From our experience repairing Samsung TVs across Pimpri-Chinchwad, vertical or horizontal lines often appear suddenly after a power cut, accidental impact, or internal hardware failure. Fortunately, many of these issues can be repaired without replacing the entire screen.
The good news is that not every case requires a full panel replacement. Many Samsung TV line issues can be repaired at a fraction of the cost of buying a new television.
Since 2017, our technicians at Wisdom Electronics & Computers have helped hundreds of customers across Pimpri-Chinchwad and Pune resolve Samsung TV screen line problems, from minor ribbon cable faults to complex display issues.
This guide explains exactly what causes lines on a Samsung television screen, how to troubleshoot the problem at home, and what professional repair involves.
Quick Answer
Samsung TV screen lines are usually caused by a loose ribbon cable, a faulty T-Con board, failing backlight strips, or a damaged display panel. Most line issues can be repaired without replacing the entire screen. A professional diagnosis helps identify the exact cause and keeps repair costs lower.
- Quick Answer
- What Causes Lines on a Samsung TV Screen?
- Samsung TV Vertical Lines vs Horizontal Lines — What's the Difference?
- Samsung TV Lines on Screen — Troubleshooting Steps at Home
- Samsung TV Screen Issue — Repair Cost in Pimpri-Chinchwad, Pune
- Is Your Samsung TV Worth Repairing or Is It Time to Replace It?
- Our Samsung TV Line Repair Process in Pimpri-Chinchwad
- Frequently Asked Questions
- Conclusion
What Causes Lines on a Samsung TV Screen?
Lines on a Samsung TV screen are usually caused by one of four things — a loose internal cable, a failing T-Con board, damaged LED backlights, or a cracked display panel. Identifying which one is responsible determines the repair cost and whether the TV is worth fixing.
1. Loose or Damaged Ribbon Cable
Inside every Samsung smart TV, thin ribbon cables connect the main board to the display panel. Over time — or after a minor impact — these cables can loosen or develop micro-tears.
Symptoms:
- One or more vertical lines
- Lines appear and disappear
- Lines change when you press lightly on the frame
- Lines appear after the TV has been moved
This is one of the most affordable fixes — often ₹500–₹2,000 — because no major parts need replacing.
2. Faulty T-Con Board
The T-Con (Timing Control) board manages the image signal sent to the display panel. When it starts failing, lines are one of the first signs.
Symptoms:
- Multiple vertical or horizontal lines
- Half the screen shows lines
- Lines are a solid colour — white, pink, green
- Lines appear immediately when the TV turns on
T-Con board replacement typically costs ₹2,500–₹5,500 in Pimpri-Chinchwad.
3. Failing LED Backlight Strips
When LED backlight strips partially fail, they can create horizontal bands or lines across the screen rather than a fully black display. If your Samsung TV has a completely black screen with sound working, read our guide, “Samsung TV turns on but no picture,” for detailed troubleshooting steps.
Symptoms:
- Horizontal lines or bands of light
- Lines that are brighter or darker than the rest of the screen
- Lines visible only in dark scenes
- Lines appear gradually over weeks
4. Cracked or Damaged Display Panel
Physical impact — even minor — can crack the LCD panel internally without visible external damage. This is the most expensive cause of screen lines.
Symptoms:
- Ink-like spreading from one corner
- Lines that spread over time
- Coloured patches alongside lines
- Visible crack on the screen surface
Panel replacement is expensive — often ₹10,000–₹35,000 — and for older TVs, buying a new television may be more cost-effective.
Samsung TV Vertical Lines vs Horizontal Lines — What’s the Difference?
Not all lines on the display indicate the same problem. Understanding whether your lines are vertical or horizontal can help identify the cause before a technician even arrives.
Vertical Lines on Samsung TV
Vertical lines run from top to bottom of the screen. They are usually:
- White, pink, green, or black in colour
- Consistent in width
- Present from the moment the TV turns on
- Sometimes flickering or changing intensity
Vertical lines most commonly point to a T-Con board fault, loose ribbon cable, or panel damage. A single thin vertical line is often a ribbon cable issue — one of the cheapest repairs available.
Horizontal Lines on Samsung TV
Horizontal lines run across the width of the screen. They may appear as:
- Thin bands across the display
- Thick black bars
- Flickering strips of colour
- Lines that shift position when the TV heats up
Horizontal lines often indicate backlight strip failure, T-Con board issues, or panel damage. If the lines show up only after the TV has been running for 10–15 minutes, overheating inside the TV may be affecting components such as the T-Con board or other internal circuits.
Coloured Lines on the Screen
Pink, green, or red lines usually point to a T-Con board or ribbon cable issue rather than panel damage — which is good news, as these repairs are significantly more affordable than a panel replacement. If your Samsung TV screen is also flickering alongside coloured lines, read our Samsung TV screen flickering repair guide.
Samsung TV Display Lines — Is It the Panel or Something Else?
This is the most important question before spending money on repairs. Here is a simple way to check at home:
Press test:
Gently press different areas of the screen frame (not the screen itself) while the TV is on. If the lines shift, disappear, or change, the problem is likely a loose ribbon cable — not a damaged panel. This is a much cheaper fix.
Flashlight test:
Shine a torch at the screen in a dark room. If you can see the picture behind the lines, the panel is likely intact, and the issue is with a backlight or T-Con board.
If pressing the frame changes nothing and lines cover a large portion of the screen from the very first moment the TV turns on, the panel may be damaged.
Samsung TV Lines on Screen — Troubleshooting Steps at Home
Before calling a technician, try these steps:
Step 1 — Restart the TV
Unplug the TV completely for 60 seconds. Press and hold the physical power button for 30 seconds. Plug back in and switch on. Software glitches occasionally cause temporary lines.
Step 2 — Check the HDMI Cable
Disconnect all HDMI cables. If lines disappear when no device is connected, the issue may be with the connected device, not the TV.
Step 3 — Try a Different Input Source
Switch between HDMI 1, HDMI 2, and TV input. If lines appear on one source but not another, the external device is likely responsible.
Step 4 — Update the Firmware
Open your TV’s Settings menu, select Support, and then check Software Update to install any available firmware updates. Outdated firmware occasionally causes display glitches that look like hardware faults.
Step 5 — Factory Reset
Settings → General → Reset. This clears software errors. Note: this erases saved apps and Wi-Fi settings.
If lines remain after all five steps, the issue is hardware-related and requires professional diagnosis.
Why Do Samsung TV Lines Appear After a Power Cut?
A sudden power cut or voltage fluctuation can sometimes cause vertical or horizontal lines to appear on your Samsung TV. While many people assume the screen has been permanently damaged, the actual cause is often a hardware component affected by the electrical surge rather than the display panel itself.
Power interruptions can damage the T-Con board, main board, or, in some cases, loosen signal communication between internal components. If the lines appeared immediately after a power outage, first unplug the TV for about one minute and restart it. Also, check whether the lines appear on all input sources or only on a specific HDMI device.
If the lines remain after restarting the TV, the issue is likely hardware-related and should be professionally diagnosed. From our experience repairing Samsung TVs across Pimpri-Chinchwad, many line-related issues that occur after power cuts are resolved by repairing or replacing the T-Con board instead of replacing the entire display panel.
Tip: To reduce the risk of damage from future power cuts, use a good-quality surge protector or voltage stabilizer, especially in areas with frequent voltage fluctuations.
Samsung TV Screen Issue — Repair Cost in Pimpri-Chinchwad, Pune
| Problem | Estimated Repair Cost | Typical Repair Time |
|---|---|---|
| Loose Ribbon Cable | ₹500 – ₹2,000 | 30–60 minutes |
| T-Con Board Replacement | ₹2,500 – ₹5,500 | 1–2 hours |
| LED Backlight Strip Repair | ₹1,500 – ₹4,000 | 2–4 hours |
| Main Board Repair | ₹3,000 – ₹7,000 | 2–5 hours |
| Display Panel Replacement | ₹10,000 – ₹35,000+ | 1–3 days (depending on part availability) |
All costs are estimates. The final repair cost is confirmed after a free diagnosis at your home in Pimpri-Chinchwad.
Note: Repair costs are approximate and may vary depending on your Samsung TV model, screen size, and the exact fault. We provide a free doorstep diagnosis in Pimpri-Chinchwad and Pune before confirming the final repair cost.
| Symptom | Possible Cause |
| Vertical Line | Ribbon Cable |
| Horizontal Line | Backlight |
| Green Line | T-Con |
| Multiple Lines | Panel |
Samsung TV Screen Lines — What NOT To Do
We’ve seen customers turn a simple ribbon cable issue into an expensive panel repair by pressing directly on the screen or attempting to open the TV without proper tools.
Many Samsung TV owners accidentally make the problem worse while trying to fix it at home. Avoid these common mistakes:
Do not press the screen directly.
Applying pressure to the LCD or OLED panel can crack internal layers that are not visible from outside, turning a ₹3,000 repair into a ₹20,000 panel replacement.
Do not repeatedly switch the TV on and off.
Frequent power cycling stresses the power supply board and T-Con board, especially if a component is already failing.
Do not open the TV back panel without experience.
Modern Samsung TVs contain delicate ribbon cables and connectors. Disconnecting them incorrectly can cause permanent damage. One wrong move can damage the panel itself.
Do not ignore lines that are spreading.
A single line that spreads to five lines over a week indicates a worsening T-Con board or panel issue. Early repair is always cheaper than delayed repair.
Do not assume the panel is damaged.
Most customers who call us expecting a panel replacement end up needing a T-Con board or ribbon cable repair — costing 80–90% less than they expected.
If your Samsung TV screen has gone completely black, our Samsung TV black screen repair guide covers all causes and solutions in detail.
Is Your Samsung TV Worth Repairing or Is It Time to Replace It?
If the lines are caused by a ribbon cable, T-Con board, or backlight issue, repair almost always makes financial sense — especially for TVs under 7 years old.
Repair makes sense when:
- Only one component has failed
- TV is less than 7 years old
- Repair cost is less than 40% of the new TV price
- Lines appeared suddenly without physical impact
Replacement may be better when:
- Display panel is cracked or severely damaged
- Multiple components have failed
- TV is more than 8–10 years old
- Repair cost exceeds ₹15,000–₹20,000 for an older model
At Wisdom Electronics & Computers, we always give you an honest assessment after diagnosis — we only recommend repair when it genuinely makes financial sense for you. For professional Samsung TV repair in Pimpri-Chinchwad, visit our Samsung TV repair service page.
Samsung TV Models That Commonly Develop Screen Lines
We see screen line issues frequently in:
- Samsung Crystal 4K UHD series (UA43, UA50, UA55)
- Samsung Neo QLED (QN85, QN90 series)
- Samsung Smart TV Tizen models
- Samsung The Frame TV
- Samsung QLED Q60, Q70, Q80 series
- Older Samsung Full HD LED models (UA32, UA40, UA43)
The troubleshooting steps and repair process are similar across most Samsung models.
Our Samsung TV Line Repair Process in Pimpri-Chinchwad
Step 1 — Book a Home Visit
Call or WhatsApp Wisdom Electronics at +91 9765536767. Describe the lines on your Samsung TV — whether they are vertical, horizontal, coloured, or full-screen.
Step 2 — Same-Day Technician Visit
Our technician arrives at your home in Pimpri-Chinchwad, Kalewadi, Wakad, Chinchwad, Baner, Hinjewadi, or nearby areas within 2–4 hours.
Step 3 — Free Diagnosis
We inspect the TV thoroughly — checking ribbon cables, T-Con board, backlight strips, and panel condition. Diagnosis is completely free.
Step 4 — Transparent Quote
Before any repair begins, we explain exactly what is causing the lines and give you a clear price. No hidden charges.
Step 5 — Repair with Genuine Parts
All repairs use genuine Samsung-compatible parts. Most T-Con board and ribbon cable repairs are completed the same day at your home.
Step 6 — 1-Year Warranty
Every repair comes with a 1-year warranty covering both parts and labour.
Areas We Serve for Samsung TV Line Repair in Pune
We repair Samsung TVs with screen line issues across:
Kalewadi, Wakad, Pimple Saudagar, Chinchwad, Akurdi, Nigdi, Moshi, Chikhali, Ravet, Baner, Hinjewadi, Aundh, Pimple Nilakh, Sangvi, Bhosari, and all areas of Pimpri-Chinchwad (PCMC).
Common Questions Customers Ask Before Booking Samsung TV Repair
“The lines appeared after I moved my TV — is it serious?”
Moving a television can loosen internal ribbon cables, especially in older models. This is usually a minor, affordable repair. Call us before assuming the worst.
Why are lines appearing on only one half of my Samsung TV screen?
Half-screen lines almost always point to the T-Con board. It controls the left and right halves of the display separately. When one side of the T-Con fails, lines appear on only that half.
My Samsung TV started showing lines after a power outage. Can it still be repaired?
Yes. A sudden power cut can corrupt software settings or stress the power supply board, sometimes causing lines. A soft reset or power supply repair often resolves this.
My TV is 5 years old with lines — is it worth repairing?
Almost certainly yes. A 5-year-old Samsung TV has a significant remaining lifespan. A T-Con board or ribbon cable repair costing ₹2,000–₹5,000 makes far more sense than spending ₹30,000–₹60,000 on a new television.
Do you offer doorstep Samsung TV line repair services in Wakad?
Yes — we serve all of Pimpri-Chinchwad, including Wakad, Kalewadi, Chinchwad, Akurdi, Baner, Hinjewadi, Nigdi, and surrounding areas. Same-day doorstep service available.
Samsung TV Screen Has Lines — Real Repair Examples from Pimpri-Chinchwad
Case 1 — Single Green Vertical Line, Wakad
A customer in Wakad called us about a single green vertical line on their Samsung 55-inch Crystal UHD TV. After diagnosis, we found a partially disconnected ribbon cable. Repair time: 45 minutes. Cost: ₹1,200. TV has been working perfectly since.
Case 2 — Multiple Horizontal Lines After Power Cut, Chinchwad
Following a power outage in Chinchwad, a Samsung QLED TV developed multiple horizontal lines across the bottom third of the screen. Diagnosis confirmed a T-Con board failure caused by a voltage spike. New T-Con board installed the same day. Cost: ₹4,200. 1-year warranty provided.
Case 3 — Half Screen Lines, Hinjewadi
A customer in Hinjewadi reported that the right half of their Samsung Smart TV was showing pink vertical lines. T-Con board replacement resolved the issue completely. Cost: ₹3,800. Repaired within 3 hours of booking.
Why Pimpri-Chinchwad Families Trust Wisdom Electronics
- 17+ years of experience — including 17 years at Sony Authorised Service Centre
- 1,000+ Samsung TVs repaired since 2017
- Free diagnosis before any repair charge
- Genuine Samsung-compatible parts only
- Same-day doorstep service across PCMC
- 1-year warranty on all repairs
- Honest assessment — we tell you if repair is not worth it
Frequently Asked Questions
A loose ribbon cable, a faulty T-Con board, or a damaged display panel most commonly cause vertical lines on a Samsung TV. A free diagnosis at your home in Pimpri-Chinchwad can identify the exact cause before any repair begins.
Yes — in many cases. When the problem is linked to a loose ribbon cable or a faulty T-Con board, the TV can usually be repaired without replacing the display panel. In most cases, the repair costs range from ₹500 to ₹5,500, depending on the fault. Only physical panel damage requires a full replacement.
The repair cost depends on the faulty component. A simple ribbon cable repair may cost around ₹500, while replacing a faulty T-Con board typically costs ₹2,500–₹5,500. Display panel replacement can cost ₹10,000–₹35,000+ depending on the TV model and screen size. We provide a free doorstep diagnosis before confirming the final repair cost.
Not always. A single vertical line is often caused by a loose ribbon cable or a faulty T-Con board, both of which are usually repairable. However, if the line starts spreading or is accompanied by coloured patches or a cracked screen, it may indicate panel damage. Early diagnosis can help prevent a more expensive repair.
Pressing the TV frame may temporarily change or reduce the lines if a loose ribbon cable is causing the issue. However, this is not a permanent solution and may even make the problem worse if excessive pressure is applied. A professional repair is the safest way to resolve the issue.
Most ribbon cable and T-Con board repairs are completed the same day at your home in Pimpri-Chinchwad within 2–3 hours.
Yes — we repair all Samsung models, including QLED, Neo QLED, Crystal UHD, Smart TV, and older LED models across Pune and Pimpri-Chinchwad.
If the TV is under 7 years old and the panel is not cracked, repair is almost always worth it. A T-Con board repair saves ₹20,000–₹60,000 compared to buying a new Samsung TV of similar size.
Sometimes. If the lines are caused by a software glitch or outdated firmware, updating your Samsung TV may resolve the issue. However, if the problem is related to the T-Con board, ribbon cable, backlight, or display panel, a software update will not fix it.
A factory reset can help if the lines are caused by a temporary software issue. If the lines remain after resetting the TV, the problem is likely hardware-related and should be diagnosed by a qualified technician.
People Also Ask
1. Why does my Samsung TV have coloured lines?
Coloured lines such as pink, green, or white — on a Samsung TV usually indicate a T-Con board or ribbon cable issue. These are repairable components that cost ₹500–₹5,500 to fix in Pimpri-Chinchwad.
Yes — in most cases. Unless the display panel itself is physically cracked, lines caused by the T-Con board, ribbon cable or backlight issues are fully repairable at a fraction of the cost of a new TV.
Signs of panel damage include ink-like spreading from one corner, lines that spread rapidly, coloured patches, or a visible crack. A T-Con or ribbon cable issue — which is far more common — does not cause spreading damage.
Conclusion
Lines on a Samsung TV screen do not always mean the television is beyond repair. In most cases — whether vertical lines, horizontal bands, or coloured streaks — the cause is a repairable component like a ribbon cable, T-Con board, or backlight strip.
If your Samsung TV is showing lines in Pimpri-Chinchwad or anywhere across PCMC, Wisdom Electronics & Computers offers free doorstep diagnosis, same-day repair using genuine parts, and a 1-year warranty on every job.
Need a Samsung TV repair expert in Pimpri-Chinchwad? Contact Wisdom Electronics & Computers today for a free doorstep diagnosis, transparent pricing, and same-day repair service. Call or WhatsApp us at +91 9765536767.