LED TV Display Lines Problem: Causes, Solutions & Where to Buy Original Spare Parts
Don’t panic — this is a common issue that can often be resolved at home. Whether it's colored bars, flickering lines, or half-screen output, understanding the causes and applying the right fixes can save you money and extend your TV's lifespan.
This blog covers:
- 🔍 Common causes of display lines on LED TVs
- 🛠️ 5 proven ways to fix the issue
- 📦 Why using original spare parts is essential
- 📺 How to identify if your T-Con board is faulty
- 💡 When to repair vs replace your TV
- 🛒 Where to buy tested, brand-compatible spares online
👉 Shop Genuine LED TV Spare Parts at Great Bharat Electronics
🔧 What Causes Display Lines on LED TVs?
- Ribbon Cable Issues: Loose, dusty, or damaged ribbon cables connecting the screen to the T-Con board often lead to screen lines. Watch cable inspection guide
- Faulty T-Con Board: A defective T-Con (Timing Control) board disrupts signal flow and causes flickering lines or blank sections. View T-Con replacement tutorial
- Damaged Display Panel: Cracks or dead zones in the panel often result in fixed lines that won’t go away even after restarting.
- Power Surges or Heat: Voltage fluctuations or overheating may damage ICs on the motherboard or power board.
- Outdated Firmware: Some display issues may result from bugs or outdated software that can be fixed with a system update.
🔍 How to Identify a T-Con Board Issue
If the top or bottom half of your screen is dead, or lines appear only on one side, your T-Con board is likely faulty. Another sign is a black screen with backlight but no image. In such cases, replacing the T-Con board is usually a quick and cost-effective fix.
✅ Watch this step-by-step T-Con board repair tutorial on YouTube
🛠️ 5 Effective Ways to Fix Screen Lines
- ✔️ Restart the TV: Unplug for 2 minutes and power on. A soft reset clears many glitches.
- ✔️ Reseat or Clean Ribbon Cables: Open the TV back panel and gently clean the cable contacts. See how it's done
- ✔️ Replace T-Con Board: If lines persist after cable checks, the board is likely the cause.
- ✔️ Use Only Original Parts: Duplicate parts may damage your TV or reduce performance.
- ✔️ Ask for Expert Help: Not confident? Use free video call support to confirm the issue before ordering parts.
💡 When to Repair vs Replace Your TV
If your TV is less than 5 years old and the panel is intact, repair is usually the better option. Replacing the T-Con board or mainboard is affordable and restores full functionality. Only consider replacing the TV if:
- The display panel is physically cracked or burnt
- Multiple boards are damaged simultaneously
- Repairs exceed 50% of new TV cost
🛒 Where to Buy Original LED TV Spare Parts?
Great Bharat Electronics provides 100% genuine LED TV spare parts compatible with top brands like Samsung, LG, Sony, VU, Mi, Thomson, and more. All items are tested, safely packed, and shipped nationwide.
🔗 Explore Our Spare Parts Collection
- 💯 Verified Original Boards with Warranty
- 🚚 Fast Delivery Across India
- 🧰 Technician-Approved Quality
- 📞 Expert Support via WhatsApp or Video Call
🔚 Final Thoughts
Display lines don’t mean your TV is finished. Most issues — especially those caused by ribbon cables or T-Con boards — are fixable at a low cost. With help from Great Bharat Electronics, you’ll get reliable parts and expert support to complete the repair with confidence.
