Sony TV Screen Lines, Flickering, or Wrong Colors? Here’s What’s Actually Wrong (Vizag Guide)
A Sony TV that suddenly shows lines across the screen, flickers on and off, or displays washed-out colors is one of the most confusing problems for owners — because the TV still “works,” it just doesn’t look right. Below is a breakdown of what usually causes each symptom, what you can check yourself, and what a repair typically costs in Visakhapatnam.
Why does my Sony TV screen have horizontal or vertical lines?
Lines on screen almost always point to a T-Con board or panel connector issue, not the main panel itself. The T-Con (timing control) board sends the signal that tells each pixel row what to display. When it’s damaged — often from a power surge — the panel can’t render rows correctly, showing colored or black lines.
- Vertical lines: usually a loose or damaged ribbon cable connecting the T-Con board to the panel.
- Horizontal lines: more often a T-Con board fault or a failing panel driver IC.
Both are repairable in most cases without replacing the full screen, unless the panel itself has physical damage.
Why does my Sony TV screen flicker on and off?
Flickering has three common causes, and the fix depends on when it happens:
- Flickers only at startup, then stabilizes — usually a backlight driver issue warming up. Common in TVs over 4–5 years old.
- Flickers constantly, gets worse over time — typically a failing capacitor on the power supply board.
- Flickers only with certain HDMI sources (set-top box, gaming console) — this is often a cable or HDMI port issue, not the TV itself. Try a different HDMI cable and port before booking a repair.
Why do colors look wrong, faded, or have a strange tint?
- Overall pink, green, or purple tint: often a loose panel connector or a failing color driver IC.
- Colors look washed out or dull: check Picture Mode in settings first — “Vivid” or “Standard” mode accidentally changed can cause this. If settings are correct, it may be backlight degradation affecting color accuracy.
- One half of the screen looks different from the other: usually a panel or connector fault, not a settings issue — this needs a technician.
Quick checks before booking a technician
- Try a different HDMI cable and source device to rule out an external cause.
- Reset Picture Mode to “Standard” or “Normal” in TV settings.
- Check if the issue appears on all inputs (TV tuner, HDMI, apps) or just one — this narrows down TV-side vs. source-side faults.
- Note whether the fault is constant or appears only at certain times (startup, after hours of use, when TV is warm) — this detail helps a technician diagnose faster over the phone.
If the issue persists across all sources, it’s a hardware fault inside the TV and needs professional inspection.
Estimated Repair Costs in Vizag
| Issue | Likely Cause | Estimated Cost |
|---|---|---|
| Vertical/horizontal lines | T-Con board or ribbon cable | ₹1,500 – ₹4,000 |
| Flickering at startup | Backlight driver | ₹1,500 – ₹3,500 |
| Constant flickering | Power supply capacitors | ₹1,800 – ₹4,500 |
| Color tint / faded colors | Panel connector or driver IC | ₹1,200 – ₹3,000 |
| Split-screen color fault | Panel fault | Depends on inspection |
Final cost depends on your TV’s model and size — we always inspect and quote before any repair begins, so there are no surprises.
Frequently Asked Questions
Can screen lines be fixed without replacing the whole screen? In most cases, yes. Lines are usually caused by the T-Con board or connecting cable, both of which are far cheaper to replace than the panel itself. Full panel replacement is only needed if the panel is physically cracked or damaged.
Is flickering dangerous or a fire risk? Constant flickering linked to a power supply fault should not be ignored — faulty capacitors can worsen over time and damage other components. It’s best to get it inspected rather than keep using the TV as-is.
Will a software update fix color or line issues? No. These are hardware faults, not software issues, so firmware updates will not resolve them. If your issue is Wi-Fi, apps, or freezing instead, that is usually a software problem and different from what’s covered here.
How long does this type of repair take? Most T-Con board, cable, and connector repairs are completed same-day. Panel-level repairs may take 1–2 days depending on part availability.
Do you inspect before quoting a price? Yes. We diagnose the exact cause first and share the cost with you before starting any repair — nothing is done without your confirmation.
Areas We Serve in Vizag
Seethammadhara, MVP Colony, Madhurawada, Gajuwaka, Dwaraka Nagar, Akkayyapalem, NAD Junction, Gopalapatnam, Arilova, Rushikonda, PM Palem, and surrounding areas across Visakhapatnam.
Get Your Sony TV Inspected Today
If your Sony TV has screen lines, flickering, or color problems, don’t keep using it — these faults can worsen with time. We offer doorstep diagnosis across Vizag with transparent pricing shared before any repair begins.
📞 Call or WhatsApp: +91 95507 47423
