Reliable TV Repair in Nairobi | Refitec Experts (0704843613)
A flickering TV screen can be distracting, annoying, and sometimes a sign of deeper electronic failure. Whether you’re watching your favorite show, gaming, or streaming online content, screen flickering interferes with your viewing experience. Understanding what causes TV screen flickering and how to fix it is crucial for both short-term convenience and long-term TV health.
At Refitec Electronics Repair (📞 0704843613 | 🌐 refitec.co.ke), we specialize in diagnosing and repairing all types of flickering issues in LED, LCD, OLED, Plasma, and Smart TVs. Let’s dive into the top causes of flickering screens, the solutions, and how Refitec can help restore your screen to its optimal state.
1. Loose or Damaged HDMI/AV Cables
One of the most common causes of TV screen flickering is a loose or damaged HDMI, AV, or component cable. If these cables are not properly connected or have internal wire breaks, the signal transmitted to the screen becomes unstable, leading to flickering images.
Solution: Start by turning off the TV and checking all input cables. Reseat or replace the HDMI cable with a high-quality one. Avoid cheap or overly long cables as they often degrade signal quality. If your flickering persists, it might be time for a more thorough inspection.
Refitec Tip: Refitec technicians can test all video ports and connectors using specialized equipment to identify and replace faulty inputs.
2. Backlight Failure
LED and LCD TVs rely on backlight systems to illuminate the display. If the backlight is failing—due to worn-out LED strips or voltage inconsistencies—you may notice constant flickering, especially in dark scenes.
Solution: Repair or replacement of the backlight module is necessary. In some cases, simply replacing a few faulty LED strips is sufficient; in others, the full backlight panel needs to be swapped.
Refitec Expertise: At Refitec, we provide backlight repair and LED strip replacement services, restoring brightness and flicker-free viewing without needing to replace the whole screen.
3. Refresh Rate Mismatch
TVs operate at certain refresh rates—commonly 60Hz, 120Hz, or even 240Hz. If there’s a mismatch between the refresh rate of the TV and the source (e.g., gaming console, Blu-ray player), flickering can occur due to frame synchronization issues.
Solution: Adjust the output refresh rate from the source device to match the native refresh rate of your TV. This is often done via the device settings.
Refitec Support: Our technicians can assist in configuring both TV and external device settings to ensure they work harmoniously.
4. Overheating Components
Electronics generate heat, and over time, dust buildup or poor ventilation can cause components such as the T-con board, power supply, or mainboard to overheat. Flickering may appear after the TV has been running for a while, indicating thermal stress.
Solution: Clean the internal components and improve ventilation. Thermal paste reapplication or cooling fan installation may be necessary in severe cases.
Refitec Solution: We offer deep internal cleaning, thermal diagnosis, and component-level repair to address overheating-related screen flickering.
5. Faulty Power Supply Board
A flickering screen may be a symptom of a failing power supply board, especially if accompanied by random shutdowns or dimming. The capacitors on the power board may degrade over time, causing inconsistent power delivery to the screen.
Solution: Replace the damaged capacitors or the entire power supply board if needed.
Refitec Diagnostics: We conduct full power board testing and capacitor replacement using high-precision tools for safe and durable repair.
6. Inverter Board Failure (CCFL TVs)
Older LCD TVs use CCFL backlights, which depend on inverter boards to supply power. A failing inverter board can cause the backlight to flicker, dim, or even fail completely.
Solution: Replace the inverter board or switch to LED backlight conversion (if applicable).
Refitec Services: We provide inverter board replacement and CCFL-to-LED upgrades, extending your TV’s life without needing a full replacement.
7. Software or Firmware Bugs
Modern Smart TVs run on complex software systems (Android TV, Tizen, webOS, etc.). A software glitch or outdated firmware can cause UI flickering, especially on menus, app transitions, or video playback.
Solution: Update your TV firmware from the manufacturer’s website or through the settings menu. If the flicker started after an update, a factory reset might help.
Refitec Help: We troubleshoot and reinstall TV firmware or restore factory software for brands like Samsung, LG, Hisense, TCL, and Sony.
8. Faulty T-Con Board (Timing Control Board)
The T-Con board manages pixel and frame data from the main board to the screen. If it malfunctions, screen flickering, lines, and image distortions can occur, particularly in high-resolution panels.
Solution: Replace the T-Con board or reflow solder joints if heat damage is minimal.
Refitec Capability: We stock original and compatible T-Con boards and offer rework services to fix intermittent faults without full replacements.
9. Interference from Nearby Devices
Electromagnetic interference from wireless routers, nearby speakers, or even fluorescent lights can cause screen flicker, especially in older TV models.
Solution: Isolate the TV from other electronics. Try plugging the TV into a different power socket on a separate circuit.
Refitec Insight: We identify environmental interference issues using EMF diagnostic tools and advise on safe TV placement and grounding.
10. Dirty or Loose Ribbon Cables Inside the TV
Inside every flat-screen TV are delicate ribbon cables that connect various boards. If these cables loosen, get dirty, or corrode, flickering and ghosting can appear intermittently.
Solution: Re-seat and clean internal ribbon cables. In cases of corrosion or damage, replacement is required.
Refitec Care: Our technicians open, clean, and test internal cable connections, restoring signal integrity inside your TV.
11. Panel Damage or Pixel Drive Issues
Sometimes the actual LCD or OLED panel is the problem—either due to internal short circuits, water damage, or manufacturer defects in the pixel-driving ICs.
Solution: Minor pixel flickers may be fixable with IC repairs. For widespread panel faults, replacement is the only option.
Refitec Approach: We assess whether panel replacement is cost-effective compared to a new TV and offer panel change or IC rework services.
12. Voltage Fluctuations from Power Supply
Kenya’s electricity supply can sometimes fluctuate, leading to voltage surges or drops that cause screen flickering or distortion. Sensitive TVs are especially vulnerable to such inconsistency.
Solution: Use voltage stabilizers or surge protectors to regulate power flow to your TV.
Refitec Advice: We recommend and supply tested surge protectors and stabilizers, along with power circuit inspection for safer, flicker-free performance.
13. Smart TV App Conflicts
Certain Smart TV apps, especially from third-party sources, may not be optimized and can cause the screen to flash or flicker when launched.
Solution: Uninstall the app, clear cache, or revert to a previous version. Always use apps from the TV’s official app store.
Refitec Digital Help: We help customers troubleshoot Smart TV apps, resolve conflicts, and configure TV operating systems for stable performance.
14. Improper Picture Settings
Sometimes, flickering is simply due to incorrect TV settings—such as Motion Smoothing, Dynamic Contrast, or Auto Light Sensor features interfering with image processing.
Solution: Reset the picture settings to default or manually disable dynamic picture features.
Refitec Guidance: Our technicians guide clients through best practice display settings for flicker-free images suited to different lighting conditions.
15. External Source Device Problems
A flickering screen may not be your TV’s fault at all—it might be from the connected DVD player, decoder, gaming console, or PC. These devices might have faulty HDMI ports or graphic output issues.
Solution: Test your TV with another device. If the flickering disappears, replace or repair the source device.
Refitec Extended Service: We repair not just TVs, but also set-top boxes, decoders, and gaming consoles that could be causing flickering issues via faulty outputs.
Why Choose Refitec for TV Flickering Repair in Nairobi?
Refitec is a trusted name in Nairobi and surrounding towns for professional, reliable, and affordable TV repairs. Our skilled technicians are trained to diagnose every type of flickering issue across all major TV brands, including:
- Samsung
- LG
- Sony
- Hisense
- TCL
- Skyworth
- Vitron
- Panasonic
- Sharp
- Philips
Whether you’re in Westlands, Kilimani, Kasarani, Parklands, Donholm, Lavington, Embakasi, or Syokimau, our technicians can come to your home for fast diagnosis and repair.
📞 Contact Refitec Today
Phone: 0704843613
Website: www.refitec.co.ke
Service Areas: Nairobi, Thika, Kiambu, Ruaka, Ongata Rongai, Kitengela, Ruiru, and all surrounding estates
Don’t let a flickering screen ruin your entertainment. Whether it’s a small cable issue or a major component fault, Refitec has the expertise and tools to fix it right the first time.
