Televisions have become an essential part of every household, especially with the rise of Smart TVs, streaming services, and high-quality LED displays. However, just like any electronic device, TVs can develop issues over time. Whether it’s a display problem, sound issue, or connectivity error, knowing the root cause can help you make better repair decisions.
In this blog, we explore the top 10 most common TV problems and explain how professional services like B. N. Power Systems diagnose and fix them.
1. No Picture or Black Screen
One of the most frequent complaints from customers is that the TV turns on, but there is no picture. This problem is usually related to:
- Backlight failure
- Damaged display panel
- Power supply issues
- Loose internal cables
Technicians inspect the LED strip, SMPS board, and T-Con board to diagnose the fault accurately.
2. No Sound or Distorted Audio
Smart TVs often suffer from audio problems. Reasons include:
- Damaged speakers
- Loose audio IC
- Firmware issues
- Incorrect audio output settings
A professional TV technician ensures both software and hardware are checked properly.
3. Lines on the Screen
Vertical or horizontal lines appear due to:
- Faulty panel
- Damaged T-Con board
- Loose internal cable ribbon
Replacing the affected components fixes the issue.
4. TV Not Turning On
This occurs when:
- The SMPS board fails
- The motherboard is damaged
- There are power fluctuations
A complete power diagnosis is required to restore functionality.
5. Flickering Screen
Flickering is caused by:
- Malfunctioning LED backlight
- Loose internal wiring
- Faulty display drivers
Professional repair prevents further damage.
6. Wi-Fi & Connectivity Issues
Smart TVs rely on internet connectivity. Software glitches, outdated firmware, or hardware IC faults cause connectivity failures.
7. Remote Not Working
This may be due to:
- IR sensor failure
- Software mismatch
- Receiver board issues
Technicians test and replace faulty sensors.
8. Apps Not Loading
Smart TV systems slow down due to:
- Low memory
- Outdated firmware
- Corrupt app cache
A software refresh or update resolves this.
9. Color Patches or Shadow on Screen
Caused by:
- Panel fault
- LED failure
- Pressure marks
Panel repair or replacement may be required.
10. Sound But No Picture
This is a classic symptom of backlight failure, requiring LED strip replacement.
Professional repair ensures long-lasting results. B. N. Power Systems offers expert diagnosis and genuine parts for all brands including Samsung, LG, Sony, MI, and more.
