My LG TV Is Black but I Can Still Hear Sound — What Should I Do?
My LG TV Is Black but I Can Still Hear Sound — What Should I Do? If your LG TV plays sound but shows no picture, you’re facing one of the most common issues among LED and Smart TVs. You can hear everything clearly, but the screen stays dark. This usually means the backlight, display board, or signal processing system has stopped working correctly. At Veetechno Electronics, we specialize in diagnosing and repairing all LG TV display problems across Hyderabad. This guide will help you understand the causes, what checks you can safely do at home, and when you should call a technician. Common Reasons Why LG TVs Have Sound but No Picture 1. Backlight Failure The most frequent reason behind a black screen with sound is backlight failure. The backlight illuminates the display, and when it burns out, your TV may seem off even though it’s running normally. How to check: Turn off the lights in your room. Shine a flashlight closely at the screen. If you see a faint image, your backlight is likely defective. Backlight replacement requires professional tools and should only be handled by a trained technician. 2. Damaged T-CON Board The Timing Control (T-CON) board sends visual signals from the main board to the screen. If it fails, you’ll hear sound but see a blank display. Signs of a faulty T-CON board: White, gray, or flickering screen before going black No visible image at all Sound working perfectly A technician can test this board and replace it if needed. 3. Loose Internal Cables Sometimes the internal ribbon cables connecting the display panel loosen over time, especially after a fall or vibration. This can interrupt the signal between the motherboard and the screen. Opening the TV to fix this on your own can cause permanent damage, so it’s best to call an expert. 4. Power Supply Board Issues If part of the power supply board fails, it may deliver enough voltage for sound but not for the display. Burnt capacitors or power fluctuations are usually the reason. Veetechno Electronics technicians repair or replace only the affected components, ensuring cost-effective service. 5. Faulty Display Panel If your TV suffered a fall, moisture exposure, or panel burn, the LED display may be damaged. In such cases, panel replacement might be required. Before replacing, we always provide a free evaluation to help you decide whether repair or replacement is better for your budget. What You Can Safely Check at Home Before scheduling a service call, perform these safe steps: Disconnect the power and all HDMI devices. Wait one minute, then reconnect and turn on. Check your input source (HDMI1, HDMI2, AV). Use a flashlight test to check for faint images. If the screen remains completely dark, it’s time for professional inspection. When to Call a Professional Technician You should contact a qualified LG TV repair service in Hyderabad if: You can hear sound but the screen is black. The standby light blinks, but no image appears. The display flashes briefly and then goes dark. The TV screen turns black after a few minutes of use. Veetechno Electronics offers doorstep LG TV repair in Hyderabad, providing quick and affordable fixes with genuine LG components. Why Choose Veetechno Electronics Trained technicians for all LG models Same-day home service in Hyderabad Genuine spare parts and service warranty Transparent, affordable pricing Repair for LED, OLED, and Smart LG TVs From power board replacement to backlight repair, we provide full-range TV solutions at your doorstep. FAQs 1. Why does my LG TV have sound but no picture?This typically happens due to backlight failure, a damaged T-CON board, or a faulty power supply. 2. Can an LG TV black screen be repaired?Yes. In most cases, replacing the backlight or circuit board restores full display functionality. 3. How much does it cost to repair an LG TV black screen issue in Hyderabad?Repair costs depend on the model and the part damaged. Veetechno Electronics offers a free inspection and cost estimate before service. 4. Do you offer home service for LG TVs?Yes. We provide doorstep LG TV repair across Hyderabad with warranty support.