Is your TV blasting sound but showing a blank screen? This common issue frustrates many Nairobi households, often due to simple fixes or hardware faults. Prologic Technologies, your trusted TV repair experts, offers fast diagnostics and repairs for all brands. (38 words) Prologic Technologies Contact Information Phone: 0723 763173 Email: info@telev…

Need Repair Services in Nairobi? Certified technicians dispatched to you — same day. Why does my TV have sound but no picture?

Is your TV blasting sound but showing a blank screen? This common issue frustrates many Nairobi households, often due to simple fixes or hardware faults. Prologic Technologies, your trusted TV repair experts, offers fast diagnostics and repairs for all brands. (38 words)

Prologic Technologies Contact Information

Common Causes of Sound but No Picture

TVs with audio but no video typically suffer from backlight failure, T-Con board issues, or loose connections. The backlight LEDs, which illuminate the screen, often burn out after 30,000-50,000 hours of use, especially in dusty Kenyan homes. Prologic Technologies technicians frequently diagnose this in Samsung and LG models, where dim or completely dark screens persist despite clear sound output.

Power supply fluctuations in Nairobi can also damage capacitors on the main board, starving the display panel of voltage while audio circuits remain functional. Loose ribbon cables between the T-Con (Timing Controller) board and LCD panel cause intermittent blackouts, worsened by vibrations from poor mounting.

Step-by-Step Troubleshooting

Start by checking external factors before calling experts. Unplug your TV for 5-10 minutes to reset internal capacitors—a soft reset fixes 40% of cases. Test different inputs like HDMI or USB; if picture appears on one, the issue is source-specific.​

Adjust brightness/contrast settings to maximum, as low levels mimic backlight failure. Shine a flashlight on the screen in a dark room—if faint images appear, confirm backlight LEDs need replacement. Avoid opening the TV yourself to prevent warranty voidance or electric shock.

For smart TVs, perform a factory reset via audio menu navigation (hold power + volume buttons). Persistent issues point to hardware, where Prologic Technologies excels with on-site service in areas like Port Reitz and Nyali.​

Services Offered by Prologic Technologies

Prologic Technologies provides comprehensive TV repairs across Nairobi, handling all major brands with 90% same-day turnaround. Their Luthuli Avenue workshop features advanced diagnostics for LED, OLED, and QLED panels.

Service Description Brands Covered Turnaround Time
Service Description Brands Covered Turnaround Time
Backlight LED Replacement Fixes dark screens; uses genuine parts for longevity. Samsung, LG, Hisense, TCL Same-day ​
T-Con Board Repair Restores timing signals for clear images. Sony, Hisense, Skyworth 1-2 days
Main Board Refurbish Repairs power issues affecting display only. All models (LED/OLED/QLED) Same-day ​
Screen Panel Swap Full LCD/LED replacement for cracked or dead panels. Panasonic, Philips, Haier 2-3 days
Software Update & Reset Optimizes smart TV firmware for glitch-free operation. All smart TVs On-site
HDMI/Port Diagnostics Cleans and tests input ports for connection faults. Universal Same-day ​

Why Choose Prologic Technologies?

With expertise in Kenyan power conditions, Prologic offers 6-12 month warranties on parts and labor, plus flexible on-site repairs for minor faults. They service popular local brands like Vitron and Sharp, saving you from costly replacements. Costs start at KSh 2,000 for diagnostics, far below new TV prices.

Prevention Tips for Nairobi Homes

Shield your TV from direct sunlight and power surges using stabilizers—essential amid Kenya Power fluctuations. Dust monthly with a microfiber cloth to extend backlight life. Regular servicing every 2 years prevents escalation.