When a Sony BRAVIA television fails to boot, freezes on the logo, or loses every smart function at once, the fault usually traces back to the main logic board, the processing heart of the television. For owners searching for a fast, affordable Sony TV main logic board repair in Nairobi, Pro-Logic Technologies on Luthuli Avenue delivers same-day diagnostics, board-level component repair, and full board replacement for every Sony model on the Kenyan market.
What the Main Logic Board Does
The main logic board is the central processing hub of a Sony television. It carries the CPU, memory, and signal processing circuits that run the operating system, decode incoming video and audio, manage the HDMI and USB inputs, drive the Wi-Fi and network functions, and issue instructions to the power supply, T-con board, and audio stages. Every function you experience on screen, from channel tuning to app launching to picture settings, is computed on this board. Because so much depends on it, a single failed regulator, memory chip, or cracked solder joint can disable the entire television, which is why professional diagnosis is essential before any part is replaced.
Signs of a Faulty Sony Main Logic Board
- Stuck on the Sony logo or endless restart loops. Corrupted firmware or failing boot memory is a classic main logic board symptom.
- Black screen with sound present. The board stops sending video to the panel even though the power supply and backlight work normally.
- No sound, distorted sound, or dead HDMI ports. Input and audio processing failures point directly to the logic board.
- Remote control and physical buttons ignored. The board's control circuitry no longer receives or processes commands.
- Wi-Fi, apps, and network functions missing. Smart television failures frequently stem from board-level damage.
- Random freezing, shutdowns, or temperature-dependent faults. Often caused by degraded components or dry solder joints.
Fast Repair and Replacement at Pro-Logic Technologies
Our Luthuli Avenue workshop follows a disciplined, transparent process. First, we run a structured diagnostic to confirm that the main logic board, and not the power supply or T-con board, is the true cause of the fault. You receive a written quotation before any work begins. Where possible, we repair the board at component level, replacing failed regulators, memory chips, and damaged connectors while preserving your original firmware and settings, which keeps costs low. Where a board is beyond economic repair, we supply genuine and compatible Sony main logic boards matched exactly to your model, transfer the firmware where required, and configure the replacement so the television boots exactly as it did from the factory. Most jobs are completed within one working day, and every repair is covered by our service warranty.
Why Nairobi Trusts Pro-Logic Technologies
Luthuli Avenue has been the heart of Nairobi's electronics trade for decades, and our Kangari Building workshop pairs that heritage with modern diagnostic equipment and a deep stock of Sony television spare parts. Our technicians repair Samsung, LG, TCL, Hisense, Philips, and all major brands daily, and our pricing is always honest: if a repair costs more than your television is worth, we will say so plainly. Do not attempt to open your television yourself; internal circuits carry residual current and untrained handling often turns a simple board fix into a total loss.
FAQs
1. How much does a Sony TV main logic board repair cost in Nairobi?
The cost depends on your television model and whether a component-level repair or a full board replacement is required. Component repairs are generally the most affordable option. We provide a written quotation after diagnosis, and the diagnostic fee is waived when you proceed with the repair.
2. How long does a main logic board repair take?
Most repairs and replacements are completed within one working day, and many walk-in customers collect their television the same afternoon. Boards ordered for less common models may take two to three days, and we always give a realistic timeline first.
3. Can a faulty main logic board cause a black screen?
Yes. A black screen with sound is one of the most common symptoms, but the same fault can come from the T-con board, power supply, or backlight, so professional testing is essential before replacing any part.
4. Should I repair or replace the main logic board?
Board-level repair is usually cheaper and preserves your firmware and settings. Full replacement is recommended when the board is physically damaged or beyond economic repair. We assess honestly and recommend the most economical route.
5. Do you offer a warranty on main logic board repairs?
Yes. Pro-Logic Technologies provides a service warranty covering both workmanship and the parts we install, giving you confidence the fault has been resolved rather than masked. Call 0723 763 173 for details.