Power and LED Driver Board for Sony TVs: Combined Repair Service in Nairobi

Power and LED Driver Board for Sony TVs: Combined Repair Service in Nairobi

Many Sony televisions integrate the power supply and LED backlight driver onto a single assembly, the power and LED driver board, and when it fails, the television can show a confusing mix of dead-screen and start-up symptoms. Pro-Logic Technologies on Luthuli Avenue has the diagnostic depth to repair these combined boards efficiently and economically.

Understanding the Combined Power and LED Driver Board

To save space and cost, many Sony chassis merge two functions into one board: the standby and main power supply stages, and the LED backlight driver stage that feeds the strips behind the panel. The combined board first rectifies and switches the mains into the logic and audio rails, then uses boost converter stages to generate the elevated voltage that drives the LED strings, all under the brightness commands of the main board. Integration makes the board efficient but concentrates risk: a surge on the mains side can kill the logic rails, the LED boost stages, or both, and a failure in one section can trigger protection circuits that shut the entire television down. Diagnosing a combined board demands that the technician test each rail and each LED output independently before concluding whether a component repair or full board replacement is the economical route. That is exactly the discipline our workshop applies.

Signs of a Faulty Sony Power and LED Driver Board

1. Completely dead television with no standby light. The primary power stages have failed.
2. Standby light on, but the screen stays black. Standby survives while the LED boost stage has died.
3. Picture flashes briefly at start-up, then goes dark. The LED drive collapses under load.
4. Flickering, pulsing, or dim picture. Unstable regulation on the LED output stages.
5. Television shuts down a few seconds after switch-on. Protection circuits detecting overcurrent.
6. Humming, clicking, or a burning smell. Physical component failure requiring immediate attention.

Our Repair Process for Combined Boards

At Pro-Logic Technologies, Kangari Building, combined boards receive systematic diagnosis. We test every logic rail, the standby supply, and each LED output under load, then confirm the health of the LED strings themselves, because a shorted strip can imitate a driver failure and vice versa. You receive a written quotation before any work begins. In most cases the board is restored at component level: we replace failed capacitors, boost MOSFETs, driver ICs, rectifiers, and protection components with quality parts matched to original specifications. Where catastrophic damage makes replacement necessary, we supply genuine and compatible Sony power and LED driver boards matched to your model. Most repairs are completed within one working day, every television is load-tested and soak-tested before collection, and all work is covered by our service warranty.

Why Nairobi Chooses Pro-Logic Technologies

Our Luthuli Avenue workshop combines the district's decades of electronics heritage with modern board-level repair capability, serving walk-in customers from the CBD and referrals from every county. We repair Sony alongside Samsung, LG, TCL, Hisense, Philips, and all major brands, our quotations are written and honest, and our parts network is fast. Do not attempt these repairs yourself; the board retains dangerous voltages after disconnection. Call 0723 763 173 or 0101 763 173 instead.

FAQs

1. How much does a Sony power and LED driver board repair cost in Nairobi?
Component-level repairs of the failed section are usually far cheaper than full board replacement. Exact pricing depends on which stages have failed. We provide a written quotation after diagnosis, with the diagnostic fee waived when you proceed.

2. How long does a combined board repair take?
Most repairs are completed within one working day. Special-order replacement boards for uncommon models may take two to three days, and we always communicate the timeline upfront.

3. Can a faulty LED strip imitate a driver board failure?
Yes. A shorted LED string trips the driver's protection circuits, producing blackout symptoms identical to a driver fault. We test the strings and the board separately so you only pay for what has actually failed.

4. What causes power and LED driver boards to fail?
Power surges, lightning, unstable mains voltage, capacitor aging, and heat stress are the leading causes we see in Nairobi. A quality surge protector or stabilizer prevents most of them.

5. Do you offer a warranty on combined board repairs?
Yes. Pro-Logic Technologies provides a service warranty on workmanship and installed parts for every power and LED driver board repair and replacement. Visit Kangari Building, Luthuli Avenue, or call 0723 763 173.