Sony TV Has No Picture but Has Sound: Repair in Nairobi

A Sony television that plays sound perfectly but shows no picture occupies a special place in diagnosis: the fault is localized by the symptom itself. For Nairobi residents searching for Sony TV no picture but has sound repair, Pro-Logic Technologies on Luthuli Avenue isolates the failing stage quickly and restores the picture economically.

Understanding This Fault

Sound and picture share the early signal path but separate at the main board, where the finished picture stream departs toward the T-con board, the panel drivers, and the backlight system. When sound survives, the main board, tuner, and audio stages are largely healthy, and the fault lies in the picture chain alone: the T-con board that converts picture data for the panel, the panel driver stages, the ribbon connections, or the backlight that illuminates the image. A simple test distinguishes the major branches: shine a torch at the dark screen in a darkened room; if a faint picture is visible, the backlight has failed; if the screen is truly empty, the drive chain is at fault.

Common Causes and How We Diagnose Them

Backlight failure, either LED strips or the driver board, which leaves the panel unlit and the picture invisible.
A faulty T-con board that stops converting the picture stream, producing a truly black panel.
Loose or damaged panel ribbon cables, interrupting the picture path at a physical connection.
Failed panel driver stages, including source or gate drive faults, that stop the panel responding.
A failed picture output stage on the main board, in which audio processing survives while video output dies.
Firmware faults that disable video rendering while leaving audio services running.

Our Repair Process at Pro-Logic Technologies

At our Kangari Building workshop on Luthuli Avenue, every repair follows a disciplined, transparent sequence. The television first undergoes a structured diagnostic examination, in which our technicians test each board and stage against factory specification to isolate the true cause of the fault, because television symptoms overlap heavily and guesswork is expensive for the customer. You then receive a written quotation with a plain-language explanation before any work is authorized, and there are no hidden charges. Repairs are performed at component level wherever possible, replacing only the failed parts with genuine and compatible Sony components, which keeps costs low and preserves your television's original configuration. Every completed repair is soak-tested under sustained operation, because faults that appear intermittently reveal themselves under load, and only a television that has passed hours of stable testing leaves our workshop. All work is covered by our service warranty.

Why Nairobi Chooses Pro-Logic Technologies on Luthuli Avenue

Luthuli Avenue has anchored Nairobi's electronics trade for decades, and our workshop carries that heritage forward with modern diagnostic equipment, a deep Sony spare parts inventory, and technicians who repair Samsung, LG, TCL, Hisense, Philips, and every major brand daily. That daily breadth across brands sharpens the expertise we apply to every Sony set. Our pricing is written and transparent, our turnaround times are among the fastest in the city, and our advice is always honest: if a repair costs more than your television is worth, we will tell you so plainly, and if the fault lies outside the set, we will say that too and save you the money. Please do not attempt internal repairs yourself; television chassis carry residual voltages, and untrained handling frequently turns a modest board repair into a total loss.

What to Expect at Our Workshop

When you bring your Sony television to our Luthuli Avenue workshop, you can expect a professional experience from the moment you walk through the door. Our reception staff will register your set, note the model number and the symptoms you have observed, and issue a tracking reference so that you can follow the progress of your repair. Diagnosis is conducted on a dedicated bench under the supervision of a senior technician, and we encourage you to describe the circumstances of the fault in your own words, because details such as a recent power cut, a software update, or a house move frequently hold the decisive clue. Once the fault is isolated, we telephone you with the findings and the written quotation, and no work proceeds until you have approved it. If you cannot visit in person, we also accept televisions delivered to Kangari Building, and we can arrange pickup of large screen sizes anywhere within Nairobi for a modest transport fee.

FAQs

I can hear my TV but the screen is black. What is the likely cause?
Most often the backlight system, which is among the most affordable picture repairs available. Our torch test and rail measurements confirm it within minutes, and the majority of these sets leave our workshop the same day. Call 0723 763 173 or 0101 763 173, or email info@televisionrepair.co.ke, and let Pro-Logic Technologies restore your Sony television promptly and professionally.

How much does this Sony TV repair cost in Nairobi?
The cost depends on your television model and the exact component that has failed, which is why we never quote over the phone without diagnosis. Component-level repairs are generally the most affordable route, and full board replacements are quoted by model. We provide a written quotation after diagnosis, and the diagnostic fee is waived when you proceed with the repair.

How long does the repair take?
Most repairs are completed within one working day, and many walk-in customers from the CBD collect their television the same afternoon. Repairs that require special-order parts for less common models may take two to three days, and we always communicate the realistic timeline before work begins.

Do you repair all Sony TV models?
Yes. We service every Sony BRAVIA generation, from the latest OLED, QD-OLED, and Mini LED models through LED LCD, CCFL-era LCD, and legacy plasma sets, using model-specific service documentation and matched genuine and compatible parts.

Do you offer a warranty on this repair?
Yes. Pro-Logic Technologies provides a service warranty covering both workmanship and the parts we install, giving you confidence that the fault has been properly resolved rather than merely masked. For details about your specific fault, call 0723 763 173 or 0101 763 173, or visit us at Kangari Building, Luthuli Avenue, Nairobi.