Sony TV motherboard replacement in Nairobi — Refitec (0704843613, refitec.co.ke)

Executive summary

Sony TV Repair Services in Nairobi | 0704843613

If your Sony TV is showing intermittent power, no picture with a blank LED, random reboots, or other symptoms pointing to electronic failure, the motherboard (main board) is one of the most common and serviceable components. Refitec provides professional motherboard diagnosis, repair and full replacement services in Nairobi. This article explains the symptoms that indicate a motherboard fault, the causes and diagnostic steps, what a replacement involves, availability of spare parts, cost factors, warranty and aftercare, and practical tips to prevent problems. It also contains an extensive list of Nairobi’s main suburbs, estates and principal roads so potential customers know whether Refitec serves their area.

Contact: Refitec — 070 484 3613 | Website: refitec.co.ke

Why the motherboard matters (and why replacement is a common solution)

The motherboard (also called the main board or main PCB) is the TV’s brain: it handles signal processing (HDMI, tuner, smart TV UI), powers communication with the power board and T-Con board, runs the OS on smart TVs, and interfaces with inputs/outputs. When a motherboard fails, symptoms can be subtle (random reboots, apps crashing) or dramatic (no power, no backlight control, no picture). Depending on the model, motherboard faults are frequently repairable by replacing damaged components (ICs, capacitors, power regulation elements) or — when the damage is extensive or parts are unavailable — by replacing the whole board. Replacing the motherboard restores original functionality and is often the fastest and most reliable fix.

Common signs that the Sony TV motherboard needs replacement

(Each symptom is explained with likely cause and what the technician will check.)

1. TV powers on but no picture (sound only) — often points to T-con/power/motherboard communication fault; technicians check HDMI/video processing ICs and backlight control lines.
2. No power at all (dead TV) — could be power board or motherboard; a quick multimeter check of voltage rails on the main board isolates which board failed.
3. TV shows boot logo then reboots repeatedly — CPU or firmware/flash memory corruption on the mainboard; may require re-flash or board swap.
4. Random reboots or freezing apps on smart Sony TVs — likely mainboard overheating or failing processor/flash; replacement recommended if repairs aren’t cost-effective.
5. Inputs (HDMI/USB) not working while other features function — port controller or I/O circuitry on mainboard failing.
6. Strange on-screen artifacts, lines or corrupted UI — GPU or video processing IC malfunction on mainboard.
7. TV remote not responding while power and picture are fine — could be board-level input decoding failure.
8. Burnt smell or visible corrosion on mainboard — when irreversible damage is present, replacement is safest.

If you see several of these together, especially burnt components, inconsistent voltages or BIOS/firmware errors, the mainboard is very likely the failing part.

Typical causes of motherboard failure

• Power surges and lightning strikes — transient overvoltage can damage delicate ICs on the board.
• Aging capacitors and components — electrolytic capacitors dry out and lose capacitance, causing instability.
• Overheating — poor ventilation or dust build-up increases operating temperature and shortens component life.
• Moisture/corrosion — spills, humidity or salty air will corrode traces and solder joints.
• Manufacturing defects or aged firmware — sometimes a firmware issue or defective IC causes repeated failures.
• Physical damage — drops, hits or pressure can crack solder joints or damage surface-mount devices.

Diagnostic process used by Refitec

A professional replacement should start with a structured diagnostic routine. Refitec follows these steps:

1. Client intake & symptom checklist — record make/model/year and describe behavior.
2. Visual inspection — look for burnt parts, swollen capacitors, corrosion, loose connectors.
3. Power checks — measure standby and main voltage rails; isolate power vs mainboard faults.
4. Boot/POST observation — look for LED blink codes, boot loops, or error codes on Sony models.
5. Firmware/flash check — verify firmware integrity; attempt safe re-flash when applicable.
6. Component-level checks — test regulators, clock circuits, RAM/flash interface, HDMI controllers.
7. Final decision — attempt repair (replace capacitors/ICs) if economic, otherwise recommend full mainboard replacement with cost/lead time estimate.

This disciplined diagnostic saves money — sometimes a small part replacement gets you months/years of life; in other cases, full replacement gives a more reliable long-term fix.

Motherboard replacement: what to expect (step-by-step)

1. Quote & consent — Refitec will provide a quote after initial diagnosis. Quotes include parts, labour, testing and warranty.
2. Sourcing the board — technicians source a compatible Sony mainboard (original or high-quality replacement).
3. Backing up settings (if possible) — technicians note smart TV settings, network credentials and app logins that might be lost.
4. Safe disassembly — TV unplugged, panel removed in a dust-free workspace; care taken with fragile LVDS/FFC cables and screen.
5. Swap & reassembly — mainboard replaced, connectors reattached, grounding verified.
6. Initial power-up & testing — check boot, inputs (HDMI, USB), audio, network, apps.
7. Burn-in & stability test — run for several hours to ensure no intermittent faults.
8. Final handover — technician explains work done, hands over invoice and warranty details.

Parts availability and sourcing

Refitec maintains an inventory of commonly required Sony mainboards and OEM components when possible. For older or rarer models, boards can be sourced from regional parts suppliers or carefully matched compatible parts. Where an exact OEM is unavailable, Refitec uses tested high-quality replacements or donor boards matched by firmware and connector layout. Customers are always informed if a non-OEM part is used and the warranty terms for such parts. (If you need a specific Sony model check, provide the model number and Refitec can confirm availability: 070 484 3613.)

Cost factors — what affects the price

• Model & screen size — newer smart TVs and large-screen LED/OLED/Bravia models often have more expensive mainboards.
• Original OEM vs compatible board — OEM boards cost more than compatible third-party boards.
• Extent of diagnostics & repairs — component-level repairs vs full replacement.
• Availability/lead time — expedited sourcing may add fees.
• Warranty included — longer warranty terms increase cost slightly.
• In-home callout vs drop-off — on-site repairs add travel/time.

A realistic price-range estimate (indicative only): repairing a minor mainboard fault might be a few thousand KES; full OEM mainboard replacement typically ranges higher depending on model — Refitec gives a firm quote after diagnosis. Call 070 484 3613 for precise pricing.

Quality, warranty and aftercare

Refitec stands behind workmanship with a written warranty on the replaced motherboard and labour (terms vary by part origin — OEM vs compatible). Post-repair testing and burn-in are standard. Refitec also provides guidance on setup, firmware updates and safe usage to reduce the chance of repeat failures.

Preventive maintenance (how to make your Sony TV last longer)

• Use a surge protector / UPS for stability and lightning protection.
• Keep the TV ventilated; avoid enclosed cabinets when the TV is working.
• Clean dust from vents and back periodically with compressed air.
• Avoid humidity and chemical cleaners near circuitry.
• Update firmware through official Sony updates when available.
• Avoid frequent power cycling and unplugging while the TV is performing firmware updates.
• If you notice faint symptoms (slow boot, app crashes), have the TV checked early — small fixes often prevent expensive replacements.

When to repair vs replace the entire TV

• Repair is often cost-effective for mid/large screens (<7–8 years old) and for high-end models.
• Replace if the TV is very old (10+ years), if the replacement cost exceeds ~50–60% of a new set’s price, or if multiple major subsystems are failing (screen + power + mainboard).
  Refitec will advise transparently; often customers with sentimental or high-end Sony sets prefer repair.

Frequently asked questions (FAQ)

Q: How long will a replacement take?
A: After diagnosis, if the board is in stock a same-week turnaround is common. If a part must be sourced, timelines depend on availability. Refitec will give a timeframe at quote.

Q: Are replaced parts genuine Sony?
A: Where possible Refitec uses OEM parts. If an OEM part is unavailable, we source high-quality compatible boards and clearly document warranty terms.

Q: Will I lose my apps and settings?
A: Sometimes. Technicians attempt to preserve settings but recommend noting network and account credentials before service.

Q: Do you offer onsite repair?
A: Yes — for many areas in Nairobi. For board replacement we recommend shop repair (controlled environment) but light diagnostics can be done onsite.

Q: What warranty do you provide?
A: Warranty terms are provided in writing and vary by part origin. Typically labor + parts warranty is offered.

Why choose Refitec for Sony motherboard replacement

• Trained technicians experienced with Sony electronics and Bravia platforms.
• Structured diagnostic workflow that avoids unnecessary replacements.
• Inventory of common Sony spare parts and access to reliable suppliers.
• Written warranty and post-service testing.
• Local Nairobi service and callout options.

Contact: 070 484 3613 — ask for motherboard diagnosis, quote and availability.

Local service coverage — major Nairobi estates, suburbs and principal roads

Below is a comprehensive list of the commonly referenced estates, suburbs and principal roads across Nairobi. This list is practical for SEO targeting and for customers to find Refitec service coverage.

Central Nairobi & City Centre

• Nairobi CBD (Kenyatta Avenue, Moi Avenue, Tom Mboya Street, Haile Selassie Avenue)
• Westlands
• Upper Hill
• Kilimani
• Hurlingham
• Kileleshwa
• Parklands
• Pangani
• Ngara
• Buruburu
• Eastleigh

West & West-North (Greater Westlands / Muthaiga corridor)

• Muthaiga
• Gigiri
• Rosslyn
• Riverside
• Spring Valley
• Kitisuru
• Lavington
• Maziwa
• Mountain View
• Garden Estate

South & South-East Nairobi

• South B
• South C
• Embakasi
• Pipeline Estate
• South C
• Donholm
• Kayole
• Umoja
• Kware
• Mukuru (Mukuru kwa Njenga, Mukuru kwa Reuben)
• Imara Daima
• Industrial Area

East & North-East Nairobi

• Ruai
• Donholm
• Umoja
• Eastleigh (mentioned above)
• Dandora
• Mathare
• Madaraka Estate
• Kasarani
• Roysambu
• Garden Estate (East)
• Mirema
• Mwiki

North & North-East (Thika Road corridor)

• Thika Road / Runda / Roysambu / Kahawa
• Ridgeways
• Githurai
• Juja Road corridor suburbs
• Roysambu
• Garden Estate

South-West & Lang’ata corridor

• Lang’ata
• Karen
• Nairobi National Park adjacent estates
• Karen Country Estate
• Muguga
• South C / South B (already listed)

Western & Outskirts (Kilimani — Westlands corridor)

• Kawangware
• Kibera (and Kibera sub-estates)
• Laini Saba
• Soweto East
• Makina

Suburbs frequently used for real estate / expats

• Runda
• Gigiri
• Rosslyn
• Kileleshwa
• Hurlingham
• Lavington
• Parklands
• Westlands
• Upper Hill

Selected Estates, Estates/Planned Developments and Notable Residential Areas

• Loresho
• Kyuna
• Kitisuru
• Muthaiga
• Runda
• Gigiri
• Karen
• Karen Plains
• Lang’ata Ridge
• Roysambu
• Zimmerman
• Garden Estate
• Githurai
• Thindigua (Kiambu border communities)

Principal Roads, Highways & Major Arteries

• Thika Road (A2) — major corridor to the north-east.
• Mombasa Road / Nairobi–Mombasa Highway (A109) — southeast towards the airport and coast.
• Waiyaki Way — westbound to Kikuyu & outskirts.
• Lang’ata Road — towards Lang’ata and Karen.
• Mombasa Road / Airport Road — to Jomo Kenyatta International Airport.
• Ngong Road — to the south-west and beyond (Rongai).
• Jogoo Road — east/west arterial through Eastlands.
• Outer Ring Road (including parts of the Eastern Bypass).
• Ring Road (including Ring Road West, Ring Road Kilimani).
• Limuru Road — northern corridor.
• Haile Selassie Avenue — CBD artery.
• Kenyatta Avenue / Moi Avenue — city centre.
• Thika Superhighway / Northern Bypass / Eastern Bypass / Southern Bypass — newer bypass highways easing traffic and connecting the ring.

Practical checklist for customers before calling Refitec

1. Note down the exact Sony TV model number (on the back label).
2. Describe symptoms and any error codes.
3. Note when the problem started and any events (power surge, spill).
4. Prepare for a drop-off or ask about onsite visit area and cost.
5. Back up any login credentials (Smart TV apps/network).

Contact again: Refitec — 070 484 3613.

Closing and call to action

If your Sony TV is experiencing the symptoms described — intermittent power, blank screen with audio, repeated boot loops or app failures — contact Refitec on 070 484 3613 for a professional diagnosis and transparent quote. Refitec’s technicians will walk you through options: economic component-level repair when possible or full motherboard replacement using OEM or high-quality replacement parts where necessary, complete with testing and warranty.