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Expert Diagnostics: Pinpoint motherboard failures swiftly for LG TVs.
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Genuine Parts: OEM LG motherboards ensure compatibility and performance.
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Rapid Turnaround: Most repairs complete same day at competitive rates.
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On-Site Warranty: 6-12 months coverage post-replacement.
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Convenient Location: Prologic-Technologies at Luthuli Avenue hub.
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All LG Models: Supports flatscreen, OLED, NanoCell from 32″ to 86″.
LG televisions rely on sophisticated motherboards to process signals, control displays, and manage smart features. When these boards fail, screens go black, audio drops, or menus freeze—common issues in Nairobi’s dusty, power-fluctuating environment. Prologic-Technologies specializes in motherboard swaps, restoring full functionality without full TV replacement. Luthuli Avenue, Nairobi’s electronics nerve center, hosts their workshop amid stalls of components and repair bays.
Motherboards handle HDMI inputs, Wi-Fi modules, and LED backlights. Failures stem from power surges—frequent during Kenya Power outages—overheating in unventilated rooms, or liquid spills. Symptoms include no power, distorted colors, or stuck channels. Prologic techs use multimeters and oscilloscopes to confirm board faults, avoiding unnecessary part swaps.
Diagnostic Process
Customers drop off TVs at Prologic’s Luthuli shop. Technicians log serial numbers and symptoms. Initial tests check power supplies—often culprits mistaken for mainboards. Diagnostic software reads error codes via USB.
Disassembly reveals swollen capacitors or burnt ICs. Burn-in tests simulate usage. Only confirmed bad boards trigger replacement.
Replacement Procedure
Skilled hands unscrew rear panels, disconnect ribbon cables carefully. Mainboards lift out after unplugging LVDS, power, and audio connectors. New boards slot in precisely—mismatches void warranties.
Firmware flashes update software for model-specific features like webOS. Thermal paste reapplies to CPUs. Reassembly follows torque specs to prevent cracks.
Full burn-in runs 2-4 hours, cycling inputs and apps. Final checks verify 4K playback, smart remote pairing.
Why Prologic-Technologies?
Luthuli Avenue offers proximity to wholesalers, slashing part costs 30-40%. Prologic sources genuine LG boards from authorized channels, dodging fakes flooding side stalls. Their ISO-trained techs average 50 repairs weekly.
Unlike chain stores, Prologic provides pick-up in Nairobi CBD, Westlands. Bulk deals suit schools, hotels with LG fleets.
Environmentally, they recycle old boards responsibly, extracting gold contacts.
Common LG Models Serviced
32LK510 handles basic HD swaps affordably. OLED55C1 needs premium boards for perfect blacks. NanoCell77 series demands precise color calibration post-repair.
Q NED models integrate quantum dots—boards control brightness mapping. Commercial displays like 86BH560E get ruggedized boards for 24/7 use.
Cost Breakdown
| Model Size/Type | Motherboard Part | Labor Included (KES) | Total Estimate (KES) | Repair Time |
|---|---|---|---|---|
| 32-43″ Basic LED | EAX66476103 | 5,000 – 7,000 | 12,000 – 18,000 | 2-4 hours |
| 49-55″ UHD Smart | EAX67632703 | 8,000 – 12,000 | 18,000 – 25,000 | 4-6 hours |
| 65″ NanoCell | EAX68174601 | 15,000 – 20,000 | 28,000 – 38,000 | 6-8 hours |
| 55-65″ OLED | EAX66525803 | 25,000 – 35,000 | 40,000 – 55,000 | 8-12 hours |
| 75-86″ QNED | EAX68734902 | 30,000 – 45,000 | 50,000 – 70,000 | 1 day |
| Commercial 86″ | Custom BH Series | 40,000 – 60,000 | 70,000 – 100,000 | 1-2 days |
Prices reflect 2026 market; free quotes after inspection. Discounts for multiples.
Power Protection Tips
Surges kill boards yearly. Prologic bundles repairs with stabilizers (KES 3,500). Clean vents monthly—dust insulates heat. Use original LG adapters; third-party ones spike voltages.
Software updates patch vulnerabilities via LG ThinQ app.
Warranty and Aftercare
6-month board warranty, 3-month labor. Failures from misuse excluded. Prologic logs repairs for lifetime support.
Remote diagnostics via TeamViewer for software glitches.
Annual check-ups (KES 2,000) prevent issues.
Luthuli Advantage
Luthuli Avenue pulses with 500+ shops—Prologic at prime spot near City Market. Walk-ins welcome 8AM-7PM daily. Matatu access from all Nairobi routes.
Competitors cluster nearby, but Prologic’s LG certification stands out.