At Refitec, diagnosing a blown TV power board typically costs KSh 500 – KSh 1,500, depending on the TV brand and fault complexity. Most diagnoses are completed same day. Call or WhatsApp us on 📞 0704843613 to book your assessment now.
📍 Looking for a TV Service Center Near Me in Nairobi?
Refitec is your trusted local TV repair and diagnosis expert. We service all major TV brands including Samsung, LG, Sony, Hisense, Skyworth, TCL, Panasonic, and more.
📞 Call or WhatsApp: 0704843613
⚡ Quick Answers at a Glance
| Your Question | Quick Answer |
|---|---|
| How much to diagnose a blown TV power board? | KSh 500 – KSh 1,500 |
| How long does diagnosis take? | 1–4 hours (same day) |
| Will I pay if the TV can’t be repaired? | Diagnosis fee only — no hidden charges |
| Can you come to my location? | Yes — home visit service available |
| How do I book? | Call/WhatsApp 0704843613 |
| Where is Refitec located? | Nairobi — contact us for directions |
🔍 Signs Your TV Has a Blown Power Board
Before spending money on a full repair, it helps to know if your TV is actually showing power board symptoms. Here are the most common warning signs:
- TV won’t turn on at all — no light, no response from the remote
- Standby light blinks repeatedly without the TV powering up
- TV turns on but screen stays black with no picture or sound
- Clicking or ticking sounds when you press the power button
- TV powers on briefly then shuts off immediately
- Burning smell coming from the back of the TV set
- Fuse keeps blowing after replacement
If your TV shows any of the above symptoms, it’s very likely the power supply board is faulty and needs professional diagnosis.
💰 Refitec TV Power Board Diagnosis Cost Breakdown
Diagnosis Fees
| Service Type | Cost (KSh) |
|---|---|
| Standard TV Power Board Diagnosis | 500 – 800 |
| Advanced Fault Tracing (Intermittent faults) | 800 – 1,500 |
| Home Visit Diagnosis (within Nairobi) | 1,000 – 2,000 |
| Diagnosis + Written Fault Report | Included free |
💡 Note: The diagnosis fee is separate from repair costs. Once we diagnose the fault, we give you a full cost estimate before any repair work begins — no surprises.
Typical Repair Costs After Diagnosis
| Repair Type | Estimated Cost (KSh) |
|---|---|
| Power board capacitor replacement | 1,500 – 3,500 |
| Power IC / MOSFET replacement | 2,000 – 5,000 |
| Full power board replacement | 4,000 – 12,000 |
| Multi-board fault repair | 5,000 – 15,000+ |
🛠️ What Happens During a TV Power Board Diagnosis at Refitec?
Our certified technicians follow a structured, step-by-step diagnostic process to accurately identify your TV’s fault — fast and affordably.
Step 1: Initial Visual Inspection
When your TV arrives at our service center, our technician performs a thorough visual inspection of the power board and surrounding components.
What we check:
- Burnt or discoloured components (capacitors, resistors, MOSFETs)
- Swollen or leaking capacitors
- Blown fuses on the power rail
- Physical damage or moisture inside the set
- Scorch marks or melted solder points
Time taken: 10–15 minutes Purpose: To identify any obvious fault before using test equipment
Step 2: Safety Testing & Isolation
Before powering up the board, we isolate the power board from other internal components (mainboard, T-con board, backlight inverter) to avoid cascading damage.
What we do:
- Disconnect backlight supply lines
- Isolate the mainboard load
- Check for short circuits on primary and secondary rails using a multimeter
- Measure input resistance to confirm safe power-up conditions
Time taken: 15–25 minutes Purpose: To protect expensive components during testing
Step 3: Powered Testing Under Load
With safety checks complete, we power the board under controlled conditions using bench power supplies and dummy loads.
What we measure:
- Standby voltage rail (typically 5V SB)
- Main output voltages (12V, 24V, or 48V depending on TV model)
- PWM feedback signals from power controller ICs
- PFC stage performance (Power Factor Correction circuit)
- Ripple voltage on output rails using an oscilloscope
Time taken: 20–45 minutes Purpose: To confirm which rail is faulty or absent
Step 4: Component-Level Testing
If a specific section of the power board is identified as faulty, our technician goes component level — testing individual parts to find the exact failed component.
Components we test:
- Capacitors — checked for ESR (Equivalent Series Resistance) with an ESR meter
- MOSFETs / IGBTs — tested with a component tester for diode junction faults
- Diodes & rectifiers — forward voltage and reverse leakage tested
- Power ICs (e.g., TNY, TOP, VIPER series) — datasheet reference used to verify pin voltages
- Optocouplers — feedback isolation checked with CTR test
- Transformers — primary/secondary resistance measured for open windings
Time taken: 30–90 minutes (depending on fault complexity) Purpose: To identify the exact failed component, enabling precise and cost-effective repair
Step 5: Fault Report & Repair Quotation
Once diagnosis is complete, our technician prepares a clear, written fault report explaining:
- What is wrong with the power board (plain language)
- Which components are faulty
- Whether the board can be repaired or needs full replacement
- Cost estimate for repair parts and labour
- Turnaround time for the repair
You are under no obligation to proceed with the repair if the cost doesn’t suit you.
Step 6: Repair or Board Replacement (If Approved)
If you approve the repair, our technician:
- Sources genuine replacement components from our in-house stock or trusted suppliers
- De-solders and replaces faulty components using professional soldering stations
- Re-tests the board under full load conditions
- Reassembles the TV and performs a full functional test
- Issues a repair warranty on completed work
🏆 Why Choose Refitec as Your TV Service Center?
✅ Experienced & Certified Technicians
Our team has years of hands-on experience repairing TVs of all brands and panel types — LED, OLED, QLED, and plasma.
✅ Honest, Transparent Pricing
We quote before we fix. No surprise bills. No unnecessary part replacements.
✅ Same-Day Diagnosis Available
Walk in or book an appointment — most diagnoses are completed within the same working day.
✅ Genuine Spare Parts
We use OEM-grade components sourced from reputable suppliers to ensure longevity of repairs.
✅ Repair Warranty
All completed repairs come with a written warranty so you have peace of mind.
✅ Home Visit Service Available
Can’t carry your TV? We come to you — home visit diagnosis and repair available across Nairobi.
📞 Book Your TV Diagnosis Today — It’s Fast & Affordable
Don’t let a faulty TV sit gathering dust. At Refitec, we diagnose blown TV power boards starting from just KSh 500 — and we’ll give you a full repair quote before touching a single component.
📱 Call or WhatsApp: 0704843613
❓ Frequently Asked Questions (FAQ)
Q: Can a blown TV power board be repaired, or does it need full replacement?
A: In most cases, a blown power board can be repaired at component level — replacing only the faulty capacitors, MOSFETs, or ICs. Full board replacement is only necessary when the PCB itself is physically damaged or when the board model is no longer available. Component-level repair is significantly cheaper.
Q: How long does TV power board repair take at Refitec?
A: Simple repairs (capacitor replacement) take 2–6 hours. Complex multi-component faults may take 1–3 days, especially if parts need to be sourced. We’ll always give you a realistic timeline upfront.
Q: Is it worth repairing a TV with a blown power board?
A: Generally yes — especially for mid-range and high-end TVs (40″ and above). If the repair cost is less than 50–60% of the TV’s current market value, repair is almost always the better financial decision. Our technicians will advise you honestly.
Q: My TV powers on but has no picture — is that a power board problem?
A: Not always. A TV with sound but no picture is more likely a T-con board or backlight fault. A TV with no sound and no picture but a blinking standby light is more likely a power board or mainboard issue. Our diagnosis will pinpoint the exact fault.
Q: Do you offer a warranty on TV repairs?
A: Yes. All repairs at Refitec come with a written warranty covering both parts and labour. Terms depend on the type of repair — ask our team for details when you book.
Q: Can you diagnose my TV at my home in Nairobi?
A: Yes! We offer home visit diagnosis and repair across Nairobi. Call or WhatsApp 0704843613 to arrange a convenient time for our technician to visit.
📲 Contact Refitec — TV Service Center Near You
Refitec Electronics Repair 📞 Call or WhatsApp: 0704843613 🕐 Working Hours: Monday – Saturday | 8:00 AM – 6:00 PM 📍 Location: Nairobi (Contact us for exact directions) 🌐 Services: TV Repair | Power Board Diagnosis | Screen Replacement | Mainboard Repair | Home Visit
Refitec — Your Trusted TV Service Center in Nairobi. Fast. Honest. Affordable.