There are two kinds of tv mainboard repair outfit in Johannesburg. One quotes over the phone before seeing anything, orders the most likely part, and hopes. The other opens the set, measures, finds the actual fault, and quotes what it will cost to fix that. We're the second kind, and the whole shape of how we work follows from it.
A diagnosis here means the set gets its back off and a meter on it. Supply rails checked against spec under load, not at idle. Backlight strings driven individually so a single dead LED doesn't get mistaken for a failed driver. Panel ribbons and T-Con checked before anyone starts talking about a new screen — a fair number of "cracked panel" jobs turn out to be a loose or corroded connection, which is a fraction of the cost.
You get a fixed price, not a range covering the confirmed fault, the part it needs and the labour to fit it. It doesn't drift once work starts. If we open the set and find a second, unrelated problem, that's a phone call to you before anything else happens — never a line item you discover on the invoice.
Work is warranted for 12-month on our labour, parts carry their own cover, and the set is tested properly before handover: an hour of real viewing, all inputs, sound at volume, the smart platform actually loaded. One number gets you a technician — 069 423 8290.
You are also welcome to keep the parts we remove. Some people want to see the bulged capacitors or the dead backlight strip, and that is entirely reasonable — it is the clearest possible evidence of what was actually wrong. Just say so when you approve the quote and they will be left with you.
From Sandton City to your lounge
From Sandton City to your lounge is a shorter trip than most people assume, and it changes what a repair actually costs you in time. We are genuinely local here rather than treating it as an outlying zone to be visited when enough jobs stack up, which is why a call in the morning usually means a technician the same day or the next.
That coverage runs across Melville, Parkhurst, Auckland Park, Bruma and Bedfordview, and the practical benefit is not just speed. It means the set often does not need to leave the house at all. A supply board, a backlight strip, an HDMI port, a failing power button assembly — these are on-site jobs when the technician arrives with the right stock, and a set that never gets moved is a set that never gets damaged in transit or lost in a workshop queue.
Where a job genuinely needs the bench — panel work, board-level soldering, anything needing a controlled environment — we collect, log the set in properly, and give you a realistic date rather than an optimistic one. You get told which category your repair falls into at the point of quoting, not discovered halfway through.
Access is worth mentioning: if the set is wall-mounted, tell us when you book. Bringing the right bracket tools and a second pair of hands is the difference between a clean job and a scratched wall. Same goes for anything above a fireplace or in a ceiling mount — we would rather plan for it.
If the television is in a flat, complex or estate with access control, let us know the arrangements when you book. Getting stuck at a boom gate is the single most common reason a scheduled visit runs late, and a name left at the gate solves it entirely.
Power surges and load shedding — the quiet TV killer
If there is one thing that kills televisions in Gauteng faster than anything else, it is the electricity supply. Load shedding is not simply an inconvenience for a TV — it is a repeated, violent cycle of power loss and restoration, and the moment of restoration is where the damage happens. The surge that arrives when the grid comes back is short, sharp and entirely capable of taking out a supply board that would otherwise have run for another decade.
Sets seldom die on the first surge. Electrolytic capacitors on the primary side lose capacity a little at a time, the set starts taking longer to come out of standby, then one day it clicks and does nothing. By that point the repair is a supply board rebuild rather than a single component, which is why the early symptoms are worth acting on.
What actually protects a set: a decent surge-protected multiplug is the bare minimum and costs less than a takeaway. Better is a UPS or inverter feeding the entertainment unit, which removes the hard power cut entirely. Best, if you are already running an inverter, is making sure the TV is on the protected circuit rather than an unprotected wall socket two metres away — we see that mistake constantly.
Unplugging during a storm still works. Direct strikes and nearby induced surges are a different order of magnitude, and no consumer-grade protector is going to absorb one. If a set has taken a hit, tell the technician — it changes what gets checked first.
If the damage was clearly caused by a surge or a strike, ask us for a written assessment. Most household policies cover lightning and power-surge damage to electronics, and a proper technician's report describing the specific components that failed is usually what an insurer needs. It costs you nothing to have it written up.
The faults we see most in Johannesburg
Certain faults come round often enough in Johannesburg that a technician can usually narrow things down from a decent description on the phone. These are the ones we see week in, week out.
- Dead set, standby light on or clicking. Almost always the power supply — bulging or dried-out capacitors on the primary side, or a protection circuit shutting the rail down because something downstream is drawing too much.
- Sound plays, screen stays black. Shine a torch at an angle on the dark screen: if you can see a faint image, the panel and mainboard are fine and the backlight has failed. That is a strip replacement, not a new screen.
- Picture with vertical or horizontal bands. Usually the T-Con board or its ribbon connections. Sometimes recoverable, sometimes panel-level — the diagnosis decides.
- Apps crash, Wi-Fi drops, remote lags. The smart module or its storage. Often repairable, and frequently mistaken for a set that is simply "too old".
- Wobbly or dead HDMI input. Port fatigue from years of plugging and unplugging. A re-soldered or replaced port is a cheap job that saves a whole television.
The pattern worth noticing is that none of them require a new set. They are component failures on a device that is otherwise sound, and the cost of putting them right is a fraction of replacement. The exception is genuine panel damage, which we will always tell you about honestly.
If your fault is not on this list, that is not unusual — describe the behaviour on 069 423 8290 and we will tell you what it points to.
Intermittent faults are the hardest to pin down, so anything you can tell us about the pattern helps enormously — whether it happens from cold, after an hour, only on one input, only after a power cut. A short video on your phone of the set misbehaving is genuinely useful and often saves a whole diagnostic visit.
What happens when you book
Booking is deliberately low-friction, because most people calling about a television are already mildly annoyed and do not want a process. Ring 069 423 8290, or send the details through the form, and you will be talking to someone who fixes these for a living rather than a call-centre script.
Four things help us bring the right parts: the brand, the screen size, roughly how old it is, and what it is doing. If you can find the model number on the sticker at the back, even better — that pins down the exact panel and supply variant, and it is the difference between a one-visit repair and a return trip.
We book a window rather than "sometime Tuesday", and the technician calls before setting off. Across Melville, Parkhurst, Auckland Park, Bruma and Bedfordview that usually means same-day or next-day for the routine faults, and we will say plainly if a part needs ordering rather than pretending otherwise.
What to have ready. Clear access to the back of the set — if it is wall-mounted, mention that when booking so we bring the right tools and a second pair of hands. The remote, because a surprising number of "dead TV" call-outs are a remote or a source problem. And the original power cable if you have swapped it for a different one.
After that it is our problem, not yours: diagnose, quote, fix, test, hand over, warranty. You approve the number before anything happens, and it does not change afterwards.
If you need to move the appointment, a phone call is enough and there is no charge for rescheduling. We would far rather shift a booking than have a technician arrive to an empty house — which is also why we call before setting off rather than simply turning up in the window.
Where the money goes — and where not to cut corners
It is worth knowing where the money in a repair actually goes, if only so you can tell a fair quote from a padded one. Three things make up almost any invoice: the part, the labour to fit it, and the time spent working out which part it needed in the first place.
The part. Genuine manufacturer boards carry a premium and are not always available for older models. Quality equivalents are frequently the better buy, and occasionally the better part — some aftermarket supply boards use better-rated capacitors than the originals that failed. What matters is the specification, not the branding on the box.
The labour. Fitting a supply board is quick. Rebuilding one at component level is not. Replacing backlight strips means the panel comes off the frame — delicate, slow, and the step where an inexperienced hand turns a repair into a write-off. You are paying for the second kind of care, and it is the part worth paying for.
Where not to cut corners. Under-rated capacitors that fail again in a year. Mismatched backlight strips that give uneven brightness and stress the driver. Skipping the thermal paste and pads on a mainboard swap. All of these save a little now and cost more later.
Where saving money is sensible: a quality equivalent part over genuine, on a set that does not warrant the premium. We will tell you which is which, and price both if you want the choice.
If you need the quote in writing for an insurer or a landlord, we will provide it in a form that is actually usable — the fault described properly, the parts itemised, the labour separated out. A one-line figure scribbled on a receipt tends to get sent back, and that wastes a fortnight.
The brands we repair in Johannesburg — and how we source parts
The brands we see most in Johannesburg are Samsung, LG and Hisense LED/QLED sets, and that shapes what travels in the van. Stocking the common supply boards, backlight strips and connectors for the sets people here actually own is the unglamorous reason routine repairs finish in one visit instead of three.
Samsung and LG dominate the installed base and are generally good to work on — parts availability is decent, service documentation exists, and the common failure points are well understood. LG's OLED range needs a different approach again, and we will be straight about which OLED faults are economically repairable and which are not.
Hisense, TCL and Skyworth have taken a large share of the mid-market, and they fail in predictable ways — supply-side capacitors and backlight drivers, mostly. Parts are available, repairs are usually economic, and these are frequently the sets people assume are disposable when they are not.
Sony, Philips, Panasonic and Sharp turn up less often but are perfectly serviceable. Older Sony and Panasonic panels in particular are worth keeping alive — the build quality justifies a repair that would not make sense on a budget set of the same age.
What we will not do is pretend a brand is unfixable to avoid the work. If a part is genuinely unobtainable — and on some older or grey-import models it is — you will be told that plainly, along with what your options actually are, rather than being strung along while we try.
OLED and QLED sets deserve a specific note. QLED is an LED set with a quantum-dot layer, so it fails and repairs much like any other LED television. OLED is genuinely different — panel-level faults such as burn-in are not economically repairable, though supply, board and connectivity faults on an OLED are as fixable as on anything else.
Why Johannesburg chooses us
There is no shortage of people in Johannesburg who will collect your television and return it eventually. The reasons customers here stay with us are mundane rather than dramatic, which is rather the point.
The diagnosis is free and it is real. Not a glance and a guess — a meter on the rails, backlight strings driven individually, connections checked before anything is condemned. You get told what is actually wrong, whether or not you go ahead with us.
The quote is fixed before work starts. You approve a number, and that is the number. No diagnostic fee that appears regardless, no discovery halfway through that the job is suddenly larger.
Most repairs happen in your house. Working across Melville, Parkhurst, Auckland Park, Bruma and Bedfordview with the right stock on board means the set usually never leaves — no transit damage, no workshop queue, no fortnight without a television.
The same technician sees it through. Thabo Mokoena and the team diagnose and return to fit, so nobody re-learns your set from scratch and nothing gets lost between people.
We say when not to repair. If replacement is the better buy, that is what you will hear, with the reasoning. A declined job costs us less than a bad reputation.
There is nothing clever in any of it — it is just what a competent trade should look like. It is apparently rarer than it should be.
Business and trade customers get the same terms with a bit more structure: consolidated invoicing, scheduled visits around trading hours, and a single point of contact rather than a new conversation each time. Guesthouses, sports bars, offices and estates are a decent share of what we do.
We tell you when NOT to repair
We tell people not to repair their televisions fairly regularly, and it is worth explaining why a repair business would do that.
The simple version: a repair that was not worth doing generates an unhappy customer within a year, and unhappy customers are considerably more expensive than declined jobs. The better version: we would like to still be doing this in Johannesburg in ten years, and that only works if the advice is honest when honesty is inconvenient.
When we will say don't. A panel failure on a mid-range set more than about five years old. Multiple simultaneous faults where the total approaches replacement cost. Water or lightning damage across several boards, where fixing one just reveals the next. Models where the essential part is genuinely unobtainable — some grey imports and discontinued lines fall here.
What you get instead. A straight explanation of why, what an equivalent replacement would cost, and what to look for in a new set given how you actually use it. If there is anything worth salvaging — a working panel, a sound bar arrangement, a wall bracket that fits — we will say so.
You owe nothing for the advice. You are not charged for being told the truth, and you are not pressured towards a repair to justify the visit. It works the same regardless of the answer.
Second opinions are welcome, including on our own diagnosis. If another repairer has quoted you and the number feels wrong, bring us the details — we will tell you honestly if it looks fair, and we have talked people into accepting someone else's quote more than once. The diagnosis is free either way.
If something goes wrong
Warranties are easy to advertise and awkward to honour, so it is worth setting out exactly what ours covers, what it does not, and how to use it — before you need it rather than after.
What is covered. Our workmanship for 12-month from the date of handover. If the fault we repaired comes back, we return and put it right at no charge, including the call-out. Parts we supply carry their manufacturer's cover on top of that, and we handle the claim rather than sending you to do it.
What is not. New and unrelated faults, which are quoted fresh. Physical damage after the repair — a knock, a dropped remote through the screen, a spill. Damage from a surge or lightning strike after handover, which is an insurance matter rather than a workmanship one. And any work done by someone else in between, which we cannot reasonably stand behind.
How to claim. Phone 069 423 8290 with the job details. There is no form and no portal. We keep the record of what was done and which parts went in, so the conversation starts from what we already know rather than from your description of a repair you did not perform.
One practical suggestion: keep the invoice. Not because we will refuse without it, but because it has the model, the parts and the date on it, and that makes any future conversation about the set faster for everybody.
We keep the job record on our side regardless — model, fault, parts, dates and who did the work. So even if the invoice has long since disappeared into a drawer, a phone call with your address and rough date is usually enough for us to find the job and pick up the conversation from there.
TV Mainboard Repair in Johannesburg — common questions
Do you service Auckland Park, Parkhurst, Bedfordview and Bruma?
Yes — Johannesburg and its surrounds including Melville, Parkhurst, Auckland Park, Bruma and Bedfordview are part of our standing coverage, with Thabo Mokoena in the area regularly. If you're just outside the listed suburbs, call 069 423 8290 anyway; listed areas are our patches, not our limits.
My smart TV apps keep crashing or Wi-Fi won't connect — is that a hardware fault?
Usually not. Most smart-platform faults — crashing apps, frozen menus, Wi-Fi that won't hold — are software issues: full storage, corrupted app data or outdated firmware. We try the free software fixes first (cache clearing, firmware updates, a careful factory reset) before treating it as a hardware fault.
Do you repair TVs you didn't sell or previously service?
All the time — most of our Johannesburg work is TVs bought from a retailer, not from us. We diagnose with proper test equipment, quote the fix fixed, and repair every major brand. You don't need any prior relationship with us to get a fair diagnosis and quote.
Do you offer on-site repairs, or do I need to bring the TV in?
Both — whichever suits you and the fault. Many faults (power boards, HDMI ports, sound issues, software faults) can be diagnosed and often fixed on-site. Screen replacements and some mainboard repairs are usually better handled at the workshop, and we can collect and deliver if that's easier for you. We'll recommend the right option once we know the symptom.
My TV won't turn on at all — what's usually wrong?
In the large majority of cases, a failed power supply board or worn-out capacitors — one of the most common and most affordable TV repairs there is. A telltale sign is a faint click or pop when you try to switch it on. We test the board properly before quoting, since a small number of "won't turn on" cases are actually a mainboard fault instead.
What information should I have ready when I call?
The brand and approximate screen size, roughly how old the TV is, and what it's actually doing (or not doing) — a black screen with sound still playing is a very different fault from a TV that's completely dead. A photo or short video sent on WhatsApp helps us prepare and often speeds up the diagnosis.
Can you fix a cracked or smashed screen?
Sometimes, and we'll give you an honest cost comparison before you commit. Screen panels are by far the most expensive single component in a TV, so on a large or older set, the repair cost can approach the price of an equivalent new TV — in which case we'll say so plainly. On smaller or newer sets, panel replacement is often genuinely worthwhile.
Which TV brands do you repair?
All major brands, including Samsung, LG and Hisense LED/QLED sets — we're not tied to any manufacturer, so the advice on repair vs replace is based on your specific TV, not on what we happen to stock. See our brand guides at /brands/ for what we know about each manufacturer's common fault patterns.