Bought it a year ago, warranty is for two years. Yellow stripes recently appeared at the top of the screen, but the TV turns on normally otherwise. The store says it's mechanical damage, not a manufacturing defect. How do I prove my position and get it repaired under warranty?
Yellow stripes at the top of the screen are almost always the result of a manufacturing defect in the matrix or cable, not mechanical damage - especially if the TV turns on normally and you didn't drop it. Demand in writing from the store their reasoning for why they consider this mechanical damage - without photos of damage, scratches, or cracks on the case, it's just an excuse. If they refuse, file a written complaint (in person at the store with a copy for yourself) and cite the consumer protection law - with a valid warranty and no visible signs of damage, the TV should be sent for expert examination at no cost to you.
The main thing is don't sign any papers about mechanical damage if the store offers them. Even if they tell you verbally that it's a defect, but the report says "mechanical damage" - that's it, you won't be able to prove anything later. Ask the seller for a written explanation of why exactly they consider this a mechanical defect. They probably won't give you one or write anything that makes sense.
Here's a trick that works: assess the TV from a physical standpoint. Are the stripes located right at the top? Take a photo of the screen with a clear timestamp (say, with a clock visible in the frame). Then look online for what yellow stripes look like with actual mechanical damage - usually there are microcracks, chipped pieces of screen, noticeable clouding. If you don't have any of that, and the lines are sharp and even - that's a classic sign of a ribbon cable or subpixel matrix problem. Show these photos to the store and service center in parallel.
Don't go to the store itself, but to an authorized service center of the TV manufacturer. They'll run diagnostics on neutral ground, and if the specialist confirms it's a factory defect, the store will have to respect their expertise. If the store keeps pushing back - write a complaint (better make two copies, leave one with them, keep one for yourself), citing the fact that the warranty is valid and there's no external screen damage. Consumer protection law is on your side, because two years of warranty is the seller's obligation, not their whim.
The question is framed correctly - you're still within the warranty period, so you have a chance. The thing is, the store is just being lazy about contacting the manufacturer, so they're trying to talk you out of it. Stripes on the screen during normal device operation are a classic sign of a factory defect in the matrix or wiring, not the result of impact or a fall. If there was mechanical damage, there would be visible traces: cracks, dents, leaks, dirt in the crevices - something tangible.
Don't sign any documents mentioning "mechanical damage" or anything like that. Even if the seller verbally assures you they'll process it as a defect and the paperwork is just a formality. File a written complaint in two copies: one for you, one for the store. Write down exactly what appeared: yellow stripes on the screen when turned on, the TV didn't fall or get hit, it's a clear manufacturing defect. Reference the Consumer Protection Act - during the warranty period, goods must work without defects.
If the store keeps pushing back, demand that they send the TV for independent inspection (the store usually pays for it if the defect is confirmed). The specialists will quickly figure out whether it's a defect or impact damage. In 99% of cases with matrix stripes, the inspection will be on your side, and then the store is obligated to either repair or replace the goods 😊
I don't think the store is just refusing you outright - they're probably genuinely unsure! Here's what will work: ask them to write up an inspection report describing the defect (without the word "mechanical"), then send photos of the stripes and the report directly to the manufacturer's service center, bypassing the store. Official service often takes a different view than retail does, and with these symptoms (yellow stripes with no impact damage), they'll actually recognize it as a matrix defect!
The store may blame mechanical damage simply because it's easier to brush you off than to deal with a claim to the manufacturer. But you have a strong argument: the stripes appeared on their own, without drops or impacts - this clearly points to an internal defect. Demand that they draw up an inspection report with an objective description of the problem, without conclusions about the cause. The phrase "presence of vertical stripes on the screen" is already enough - they shouldn't write their own version of the damage mechanism.
After that, send a complaint to the store in writing (preferably registered with acknowledgment of receipt or through their electronic document system if they accept them). State that the defect appeared during the warranty period under proper use, and cite the consumer protection law. The store is obligated to send the TV to the manufacturer for expert evaluation - they should determine the true cause. Here's the catch: if the evaluation rules in the store's favor, you might have to pay for the examination yourself. But in practice this rarely happens, because manufacturers rarely recognize stripes as mechanical defects if there are no visible damage marks on the body.
The key thing is don't sign any papers that directly state "mechanical damage." If they talk about a defect verbally, demand that it be documented. A year has passed, warranty is good for two years - you're in a completely legitimate position.
I had a similar situation with a monitor - stripes appeared after a year too, and the store immediately started claiming it was mechanical damage. Turns out that stripes on the screen from matrix failure or ribbon cable contact issues are almost always a factory defect, not the result of impact. If the TV had been dropped, there would be cracks, dead pixels all over the screen, not neat stripes in one spot.
The key thing is don't let the store's talk about mechanical damage get to you. Ask for a written inspection report describing only the defect itself: "yellow vertical stripes visible on screen" - without the word "mechanical." If they refuse to draw one up - that's already a signal they doubt their own position and are just hoping you'll leave. Get that report and send a complaint to the store by email demanding warranty repair or replacement. State that you haven't caused any mechanical damage to the TV and ask them to send it for expert evaluation to the manufacturer.
If the store keeps being stubborn, go to a consumer protection organization or file a complaint with Rospotrebnadzor. In practice stores back down much faster once they see you're going to pursue it through official channels. You've got a two-year warranty, and stripes on the screen are exactly the kind of thing covered by law.
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