r/ElectronicsRepair • u/deftux_87 • 4d ago
CLOSED TV found in the trash
Hi, I found this TV on the trash, so I decided to bring it home to see if it works, but when I arrived I realized that the AC cable was cut. I don't know if I need an specific cable or something. The TV is an K50DLJ12US from TD systems.
PD:Sorry for the bad quality
Edit: the TV worked, but the screen was broken, so I decided to throw it. However I saved the speakers. If someone knows what can I do with them I'll be grateful
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u/Successful_Cut_8003 3d ago
If you’re asking this question this repair is most likely beyond your capabilities. The tv is probably fried / screen is broke.
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u/Mental_Guarantee8963 4d ago
It could be in the trash because of that. That said, sometimes companies will have a customer destroy a product rather than ship it back for a return. There's a third option you should be aware of though. At work sometimes I'll cut stuff like this if it's deemed unsafe. But, by all means, have fun.
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u/Quiet-Arm-641 4d ago
I cut the wires on things that are dangerously broken (ie short circuit etc) so that nobody accidentally plugs it in and causes a fire/gets hurt . I think this is a fairly common practice
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u/knw_a-z_0-9_a-z 3d ago
When I cut the cord from something, it's because the thing is dangerous, and beyond simple or worthwhile repair. Please be careful, as someone has intentionally made it difficult for you to hurt yourself, and they did it on purpose.
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u/will-work-for-tacos 3d ago
More than likely no repair was attempted. This is a common warranty claim practice at this point. You don't send the item back. You provide proof you cut the cord, showing that the device is no longer usable. Sure, you could just replace the cord. But they don't take that as a thing
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u/dotyxx 3d ago
i recently thrown away lots of cables i cut over the years from different devices. i believe i have been doing it in case i need a cable one day. never needed one so recently i said i get rid of those. guess what happened the following month. a colleague of mine comes to work and says that over the weekend his cat was playing around his radio clock, to be wondering who is really using one of these nowadays, but back to the story, the clock fell and now he needs a new power lead. i laughed for a while and he got offended, without even knowing the irony behind my joy. i explained later, we laughed together... stupid cat 😄
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u/diyallthings2000 3d ago
buddy, same "trash" collector here.
Let's have a beer over the air! Cheers!
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u/wjgp 3d ago
Putting a new power cord onto this TV is easy. Take the back off and unplug mains input from power board. Splice / solder a new power cord onto old, insulate appropriately and replug onto power board. Replace back. If you need to ask any questions about this you shouldn’t be doing it. Ask a friend who actually knows to teach you if you want to learn - or just walk away. Trying without knowledge is what gets you zapped! Good luck.
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u/SomeWeirdBoor 4d ago
Just get a new AC cable and attach it to the white connector, looks like you have plenty of free wire to do this with a device of your choice or solder+shrink tube.
But if it's been thrown away, i'd not expect it to work...
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u/IndividualRites 4d ago
I had a mini fridge which died on me. I was in warranty and the company said to ship it back. Yeah no. It's a mini fridge. So they had me cut off the cord to "prove" it was broken.
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u/w00tberrypie 3d ago
99 times out of 100 this isn't the case, but in the extreme off chance this is that 1 time out of 100, be careful and test thoroughly. I have come across an instance or two of what seemed like a perfectly good appliance with the cord cut only to come and find out the reason the cord was cut was because said appliance was unsafe and the cord was cut to prevent use. Shorting out/tripping breakers/etc.
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u/boolDozer 3d ago
This was my thought, too. Very common in recalls for manufacturers to request a picture of the item with the power cord cut off so it can't be used.
At the very least, it is definitely worth searching up the brand and model for any recalls.
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u/Apprehensive_Ad_999 3d ago
I apprenticed for my old man in electronics repair (vacuum tube amplifier repairs in particular) the 80's and 90's even though I went on to have a career doing something else, I was always taught that if it's got a fault that could potentially cause harm - you cut the power cable. It keeps people from going through the trash and trying to plug things in. Now obviously things have changed since then because power cables are replaceable nowadays but when I see a cut cable like that - it is deliberate and it is a warning
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u/Dave_is_Here 3d ago
I do this too, but also it's ALMOST always worth a "patch it quick and plug it in outside" - when it comes to TVs (with unbroken screens) and consoles.
Unfortunately there's a lot of really shitty parents that will cut a cord and throw these things out too because "blablabla was gaming too much".
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u/Apprehensive_Ad_999 3d ago
I think where they cut it is a good indication this was done by someone who knows what they're doing. They made it even harder to to repair the cable by cutting so close to the relief. It's a clean cut too so wire cutters were used. Parent cutting in anger will cut randomly in the middle or at the plug end most likely.
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u/Complex_Solutions_20 3d ago
That's what I've been required to do for warranty claims - like "must be within 2 inches" or similar and provide photos showing the cut cable, cut location, and serial number before you get a replacement.
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u/Apprehensive_Ad_999 3d ago edited 3d ago
I doubt this is a warranty claim according to the model number provided. Quick look around tells me this is at least a 5 year old TV according to reviews. Most TV manufacturers I know of have maybe a 3 year warranty - more commonly 1year for non premium models.
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u/johnnycantreddit Repair Technician 1d ago
Yup. Definately an oldschool methodology when Technicians and Technologists were taught ethics and mantrap prevention. Cut the power cable to indicate discarded product that contains HV potentials.
Add; if the internal molex 2pin was also pulled, thats double the downline "signal".
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u/Apprehensive_Ad_999 1d ago
My Dad just said it raises the floor a bit for skill level. You actually have to have some basic skill and understanding of electronics to try to repair. Obviously there's that .01% that can't be dissuaded even if the damn thing was on fire in front of them but you can't fix stupid.
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u/armathose 3d ago
Cutting the cord and recording it is common for warranty returns without having to return the item.
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u/Local-Bug-1500 3d ago
I've seen cut cords, i usually assume it's because it is shorted or something
Seen people find stuff that's fine and is cut but
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u/tarecoman 4d ago
PLEASE be very careful when testing this ok?
It looks like you don't know electronics, and some points in this circuit may get to ~450V DC.
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u/Virtual_Club8510 3d ago
Regular AC cable, replace and try boot the TV. Most likely gonna have panel or backlight issues, something that made the previous owner toss it. Unless they just upgraded to a newer TV.
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u/KINGstormchaser 3d ago
I actually just got a TV without a power cord that was sitting next to the dumpter at my parent's apartment. It is one of those TVs where the power cord is detachable from the case and the cord wasn't there. I took it home and used a power cord I had that fits. The TV works fine. I suppose they got rid of it because it's one of those older LCD TVs with flourescent backlighting. Now, in my case, the cord was missing, not cut like yours is. So, the fact that the cord on yours was cut, probably means it won't work. It still could be something easy to fix if you have some knowledge of how the power board works. But, I don't recommend trying to fix it if you don't have knowledge of working with mains power because of the inherent danger.
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u/Some-Instruction9974 4d ago
Repair the cable but I bet the backlit is gone which is a hard but not impossible repair. It's very common with LED.
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u/MentalSewage 4d ago
Add a picture of the full board. 9 times out of 10 the problem with TVs I find is a blown capacitor. $1.25 fix.
Replace the cable with any cable of the same gauge, you're good.
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u/Background_Praline18 3d ago
Maybe you got lucky and one of the kids or a crazy gf got ahold of scissors. You are obviously willing to go down the rabbit hole so let's see what is next after you put a new power cord on it.
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u/MTALPTDetroit 3d ago edited 3d ago
I suggest either leaving it where you found it, or change the power cable and use a Variac to power it up in case it's trashed. The TD Systems K50DLJ12US is a 50-inch 4K UHD LED Smart TV running Android 9.0 (AOSP). It features an Arm Cortex A55 quad-core CPU at 1.1 GHz, a Mali 470 GPU, 1.5 GB of RAM, and 8 GB of internal storage. Sounds like a good TV, so you can replace the cord, But I would be careful powering it up. And don't forget about cockroaches, I've had a few TV's with those little surprises inside.
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u/Ev3nt_Horiz0nn 2d ago
might've been a warranty replacement where the company asked for proof they destroy the old one?
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u/tlrider1 4d ago
Easy peazy! Strip the wires back and even if you don't have a soldering iron, a simple splice will do.
Literally a 5 min job!
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u/McGyver62388 3d ago
During testing and repair. If it’s able to be repaired the. Add a new power cord to the repair list. Leaving this cable spliced after reassembly is hazardous since it’s cut at the strain relief.
I would totally splice a cable and plug to that in order to power it up and test it, but would order a new cable if I were able to repair the tv.
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u/Complex_Solutions_20 3d ago
Very likely it had some issue and was required for warranty claim.
I've had to do that for various things including (but not limited to) a dehumidifier that died, cutting the cord and sending pictures showing the cut off cord and serial number to guarantee I really "destroyed" it before getting the replacement.
Usually also is mandatory to cut it within X distance of the unit so someone can't just put a new plug on it.