EW0031 - Samsung 8K TV One Connect Box Teardown

[@davidwinnen666]

Perfect video! Keep up the good work bro. People need this kind of class A content.

[@Elecami]

Good to hear. Thank you.

[@AI7KTD]

I have a few 2021/2022 Frame TVs and the OneConnect cables are extremely thin and carry power to the TV at the same time. I took a quick look and looks like they've upped the voltage carried on the one connect cable to 350 volts to be able to use a very thin conductor to carry the needed 290 watts.

[@Elecami]

It is a nice system, no needing AC power to the TV. I have taken a look in that version too video EW0040 and EW0041

[@sherwoodhouse5617]

Did you happen to see the WiFi card, where the antenna may be? Is it in the One Connect box, I don’t see it here. Wondering if the cable is possibly used as the antenna on either end or if it’s in the TVs

[@Elecami]

WiFi and Bluetooth is on a small board that is in the TV part. The aerials are on that board. Here is an example of that board: twitter.com/ElectricElecami/status/1525841238330683392

[@husanuyghur7392]

samsung 8k qn800A Sim One Connect Box QN900A Can he use his for this?

[@Elecami]

@@husanuyghur7392 I don't know. I don't think it would be possible to mix 8K with 4K parts. The signals are different.

[@husanuyghur7392]

@@Elecami 8k tv900A

[@hassyg732]

Very nice detailed video. This box is making a clicking sound and my 8k tv is rebooting every 5 seconds. Whats usually the common cause of that?

[@Elecami]

Not sure. Would depend what type of click it is. A relay operating?, Switch mode power supply current limit? Need to try it with a different One Connect box.

[@en2oh]

@@Elecami or try a different "One Connect" cable

[@Elecami]

@@en2oh Yes that too.

[@iron2k6]

So I watched the vid. Unfortunately, with the latest 8K Neo QLED lineup, even if you decide to purchase the longer, more expensive cable separately, your options are very limited for this new One Connect "Pro" Box. The only upgrade that Samsung offers is the same thick cable, but 5m long max. No 10m, 15m, no fiber options available. Having a cable like this at least 7.5m long would really help me out with the setup I am working on. As far as I understand extending this new cable would be difficult to say the least, i.e. because of degraded signal. I wonder if there is a way to built something custom, like extend it with some signal strengthening method in the middle?...

[@Elecami]

I don't think it is practical to extend an electrical cable yourself. The issues with multi gigabits per second data signal integrity are too difficult to overcome. It would take a lot of work to build a custom extender and get it working reliably. More than the value of the TV if you had to pay someone to do it. I am surprised the 5m option is electrical and not fiber. For 8K signal that would be very difficult to achieve. It is much different to fiber where if you got the splice good, there is not much else to worry about.

[@JcajT]

I have the 2022 QLED 8K 75" Samsung with this connect box. 5 months in it stopped turning on. No red standby light on either. If you try turning the power on there is a clicking sound coming from the one connect box and the standby light will come on sometimes blink but black screen, no sound or video. I put a light to the screen and could not see anything coming on. Any idea what it could be?? Samsung will not honor the 12 month manufacturer warranty stating I did not buy it from an authorized Samsung reseller (they will look for any loophole took them two weeks of back and forth to tell me that).

[@Elecami]

Difficult to know. Probably power supply problem. Could be in the One connect box or the TV. Would need to find working parts to swap around and find where the problem is.

[@elissonjimenez32]

What is the name of the cable you disconnected? Trying to find one online to replace my current one.

[@Elecami]

The One Connect cable? Or something internal?

[@elissonjimenez32]

Internal. The first cable you disconnected when you opened the one connect. At about 10:25 mark.

[@elissonjimenez32]

That cable burned and im in need of a new one.

[@Elecami]

@@elissonjimenez32 I am not sure. It would be custom made for this. You'd have to contact samsungparts.com/ or local equivalent and ask. If there are service manuals you can probably work it out from the exploded views and parts list.

[@elissonjimenez32]

Gotcha. Thanks

[@yoosufismath2944]

Hi I have a qn800 TV with a similar one connect box. At first out of no where I got double image even on home screen. Resetting from the hub and the service menu did not work it appeared during the setup as well I unplugged and plugged it back after a month. But this time it took a while for the double image to form at the bottom. I was wondering if the TCON cable is loose or something. I would really like your opinion please.

[@Elecami]

Maybe an intermittent connection in the panel, board or a cable as you suggest. Could open it up and poke things around and reseat connectors. Being mindful of the high voltage. Warranty replacement would be better or a service person then it is up to them to open it up without breaking the glass.

[@yoosufismath2944]

@Elecami Wolf I see. Thank you very much. I'll look into it 👍

[@travis3656]

Hey! I have an 800b 75" with this same One Connect box. I have noticed that when I am running it at 4k 120 the one connect box gets hot (I measured it at 128 F) after about 5 hours of use. Does this seem normal to you? Does it run hot and I am just noticing it because it is out front as opposed to behind the display?

[@Elecami]

I have no idea, I've not experience one running, I just have the On Connect Box that I got in a lot of other random junk. The older one connect boxes I have used get quite warm. I had it sitting up on the edge because I thought that would help with airflow though the vents. The outer surface is used to dissipate the heat, the best you could do is have a small fan blowing at it.

[@travis3656]

@Elecami okay so they do get pretty warm then.

[@Rob-Benny-Hill]

Have bought and enjoyed the 8k QLED for 13 months, and yes, you guessed it, one month out of warranty, it has started misbehaving. TV powers off and on continuously. Have tried to get it repaired through SAMSUNGS service agent, and there been no reply now for 2 weeks. Repeated online chat with service and nothings been done. Positive its the one connect box malfunctioning. Anyone know what to do? Do I replace the box, if so, who sells them?

[@Elecami]

Seems likely a power supply issue. I can't say if it would be in the box or the TV part. Could also be bad connection of one connect cable. Depending where you are, official Samsung spare parts should be available to you. Google search: Samsung Spare Parts. Or keep an eye on eBay and similar places. People sell the one connect box from TVs that have a damaged screen.

[@Rob-Benny-Hill]

@@Elecami TY sir, so nice of you to reply. Have already made contact with Samsung parts. Hope to see some resolution.

[@Elecami]

@@Rob-Benny-Hill I hope that works out good.

[@JcajT]

Did you find the problem? @@Rob-Benny-Hill

[@jowferreira7217]

hello where can i get this oneconnect box un65js9000 diagram please

[@Elecami]

Not sure. I have not been able to find any.

[@jowferreira7217]

thanks

[@bestkozi]

Hey... I have problems... This connect... No backlight... Cable ok... Lcd ok... Backlight not start but tv work... Help

[@Elecami]

Sounds like dead backlight or Backlight driver / power supply. You will need to get it serviced.

[@bestkozi]

@@Elecamiother connect and tv work perfect led started... Oryginał connect its problem power supply....

[@Elecami]

@@bestkozi I think you will have to find a new one.

[@annacondasnakes]

Assuming that this thing is overheating during playing games in 4k (connected to a PC) to the point that it start giving frequent random black screen moments during the gaming sessions, lasting 2-3 seconds each, which are very anoying, what would you do to help cooling it down? I was thinking about attaching two USB turbine fans on the left side of it to blow some air inside it to cool it down, but I am not sure which component exactly is causing the black screens when it overheats so I can focus the air flow on it.. Any ideas..?

[@Elecami]

Could try fans blowing in the vents to see if that helps. If the screen is going blank it could also be the power supply in the TV part that is causing that. Power supply fault like dried out capacitors. In that case colling is not going to make it better.

[@annacondasnakes]

@@Elecami I had a 49" curved 4k Samsung before this one, with a much smaller one-connect box, which had the exact same problem. And I attached a laptop side cooler on the box, which extracts the air from inside and pulls out, and it worked like a charm. I'm just curious which part that heats causes the blackouts, to focus the blow on it. I can put it on the one connect box, but definitely I can't put a vent on the back of the tv itself.

[@Elecami]

@@annacondasnakes I don't have any experience with cooling helping that type of issue. From what I have seen it is a power supply problem or it is a signal quality problem. E.g. HDMI cable or adapter is poor quality, not connected well or worn out,

[@norbertsos4894]

I had the exactly the same issue, i got a 2.1 HDMI cable and it fixed the black flickering!

[@sherwoodhouse5617]

Did you happen to see the WiFi card, where the antenna may be? Is it in the One Connect box, I don’t see it here. Wondering if the cable is possibly used as the antenna on either end or if it’s in the TVs

[@Elecami]

WiFi and Bluetooth is on a small board that is in the TV part. The aerials are on that board. Here is an example of that board: twitter.com/ElectricElecami/status/1525841238330683392