Tv switching itself off randomly
 

Hi all,

Just wanted a bit of advice. I’ve had my Samsung HD tv for 13 years now. I’m a fan of it and it’s never let me down. No it’s just randomly switching itself and then turning itself back on after a few seconds. I’m not sure what’s causing it.

It’s never done this before. The tv is in my boxroom which I won’t lie is spaghetti junction with adapters and other Devices plugged in all over the place but again it’s always been like this.

So my question is what do we think it could be or is the tv on the way out basically? Any way to test anything etc?

Secondly my current tv is 28inches, I could probably fit a new tv in up to the size of 32 inches but I assume this won’t be 4K? I’ve been told UHD or 4K (which are the same I think?) don’t work on tvs this small?

Re: Tv switching itself off randomly
 

Check cables and try others. The age tells me it could well be on its way out

Does it actually turn itself off ?? if so I would guess power supply

Re: Tv switching itself off randomly
 

When my TV switched itself on randomly, it turned out that I needed new batteries in my remote control. I’d try changing them first to see if that does the trick.

Re: Tv switching itself off randomly
 

A few years ago, our TV wouldn't turn on . . . it cost me £40 for a new switch.






to be honest, I should have left the thing broken ;)

Re: Tv switching itself off randomly
 

If you have an external freeview box or sky or android device you could just use a 32" 4K monitor

Re: Tv switching itself off randomly
 

It may not be switching off. The display can go blank if it's resetting the HDCP or having EDID conflicts.

Re: Tv switching itself off randomly
 

Good shout oldboy i havent changed them in years as i always use my virgin remote...ill give that a go. If this has actually caused it then I’ll laugh my head off haha. I cant be this lucky surely!

Nah only virgin media sadly! I basically live in my boxroom and I’ve got a computer right next to my tv table so there isn’t much room to play with haha
I’m not sure what any of this means? I don’t think my tv is new enough to have any of these but I’m completely ignorant! Turned itself off before and didn’t turn on for about 40 seconds before finally the red light kicked in and it came back on!
Aye yep red light disappears and the tv has switched itself off. Been a really good tv too!

Re: Tv switching itself off randomly
 

I assumed your TV is using an HDMI connection, and not an old SCART connection.
Do any of the current VM boxes have a SCART socket?

Re: Tv switching itself off randomly
 

So seeing as you have a tv service with VM a 32 inch 4K monitor would work

I still think it is the screens power supply

Re: Tv switching itself off randomly
 

It seems to work fine then I disconnect the power cable from the tv for a few seconds and then put it back in? Like this morning I took it out and back in and got an hour or so and then it started messing up again switching itself off and on repeatedly. I disconnected the wire again waited 30 seconds and I’ve had about 20 mins without it switching it off so far… no idea what’s going on or whether this is connected?

Re: Tv switching itself off randomly
 

I will say it one more time. Power supply hahahaha I mean inside the tv not the cable

Re: Tv switching itself off randomly
 

Damn so no chance of buying a new power cable for it working? It’s basically done and dusted?

Re: Tv switching itself off randomly
 

It is a power brick or just a cable ?

Re: Tv switching itself off randomly
 

Just a plug with 3 holes in it which goes into the tv

Re: Tv switching itself off randomly
 

well I guess that would not be too expensive to test

Re: Tv switching itself off randomly
 

Could also be a circuit board overheating causing a fail to safe. Either way you're probably going to have to get an engineer to look at it.


I suppose it could be a glitch in the power saving mode, might be worth trying to turn it off (if applicable).

Re: Tv switching itself off randomly
 

Sounds like a standard kettle cord … you may actually have one of the same type on your kettle, or in the back of your computer monitor, which you could borrow to test, although this doesn’t sound like the most likely diagnosis to me.

It could be something as simple as a dry joint on the circuit board or it could be an electrical component wearing out. It would have to go to a tv repair centre to sort out.

Re: Tv switching itself off randomly
 

could also be a cloverleaf

Re: Tv switching itself off randomly
 

Could be, but they’re less common … I have 7 or 8 devices in the house with 3-pin cords and they’re all euro kettle type. In fact I can only think of one device I’ve ever used that had a cloverleaf and that was a laptop at church (its power brick used one). Odds are it’s the kettle type, but either way unless the cord is prone to getting disturbed it’s not likely to be at fault.

Re: Tv switching itself off randomly
 

Any idea what the difference is between these two tvs?

Toshiba 32LL3C63DB 32-inch https://www.amazon.co.uk/Toshiba-32L...rpt=TELEVISION

Toshiba 32WK3C63DB https://www.amazon.co.uk/Toshiba-32W...rpt=TELEVISION

They look identitical expect for the reference number and the price of £10....

Re: Tv switching itself off randomly
 

One is google one Alexa and one is 1080 the other 720

---------- Post added at 22:44 ---------- Previous post was at 22:43 ----------

you want the full hd

Re: Tv switching itself off randomly
 

Treat yourself to a new TV on Black Friday.

Re: Tv switching itself off randomly
 

Think it may be this. I've turned it off for an hour and now its back on again and has been the last ten minutes. I had it on for a few hours and then it would turn itself off every few minutes.

So circuit board overheating seems to fit.

BTW thanks everyone for all the advice and posts.