TV Problem. Help Please!

[Petrushka]

The picture on my Samsung (not so) Smart TV keeps on going on and off while the sound still comes perfectly through my speakers via the Panasonic DVD recorder. What is happening is that the set is actually switching itself on and off about every 10 to 20 seconds. Picture quality is otherwise perfect so I'm stumped as to what is doing this. I've had the set for nearly 4 years and haven't had a moment's trouble with it until now.

Forum pages mention a faulty PSU (whatever that is) and that the TV might be protecting itself against a surge due to faulty wiring but I honestly haven't a clue.

Anyone else had this problem?

[pastoralguy]

We have a Samsung tv, Pet, and we've never had problems with it. Might it be worth your while investing in an anti-surge cable? I have a friend whose fabulously expensive Hi-Fi is protected thus. May I also suggest you contact your power supplier to ask if they've been having problems keeping voltage st a constant level. Have you neighbours been affected thus?

[Anastasius]

A quick Google would suggest that you are not alone.

Suggestions are : Do a factory reset

Do you have anyone in the house or nearby who might be having a laugh at your expense? By that, I mean that they are using a universal remote control or even an app on a smartphone to turn your TV on and off.

But Googling a bit further suggests that your power supply board (PSU) could have bad capacitors (quite likely given the age of your TV and the poor design of a lot of modern electronics). If so then you have no option but to take the set in for repair.

[pastoralguy]

A quick Google would suggest that you are not alone.

Suggestions are : Do a factory reset

Do you have anyone in the house or nearby who might be having a laugh at your expense? By that, I mean that they are using a universal remote control or even an app on a smartphone to turn your TV on and off.

Now THAT is a scary thought...

[Petrushka]

A quick Google would suggest that you are not alone.

Suggestions are : Do a factory reset

Do you have anyone in the house or nearby who might be having a laugh at your expense? By that, I mean that they are using a universal remote control or even an app on a smartphone to turn your TV on and off.

But Googling a bit further suggests that your power supply board (PSU) could have bad capacitors (quite likely given the age of your TV and the poor design of a lot of modern electronics). If so then you have no option but to take the set in for repair.

I've done a bit of Googling too and have come up with something like you. It would seem to be a known problem - and these things always happen after the warranty runs out...

[Bryn]

If it is the PSU (Power Supply Unit) then the capacitors concerned are pretty much bound to be electrolytics, in which case, if you can identify their capacity from the printing on them, and are reasonably handy with a fine tipped soldering iron, you might well be able to replace just them, not the whole PSU. If you doubt your ability to do the job, a small independent electronic repair enterprise might do the job, again without having to replace the whole PSU. Alternatively, you might try approaching Samsung for a replacement PSU which is probably no great task to fit yourself. I know, I know, "It is the duty of the wealthy man to give employment to the artisan", but how was I to know that you are wealthy?