Faulty tv power

Hi guys,

First time posting here, i've read the general guides and rules and will try to be as informative as possible.

First id like to tell you that i'm not the typical electronics guy, i have a v good technical xp and usually find my way through simple electronics issues, for this i'm out of thought and would like to hear what you guys think.

I have a tv that's my parents, im not sure how or why (neither do they) but it suddenly wouldn't turn on.

-wont turn on as in no power at all, power led not wont even light.
-I initially tested the power cable its fine
-i opened the tv and found the main fuse burnt. Its a 15AL fuse.
-i managed to replace it with a 10AL fuse (couldn't find a 15AL will get one on Monday)
-i tried to turn it on, my ups APS system went off as soon as i turned the tv on.
-i switched to regular power outside the APS
-power the tv> it made my lights go dim for a sec as if its starting up but nothing really happened. Still off
-new fuse (10AL) still ok

The only unusual thing i could see is a unit labeled "R4" that is near the fuse, it has a vivid blackish spot on it but dosent seem like burnt. Ill post a pic in a min.

Any thoughts are welcome
Thanks guys

 

So i just checked the APS, its fuse is burnt.

Btw, no burn smell from anywhere in the board/s

 

Thanks for the reply and no worries, its supposed to be a ups that has a automatic power system where normal electricity passes through and when power is out it starts providing from the batteries automatically.

Must be a short, but if it has a short, shouldn't the tv fuse blow instead of the UPS?

Thanks again

 

Heres what the R4 "thing", sorry i dont know what its called. I couldnt tell if something's wrong with it.

Anything i should test? I have a multimeter.

 

this forum is active more than i thought! awesome!

well here's the Thermistor? whatever it's called, as far as i can tell it's not blown, it has some black shade on it, anyway you're the experts so..

 

and thanks a lot guys for all the replies

btw i was powering up through a cable extension, i just tried hooking my laptop and baam! no power!! its either the extension that made the short (that's why the UPS fuse was blown) or could it be the TV has a short and blew the extension!?

should i try the TV on another surge protector?

 

just gave it a test again directly in wall plug, the 10A fuse blew up, i'm getting the 15A on Monday so will let you know