Samsung TV UE46F6800, clicking, keep rebooting, repair 

I said that on another video hahahahahaha

hi, i'm not very good on fixing desktops, maybe its cheap to replace motherboard

Thanks for your response sir, I'll bring up a laptop issue soon, I'm sure you will be able to handle that

i'm not able to handle anything :) Even if you your laptop will be beeping again, you have to try and resolder the processor on the graphic side

I think your processor in not seated probably in slot.. Or may b you have changed processor..

I think your processor in not seated probably in slot.. Or may b you have changed processor..

Nope.. putting a resistor in series of led will further reduce the current flow.. What we do when a single led died in a series led strip is to replace it with replacement led or if not available, an ordinary diode..

@@ivanzsar I don't know anything repairing stuff like this but just putting in a new Resister and pretending that everything is fine sounds Extremely dangerous and stupid as hell I think that would probably cause something to short circuit and explode

most likely

i swapped the same smsc chip from another mainboard, but still no startup of the laptop. hmm..maybe that smsc was dead too :) ...can it be something else like corrupt bios. I tried to view data on SO pin of bios chip, but i see nothing on oscilloscope

S.a.j. Uffen you cannot just replace kbc chip from any board the kbc chip has its own programming data inside it for a particular motherboard. If you want to replace the kbc with similar chip then after replacing it you need to re-programme it with old kbc dump or a new working dump for same motherboard. And about your problem check if your bios firmware is not corrupted or your EC. Check which state is your motherboard in and check all alwats present rails im sure there is one missing. Well probook have commonly bios issues try re flashing bios chip.

YOU ARE RIGHT >

If the LEDs are in series and they are constant current driven, short one LED should not modify the others because the LED driver should try keep the same constant current, so theoretically it will lower the voltage.

Should test if are constant current.. some TV have constant voltage

@@neteinfo9111 I agree with your theory, however if that is the case why do I find strips with multiple leds that have failed. Some go short some go open. I believe the less stress you can put the led strips under the better. The other reason why not to short out a faulty led is you will end up with a dark patch on the screen. Don't bodge the repair, replace any faulty LEDs they cost pennies.

thanks for your input. what can i do.. please help me

Tarjam

just talking Pedro?? You do have alot to learn! And i dont mean good grammar

not everything -go pro camera he doesn't know haaaaaaaaaaaaaaaa

Why dina do you know how to rapair go pro camera?

you can see there, one pin from relay goes to plus and the other goes to the smd transistor and also to a optocoupler. Thats mean if you short the relay only, will be not enough coz the smd transistor will shutdown the power supply anyway. So i bridged the transistor, in this way the relay is on all the time and optocoupler aswell

@@electronicsrepairschool Hi. I have a question about the Samsung ue55h6590 TV, I have changed background light byt I don't now in which Direktion goes silver folie, in Direktion to backgrounds light or in direction Monitor?

Have same board did u ever fix ?

She did a top shelf one years ago...all i will say is phoarrrrr

brother,i have same tv series,where the leds flickering and then tv restarting .can you help me to find the fault dead ics to replace?pls add me on fb : cetin su

I have the same issue with my Samsung UN46D6400..tv and is seeking help to identify where to do the bridging or the dead ics as well.

Abderrazak Harakat, you see the dark part of the screen? And that Sorin said he fixed it by shorting the one dead LED? And customer is happy? It is not an IC fault.

@@davecc0000 in this case at this model of samsung its a power supply fault by a defective ic belive me.i have same issue and fixed it by changing power supply.it seems like a led defect,but its not!!the diffrence to defective leds its that the tv reestarts!!at defective led tv restarts not!

sir i havesome question u help me

I find many big brand new samsung tv with minor problens. like a broken plastic part for the power button ... tv put to trash (those tv are brand new xD) now i have to many working tvs xD $$$$$

I agree

Well they are the best so far. Also they don't last because people always put them on 100% brightness. It's like having a car that goes up to 300Km\h, if you are always at this maximum speed, the car will not last longer.

I haven't had any problems with good quality LED lighting. It's always the cheap stuff that runs LEDs at too high a temperature, or has poor current matching, or even poor connections on the LED die.

PS: 93% of the flats made, have the LED backlight voltages purposely over driven (too much voltage)....WHY??? Because LED's practically last forever compared to incandescent lighting, Hence, that new Vizio 65" 4k might last you 12-17 years if we keep the LED voltages to spec (3.4vdc or sometimes 6vdc per LED), and OH Hellz to the NO, We'll make sure your buying another TV in 2 to 3 years after warranty expires. _" So overdrive the LED warp engines Mr Scott..Warp Factor 6"_ Want a quick, no cost, done by remote way to add 5-7 years more to that 4K 70" behemoth?? Simply go into your TV's menu via remote, and go to your picture settings and turn down the backlight from "100" (Factory default) to about 50-60, You'll probably won't even see the difference, but all those little light emitting diodes will, by about 1.8 - 2.1 vdc...and they will thank you for it by shining on for another dozen seasons of _"Game of Walking Dead Thrones Breaking Bad on 911"_ ...or whatever your fav shlok slop tv idiot-box show of choice currently is....

If you bypass the led, you will get a dark area on the screen.

This is not the correct way to repair this issue. The LED should be replaced. They cost pennies. If you dont replace the LED, there will be a patch of darkness on the screen, and the remaining LEDs will fail quicker, too. Also, in electronics and TV repair since 1974. Remember to back the brightness off a few notches, too, after the fix. That's what blows them in the first place.

it's the flash ic's you hve to replace it it's always the flash ic's or ram in all phones and tablets

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VUqslWr9f4w.html