Samsung TV UE46F6800, clicking, keep rebooting, repair

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[@Fred-B]

That fault was my very first electronic repair on my TV about 3 years ago. I had absolutely no idea about what I was doing ( I have little better understanding now thanks to Sorin) and I successfully replaced the diode after a few trials and errors and got an extra 2 years out of that TV. I let you imagine (or remember) how satisfied I was when I plugged the TV back and it worked. I was the king of the world! two years later the same fault occurred, replaced the diode and.....cracked the screen putting it back together. That TV is now my testing / practice / donor board. It has a special place in my heart...I mean experience.

[@demosthenesm3770]

My friend! You are genius but this issue is psu problem. One of two led drive (slc5012) is dead.

[@korun99]

we need more tv repair videos :) you are great.only the gopro you should place more to you,that we can see like nearly how you see.

[@AyhamAssilAndroid]

0:30 it's a samsoooong :D i love ur vids man

[@KB1UIF]

You should not just bridge out the faulty LED on the light bar like you suggested. Yes it will work for some time but If you bridge out the faulty LED you will put additional stress on the remaining LED's and they will blow also. I have fixed several LED strips and its easy to replace an individual LED once you take the screen apart. I use a small heat plate and heat the strip from beneath to remove and replace the faulty LED. Its a time consuming process but that's the correct way to fix the issue or replace the complete bar. The other thing to do is turn down the back light to about 50-70% as that will extend the life of those LED strips.The manufactures push the LED strips to their limits when the back light is cranked up to 100% and that will shorten the life of those strips. The LED strips are failing even on TV's that are within their warranty period due to the excessive stress on the back light LED's.

[@navedsyed9354]

YOU ARE RIGHT >

[@neteinfo9111]

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.

[@MrBesmir7]

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

[@KB1UIF]

@@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.

[@christel3934]

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

[@frickenfixit]

I love watching this guy. He reminds me of my uncle who used to fix things with the strangest ideas. He even used to say the same timing. Get back in case it explodes. We called him uncle sketch. His repairs were sketch but they never failed! I wish I could repair like him.

[@chichamohamed2365]

Tarjam

[@pedrof.7821]

Every-night after talking to my girlfriend i see your videos until late, because they have a lot to learn. Thank you sir.

[@groovejet33]

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

[@robpet4424]

Are you vapping ? It's very bad for health . Please stay healthy we need people like you ! You, Sir, are a teacher .

[@publicojornas1787]

Power Mac G5 or Mac Pro in background? I would like to see the repair of that beauty... :)

[@AlfaKenyBody]

What if I short circuit the relays, instead of tracking the transistor? Wouldn't produce the same results or it would damage something else?

[@lidusreparation7726]

Thanks a lot Master for sharing this pleaseful moment!

[@fathihdd4821]

I have TV Samsung model code: UA46F7500 with problems pictures working normal but light flashing

[@yuanho2883]

You can fix everything (electronics). I am curious, what did you study, are you electronic engineer?

[@dinabrazilai8370]

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

[@jlvvlj2575]

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

[@grilledchickenwrap]

friend you have great knowledge :) to look at board and know what goes where and what. I am trying to understand how to troubleshoot TV board to find exactly what is short. can you send me some of your video that can help me troubleshoot ?

[@jim8230]

Diana's always somewhere in the background. When will she do a video?

[@veloc123]

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

[@grilledchickenwrap]

Great stuff friend. question. if led light is dying.. can you just remove the power going to the light ? or best way is to short it ? if short it wont the logic board see its not enough current at the LEDs and still kill power to TV to prevent start up ?

[@titodejesus6238]

How you came to the conclusion it was a graphic issue? The tv was half turning on and off and that could point to other problems. What was your troubleshooting steps? Which obviously it was not the graphic issue.

[@mukeshthakur4532]

I have same problem but all back lights are ok. This is power supply fault

[@aliasdias3760]

have you ever mistaken your liquid flux with your vaping liquid lol because they have the same bottle. i thaught you were using your vaping liquid there :) nice video you are the best.

[@Labyrnthdom]

I said that on another video hahahahahaha

[@daaudiome]

Sorin myr friend, thanks again for making us learn even more. Can you please detail your trace routing how you reached that small smd transistor and how you realized if you bridged the transistor the set will overpass the protection ?.

[@electronicsrepairschool]

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

[@burakburak1173]

@@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?

[@darkflame808]

I made a lot of money taking in lots of samsungs with the click of death. There was a whole bunch of samsungs that had used 10v capacitors on a 12v rail and the caps had blown. Many just failed without actually popping. A quick replacement of a few 70 cent parts and they were better then new!

[@sneakyquiet414]

Have same board did u ever fix ?

[@truckbaba]

Hallo master.samsung 46f8080? BN44-00635B. Thx

[@aliasdias3760]

you have to make a video about that GoPro of yours, why it is always freezing lol .

[@harakatabderrazak1]

Dear it's only the power supply issue... I repaired this fault many times in F models. One of the two LED control IC is dead.

[@korun99]

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

[@frederickirv11]

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.

[@davecc0000]

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.

[@korun99]

@@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!

[@johnloydcruzz5733]

sir i havesome question u help me

[@mathewbundi216]

WHEN YOU ARE MOVING AWAY, CAN'T YOU JUST STOP THE VIDEO ? AND WHEN YOU ARE BACK START IT UP AGAIN .??

[@Just-a-girl]

It’s sad to imagine how many appliances hit the tip due to small parts breaking..

[@Hackanhacker]

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 $$$$$

[@VictorPoulin]

YES, finally Friday ;)

[@soleh7892]

So what the solution? Optocoupler?

[@ahoorapersia4698]

Backlight issue. Thanks a lot 👍🙏🏻

[@kudzaim7251]

I have that model on F6400. It was the WiFi module which was dead! That's why it looped. If you disconnect it, the issue is solved. Simple as that. I'm still using the TV today after disconnecting some 4 years later!

[@s-max3277]

This pleasure bypass only relay "connected to current sense" if have all backlight ok work fine💪. But If have one STRIPLED with one led damaged the corrispective backlight not work or work with diffent lux! 😜💪Right?

[@frankreiserm.s.8039]

Replacing backlights in a TV is also too much work for me. I charge $400 for the job and tell my clients that they are better off buying a new TV. Frank Frank Reiser Video/Audio Service

[@Kicm2Kicm2]

Buna Sorin merci mori prof 7/7

[@sergelavallee913]

From now on, you're my teacher, MASTER. Thank's.

[@meTimetraveler]

ha today is Saturday😃

[@wonderfulworld5134]

How about a CAPACITOR HEATSINK FIN TUBE pressed over each capacitor. A repeatitive problem that needs technical addressing. Heating over 105 degrees C. will pop the capacitor some time in the future.

[@geekupindia]

Thank you from 🇮🇳 INDIA

[@jwoodard621]

Thankyou for video mines doing that too thankyou

[@payusavisit3482]

can you guide me please mine is UE46C6710US Samsung smart tv coming on with stripes on the screen and Clicking off all the voltage are complete I’m a technician I’ve tried but couldn’t get success please help 🥰🥰🥰

[@Killianwsh]

Great videos! Thank you for taking the time to make, share, and TEACH! So much knowledge and wisdom shared on your channel. (and on more than just electronics!) In my opinion one the best on YT!

[@VincentVega111]

I agree

[@ianprobert7498]

Hard to find somebody who knows what the fuck they’re talking about. Good lookin out. ✊🏻

[@kbhakta3455]

My TV having the same problem I open the back clean it out everything turn the power on still doing the same after power off left side board remove the wire connecting right turn it power on turn it off again and connect the wire and restart the TV now tv working perfectly good

[@paminos9970]

Thank you for sharing!!! Cheers

[@darthamiga]

I have a frame 3.0 samsung, does the same thing, when i cool off the heat sink, the tv starts up and works fine for a few minutes, so the main cpu chip overheats and does the reboot.... in this video, is there a way to remove the heat sink? can the heat sink be reset, or is it stuck to the chip?? pls do a video, would be fun to see.

[@Hackanhacker]

I found three big brand new samsung tv in one week with this problem (put to trash) ... now i have to many working tvs xD

[@turbiks23]

Hi mite. I got a question. Will be werry happy, if You can to answer. I got 49 inch LG 49LB5500 2years used, yesterday screen switching off for 1 sec and switching on it for one sec , and like this all the time. I dont know where can to be a problem. I would like to ask for Your advice. Thankyou

[@maxwarfield6699]

So, at 26:50 you bridged the SMD transistor to what, a ground track? Also, I thought that it was an optocoupler’s job to monitor AND to shut down things when something goes weird, how is it, that in this case, it’s an SMD transistor that can shut down operations? Please explain. Thank you kindly

[@reneroman1421]

Great video.....I have a Samsung 75" Q70R and it went black screen while watching a movie, it flashed blue every 20 seconds, I have some knowledge in electronics so I opened it to see if it had bad capacitors. With the TV energized, I disconnected the ribon cable that goes to the main board and the screen turned blue, so I assumed it was not the damaged screen, I have been looking on ebay and I have found the original power supply parts, do you think that replacing the board will solve the problem?...thanks

[@juarezcastelo]

I used to repair that kind of problem, I agree it's expensive if you do it the proper way, even without, because handling the LCD part of the TV is one of the most delicate things you do in electronics, even with all that, I used to charge around 500 pesos here in Mexico, that is 20 pounds, or 25 USD. If you are careful handling the display, the rest is easy, but is also time consuming, I think that's the main reason in this particular case it will be expensive to repair.

[@alanludlow7995]

i want to thank you for the advice about the samsung tv, i have just repaired a 40 inch Samsung smart tv version (ie : Model No : UE40F6670SB Model) and the P.S.U board has EXACTLY the same lay out, so when i put a "solder blob" on the SAME SPOT that you did...IT WORKED!! (proving ...like you said.....that the top LED strip that is behind the screen is slightly faulty), BUT...it's STILL a very good picture!! . . NICE ONE!! . . . Thanks again!!

[@BrandonDeft]

My Samsung has been turning off and on for years I got it serviced 65 years ago. Last night it went out again but I got lucky and half way though taking off back to check board and capacitors then it just turned on! I probably jinxed it....damn lol

[@eugenem9794]

thank you for teaching electronics and i even dont know anything about electronics

[@dosdoktor]

Ce faci cu Mac-ul ala din spate, este cumva PowerPC? Sau altfel zis, stii daca este PowerPC, sau este doar carcasa dar nu si componentele?

[@koefte02]

Thank You. Best Regards from Germany. Like and Abo have You.

[@Asiertxu1974]

Very nice video! :-)

[@muhaahaloa941]

Wooop Wooop nice job :)

[@gonsaloalvarez812]

Subscribed

[@nathancurtis3056]

NO LIGHT RAIL MAY BE GOOD I SWITCHED THE PINS FOR LED RAIL 1+/1_ AND LED RAIL 5+/5_ AND THE TV NOW HAS DIMNESS IN IN DIFFERENT PLACE ON THE SCREEN.I HAVE NOTICED DIFFERENT VOLTAGES FROM THE CAPS ON THE LED DRIVERS.

[@beardedscrapper538]

Which board did u work on? Power supply? I know a guy who scraps tvs. So I can swap boards with him. Thanks.

[@christel3934]

please show us what you further did to fix the tv, did the customer agree to fix the led ?

[@kravar]

Did i hear mckintosh plus in the background?

[@Dragon768_]

Plzz help me with my learning ...I would appreciate if I can Skype u for some advice with this work...thanks

[@RedmiNote-nd6hm]

They sell these backlight testers, with these you can diagnose a backlight in seconds. Nice fix anyway.

[@VladimirCiric]

Are you going to post any video on desktop components? You cover laptops, smartphones, TVs, tablets, but no desktop and I think that a lot of people are interested in that. Dead desktop motherboards,graphics cards are a problem for a lot of people...

[@petejackson7976]

Backlight issue like some jvc tv(lt-50c550)

[@Andre-tc1wj]

New to the channel to understand more on repairing PCB boards for washer and dryers. This is Great Information you are providing. Thank You

[@V_Ivanov]

An excellent teacher, an invaluable experience :o))

[@hugoboss7600]

Buna Domnu Sorin, de ce nu ati alimentat placa sursa separat , adica fara main fara LED-uri.? poate face la fel si el este de vina ?

[@sushilsaxena7038]

u r great sir we are learning a lot

[@stroise256]

for the jump solder at 26.48 min mark was a bad move.

[@jawnjw]

Thank you for all your videos you've helped me out a few times

[@jwoodard621]

So back light issue it was good thankyou for video

[@thecentralscrutinizer5105]

Xcellent Xcrements,Luv the vids so much, finally broke down and subbed.... Thanks ...and remember kiddies.... *"E" will ALWAYS equal "I" times "R"*

[@thecentralscrutinizer5105]

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....

[@provideo2894]

where is the fulte? what parts shoud change

[@frederickirv11]

Thanks very much for such an educative video sir, it's one of the best repair video I have ever seen on youtube. I have a Samsung UN46D6400...TV with the same issue containing PRW/S BOARD model # BN44-00427B can you please help me with the trace and solder point to solve this issue? Thanks much.

[@zx8401ztv]

i have never trusted leds for lighting, they just dont seem to last :-(

[@pedrof.7821]

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.

[@BenjaminEsposti]

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.

[@eman59461]

LEDs might be bad.

[@SuperMagicmido]

U made my day sir.... thank you !!!!

[@sneakyquiet414]

Solved thx 36 minutes in

[@googacct]

Maybe you could try using a painting easel to support the television rather than having to balance it on your lap or having to lay it on a counter.

[@namolokaman2393]

The top row of LEDs being dead = vignetting, an artistic effect. Call it a free feature upgrade! ☺

[@jaiho314]

italian stalian

[@alanludlow7995]

thanks for the tip..it's much appreciated (and i've been in the electronics tv repair trade since 1974)

[@KB1UIF]

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.

[@masoudmontazery907]

Good luck sir 🎉

[@Liferoad371]

well one more time i will say you fix Great info.

[@freem4nn129]

whats the cause of this ?

[@hermesdanlag2931]

Supply check

[@martinsstugis9907]

If you are right, you can bypass by adding jumper from any of working LED strip to not working, so the logic board will think that current is ok and you can remove applied jumper before to the transistor.

[@KB1UIF]

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

[@zozifamily]

You are brilliant

[@BrandonDeft]

6 to 5

[@alexander19681]

A true MASTER.

[@Labyrnthdom]

👍👍👍👍 Sorin, you are a mad scientist.

[@alydiane9654]

Marci mon prof

[@myloveccmylovecc4388]

Hello sir my tv same problem how i fix

[@mickeltater1599]

Hey sir today i have lenovo ideapad 100 same way that doing loop restart after logo what i do to repair that?

[@aminedjani4169]

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

[@ziuhenri1122]

Is that an e-liquid bottle haha

[@ahmedrayan3659]

you know my father exactly looks like you and you and him both have same profession.i'm from Pakistan but i don't know how it is possible i think forefathers were cousins

[@1956Koos]

I have same problem after a lot of tracing and trying to be to technical actually forcing the backlight on i came to same solution and went a head replacing two banks(strips) of 6 leds in total. Yes once again new shortcut learned today.

[@electronicsrepairschool]

kzbin.info/www/bejne/jIbUpJ-Np56Zatk

[@geojor]

all valuable information ...

[@prabagaran6427]

Thanks and your work really nice ... : )