Five years after you have published this video and still the best practical illustration of fault finding I have ever seen.... 25 years in the electronic trade myself. Well done.. to the point and straight forward.

Thanks for the video. It was helpful to see the troubleshooting process. For the benefit of future viewers, the video boils down to: 1. Checking voltage across the circuit to see roughly where the issue occurs. 2. Replacing a bunch of capacitors that seemed faulty (but it turned out they were OK?) 3. Replacing a transformer that seemed faulty (which was faulty and this fixed the issue). It's good to see the tiny tips and tricks used in the video (e.g. bridging the 3.3V pin with the ON/OFF pin to mimick pressing the power button the circuit?).

Awesome video. I just wish everyone could convey their message as clearly as this gentleman.He has a way of explaining things that everyone can understand. Kudos to you sir.

Thank you man ! I've fixed my old monitor. In my case it was a fuse !

Wow! My friend that meter has definitely been around :)

my monitor power supply has 8.5Vdc at output of main bridge rectifier and 0.14Vac at output of switching transformer no output voltage but it shock me even switch button.

thank you, in my case was the TL431

I dont see you fix it yet. But i can tell you are professional

No entendí que hizo, cambio el transformador, y que valor de resistencia utilizo para las mediciones.

Hi boss how to repair low voltage output driver led thank u pls help me

Hi Thks for your guide.Mine is a bit different than this psu. My model is ADP-40AF of an acer flat scrren. Blowing fuse plug now. Cannot find exact fault.

Yo tengo un chasis igual, y no encontré ningún componente abierto ni en corto, todos los capacitores están en buen estado, no hay corto en los transistores, que elemento podrá estar dañado?

Thank u this is very useful to me

why did you not put back the transformer? or did you replace it with new one?

Mine was a blown capacitor and a solder point that came loose, total cost of fix was $1.95 and an hour of my time.

Thank you for the video, I am subbing. If you plug the power into the monitor and the indicator light blinks once, but you still can’t turn on the monitor, what do you think the issue might be?

Please need help. I have LG monitor my pc runs good (tested anoter TV) but my monitor says no signal. Cable is good. What can cause it at monitor. Whats the problem?

Thank you my friend

Admin br..when I connect my LCD AOC monitor with UPS , UPS turned off its getting of but when I unplug the monitor thn the ups is going better, what's the prblms in monitor pls help me.

Hello sir! i have a similar problem. The voltages on the output pins are flickering and not stable and the tv is not turning on.. Checked capacitors or any other burnt signs and havent seen anything suspicious. Do you have any clue to where i should start measuring or removing first?

Hi been trying some solution ..got temporary Solution by using my tv as monitor by connecting hdmi cable cause its working but need to know whats the reason why my laptop display not working..any idea.its great help.thank you..

On my samsung plasma tv that has no power or standby red light. I took the back of tv off.i looked at the front of the tv and i see 4 small dime size white dots. And i looked at back where they are coming from and there are 2 black with silver holder. I took it off than i got 3 white dime size dots, right behind the black and silver bracket

I am getting 2.5v from output. What should i do?

sir can your please tell us how to check COUPLER which connects two circuits together from hot to cold

thank you

my TV can't go on it's a Telefunken 55" model TLEDD5-55 FHD

Wow this is awesome 👏🏻

Why ends the video recording

My tv stop working no power.can you help me

5volt aur 15volt dono blanking hota hai key?

If backlight not turn on...it makes monitor down ?

sorry bit it wasnt clear what terminal points in the connector that you jumpered out (or bypassed) . thanks

Hi Sir, thx a lot for your precious video. I think that my power board (samsung 19'') have the same failure of your. In your power board the short are in the primary winding? Practically all inverter has a primary "short". Moreover, how is it possible that a broken inverter (section for high voltage power led lamp) prevents reading the low voltage of 5V at the output of the board? There is something that is not clear to me

I have a 42” element tv the model # is elefs421a input power # ac120v-60hz,75w the power light come on but no picture or sound what wrong

@IsDeno24 can you find me this chopper transformer SPW-118 from DELL 22" powerboard?

That screen motherboard looks less complicated than the one I have 🧐

Are the voltages marked on the board?

Same card new chahiye, kaha se milega aur approx price kya hogi? Because mere case me power supply ki IC aur backlight LED ka step up transformer bhi kharab hai jo mil nahi raha hai

May I request a schematic diagram of that printed circuit board to know the path layout.. If you check the component in resistance circuit board the value of component like diode, resistor change. and there is no exact value resistance test to be measured whether it us defective or not. Unless you re. Move it from the circuit board.

Amazing you had no voltages before you turned it on!

What was the problem? A coil?

I have LG model 65UK6500AUA, when I it turn on my TV with in 30 to 60 seconds it turn off and then turns on again. I can push the off button on remote and will turn off. I read couple of places it my sleep timer is set and for me to go to settings and turn off sleep timer the only problem the turns off to fast for me to able to do that process. Help

Tip: don’t use such a stiff bristle brush to clean the board and don’t be so rough. This could make your problems worse if you dislodge something that was already working. Compressed air is best or a smaller detail brush.

I REALLY NEED HELP the monitor is a mg248q, when I plug it in the indicator light comes on right away and stays on at all times unless it unplugged. The display port is broken because I broke it. The other ports are fine but nothing shows up on the screen when I plug other things in and I can't get the monitor to do anything its just a black screen no menu PLEASE SOMEONE HELP I CAN'T FIND ANYTHING ONLINE!

sir you shorted two pins on the connector. what are those two pins for

My local Burger King got rid of two NEC p462 multisync monitors I disassemble them and cleaned them thoroughly one of them turned without a problem I been using that one it's what I watch TV game and run my pictures on the other one the after plugging in it and turning it on the screen lights up then goes black and a red light begins to Blink on the bottom right corner of the trim then turns off the entire system what could be wrong question

What is the name of that transformer and what is the value of it?

what do u call to the last one u removed? is that a inductor coil?

You could probably find a bigger brush to dust off the board if you tried really hard !! Hahahaha !!

Very nice video. I have lg 42lf20fr. Problem - When I start the TV it turns on, picture displays for 3 to 5 seconds and then the TV goes back to standby mode. Power LED remains on. It is like TV has been switched off. Any idea of what can be the causes? Thanks in advance.

Pls good evening my name is Peter and am a computer hardware and want no how we use meter to check diod and capacity.

Without the XMFR, there will be no high voltage for the fluorescent tubes, so the display will be black. I had one of these, one of the fluorescent tubes was duff, dragging down the output, the power supply protection circuit activated and turned off the supply to stop the smoke from coming out. Tossed it and went to the Salvation Army Thrift Store and found one just like it for $9.99.

Last step when you remove the coil Did you replace it or solder it back Waiting your reply

hello I have a sansum monitor and I don't know the IC number of the source, is of 8 pins, help me please. s/n syncmaster E1920NX..THANK

Bro y diode shows reading double side

Sir,my aoc e970swnl monitor power controler i.c damage and destroy i.c value how can i find i.c perfect value

sir blaster is faulty plz open caption complete check plz blaster or pfc idont know its name

sharp t v ki e h t shot ho gai hai or e h t ka nambar mit gaya hai e h t ka nambar kese pata kare bataiye

Bhai Meri AOC Monitor ki power supply me problem aa gai hai usko thik kar do...

very gooood

YOU FIXED IT BY REMOVING THE TRANSFORMER?

inductor problem ?!

My monitor wont turn on now but sometimes it will turn on if i keep plug and unplug and every time i do that the power led turn on and off to can you help me whats the problem?

Sir i have wansa smart tv wle49d8856s its starting with smart tv loading then wansa and after that nothing but screen light can you or any one have an idia of where to get its firmware i will be greatfull

Sir meri lcd power saving mode me gayi huvi hai ..,

Smps border k 24V YA 12V Kasa la sakta ha.khya sa. And Kitna AMP?

ajay शिवा इलेक्ट्रॉनिक सिरोंज

MÜKEMMEL

Diodes should be removed prior testing

Super boss

sir plz tell me beeb was ok upper side and lower side its give readings which one is ok??? whats da name of this. is this blaster??

когда вы заменили на новое устройство, которое вы распаяли в 9.12 минут ?? , я не видел новую пайку

fist time no power my card then i chang ic after come power but not led come but monitor not on white is problem

sir my TV Philip 32pfl5624h/12 red light blinking what is d solution

Sir I want To learn Lcd Led Repairing, Can Anybody Knows, Who Can Give Me Classes

how to discharge big caps without fireworks

Sir ic831(pls ic number tell me 8pin ic)

I wish you could do some talking for us beginners intermediate to understand what you are doing.

Watching my friend👋

Repair led power supply board in tamil from youtube

well did you fix it or what. need to talk explain it. thank you though

Power doesn't not turned on for somedays and again it turns on after somedays. Anybody ever face this same problem? Please help..

کیا کیپیسٹر ڈایوڈ کی جگہ کام کرتا ہے؟ جیسے آپ نے پہلے ایک ویڈیو میں کیپیسٹر کے دو ٹانگوں کو جوڑ کر ڈایوڈ کی جگہ لگایا تھا فلپس کی ایل ای ڈی میں۔

Maybe this board is Samsung.

Dell monitor hai.... solutions batao

see otto

Oh great, an electronic mime.😊

My dear friend, couldn't you find a bigger brush? :))))

nice.video

Sumsung LCD monitor Syncmaster SA10, Power হঠাৎ অফ হয়ে যায়, কিছু সময় র পাওয়ার আবার আসে, সর্বোচ্চ এক মিনিট চলে আবার বন্ধ হয়ে যায় ৷ কি সমস্যা হতে পারে, জানাবেন প্লিজ ৷

VIDEO FATTO VERAMENTE MOLTO BENE MERITI TANTI LIKE

Please short the Electrolytic capacitor thy bite

Moniter on hota hai turat off ho jata atomatic

ویڈیو کو دیکھ کر مزہ آگیا

mirs ok

How to test a Resistor in a circuit kzfaq.info/get/bejne/ftF8abOBqcy7YKs.html&t

Im not trying to hate or anything but I would highly not recommend this video for anybody for a couple main reasons. 1 there is no guidance or step by step directions which is highly very important when using a voltage meter with live boards and electricity. 2 you don't tell or show anyone how to use or what setting should the voltage meter be on and the connections not showing or even mentioned when switching modes to live power, which is very dangerous. Having the the connections from the first testing and not switched can electricute the people that doesn't know anything about having to switch them. For future videos that you create please specify the main important safety concerns with basic step by step instructions. I say this cuz I do not know how to use a multi meter on every mode and what connections do need switched. But dc I do know and 1 other but not a.c. mode. Although I have had used a.c. mode before with live wire but it was already setup by a friend that knew how to use it and also explained to me on what way the mode and connections go for a.c. but since I ain't used that mode in a long time I forgot which way it all goes

Mine just beeeeeepppppppssssssss

Bolkar samjhateto air samjhme achoo Tarah se ata

bhai m karnal se hu... meri aoc 16" ki tft hai please bhai 9992813783