LCD Monitor Won't Turn On & Has No Power & No Standby Light Troubleshooting & Repair

[scoizvisagie]

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.

[OthmanAlikhan]

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?).

[electronicshelpcare]

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.

[wladcachelma]

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

[KeepOnTesting]

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

[tforever]

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.

[pidor]

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

[hectorberumen]

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

[rostatocorpuz]

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

[guruji]

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.

[hectorberumen]

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?

[bensoncanafranca]

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

[greenmarine]

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.

[Wandalf]

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?

[MustafaMustafa-oytj]

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?

[vishuroy]

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.

[iannucciaudio]

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?

[sweetypie]

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..

[denisemoultrup]

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

[kamalraj]

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