Why LCD is not displaying?

In LCD TV panels VGH,VGL,AVDD,VCOM,voltage dropping problem is very common. cause LCD is not displaying.
Why and how is this problem seen? Here are 5 main reasons glimpsed.
Video related to these problem and solution are here
#ledtvrepair #panelrepair #vcorelc

[Kgtoons]

You are the best teacher and best explainer of led tv fault

[avr.electronicpoint.]

First You are best director & photographer. then u r good technician.🙏🙏🙏

[RaakiChannel]

Good, currently very rare technician are available like you, best wishes

[SHTFFuel]

Good explain sir....this example for all technician.Nice!

[alexdsouza]

You are very good n honest person who Sincierly, share knowledge 🎀God bless u, ,There are many other guys share Half - n blackmail u to register, for their training classes, v bad.

[Fardeenfarwest]

Very interesting video I ever seen on youtube.
About drop voltage ⚡.Vgh vgl.
Well explained.
And very short video but very useful tips.
Carry on guys for your great works.
Thumbs 👆

[althirdynaihub]

the best tutorials i ever watched...deserves milion subs..

[divineeyambe]

Watching from Cameroon, Africa, this has helped me to learn more

[nalinsaminda]

Very good explanation.. You are doing Good job...Thanks for sharing ❤️👍

[Ledihatv]

Number one information for new beginner in led tv field

[dogma]

Este video es oro puro muchas gracias sigan adelante🙏🙏🙏🙏

[divineeyambe]

What so educative, it has help me to have many techniques now in Solving no display on a TV

[stanleydsouza]

Many Thanks for this details. As it helps a lot of people globally..Amazing to see nicely made video

[venusselvarajcnp]

Good information for Technicians, Thank U Very much 👍👌

[planb]

Thanks for your time and efforts to share your expert knowledge.

Your technique seems working sometimes and fair enough but VGH voltage is not an alternating pulse but a constant 30V DC voltage and likewise VGL is a constant -9V DC voltage and not an alternating pulse. So my question is, why connect constant DC voltages to LC1 and LC2 which supposed to work but with alternating PWM signals, in this case pulsating 30V to -9V DC voltages with 3s duty cycle from the level shifter chip? And secondly, how does by passing the level shifter chip LC1 and LC2 PWM signals solve the problem, if it's caused but by the faulty gate electronics in the glass panel and not by the level shifter chip on the driver or source board?

[yukihironichan]

I've watch many LCD video tutorials on how to solve this kind of problem but nothing mentioned about COF being replace guess they don't have the machine that you have to do the right job amazing.

[noisedotselectronics]

Ur every videos r useful for all technicians tq sir
By.. NOISE AND DOTS ELECTRONICS

[IrfanKhan-qtrs]

Very good explain sir
Thanks for sharing knowledge sir

[rohaband]

Waaaw! You are really a great professional and teacher!

[rameshvandhnani]

SO BEAUTIFUL VIDEO AND V GOOD EXPLANATION.AMAZING RESULT. Thank you so much.