What does it mean on a TCON board CPV CKV CKVB STV STVP OE XAO RL UD VGH VGL

In this presentation several electronic concepts are developed in connection with the TCON board in a TFT LCD TV and the operation of the gate driver. The electronic content of this chip is detailed. Thus we find a bi-directional shift register, a level shifter, a voltage follower and logic gates including NAND. The operation of this assembly requires various voltages either in logic form such as the CPV, CKV, CKVB, STV, STVP, OE, XAO, R/L, U/D signal, or in analog voltage form such as VGH and VGL.

[@feroztejani1974]

Excellent sir Superb Never seen panel explanation in such depth Thank you for sharing your valuable knowledge and taking the the pain to create such a great animation

[@ministeriomundialliberando8403]

Excellent! It is the first time I watch this topic explained clearly. Thank you for that!

[@MrBvsmurthy]

Excellant. చాలా బాగా explain చేశారు మరిన్ని వీడియోల కోసము ఎదురు చూస్తున్నాము..

[@ProHackHD]

Your presentation is very beautiful.

[@ktccinemas]

Very much useful information to everyone, after this video and your demonstration the root cause of the failures and theory of the lcd working with various digital signals I understood. Thank you so much 🙏🙏🙏

[@nicanormendoza517]

like others said ,the BEST word for u SIR is EXCELLENT..GOD BLESS

[@saicharan8696]

Great job sir, very very thankful to you for such knowledgeable video, no words to express how much I like this video, kindly do more such knowledgeable videos, thank you🙏💕

[@saarike]

Suberb! My humble humble thanks for this extremely great vid.

[@jarguedas]

I have no words to thank you for all the information in this video and all the rest of the videos related to this topic! I have been searching on the web for a T-CON explanation like this for a long time, thank you!

[@msraviraj1]

Excellent explanation with Animation. Very useful Thanks

[@eletrohelp-assistenciatecn3907]

Incredible... I've been looking for an explanation like this for a while, congratulations...you've gained another subscriber!

[@Swenser]

Thank you. Until now, many Indian videos without English subtitles only available.

[@Hafidh771]

Very informative and clearly explained n displayed indeed. Makes more sense than reading from a pdf... more videos of the series will be highly appreciated... thanks for sharing.

[@jovenu1634]

Excellent! I'll have this saved so I can view it time and again. Thanks a lot for very clear explanation!

[@electromagicworld5380]

i m very impress with the knowledge share by you............keep it up sir..

[@lakewkidane7340]

Very remarkable explanations ever seen.Thank you very much !

[@gwolf8807]

Just amazing! This video is so professional and helpfull. Thank You!

[@256Sarath]

A very good tutorial and one and only I have seen. Thanks.

[@hamzaejaz502]

Excellent Explained. Thanks Giving Us Very Good knowledge.

[@Oldisgold1959]

Very informative video.a must watch for led tv technician.thanks .

[@sajusebastian4991]

You are really good.For learners best place to look.

[@zbyszekskibinski]

I think that CKV signal is NOT the same as VGH odd/even or LC 1/2. CKV is a Square wave (eg 30kHz) whilst the latter two are simply DC voltages pulsing alternately on very low frequency like every 3 seconds so DON'T CONFUSE

[@boybravo689]

Tnx for your presentation sir well explained more power to your channel

[@kkb4087]

Excellent Sir, work of Knowledge sharing

[@roderickbalolong6795]

Thank you for sharing, very interesting and informative video about LED TV panel.

[@andreyace8768]

That's great! Thank You very much!!! Peace and good to You! 👏👏👏👏👏👏!!!!

[@pag7910]

Superb sir.... Good explanation with good knowledge. Would like more videos related to panels....thank u sir......🙂

[@ElektroMudah1618]

Di youtube yang membahas tentang timming control yang sangat detil dan mendalam hanya anda dan terimakasih

[@birbal5895]

Very knowledgeable video. Thanks for sharing. Sir 💐💐

[@ssee9130]

Extraordinary knowledge sharing thank you

[@dadtechmech]

Very informative tutorial keep on uploading great

[@oswaldfraser4946]

Beautiful,I would love for you to continue to post more videos, thank you.

[@fernsgilbert]

great and beutiful explaination thanks a billion, God Bless

[@futuretronicstechnology3668]

Excellent Explanation ❤️ Thank you...

[@thirunahariprabhakar6560]

Extremely 2good Exlant explanation Sir

[@laxmikadam5906]

R/Sir, very nice informative video you have made.Congratulation.I am from India.

[@IntrospecThi]

Gorgeous, stunning explanation! Thank you very much!

[@kaluvanhariharan4256]

Excellent video, really informative.

[@zbyszekskibinski]

This is the best video on KZbin ever but there are a few technical points I still misunderstand. If clocking signals (CKV) are responsible for scanning particular segments of the matrix (plus odd/even lines how do we explain the scenarios in which e.g. we have the image of the object falling from the sky. From your video I understand that these clocking signals are only scanning (switching the TFTs) of entire display roughly at the same time (left to right or right to left, It doesnt matter here) so how do we achieve the image of say a bouncing ball if we the shift register turns turns the odd lines to on and off sequentially which translates to the same on the TFT Gate, do you understand what I mean?

[@elearningélectronique]

the execution speed of the gate and source driver is of the order of nano seconds. The animations in the videos are just an illustration of the operating mode not at the real speed.

[@zbyszekskibinski]

@@elearningélectronique Oh I know that but say you have the image that is refreshed 60 times per second (60Hz) and on the screen a person kicking the ball. The ball is going up which corresponds to the thousands of frames being refreshed and displayed. How then the object ( here: the ball) can be shown as moving upwards if the horizontal scan is only switched on and off ( the entire screen) It can be eiher 1 or 0 on full screen. Its binary and sequential. This doesnt allow for random switching up progressively so the pixels are switched on higher (according to the position of the object in the screen moving on upward motion) I hope It makes sense to you I can't explicate It in more detail. But overall, you are making TOP videos Sir. You are the best

[@VaibhavPatil-hl1eh]

Thanks for sharing your valuable technical knowledge & time 👌👌💐💐💐💐 GBY💐💐💐💐

[@burhanuddin127]

What the f***! are you giving this all for free???? Are outta your mind???? Thank you so so so so much brother.....

[@dineshyadav-ng5fb]

Very nice knowledge sir Thanks

[@chalouatimohamed2701]

thank you very good lesson

[@deuce08v.68]

Vinaka sir very clear

[@mixme8655]

Thank you very much new subscriber

[@cristianluchian4907]

Thank You for this tutorial !!

[@Swenser]

I'm working on a TCL tv.55 inch Things seem to be simplified further. Only single ckv test point and single stv . No segmentation done at all it seems.

[@ram0973]

If screen is gray, it means, we have no VGH but VGL is present. So mosfets are opened by themselves?

[@elikamil7651]

thanks you for excellant tutorial sir

[@MajapiMayekiso]

Good explanation 😊

[@sohelahmedpolash4044]

Video was good

[@ROVITTv]

Thank you

[@arabi0146]

كل التحية. والاحترام والمحبة

[@Kiranbhai_n_desai]

Well explained....thanx

[@reinhardtonk1510]

Thak you so much! really!!

[@bstelectronics9627]

Very nice explained

[@agededave3546]

Well Explained . You're. Great!

[@williamchagas9710]

Incrível, explicação top

[@RSAT01987]

Good job

[@goodbyewalla]

Wow perfect !

[@bzdzgwa]

What is an MLG signal used in COF instead of VGH?

[@elearningélectronique]

MLG stands for Multi level gate : 2 level of VGH example MLG-H (VGH1) and MLG-L (VGH2);

[@santonics]

Thank you so much sir Please sir try to make a video on OLED Display

[@tahanas]

Thank you for this nice vedio

[@gladysknight50]

Very informative

[@subhashgor5507]

Nolej full vidio thanks sir

[@junweslubanate7006]

Tnx very imformative..pls use english narrator so we can fully understand.

[@lalnewtech]

Excellent sir

[@yehtut3209]

many thanks, sir.

[@전기초보]

Wow good, thank you

[@Arun-yv3us]

Good Job! Thanks

[@smartcenter4328]

Amazing content!

[@SantoKhanProject]

Thanks Fin Video

[@marcoharo5843]

Excelente información

[@samithetechsavvy6485]

Thanks you very much 🙏

[@tankeratthu9504]

Thank you vẻy much! :)

[@perumalv5807]

Very good video

[@dtayag344]

good info

[@sabasri1881]

Supper sir

[@zinelabdinemekk8927]

ماشاء الله ولااروع ممتاز

[@elearningélectronique]

شكرا يا أخي

[@huynhu4605]

Chào bạn, tại sao phải cắt đường ckv ckvb stv, khi màn hình bị nháy. Cảm ơn bạn nhiều

[@bzdzgwa]

How STV signal is distributed between gate drivers? I see that STV signal goes into first COF chip. But what happens next? Is it modified by the first chip before it arrives to the second chip? Is it connected to all COF chips in parallel?

[@elearningélectronique]

The COF chips being of the same model, it works in the same way but one after the other because these chips are placed in cascade, in other words in series. So the STV signal is first transmitted to the first COF then arrives at the second COF and so on.

[@bzdzgwa]

@@elearningélectronique So in order to fix missing STV i have to connect it to the first COF driver only. I cannot connect it to 2nd od 3rd driver, correct?

[@hadireg]

👍👍

[@anilkushwah8571]

Sir thoda besic component ko samjhaye transistor Or mosfet please 🙏

[@yeshuledtvrepairandd2hinst355]

Fault finding video sir

[@m.kramakrishnankannan3857]

Super 👍👍👍

[@tamilsonguniversal]

Sir pls , what is the STV OE voltage?

[@elearningélectronique]

on average it is around 3 volts

[@leodj4644]

Increíble video. Lastima no sean en español

[@hakikosaber1645]

Thanks.

[@mbahkimcil6472]

Sooo much help!!!!!

[@giricyber-ps8420]

Awesome work of Knowledge sharing sir/mam, Key things i like here, 1. Narration flow with right words 2. Explanation of OE and XAO at the Later end to avoid confusions. 3. Animation to show image retention. 4. Basics of Flip flops, Level shifter, signal deformation due to parasitic effect & last XAO signal enables based on Voltage comparator. 5. For consolidating all names from different vendor TV (LG, Samsung). Thank you so much!

[@elearningélectronique]

thank you sir

[@koilinet2090]

Thanks a lot for the information.God bless u and keep them coming

[@kapilagunawardena356]

BEST explanation ever on KZbin.... WAIT... May be everywhere.

[@rondevilla193]

very important to learn, it comes from the very basic of seven segment digital display, the shift register that most led tv technician ignore or dont really understand since they can repair most of the problem by blocking or cutting one side connection that disturb t-con voltages and signals when panel is faulty.

[@sreekantpattanaik9073]

Sir , I accessed many books, internet, You Tube, none of them satisfied me. This video cleared all doubts. Thanks a lot Sir.

[@hoax2204]

I learned to understand screen from here to repair, thank god so much 🎉😅

[@MarlosB]

Great video, both the content and the presentation are 10/10. I understand that double images are caused by crosstalk. As TVs gets older resistance and capacitance changes making it difficult to OE control it. Thanks so much

[@Swenser]

Best effort of describing the timing I've seen so far. Not an easy topic to grasp but I'm getting closer. Thank you.

[@mixme8655]

The best video ever been watch thank you sir for sharing.

[@vipulakularathne3664]

Thank you Sir..... vary vary important and rather understanding all the techniques.❤❤ Please sir can U make a descriptive video for the bonding process.

[@ministeriomundialliberando8403]

Extremely amazing. Very profound and at the same time presented in a simple way to be comprehended.The most clear video about this topic I've ever watched.

[@seemakhalidseemakhalid352]

Most Respactable Sir. Iam Muhammad khalid khan Electronic Shope Pakistan karachi. Very Nice information LED Think,s a Lot,s most Respactable Sir.