Digital LCD TV Block Diagram

By on March 27, 2009



Here’s a block diagram of a Digital LCD TV and if possible you may print it out for future use. For your information I used to understand an equipment block diagram first before i go into the schematic and analyze the circuit functions.This is the first step if you wants to venture into new electronic equipment repair.

lcd tv diagram

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39 Comments

  1. zic

    March 29, 2009 at 2:21 am

    Dear mr.Jestine

    Anda tepat sekali mr.Jestine..penguasan teknik dalam membaca blog diagram sebuah rangkaian ,adalah modal penting untuk menjadi teknisi yg handal..
    Artikel anda ini pasti akan sangat menarik bagi saya dan "my blog reader"..

    Terima kasih

    zic
    zicelectronic.blogspot.com

    Likes(0)Dislikes(0)
  2. admin

    March 30, 2009 at 11:08 pm

    Hi Zic,
    Terima Kasih atas komentar kamu.

    Jestine

    Likes(0)Dislikes(0)
  3. oppong kyeremeh

    April 19, 2009 at 11:30 pm

    I WANT ONE OF YOUR DIAGRAMS FOR MY WORK AS
    WE CAN REPAIR SOME

    Likes(0)Dislikes(0)
  4. admin

    April 20, 2009 at 7:35 pm

    Sorry Oppong i don't carry any schematic diagrams.

    Jestine

    Likes(0)Dislikes(0)
  5. agus

    May 20, 2009 at 6:28 pm

    Dear Mr.Jestine,

    Saya sedang mencari lcd controller board yg sdh include tv input. Dimanakah sy bs mendapatkannya? karena saya ada beberapa lcd yg tdk ada controllernya. Planningnya akan sy manfaatkan sbg tv.

    Trimakasih
    AkAs

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  6. admin

    May 20, 2009 at 11:16 pm

    HI Agus,

    Maaf, saya tiada maklumat tentang informasi tersebut.

    Jestine

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  7. agus

    May 22, 2009 at 12:40 pm

    Thanks Mr.Jestine,

    Satu lagi Mr. Jestine. Saya minta petunjuk tentang projector (LCD/DLP), dibeberapa forum pernah saya baca tentang bagaimana mengakali PJ sehingga tidak perlu ganti lampu (bahkan bisa dimodifikasi dengan menggunakan type lampu lain). Kiranya bisa diberikan petunjuk lebih lanjut.

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  8. admin

    May 25, 2009 at 9:23 pm

    HI Agus,

    Maaf kerana saya bukan dalam bidang LCD/DLP TV repair.

    Jestine

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  9. srirama

    July 17, 2009 at 4:48 pm

    i would like to join the course pls send me the details

    Likes(0)Dislikes(0)
  10. admin

    July 19, 2009 at 4:14 pm

    HI Sri Rama,

    Yes please visit http://www.noahtec.com/workshop.htm

    Jestine

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  11. prakash

    November 13, 2009 at 10:14 pm

    good

    Likes(0)Dislikes(0)
  12. Steve Mbuvi

    November 20, 2009 at 2:56 pm

    Nice diagram although I needed a simplified one.

    Likes(0)Dislikes(0)
  13. dinga franklin F

    January 14, 2010 at 4:18 pm

    Greetings to you sir,
    I am a student of a technical high school, I am studying Maintenance of Audio Visual. We deal on VCD,VCR.DVD AND TV set. please send me TV circuit diagram and LCD diagram or any studying material that will of aid to me in my studies.

    Thanks,
    From Cameroon.

    Likes(0)Dislikes(0)
  14. admin

    January 15, 2010 at 5:22 am

    HI Dinga,

    Please visit this link:

    http://www.jestineyong.com/?cat=59

    Jestine

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  15. rosy

    February 22, 2010 at 2:02 am

    i like......

    Likes(0)Dislikes(0)
  16. Preet

    April 4, 2010 at 7:47 am

    why dont u explain the block diagram

    Likes(0)Dislikes(0)
  17. admin

    April 5, 2010 at 4:33 am

    HI Preet,

    This is a big subject and i suggest that you find a book that can explain all these in details for you.

    Jestine

    Likes(0)Dislikes(0)
  18. Gaby Buss

    April 12, 2010 at 5:29 pm

    Dear Sir,
    thanks for your attention to read my trouble.
    I want to inform you and other people.
    The adress you´ll find any schematic and diagram is :
    www.electronica-pt.com

    Likes(0)Dislikes(0)
  19. admin

    April 12, 2010 at 8:10 pm

    HI Gaby,

    Thanks for the link!

    Jestine

    Likes(0)Dislikes(0)
  20. sven kandika

    May 6, 2010 at 5:16 pm

    problem whit samsung le40r86bo/bp40eo.Capacitors in power supply swollen
    chanded now all volts okey byt not power on to inverterboard.The set clicks
    on an off.2 capacitors were swollen,but i changed 4 of same sort.Kan you help
    me please.
    Kandika in Ludvika Sweden.

    Likes(0)Dislikes(0)
  21. admin

    May 7, 2010 at 3:32 am

    HI Sven,

    You said no power to the inverter board. Is there output voltages from the smps? Is the inverter IC vcc pin zero voltage?

    Jestine

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  22. Chintamani Natu

    May 11, 2010 at 9:54 am

    Dear Sir
    It helped me a lot I may Contact for any further queries

    Chintamani Natu

    9881719874

    India

    Likes(0)Dislikes(0)
  23. Jatin Panchal

    September 17, 2010 at 12:07 am

    Pls give detail explanation of each block , considering i/p signnal ,o/p signal and function of block.

    Thank you

    Likes(0)Dislikes(0)
  24. admin

    September 17, 2010 at 5:40 am

    HI Jatin,

    Sorry i do not have details on this. The information for this equipment is still limited.

    Jestine

    Likes(0)Dislikes(0)
  25. antoine madi

    November 27, 2010 at 3:32 pm

    hi
    it is a very good site thanks

    Likes(0)Dislikes(0)
  26. GOUTAM ROY

    May 2, 2011 at 10:30 am

    WANT TO KNOW ABOUT LCD REPAIRING

    Likes(0)Dislikes(0)
  27. admin

    May 3, 2011 at 3:22 am

    HI Goutam,

    Please click on the respective link at the right side of this blog.

    Jestine

    Likes(0)Dislikes(0)
  28. Joseph

    May 13, 2011 at 7:40 pm

    Do you have a diagram for LCD inverters, both with single boards and with Master/Slave boards? The problem we encounter most often is a failed inverter board, and sometimes they are very difficult to diagnose, especially when there are 2 boards involved. BTW, we love your site, and we have had a subscription for years now. We've also put your LCD monitor book to good use many many times. Keep up the good work Justine.

    Likes(0)Dislikes(0)
  29. admin

    May 14, 2011 at 8:22 pm

    HI Joseph,

    You can try to download such circuit from the link below http://www.eserviceinfo.com Nowadays lcd monitors have the inverter and the power board connected. Disable the pico fuse or cut open the circuit trace (usually is the 12 to 14 volt line) if the board does not have pico fuse. After isolating the problem you can join back the circuit trace. Sometimes it also depends on the problem of the inverter board too and not necessary you have to cut open the circuit trace.

    Jestine

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  30. ARILSON BASTOS

    May 24, 2011 at 3:08 pm

    I like to learn repair lcd tv.
    i want buy LCD TV REPAIR.
    HOW MANY IS PRICE ?

    Likes(0)Dislikes(0)
  31. admin

    May 25, 2011 at 7:09 am

    HI Arilson,

    Try this link:

    http://jestinemichelle.jptv97501lcd.click2sell.eu/

    Jestine

    Likes(0)Dislikes(0)
  32. Amir Mukhtar

    May 26, 2011 at 5:23 am

    Sir Jestine

    Its very nice knowledge and now a days LCD becomes common and major changing in community mind-set so as to buy LCD or digital imaging products with respect to CRT base .

    this is an important information from your side to us.

    thanks you
    A Student
    Amir mukhtar

    Likes(0)Dislikes(0)
  33. Mosharraf

    November 14, 2012 at 11:59 pm

    Sir Jestine
    I invariably found some the problem of LCD monitors that are thin white line horizontally or vertically and black circle spot on the screen. Can you help me to diagnose those specific problems? I love your site very much.
    Thanks.
    Mosharraf
     

    Likes(0)Dislikes(0)
    • Jestine Yong

      November 15, 2012 at 6:34 am

      Hi Mosharraf,

      Those problems are cause by bad LCD panel. There is no way to repair it. You have to replace the LCD panel.

      Jestine

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  34. Boden

    January 14, 2013 at 2:26 am

    Dear Mr.Jestine...I really really interested in lcd tv or lcd monitor repairing and I really wanna be master in fix them and I wanna buy the ebooks about lcd tv/lcd monitor as you've promoted here on your blog,but I have some question...Where can I buy the lcd tv/monitor spare part??Can you provide and ready to supply me if I order to you about lcd tv/monitor sparepart from all brand?? 'cause I know it's so hard to get lcd tv/monitor sparepart here in Indonesia especially in my town..I hope you to ensure the availability of the lcd tv/lcd monitor sparepart and I'll be happy to hear that.sorry for my bad english,,thank you very much.

     

    Likes(0)Dislikes(0)
    • Jestine Yong

      January 14, 2013 at 9:00 pm

      Hi Boden,

      I have sent a personal reply to you.

      Jestine

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  35. Reniel Silva

    May 6, 2013 at 5:10 am

    What ASSP means?
    What FPGA means?

    Thank you!

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 6, 2013 at 3:05 pm

      HI Reniel,

      Check the link here:

      http://en.wikipedia.org/wiki/Field-programmable_gate_array

      http://en.wikipedia.org/wiki/Application-specific_standard_product

      Jestine

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      • Reniel Silva

        July 12, 2013 at 3:27 am

        Thanks

        Likes(0)Dislikes(0)

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