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Digital LCD TV Block Diagram

By Jestine Yong 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.

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46 Comments

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

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admin

March 30, 2009 at 11:08 pm

Hi Zic,
Terima Kasih atas komentar kamu.

Jestine

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oppong kyeremeh

April 19, 2009 at 11:30 pm

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

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admin

April 20, 2009 at 7:35 pm

Sorry Oppong i don't carry any schematic diagrams.

Jestine

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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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admin

May 20, 2009 at 11:16 pm

HI Agus,

Maaf, saya tiada maklumat tentang informasi tersebut.

Jestine

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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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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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srirama

July 17, 2009 at 4:48 pm

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

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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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prakash

November 13, 2009 at 10:14 pm

good

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Steve Mbuvi

November 20, 2009 at 2:56 pm

Nice diagram although I needed a simplified one.

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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.

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admin

January 15, 2010 at 5:22 am

HI Dinga,

Please visit this link:

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

Jestine

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rosy

February 22, 2010 at 2:02 am

i like......

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Preet

April 4, 2010 at 7:47 am

why dont u explain the block diagram

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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

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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

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admin

April 12, 2010 at 8:10 pm

HI Gaby,

Thanks for the link!

Jestine

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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.

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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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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

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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

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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

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antoine madi

November 27, 2010 at 3:32 pm

hi
it is a very good site thanks

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GOUTAM ROY

May 2, 2011 at 10:30 am

WANT TO KNOW ABOUT LCD REPAIRING

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admin

May 3, 2011 at 3:22 am

HI Goutam,

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

Jestine

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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.

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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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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 ?

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admin

May 25, 2011 at 7:09 am

HI Arilson,

Try this link:

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

Jestine

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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

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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

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- 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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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.

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- Jestine Yong
  
  January 14, 2013 at 9:00 pm
  
  Hi Boden,
  
  I have sent a personal reply to you.
  
  Jestine
  
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  - Zul
    
    October 23, 2015 at 6:19 pm
    
    Dear Mr Jestine,
    May I have the same information of the same question. Im at malaysia.
    
    Thanks a lot.
    
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    Reply
    - Jestine Yong
      
      October 24, 2015 at 9:37 pm
      
      Hi Zul,
      Sorry i don't understand your question, can you elaborate?
      
      Jestine
      
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Reniel Silva

May 6, 2013 at 5:10 am

What ASSP means?
What FPGA means?

Thank you!

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- 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
    
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sholeh

May 1, 2015 at 9:46 pm

bagaimana memperbaiki lcd tv lg 32lb9r dengan gejala input av gambar hitam putih

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- Jestine Yong
  
  May 6, 2015 at 9:50 am
  
  HI Sholeh,
  
  Bagaimana dgn RF input-ada warna? HDMI pun warna hitam putih?
  
  Jestine
  
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Mukengeshayi Kuongo shay

January 6, 2018 at 5:51 am

slt,tes livres sont ecritee que en anglais,comment faire pour le pays francophone.merci

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- Jestine Yong
  
  January 6, 2018 at 10:51 am
  
  Hi,
  
  We have only the English ebook and do not have books in French.
  
  Jestine
  
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syed musthak ahmed

December 15, 2020 at 3:58 pm

thanks for sharing LCD block diagram

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