Don't Miss


Burst Capacitors Found In AFTRON LCD TV

By on July 23, 2019
lcd tv repair

 

 

 

 

 

 

 

 

 

 

aftron lcd tv repair

This TV belongs to my relative staying around 20 Kms away from my home. She brought it to me with the complaint that there were some electrical faults in their house, after which this TV became dead. As usual, first duty is to open the set and do a thorough cleaning. This set had around 18 screws on the back! I saw mud inside bottom of the TV, which had peeped in during the floods that hit their house, which is near a river. This TV was lying dipped in the water up to the speaker level, after which, one electrician dried the TV in hot sun for many days before venturing to switch on.




It was working when they tried and served them well until now. The remote control got lost in the furious floods, that were swirling around the house. (The family was rescued and moved to a faraway place and could return only after a week or more).

how to repair aftron lcd tv

The above two pictures would show you how much mud had got stuck inside. I cleaned the inside thoroughly using various brushes and blower and also cleaned the speakers well.

fix lcd tv

I saw two capacitors burst on the power supply board, saw burning marks also under the main filter capacitor. Replaced all the electrolytic capacitors in the power supply board.




I also replaced the micro switches on the panel, as these were found to be defective. As no remote control was available in the market for this set, controlling from the panel was the only way.

how to fix lcd tv

lcd power supply board repair

Checked for any strained components on the mother board. Checked ESRs of all the electrolytic capacitors on that board and found these to be ok. Hence reconnected the PCBs and applied power. The TV worked fine! So, fit it back and left it for trial run by my wife, who used it for a few days until my relative came to pick it up!

how to fix and repair aftron lcd tv

how to repair lcd tv easily

These are the defective components replaced:

bad capxon capacitor

No, no, I will not forget; this double satisfying job also got collected to the bag!

This article was prepared for you by Parasuraman Subramanian from India. He is 69 years old and has more than 30 years’ experience in handling antique equipment like Valve Radio, Amps, Reel Tape Recorders and currently studying latest tech-classes conducted by Kerala State Electronics Technicians’ Association. He has done graduation in BBA degree, private diploma in Radio Engineering and retired as MD of a USA company. Presently working as Consultant to Hospital and other institutions.




Please give a support by clicking  on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.

P.S-If you enjoyed reading this, click here to subscribe to my blog (free subscription). That way, you’ll never miss a post. You can also forward this website link to your friends and colleagues-thanks!

You may check on his previous repair article below:

https://jestineyong.com/caution-never-keep-one-induction-cooker-on-another-for-testing-a-lesson-learnt/

 

Likes(73)Dislikes(1)

10 Comments

  1. Albert van Bemmelen

    July 23, 2019 at 7:00 pm

    Another job that required a lot of experience but also a lot of cleaning! Something you always do with great care and patience!

    Likes(2)Dislikes(0)
  2. Yogesh Panchal

    July 23, 2019 at 11:30 pm

    Good job! Sir

    Likes(1)Dislikes(0)
  3. Robert Calk Jr.

    July 24, 2019 at 5:03 am

    Good job, Parasuraman!

    Likes(1)Dislikes(0)
  4. beh

    July 24, 2019 at 10:01 am

    Like your other articles also this time you put time and effort to rescue this TV. God, bless you. and thanks

    Likes(1)Dislikes(0)
  5. Ghashaan

    July 24, 2019 at 10:33 am

    A great repair! Electrolytic capacitors are the most frequent culprits.

    Likes(1)Dislikes(0)
  6. Waleed Rishmawi

    July 25, 2019 at 12:29 pm

    Good job my friend. I am sure this family were happy with their tv up and running. Keep up the good work.

    Likes(1)Dislikes(0)
    • Parasuraman Subramanian

      July 26, 2019 at 1:19 pm

      Yes, they were! They even thanked me again when we met at a family function held recently! That's the returns we get, which serves as fuel for our continued service!

      Likes(1)Dislikes(0)
  7. Shedlite

    July 27, 2019 at 12:54 pm

    Good job sir, I from Nigeria, you have proven the sacrifices of humanity service!

    Likes(1)Dislikes(0)
  8. Charles karonga

    September 8, 2019 at 11:40 pm

    I always follow your great work sir your repairs always rejuvenate my spirit to do more on my work that I would otherwise giving up.Well done

    Likes(0)Dislikes(0)
  9. Dissanayake

    August 24, 2020 at 11:51 pm

    How to aftron tv aflcd3252ahd, without unlock pl help me

    Likes(0)Dislikes(0)

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Free Report