Futile Attempts By A Techie Necessitated Panel Replacement In MI LED TV L32M5
This TV was picked by a regular customer from somewhere and brought to me seeking possibility for restoration after another technician made futile attempts to bring back the display. On checking, I found that the TV was getting on with a blue screen with absolutely no trace of any display. I opened the TV and looked for the work done by the other.
I saw that attempts were made to revive the TV by cutting one side of the input tracks to the panel and rejoining it and opening the other side. Let us have a look at the inside of this TV and the cuttings:
Since the usual tricks made by almost all technicians to bypass an internal short of the LED Panel has evidently failed in this case, I suggested to the customer to go for a replacement of the panel, which he accepted. Unfortunately I am not much experienced in replacement of panels and the associated complications like adding board, loading suitable software for interfacing etc.
I took the TV in my car and entrusted the work to another techie friend staying around 12KMs away from my home, who took it to a faraway place (around 60Kms) where another of my techie friend was doing the panel bonding and replacement cases exclusively. I am sharing a snap sent by him, which will show you the modifications done at the scaler board level, though the image is not sharp and clear enough:
Perhaps you can make out that a T-con Board has been placed for interfacing the new Samsung Panel and new interconnecting cable has been fixed to the mother board. The details of what kind of software modification was done will not be revealed as that would remain as a trade secret with such panel bonding technicians. Perhaps I would put some efforts and learn to imbibe that if time and facility permits. He brought the TV on the same day night around 11.43 PM until the time of which I had to remain awake, engaging myself in other repair works pending with me.
This guy had to travel again in the night to another place which was around 222 KMs for setting up a video hall, which work entrusted to him by a firm. Well, I felt pity for this guy, as he was toiling himself in such jobs for the sake of his living and taking care of his old age parents and his family as well! I met his mother who was a 95 year old lady in his house when I went to give the TV and paid by respects too. Now, let us look at the result:
I allowed the TV to run for a long time, before calling the customer to come and pick it up. Mission accomplished with a lot of satisfaction getting added to the collection.
This article was prepared for you by Parasuraman Subramanian from India. He is 74 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.
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Waleed Rishmawi
July 12, 2025 at 3:04 pm
lots of traving and hard work to get this fixed. I hope it was worth the time and effort put into it. have a blessed day
Parasuraman S
July 12, 2025 at 5:43 pm
It is a part of the thrill that we all enjoy when bringing a set up! Thanks for your comments, dear friend!
Yogesh Panchal
July 12, 2025 at 5:33 pm
Good Job!Sir,
Looks like that guy cut few more lines other than CKV Lines.
Parasuraman S
July 12, 2025 at 10:55 pm
Looks like that. Thanks for your comments!
Albert van Bemmelen
July 12, 2025 at 7:07 pm
After reading this repair it strengthens me in the understanding that too much trouble is going on in TV repair land. Although I try to keep up with the technical background specs of these LCD TV panels. Therefore I recently also bought Kent Liew's new TV repair e-book that hopefully soon will be distributed along with 1GB of interesting service manuals and other download info. I say hopefully because the previous time I also had paid for a new ebook but didn't hear or receive any downloads from Kent afterwards. Assumably because Kent had strange internet provider issues that time?
Parasuraman S
July 12, 2025 at 10:57 pm
Oh! That is news! I have bought many books from him and got downloads immediately after payment. But this was a few years back. Probably they have some network issue. Many thanks for your comments!
Anwar Shiekh
July 12, 2025 at 9:41 pm
Cutting tracks bothers me, but in the end, you fixed the issue.
Parasuraman S
July 12, 2025 at 10:58 pm
I too do not like cutting the tracks. But, believe me, there are many TVs still working for years after that, which baffles me!
Humberto
July 15, 2025 at 12:15 am
Excellent repair, very well explained. Thanks for sharing.
Parasuraman S
July 15, 2025 at 8:39 pm
Many thanks, dear Humberto!
Mark J
July 13, 2025 at 2:22 am
Parasuraman well done on the repair. You always get the job done. Thank you for sharing.
Parasuraman S
July 13, 2025 at 9:36 am
Thanks, dear Mark!
Imoudu. O
July 13, 2025 at 4:32 am
This your guy must have put a lot of effort to resuscitate this tv,moreover the repair baffles me, for i never thought a combo mother board can be modify to the extent of adding a Samsung t con board.It's a plus to his knowledge. Thanks sir.
Parasuraman S
July 13, 2025 at 9:41 am
The panel bonding experts are specially trained to handle tricks and tips to handle panel related jobs, without which they cannot survive after having to invest a very huge amount for the machinery. Sometimes, it might take about 3 years to recover the cost and reach a break even. Option of customers to go for a panel change is dwindling due to dropped prices of new TVS with 3 to 5 years' warranty. Moreover, TV viewers are also becoming lesser and lesser because of excessive use of very convenient mobile phones, tabs and iphones!
Many thanks, dear!
Muykit
July 14, 2025 at 3:02 pm
. The panel bonding experts must be having enough screens and electronic boards for 'marrying' purposes for TV continued operation. Besides, to facilitate their work they have sufficient TV software for tranferring to TV ICs. All that makes them come up with SamsMi TV, a Samsung and Mi TV combination. I hope non of the manufacturers being upset, will come after their respective portions. Making a perfectly workable union by panel bonding is a whole lot less strenious than the general TV repairs you always carry out, expert Engineer Parasuraman. I respect your frequent insisting that you are not a TV panel bonding expert, but it doesnt seem like its not easy for you. You can easily become an allrounder in the TV repair trade, you see, your massive readers have missed an important lesson about the practicalities of panel bonding. Just as you give TV bonding a wide birth, similarly, I dont see myself undertaking the fear inducing exercise of cutting CKV lines.
Parasuraman S
July 14, 2025 at 7:27 pm
Many thanks for your detailed and elaborate comments containing important points! Panel bonding requires a heavy investment! I am not running a shop! I work from home as a hobbyist! Thanks!
Muykit
July 14, 2025 at 4:05 pm
You may never know how many repair attempts were used. Perhaps short killer method was applied before making a desperate attempt to reinstate the panel. You may first choose a more dangerous approach but realize too late about a safer method. Cutting CKV lines amounted to nothing. Too little, too late, could have been the most likely situation someone found himself in.
Parasuraman S
July 14, 2025 at 7:29 pm
Yes, I do agree! Short cut methods are not long lasting apart from fetching bad reputation! Many thanks!