The Risks Of No Display Complaints In TVS – XIAOMI L43M6-ES & PHILIPS 43PUT6002/56
I am writing this article only to make the readers aware of the risks involved in taking up TVs with no display complaints. Strangely, the following two cases came to me within a short span of time:
Case (1) Xiaomi TV :
This TV was brought by a new customer who happened to be referred to me by a techie friend running a repair shop in a faraway distance, who also did panel bonding and sale of spare parts. He had recently released an advertisement video in YouTube offering total services to all LED/LCD Tvs. This customer responded to it and contacted him. As the customer was located very close to my place, my techie friend who also ran three Whatsup groups; one for assistance and guidance for repairs, one for entertainment and one for buying and selling boards and parts, advised the customer to contact me. As my friend had shared the customer’s contact details, I spoke to him and enquired about the problems he faced in the TV.
He told me that the TV had ‘no-display’ problems before and one technician had made it working a few months back, but it failed again with the same complaint. Upon seeing the video offering total solutions, he sought whether something could be done on it and that’s how the TV was brought to me to have a look. As the customer looked to be a straightforward gentleman and mentioned about a techie doing some work on it before, I kept myself forewarned but confident to open and check. The TV was powered to check the complaint and confirm. I opened the TV and again applied power to study the response.
Click here to check out Humphrey’s ebook on LED TV Panel Repair
The backlight came on and was steady and the LED light of the optical input also was on indicating that the no display problem was due to panel problems. Since the TV had a T-con board, from which two short LVDS cables were connected to the two scalar boards of the panel, the TV did not go to protection mode or standby unlike in Sony TVs. Let us have a look of the inside:
The first step in such cases was to check what work was done by the previous tech. Though I looked for any masking, I could not find any at that time. The next step was to remove one side LVDS cable and watch what happened to the screen and that’s what I did removing the LVDS of the left side (see second picture above).
But there was no result. I did not find any track cutting or masking inside the connectors. I was wondering what was wrong! Then I saw a masking very cleverly done on the right side LVDS cable, just under it, which missed my preliminary inspection:
So, that put a stop on my further work on this TV as nothing further could be done on such 4K Panels. I closed the TV and gave delivery to the customer, which he appreciated very much and forcibly paid my charges. But a good relationship was built which can fetch future cases.
Case (2) Philips LED TV:
This TV was brought to me by one of my colleagues in the hospital stating that he picked it up from another one’s house and wanted me to do something to revive the TV as it was showing problem of up & down shaking of display. I indicated to him that if someone had already done something inside the TV before, nothing further could be done and panel should be replaced. I opened the TV and checked the boards and looked for any techie works before. I was surprised to see my handwriting of voltage marking near the LED backlight connector and further inspection revealed two jumper wires from VGL/VGH connected to the odd/even inputs to the panel, near the T-con Board LVDS connector. That meant that the TV was revived to working condition once and I checked my records and found the following report:
I informed the customer that nothing further could be done on this and the TV required panel replacement and gave him the estimate. I am holding the TV in my home until he raises the budget for replacement of the panel, chances of which looked dim. I have told him to take it back in case he was not able to raise the funds within a reasonable time, which attracted my wife’s wrath as usual!
Now, what do these two cases show to us? We need to handle such cases very carefully with oral or written cautions (text or voice messages in phone.) Having burnt my fingers in one case, I was careful to tell the customers that I would not be responsible for any cracks in the Panel should there be one that I find after the backlight was on. Any rough handling in transportation could cause that. While we do stand a risk in taking up such cases, do we have any other choice? We have chosen this field because of our interest, are we not?
Now, the question of any satisfaction getting collected should be cleared by the readers, as both these cases do not qualify for it! When the presentation of the case is finished by the prosecutor and defense, the decision-making is passed on to the jury! Likewise, you are the jury and you decide!
This article was prepared for you by Parasuraman Subramanian from India. He is 76 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 article on No Display In Samsung QLED TV Model QA49Q60RAKXXL Gave A Surprise
(37)Dislikes
(0)
12 Comments
Leave a Reply
Albert van Bemmelen
April 4, 2026 at 5:36 pm
Your in detail explained risk assessment on such 4K Panels that no longer can be fixed is certainly worth this article to be read and documented. Now knowing that these tvs only can be fixed by replacing the badly old working panels. Although the previous done masking technique of these LVDS cables is still something I have to learn in practice.
Parasuraman S
April 4, 2026 at 9:03 pm
Many thanks for your expert comments, dear Albert!
Yogesh Panchal
April 4, 2026 at 6:29 pm
You are right ! Sir,
Prior consent with Clear terms is must in any form (in writing or on WhatsApp message)for any device;because new technology is very unpredictable because of complicated circuit design,can change fault symptom anytime while troubleshooting or repair.I Personally use Format acknowledgement as follows while repairing Laptops this is whatsapp message.
Laptop Repair Consent Acknowledgement:
I acknowledge and agree that during the Inspection, Diagnosis, Testing, Troubleshooting or Repair/Servicing of my device, unforeseen technical issues may arise due to the device’s existing condition or latent faults. Such issues may cause changes in the original fault symptoms, additional damage, or render the device completely non-functional.
I understand and accept that the service provider shall not be held liable for any new or worsened faults, damages, or malfunctions that occur as a result of necessary inspection, testing, or repair processes. I authorize the service provider to perform the required procedures with this understanding.
I further agree to collect my device in its present condition without dispute or claim for compensation arising from such technical issues.
I also understand that the service center, repair person,technician or service provider is not responsible for any data loss during the repair process.
Please reply “I AGREE” to confirm consent.
If anybody on this blog have some other format/suggestions please share. here......
Parasuraman S
April 4, 2026 at 9:08 pm
This is an excellent cover for all possible risks. You can include damages due to natural calamities and fire as an additional protection. Unfortunately, I cannot take such a consent from the customers, as I am not at all running a commercial shop. I am known as a 76-year-old Electronic Hobbyist in my circles. But I do communicate by audio or text message about possible risks or in person. But when there is backlog and piled up works causing delay, I lose track many times. Many thanks for your elaborate comments and suggestions, dear Yogesh Bai!
Mark J
April 5, 2026 at 3:46 am
Still a good article. Good risk assessment.
Parasuraman S
April 5, 2026 at 9:33 am
Many thanks, dear Mark! You are always very encouraging!
Jim
April 5, 2026 at 1:29 pm
I have seen this many times, I remember a Toshiba 50” LCD several years ago we sold a ton of this model and I think everyone of them had the bonding issue with age. Most all of the other Toshiba models held up very well.
Parasuraman S
April 5, 2026 at 2:11 pm
Thanks for the valuable feedback! Many thanks for your comments!
Imoudu.O
April 6, 2026 at 1:03 am
Thanks for sharing this type of acticle, I have fallen victim to such tv repair in which after replacing back light, I found panel was bad and I had to refund money to him,all because I didn't make agreements with him before accepting repair.I learned a lesson from this arcticle though.
Parasuraman S
April 6, 2026 at 5:19 pm
Yes, all bad experiences teach us lessons like any good experiences. We need both for our education and growth! Many thanks for your comments, which I am seeing after a long gap!
MP
April 6, 2026 at 6:06 pm
Among the countless archive articles in this Jestine Yong blog we've been warned severally and severely of keen observation of particularly any physical damage to LCD/LED TV screen. Thanks Parasuraman and Yogesh for the elaborations.
Parasuraman S
April 7, 2026 at 2:59 pm
Many thanks for your close following and involved comments!