LG 55 LA860V TV: Vertical Stripe 2-3mm Wide, Thin Horizontal Stripe & Subtitle Shadow Issue

Today, a vertical stripe 2-3mm wide appeared on the screen, and a thin horizontal stripe at the top of the screen visible in the picture. Subtitles, etc. every now and then become as if with a shadow and in a moment normal again, but the stripes remain all the time. What could be the cause, is it serious? Thank you in advance for your help.

Probably the tape connecting the drivers to the matrix has been peeled off. It's quite common with these symptoms. As for the subtitles, it may be the result of unstable work of drivers hanging in the air. Unfortunately, my friend won't do anything about it. Need to be serviced. If the tape can be repaired, the cost is not great, but if not, the matrix must be replaced. Unfortunately, the cost is another story and most often unprofitable.

Thanks a lot for your help, I don't know whether to give it to the LG service or to some local specialist. Can you play it or better not? not to ruin it more? The TV is 2 years and 11 months old and cost a fortune and such? It's a bit funny to me, or tricking people that after such a short time of use it breaks down and it's probably the most expensive element. Well, the market has to drive...

A lot is a relative term. This TV was (and still is) quite expensive mainly due to a lot of goodies and other mediocre features, not because of durability.

Where to give back? It's your choice - you will give it to the LG service, they will probably replace the matrix, which will not be cheap. You will take it to a local specialist who will fix it, but the fault will probably come back after some time. This type of fault is quite difficult to effectively repair without the appropriate tools that local services do not have. Authorized services usually do not either, which is why they replace the matrix because it is the only way to reliably repair this fault.

Currently, the equipment is manufactured with durability up to the warranty and I will not judge whether it is suitable for a company service or not. In the company what you need to realize the repair costs will be high. On the other hand, in some local service it may pay off as long as the guest knows or repairs such defects.

Added after 4 [minutes]:

And do you know, colleagues, how much such a service may cost on the LG service, how much the matrix may cost? as you write my friend, this is a relative term .. but the trail hits me because it was a bit too short? can it be played with it will it deepen may damage the TV more as I use it??

For those interested, after contacting the LG service by phone, they offered me a replacement of the matrix for only PLN 4,000, laughter in the room. Why do they break after warranty? then he replied that the sale must also be and that everything breaks down. It's a pity that this site is so far from me, I wonder if he would say it to my face. In my area, no one wants to move it from small services, so I will be left with watching with a belt until it falls completely and then buy a new TV for the price of the matrix.

The law of intentional obsolescence applies here. The market is so flooded with all sorts of goods that if the equipment did not break down, half of humanity working in the electronics industry would traditionally go out on the streets.

jacol1972 wrote:

can it be played with it will it deepen may damage the TV more as I use it??

It will not damage more, but such defects like to deepen.
As it has already been written here - the fault results from the physical disconnection of the matrix control lines from the controller. A tape with many (several hundred) wires is attached to the glass of the matrix, in simple terms, each wire of this tape is one vertical line on the matrix. Hence, if any wire loses contact, the matrix line corresponding to it stops working and the effect is as in the photo attached in the first post.
This is of course a big simplification, because in addition to vertical lines, you also need to control horizontal lines - that's why there are miniature integrated circuits on the sides of the matrix, which control horizontal lines.

Due to the high miniaturization and delicacy of both the tape and the sensor glass, removing this type of defect is quite difficult. At the same time, for the same reasons, these defects arise and, unfortunately, it is usually a manufacturing defect. There is no rule, one copy will work without failure for many years, and another will fail during the warranty period or just after. You just had bad luck dude.
Service technicians use various "workshop" patents with better or worse results, but most often the fault returns after some time. For this reason, conscious service technicians are reluctant to repair this type of thing, because they have to provide a guarantee for the service performed, and they are not able to guarantee the correct operation of the repaired connection.
The authorized service is also unable to guarantee it, so they do not sculpt and replace the matrix because it is the only way to guarantee correct operation for a long time. In addition, the replaced matrix is covered by the warranty and there is no problem for the duration of the warranty - if it breaks down, it is not the customer or the service that bears the costs, but the manufacturer of the defective matrix.