Re: Samsung TV Hotel, change main?

Hello!

I update the post with the solution, in case it can help someone in the future.

On the Main board, next to the flex connectors that go to the panel, there is an 8-pin Eeprom memory, IC 1603_UT, with registration number 25Q80DVSIG. This memory is the one that saves the settings related to the panel. It can be overwritten or replaced.
Since I don't have a reader for that SDIP8 format, I have done the test by extracting the one that was in the hotel main and soldering it to the domestic main, "et voilá"...

Hello!

I just got a Samsung TV model HG75EJ690UB 75" and 4K. It is a hotel TV, with a slightly different version of the Tizen operating system than the TVs at home.
Being a hotel, it is covered in many functions. With the service menu I can unlock some, but not others. For example, I can't install apps like Netflix etc...
The fact is that it seems that I can replace the main by a, say, "normal". I think the one that corresponds is NU7105, ref BN94-02635. At work, which is a convention center and a hotel, I have many TVs from 55" to 85" that...

Re: Samsung UN46C6300SFXZA lines on screen

Well after a long time with this parked tv, I have started again and I got another mainboard with the known problem of a bad chip, the graphics processor, soon working the screen was filling pixels in other colors and final of yellow vertical lines. But these symptoms disappeared when a little pressure on the chip. All this in a samsung UE32C6530.

First I applied heat with a heat gun, controlling temperature, and then I have mounted the tv to make sure it worked, as it were. Only some artifacts introduced after two hours...

Re: Samsung UN46C6300SFXZA lines on screen

Hi again, I put some pics of the problem

Thanks!!!...

Re: New Members - please post your introductions here

Hi everyone!

I´m nebbie here, but a old technician....from the times of discrete transistor and some IC´s. I´m from Spain, but you know for my bad english.....sorry. I promise to improve on this Thanks!!!!

Re: Samsung UN46C6300SFXZA lines on screen

Hello!
I have the same problem (or so I think) with a Samsung UE55C6000. Originally the TV would not turn on, I changed the main board with a one used from Ebay and boot, but appeared a yellow stripes across the width of the screen, each 4 Horizontal pixel curiously, had a column in yellow.
I changed the T-CON and stripes was turned black. If I put the T-CON original, stripes are again yellow.
I also change the flex between the main and T-con, without difference.
I read about doing reflow with heat gun or...