I have a Samsung LCD TV (UE50NU7455). When I turn on the TV it works normally. However after a while (aprox. 15 minutes), vertical lines appear on the screen. First a few on the right side of the screen, but in a few minutes it progresses to the rest of the screen (see photo).
[image|2834519]
I already performed the following actions:
* reset to factory settings
* update firmware
* removed all connecting devices
* removed back panel and cleaned all connections and connectors (see photo)
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[image|2834521]
* I even bought and installed a new (secondhand) motherboard. However, same problem. After 25 minutes vertical lines came back.
-
Question to the community. Any other suggestions on how to repair this?
Thanks in advance!
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=== Update (01/12/2023) ===
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@oldturkey03 Thanks for your reply.
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I removed the bezel from the tv and teared it down a bit further.
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Attached a few more pictures from the LCD driver boards.
Hi,
I have a Samsung LCD TV (UE50NU7455). When I turn on the TV it works normally. However after a while (aprox. 15 minutes), vertical lines appear on the screen. First a few on the right side of the screen, but in a few minutes it progresses to the rest of the screen (see photo).
[image|2834519]
I already performed the following actions:
* reset to factory settings
* update firmware
* removed all connecting devices
* removed back panel and cleaned all connections and connectors (see photo)
[image|2834521]
* I even bought and installed a new (secondhand) motherboard. However, same problem. After 25 minutes vertical lines came back.
Question to the community. Any other suggestions on how to repair this?
Thanks in advance!
Hi,
I have a Samsung LCD TV (UE50NU7455). When I turn on the TV it works normally. However after a while (aprox. 15 minutes), vertical lines appear on the screen. First a few on the right side of the screen, but in a few minutes it progresses to the rest of the screen (see photo).
[image|2834519]
I already performed the following actions:
* reset to factory settings
* update firmware
* removed all connecting devices
* removed back panel and cleaned all connections and connectors (see photo)
[image|2834521]
* I even bought and installed a new (secondhand) motherboard. However, same problem. After 25 minutes vertical lines came back.
Question to the community. Any other suggestions on how to repair this?
Thanks in advance!
Hi,
I have a Samsung LCD TV (UE50NU7455). When I turn on the TV it works normally. However after a while (aprox. 15 minutes), vertical lines appear on the screen. First a few on the right side of the screen, but in a few minutes it progresses to the rest of the screen (see photo).
[image|2834519]
I already performed the following actions:
* reset to factory settings
* update firmware
* removed all connecting devices
* removed back panel and cleaned all connections and connectors (see photo)
[image|2834521]
* I even bought and installed a new (secondhand) motherboard. However, same problem. After 25 minutes vertical lines came back.
Question to the community. Any other suggestions on how to repair this?
Thanks in advance!