Hi guys I have a problem with this TV, once it is turned on it restarts continuously (only the backlight is present, no image), by disconnecting the flat of the display it remains on regularly, can I solve it with scotch tape? What slopes of the flat can I cover?
Samsung UE50TU8070UXZT bootloop display problem
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Re: Samsung UE50TU8070UXZT bootloop display problem
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Re: Samsung UE50TU8070UXZT bootloop display problem
Posted a slide summary on Samsung 4K panel connections. Can help you understand what all the flex connection pins are
https://www.badcaps.net/forum/showthread.php?t=118541Comment
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Re: Samsung UE50TU8070UXZT bootloop display problem
Posted a slide summary on Samsung 4K panel connections. Can help you understand what all the flex connection pins are
https://www.badcaps.net/forum/showthread.php?t=118541Last edited by fanaticgames; 04-28-2023, 05:02 AM.Comment
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Re: Samsung UE50TU8070UXZT bootloop display problem
https://www.electronica-pt.com/esque...-repair-65862/
This video explains CKV* and CKVB* (B=Bar or inverted signal) are generated from the same source. I guess above author is expecting a fault before CKV/CKVB pair is generated. However, for these newer Samsung Panels, CVK/CKVB comes directly out of the single SOC on main so maybe no longer fault in pairs... I don't really know.
https://youtu.be/izd7dhtmZjc?t=879Last edited by howardc64; 04-28-2023, 05:00 PM.Comment
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by KYBOSHCame across a 75" QLED TV with restart-backlight no boot and it was headed to the dumpster. Asked the owner to let me have a crack at it. They said the TV went out during or soon after a thunderstorm. I noted this but didnt out too much stock into it as it could have been anything.
VERY big TV and i was worried about the display cracking during the moved as well as the repair but it was alright as i try very hard to handle with care.
In the video (zip file) you can see' as the TV tries to start up, tbere are a lot of gaps in the backlight so I immediately suspect... -
Hi All,
Need help.
I have a samsung un60j620dafxza led tv. When I plug it in it has no display, no sounds, and no standby lights.
So I opened the tv and disconnected the power to the mainboard and the backlight powered up. This according to many people says that this is a mainboard
problem. I checked the voltage coming from the stb and I read 1.3 volts on pins 1,3,5 and 7 which are low volts instead of 13 volts which i think the lcd panel
might be drawing too much power from the power supply that it prevents the right voltage going to the mainboard.... -
by RoccoladeHey everyone.
I have a Samsung QE50Q67TAUXXC (same as Q60T i think) which is experiencing constant bootloop. The picture comes on at first but then it begins to reboot again and again. I tried taping off the pins one by one on the ribbon-cable connecting the two panels at the bottom - and found that the bootloop stops when 1st pin from the left is taped off and the same if the 46th is taped off. (See picture). But unfortunately, I get no image on the screen in those cases.
The bootloop also stops when the whole right side is disconnected. Which makes me believe the problem... -
by Neptune06Hello,
I have a display problem (bad size and color) on a Samsung U28E590D and i'm wondering if someone have access to the service manual for this monitor. I used a faulty Lenovo thunderbolt hub connected to it and now i suspect a problem on the HDMI part of this monitor. The main PCB board part number is: BN94-10748G.
Thanks for your help.-
Channel: Troubleshooting Computer Displays
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