Hi all,
I've got an Samsung UE50NU7445U 4k led screen which was stuck in some kind of "boot-loop".
I replaced the mainboard as a first try which did not help.
PSU seems fully OK, both backlight voltages and the mainboard supply is OK.
Now it boils down to the panel itself.
So I started up the set without the two flatcables disconnected between MB and panel. Then no boot-loop anymore.
So I guess the diagnostics detect an abnormality on the panel.
I removed the cover which hide all the panelconnection to the two "buffer" boards (could call it)
There are not very much on these board except for some decoupling caps and what it seems a flash memory.
Any advice?
I've got an Samsung UE50NU7445U 4k led screen which was stuck in some kind of "boot-loop".
I replaced the mainboard as a first try which did not help.
PSU seems fully OK, both backlight voltages and the mainboard supply is OK.
Now it boils down to the panel itself.
So I started up the set without the two flatcables disconnected between MB and panel. Then no boot-loop anymore.
So I guess the diagnostics detect an abnormality on the panel.
I removed the cover which hide all the panelconnection to the two "buffer" boards (could call it)
There are not very much on these board except for some decoupling caps and what it seems a flash memory.
Any advice?
Comment