Neighbor gave me a 2015 Samsung 48" LCD panel with LED backlights, that has seen little use. First time to investigate one. It's stuck in a repeated screen flash loop where the PS attempts to start, detects a fault, shuts down, tries again, detects the same fault, shuts down...ad infinitum.
The MB & T-CON boards are OK. There may be a fault in the LED drivers and/or a few LED's themselves. I'll have to do a current draw check to see what's going on. I suspect there's a short on the LED strips somewhere.
If you have a set with a LED backlight, you can extend it's life by turning down the backlight level (if possible) or setting it where it's not at 100% BRIGHT all the time. LEDs need to be driven within limits to ensure long life. I suspect many are being over-driven either through design or by their users. Once the LED cktry is Tango Uniform (black screen) many junk the set due to the high cost of repair. Some (many?) are only a few years old like this one. That must BITE! Neighbor paid $400 + $33 in tax. Went black a few months ago. So they bought another one. May even be worth paying for an extended warranty on these, depending on the length of the OEM coverage.
Lastly, I'm interesting in hearing your reliability experience with your LED-backlight sets. How long they lasted. How long before they would no longer start, one side became dark, they flashed like mine, buzzed/arced. CCF backlight is a much different technology so let's leave that out. Same with plasma and OLED.
I'll post updates here as I dig further into this one.
The MB & T-CON boards are OK. There may be a fault in the LED drivers and/or a few LED's themselves. I'll have to do a current draw check to see what's going on. I suspect there's a short on the LED strips somewhere.
If you have a set with a LED backlight, you can extend it's life by turning down the backlight level (if possible) or setting it where it's not at 100% BRIGHT all the time. LEDs need to be driven within limits to ensure long life. I suspect many are being over-driven either through design or by their users. Once the LED cktry is Tango Uniform (black screen) many junk the set due to the high cost of repair. Some (many?) are only a few years old like this one. That must BITE! Neighbor paid $400 + $33 in tax. Went black a few months ago. So they bought another one. May even be worth paying for an extended warranty on these, depending on the length of the OEM coverage.
Lastly, I'm interesting in hearing your reliability experience with your LED-backlight sets. How long they lasted. How long before they would no longer start, one side became dark, they flashed like mine, buzzed/arced. CCF backlight is a much different technology so let's leave that out. Same with plasma and OLED.
I'll post updates here as I dig further into this one.