Check this out. LEDs have turned blue. TV is only 2 years old. Owner doesn't know history since they bought it used so could have been store demo. Ordered the wrong strips since there is a panel version that uses 3 rows of strips. Only two rows on this one for a 49 inch TV.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
Announcement
Collapse
No announcement yet.
LG 49UJ6500 Blue Blacklights
Collapse
X
-
Re: LG 49UJ6500 Blue Blacklights
Probably overdriven, definitely worn out and turned blue. The yellow phosphor wears off and blue is left.Last edited by nomoresonys; 10-19-2019, 08:06 AM.
Comment
-
Re: LG 49UJ6500 Blue Blacklights
Lg or other vestel brand leds have a problem where some or all leds turn blue and it's just bad leds they use, I had the same problem in hitatchi and LG tv where some are blue but the picture was fine and I only noticed as I was stripping tv for parts but I can't sell the backlights as they are faulty , pictures attachedLast edited by imran333; 10-20-2019, 11:01 AM.
Comment
-
Re: LG 49UJ6500 Blue Blacklights
Originally posted by neilc6 View Postgot a second lg in with blue backlights 43uj6300. Popped off the lens this time and it appears there is a yellow filter (see this yellow in all previous led backlights) that has crumbled away exposing the naturally blue led underneath.
Comment
-
Re: LG 49UJ6500 Blue Blacklights
They are driven so hard so they fail and LG knows it.
LED failure mode:
Attached FilesNever stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
Comment
Comment