It is a common problem for a defective LED back lights ASSY.
I have the same issue with my Hitachi LE55A6R9A. No picture, have sound and passes flashlight test. I see no LED backlights whatsoever. What are the chances all the LED strips failed at the same time or would the issue more likely be on one of the boards? I would be more confident in replacing one of the boards but not diving into the LED replacement.
You may change the LED strip board, or the individual LED diodes.
So you think the issue would indeed more likely be the LED backlights and not one the boards (power, main or Tcon)?
Yes Richie. We see a lot of this problem of this Hitachi.
I also noticed that the l.e.d. backlight setting on this t.v. sometimes defaults to 100%. That might be a reason why it's burning up l.e.d.s so quickly. I have mine set to 28% and still looks bright.
Congratulations for getting them changed, a lot of people have tried and messed up the panel in the process, yes drop the backlight setting down to as low as you can set it and still get a decent picture that will prevent this from happening again
Yes, turn the back lights brightness level down to prolong the life of the LED.
×
390 views
Usually answered in minutes!
Actually, I checked all the voltages and there was one reading that seemed to be high. I think what might have have happened was a couple of diode's blew and that caused the others to get overloaded. So I replaced the strips and it worked. It was a pain in the neck but it was worth it.
×