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Old 03-19-2017, 09:06 AM   #31
Tron guy
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Join Date: Mar 2017
City & State: Sacramento, Ca
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Posts: 9
Default Re: Hitachi LE55A6R9A - No backlight

Originally Posted by dick_barton View Post
If you believe that you have 270V at the led connector of which they appear to be wired in series then I believe that you may well have an open circuit led.
I definitely had 270vdc at CN 202.

So when you say "open circuit led"

are you saying a single LED or strip is bad?

Or is my voltage so high that a diode or transistor went out on the power board?

Again when watching a few videos I determined I had +12vdc at all of the points listed between the boards, +5vdc as well where it was supposed to be.
Shining a flashlight on the screen when powered on, got me some image in menu mode.
I am an absolute newbie at led/lcd tv repair (first attempt here).

thank you for replying
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