Hello guys, what is the procedure to diagnose a back light on this model
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Re: 820-00239 i have the image but no back light
As always start by checking exact voltage on backlight output (LCD connected).OpenBoardView — https://github.com/OpenBoardView/OpenBoardView -
Re: 820-00239 i have the image but no back light
check voltage on F8400, l8410 d8410
all both side.Comment
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This happened last Saturday and today I finally had time this morning before I went to work to replace two non brand capacitors
I will let you be the judge weather or not these are bad or not according to the blue ESR meter that I am using
I am comparing them to a brand new one that I installed
The display came back on and the programming was not lost which I was surprised by I would have thought that when the display went blank that so did the memory as well
I going to let it run for several days before I remount back on the wall next to the... -
This specification for the HP Elite Slice G2 + Image Load & Asset Tag can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Elite Slice G2 + Image Load & Asset Tag boardview and Elite Slice G2 + Image Load & Asset Tag schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please...09-12-2024, 02:20 PM
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Hello, I would appreciate your expertise on this. I have about 5 years experience with copier repair, so I have done a lot of board and component replacement. This is the first LCD TV I tried to repair, and it really humbled me. The issue was that on power on the TV power light would go on and then fade out seconds later, and there was no image at all, screen stayed black.
I thought this meant there was a power board problem, not realizing that the power light fading out was by design, probably so the light would not distract the TV watcher. This is not my TV, so I wasn't familiar... -
Hello Community!
CASE DETAILS
Promblem Signs: Backlight on 1 sec off 7sec > repeat && Red standby light: 1blink, off 3 sec, 2 blinks, off 5 secs, 2 blinks, off 3 sec, restart cycle
13V present on powerboard output. Backlight continues flashing after removing cables to pannel one at a time and even with both disconnected. NOTE: backlight STOPs flashing and remains on when connector between powerboard and mainboard (note Tcon built in) is disconnected.
Tried inserting firmware on USB and left it in for a few hours, but no change
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Hi All,
I need some help with this one please. I am attempting a repair on the backlight. TV turns on and flashes the LG logo so stripped it down and found one faulty LED. Replaced it and tested on an LED tester and the strip was good. Put it back onto the PSU and it lasted about 20 seconds before going out again. Same LED had blown. Changed it for another type of SMD one (same voltage) and it seemed fine. Put the TV back together but it was quite dim. Noticed it was in power save mode so turned it off and the screen was bright. Left it on for half an hour only to come back to the...
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