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If no voltage differences are found tl4941 datasheet the 4 points I specified, or if a known good CCFL does not help; replacing the caps would be the next order of business unless they test good on an ESR tl4941 datasheet.
I should learn LOL I do it a lot.
TL4941 даташит ( Даташиты, Даташиты )
That is the one that sounds like would be helpful with this. I checked r datasbeet and out of circuit and it tested good, however after replacing it with a new, similar one, the screen has been running perfect since.
Right after my post about reading ESR. Also see Jack Crow’s pictures in thread: The caps say Tl4941 datasheet on them. tl4941 datasheet
Thanks for all the help. I also had one do that with a bad transformer.
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That’s what I get for assuming I dqtasheet the fix of removing the Tl4941 datasheet, and then they stayed on. I also had the same Problems with this monitor, For tl4941 datasheet the backlights turned off almost immediately after power-up. Actually all points settled at. Yep, I am going to look for an ESR meter. The resistance is for both.
You can’t measure resistance of a cap with a DMM. I am stumped on where tl4941 datasheet look to repair this one.
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It must have been going low ohms under load. I switched the lights and got the same results. So Tl4941 datasheet guess the next step is to replace some caps? I’m just curious if those 2 are responsible for this problem.
Thanks for tl4941 datasheet the tl4941 datasheet information. Don’t know if it will fix it, but I will also try. Originally Posted by BlkSmth Post that should be the datasheet on the ic: Assumed blue electrolytic and made idiotic comment.
tl4941 datasheet You must have an ESR meter I datashee I will try to find a meter to test the caps. I just read his post and datsheet resistance didn’t make sense: The two to replace are the ones closest to each tl4941 datasheet transformer. Well, I tried to measure the voltage at the points suggested. My guess is it isn’t getting to the voltage it should before the lights go out. Alexanna, I had tl4941 datasheet do that when it had a bad ccfl solder joint I will try switching the lights and see what happens.
This is a Dell 22″ widescreen and the backlight goes out about 1 or 2 seconds after turning it on. If I cooled it the screen would stay tl4941 datasheet.
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Okay, I measured the resistance across the legs of the blue caps near the transformers. Originally Posted by jimboee Post This has been the most informative thread on this topic. Originally Posted by indyracer Okay, I measured the resistance across the legs of the tl4941 datasheet caps near the transformers. Originally Posted by indyracer Post The caps say Tl4941 datasheet on them.
My first tl4941 datasheet post: To emphasize one point el3ctroded made, replacing the electrolytic capacitors may solve the problem. I know about Appling heat to various spots on the boards to accelerate the problem, even just a little understanding what the TL in a CCFL circuit is doing would help. I have another monitor that I am trying tl4941 datasheet fix.
Originally Posted by alexanna Post with a K resistor substituted for the 1Meg resistor the under voltage protection is disabled. Point B climbed to.