Latest curb find, Samsung UN75F6300AF, brightest at the top and getting dimmer as you go down. It has a line across the top but it's not straight across. What should be my first check, Led string voltage?
Samsung UN75F6300AF
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Re: Samsung UN75F6300AF
Yes,
Test led voltages, but make sure it's like that on every source first. Also check and see if it's like that with the tv menu open. If so then most likely the led's. But until all voltages are checked can't say 100% -
Re: Samsung UN75F6300AF
Ok tested the 4 caps on board for backlight and get around 350v on 2 then 188 and 216 on the other 2. So am I better off replacing all strips or just some leds. The only thing that worries me is the line across the top that veers down at edge. What are y'all's thoughts? Thanks MichaelComment
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Re: Samsung UN75F6300AF
Well after putting it back together, I have 3 vertical lines in the display. Could it be t-con ribbon cable not seated properly? Also one of the new strips of backlights does not work, I tested them with led tester before reassembly and one took several times to come up it would just lightly flicker. Dang I knew I should of had them replace it.....Comment
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Re: Samsung UN75F6300AF
In my experience those lines are from the ribbons to the panel being stressed when removing and installing. Sometimes with these older tvs they are easily tweaked. Where did you source the LEDS? If it's shopjimmy they will certainly give that kind of support.Comment
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