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Old 10-18-2020, 09:50 AM   #1
Rmasters3
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Default LG 47LS4500 picture issue

After swapping the power supply, this is how the picture looks. Vertical band lighter top to bottom of display

PS had a number of issues bulged electrolytics, 15A fuse blown, and one ceramic cap bulged. Might have been other problems too, but swapping the PS was simplest fix, and I have no information if the set had this vertical bar before PS died.

Suggestions?

Thanks
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File Type: jpg LG 47LS4500-UD display.jpg (3.00 MB, 25 views)
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Old 10-18-2020, 09:56 AM   #2
nomoresonys
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Default Re: LG 47LS4500 picture issue

Grab the bezel with both hands and give it a squeeze, right there where the line is, try it on top and bottom, just squeeze the bezel, don't touch the screen, see if the line changes any.
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Old 10-18-2020, 10:25 AM   #3
Rmasters3
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Default Re: LG 47LS4500 picture issue

Do you mean squeeze bezel at top and bottom of lighter area?
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Old 10-18-2020, 10:32 AM   #4
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Default Re: LG 47LS4500 picture issue

Tried squeezing bezel at top and bottom. No change--back panel is still removed from replacing PS.

I do get three blinks of the On/Off red light when the set turn on.
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Old 10-18-2020, 02:45 PM   #5
nomoresonys
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Default Re: LG 47LS4500 picture issue

Feed it a signal see how it displays, maybe try a dvd player.
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Old 10-18-2020, 05:40 PM   #6
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Default Re: LG 47LS4500 picture issue

That vertical band band corresponds to one of the TAB bond/flex cables (second one in from the edge). You can try putting some pressure on it but likely not repairable.
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Old 10-18-2020, 06:56 PM   #7
nomoresonys
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Default Re: LG 47LS4500 picture issue

If putting pressure works, it may be a candidate for the shimming technique.
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Old 10-21-2020, 07:25 AM   #8
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Default Re: LG 47LS4500 picture issue

Any particular method for this pressure treatment?
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Old 10-21-2020, 09:14 AM   #9
nomoresonys
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Default Re: LG 47LS4500 picture issue

One there, might be able to find some with more detail but the gist is there: https://www.youtube.com/watch?v=8l5ORKjQF5U
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Old 10-23-2020, 08:31 AM   #10
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Default Re: LG 47LS4500 picture issue

Tried everything suggested and no-go. It's headed to the curb. Thanks regardless
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