Comments on: LG TV Turns Off After 20 Minutes

By: Mark

Mark — Mon, 14 Apr 2025 11:38:47 +0000

In reply to Imoudu.

All the instructions are shown in the interconnect diagram shown in the article below

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By: Mark

Mark — Mon, 14 Apr 2025 11:37:41 +0000

In reply to H.khalilian.

You are welcome

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By: Imoudu

Imoudu — Sun, 13 Apr 2025 20:22:26 +0000

Good repair narrative, Mark,it worths keeping for reference, however how did you arrive at using 200ohms in calculations for testing those led stripes.

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By: H.khalilian

H.khalilian — Sun, 13 Apr 2025 14:13:58 +0000

thanks a lot

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By: Mark

Mark — Sun, 13 Apr 2025 14:03:46 +0000

In reply to nick greek.

Thanks Nick

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By: Mark

Mark — Sun, 13 Apr 2025 14:03:15 +0000

In reply to Mark J.

Hey Mark,
Glad I was able to find them and share.

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By: Mark

Mark — Sun, 13 Apr 2025 14:02:32 +0000

In reply to muykit.

Hey Muykit,
As I showed in the video, after I had completed the repair, I went back with the backlight tester and checked the faulty LED. It lit up and so it would still take the 20 minutes before it failed.
I also included the interconnect diagram in the article which explained the use of a 220 Ohm resistor to bring on the backlight and individual light blocks.
I hope that explains my diagnostic methods.

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By: Mark

Mark — Sun, 13 Apr 2025 13:45:56 +0000

In reply to Waleed Rishmawi.

Hey Waleed ,
I have learned a lot from this repair. Now that I have this knowledge, I would maybe carry out testing in a different way or feel more confident just going ahead with the backlight replacement.

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By: Mark

Mark — Sun, 13 Apr 2025 12:21:48 +0000

In reply to Mark.

Totally right Mark.

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By: Mark

Mark — Sun, 13 Apr 2025 12:20:14 +0000

In reply to Yogesh Panchal.

Hey Yogesh,
You are right, so much time was spent waiting for the fault to show it's ugly head.

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