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Old 01-18-2022, 12:20 PM   #1
Megan0
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Default My Sharp LC-70UD1U Screen is black and flashing

My Sharp LC-70UD1U Screen is black and flashing like this 👇 I attached here, you know what that mean?


https://youtu.be/JOXMDMceFhU
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Old 01-18-2022, 01:17 PM   #2
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

Possible but unlikely you can find the error code.
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Old 01-18-2022, 02:24 PM   #3
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

Quote:
Originally Posted by Megan0 View Post
My Sharp LC-70UD1U Screen is black and flashing like this �� I attached here, you know what that mean?


https://youtu.be/JOXMDMceFhU
Panel power supply error. It's in the training manual.
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Old 01-18-2022, 02:49 PM   #4
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

https://masterelectronicsrepair.blog...-training.html
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Old 01-18-2022, 03:03 PM   #5
Megan0
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

Well, I opened the back cover and as you can see in the picture, I unplugged 2 L (left) ribbon, TV turned ON, but half of screen (Right) is normal, and the other side (Left) is white. I continued to test...
Result:
I swapped the ribbons L<-->R = Blinking 2x power light, 5x timer light
Unplugged 2 R Plug 2 L = Blinking 2x power light, 5x timer light
Unplugged 2 L Plug 2 R = Blinking 2x power light, 5x timer light

Only in the first test, where I did not change the ribbons, when I unplugged 2 ribbons on the left, half of the image is normal, and the other side (unplugged side) is white.

Does anyone have any solution?


Thanks


https://flic.kr/p/2mXXbTH

https://flic.kr/p/2mXWEQ9
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Old 01-18-2022, 03:12 PM   #6
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Default

I
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Old 01-18-2022, 03:13 PM   #7
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

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Originally Posted by diif View Post
Panel power supply error. It's in the training manual.
I did a few tests that I wrote down
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Old 01-18-2022, 03:13 PM   #8
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Default Re: My Sharp LC-70UD1U Screen is black and flashing

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Originally Posted by lotas View Post
I did a few tests that I wrote down
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