My Sharp LC-70UD1U Screen is black and flashing like this 👇 I attached here, you know what that mean?
https://youtu.be/JOXMDMceFhU
https://youtu.be/JOXMDMceFhU
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Re: My Sharp LC-70UD1U Screen is black and flashing
Possible but unlikely you can find the error code.I assume no responsibility for any stupid suggestions I might post. -
Re: My Sharp LC-70UD1U Screen is black and flashing
https://masterelectronicsrepair.blog...-training.htmlComment
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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/2mXWEQ9Comment
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Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Hello everyone !
My name is Chris, I am a 30 years old embedded software developer working in the automotive industry. I am really passionate about learning new skills and repairing/crafting stuff. I came around this forum last week with the goal of repairing my faulty gaming laptop, indeed, I was video editing on it when suddenly a black screen popped and never disappeared
I bought some stuff to try to repair it and learn as many things as possible about computer repairs but nothing worked so far. When the black screen appeared, my legion 5 pro was connected to my external monitor...
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I have a Sharp Aquos LC-80LE757U that randomly made a loud popping noise when when watching TV one day. We found that the fuse blew and the thermistor. We ended up replacing the entire power supply board and have also replaced the TCON board. Now as soon as I plug the TV in it lights up and has the Sharp logo flashing on and off of the screen. If I unplug the ribbon cable from the TCON board to the main board I get the 2 long 5 short error code. Any ideas on where to go from here? We've tried resetting it but nothing has worked. If we plug it in and let it cycle through the flashing of the Sharp... -
Good day all,
As title says, black screen. Replaced hot side and largest cold side capacitors on power board as were reading erratic and TV was dead (no power light).
Following replacement, power led now illuminates, changes from red to blue on pressing TV joystick, still black screen. Connection board appears powered (optical sound led on). Slight crackling from speakers.
Checking led driver voltage reveals voltage falls off after power on from pressing joystick (drops to zero).
Attached picture of power board.
Next check steps... -
Hi everyone,
I have this strange behaviour with Acer Aspire E5-574-52RH, i5 6200U, intel graphics, DA0ZRWMB6G0 Rev G, model ZRW.
Laptop came in for a SSD upgrade, took everything apart to install the SSD.
Everything started after modifying BIOS settings to boot UEFI instead of Legacy.
Laptop works fine, i installed windows 10 and drivers/updates, everything works ok(when it works)
The black screen problem is random, maybe 5 out 10 times, laptop remains with the black screen, no image
Symptoms are:
- random black screen after displaying Acer logo...
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