I forgot to ask if you detect flashing light also from the screen back holes, plus witch is the blink frequency and if constant..
sharp lc-65ub30u plays but screen is flashing on and off
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I ordered and installed a power supply but that wasn't the problem. I dissassembled the tv to check the backlights. While checking the backlight strips with a LED backlight tester I found one backlight that wouldn't come on at first. After turning the tv on, all the backlights, including the one that wouldn't come on with the tester, came on and started flashing. These are 6 volt backlights. I checked the voltage at that one backlight and the voltage would climb to 12 volts +. So, I changed that one backlight with a new one and that fixed the problem. Thank you guys for all your help.
OP you had spared time when i wrote to you from first page where are yours issue... any way... take this in ears please as advice and happy to hear you fixed by LEDsComment
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Hello,
YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo
I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.
On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.
I also changed the screen because the PC fell and the screen was broken.
I changed the battery with a new and original battery.
I also had corrosion/oxidation on the... -
by sefosterI 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...
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by Ryan.manHello everybody! Posting this in hopes somebody has some expertise that leads to a clear path of troubleshooting that saves me a lot of time!
My macbook has the flex cable problem, the one that prevents the screen turning on. Ive been dealing with this for the last 3 years. Last year it went dead and I managed to fix it following youtube tutorials. But my fix wasnt the best, the problem returned a month later. This week, it went dead again. I again tried to fix it.
This time the original cable broke too close to the screen, it can't be fixed without tearing the screen... -
by EazyBoneAnother TV topic!!
I got this sharp TV that when I first plugged it in it showed the sharp logo and then went to the input screen. This was about 30 seconds and then it showed white screen. Now I can't see anything but white screen. This has a separate TCON and Main.
The TCON is getting 12V and several parts are as well but the VGH line is only .5Volts which I thought is totally incorrect.
Am I on the correct assumption that the TCON is bad somehow if I'm only getting that voltage or is there something else I should check?... -
by Megan0My Sharp LC-70UD1U Screen is black and flashing like this 👇 I attached here, you know what that mean?
https://youtu.be/JOXMDMceFhU - Loading...
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