12v pin is shorted to ground in the LCD board (1st picture) if the LVDS cable is disconnected, 12v are OK in the Main Board (2nd Picture)
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So, how can I help? You have a problem in the T-CON (short circuit at the 12v input), it could be ceramic capacitors or the DC/DC converter, disconnect the lvds cable and supply power from a lab power supply 8-10v (observing the polarity) and increase the current, see what will heat up (get hot), that will be your problem...Attached Files -
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Thanks for the help I will try and let you know.Comment
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The Capacitor on the top of the board was shorted. Thanks for your help IotasComment
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hI there!
Im trying to help a friend repairing a large, real-sized short-circuit robot.
This is remotely controlled and has a 2 way voice send/receive. Also while the hidden operator is talking, the red bulb inside the "mouth" should flash according to the sound
Some other technician used to service it and he was fired leaving all the repairs unfinished and no documentation at all.
What I found is a sound receiver, a speaker, and a wire directly to the mought bulb (a normal motorbike 5W 12V bulb).
So I bought a simple 2X30W amplifier to feed the loudspeaker... -
Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I... -
I recently was given a UN70NU6900FXZA that would only boot loop once plugged in (auto powers on when plugged in). I found that disconnecting the lower (right side) LVDS ribbon, then plugging the TV in, followed by reconnecting the lower LVDS ribbon will allow the TV to work 100% normal as far as I can tell (no lines, no discoloration, no dimming or anything like that).
I tried the tape method on the lower LVDS ribbon and found that if I cover pins 10 and 11 (counting from the bottom up) allows the TV to boot normal but 25% screen all the way to the right side is discolored. While... -
Hello Badcaps Community,
I purchased a preowned AOC monitor that is not working and out of warranty. It was sold as not working. I am looking for guidance on self-repair. In particular, I am after the firmware for the monitor. At the end, I have included monitor model information and links to pics and vids of the issue.
The problem is that it will not display a picture on any of its inputs. And the on-screen menu does not appear. The power button works properly. It powers on with the remote as well. But the on-screen menu does not appear, even when not connected to any...Today, 04:41 PM -
Hi Everyone
Lately I am experiencing the deja-vu incident on one of the led monitor like this.
https://www.badcaps.net/forum/troubl...lashing-on-off
The monitor is HP 27es LED Monitor
https://h30434.www3.hp.com/t5/Deskto...e/td-p/6804692
The monitor will randomly blackout and display no signal and will recover again.
Sometimes need to power and off again to restore the display but...
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