2+ year old TV with many (720? 65" version has 720) mini LED dimming zones. TV boots, has sound, panel picture can be seen with flashlight. No backlight. No TV model sticker on rear panel (Maybe Samsung service removed it, read below). Found the model # through the PSU and zoned LED driver board numbers.
PSU has a click near LED output circuit at 1 second interval, sounded like the 4x barrier rectifier area. Protective pastic liner under PSU shows heat signature on the Schottky Barrier Rectifier in this circuit. Found a shorted diode (2 diode per rectifier, failed rectifier labled...
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Hi all,
i have some A1466 logicboards for gaining soldering and electronic experience. One board has a dead CPU and since i have several spares i want to change it. Unsoldering it was no problem but heat from the top showed that the CPU bent. I think too much heat was the problem.
So for unsoldering my spare parts and soldering back i would ask for some advises.
On most youtube videos you don't get any temperatures. Only helpfull video was one where the heat came from the bottom.
I have a small USB heating plate and a Atten ST-862D with several nozles. -
Let me say some symptoms first of my laptop along with some history I noticed...
10 days ago through lenovo vantage bios update was available, I updated and then system restarted but there was some failed error message. There was one more option to start laptop with last settings so it started and my laptop continued to work for 4-5 days.
Then I saw there is new windows update available to download so I started to download. It was just downloading not even it was getting installed so I thought it will take time so I decided to sleep after shutting down as it was late...Today, 01:12 AM -
I'm reaching out to see if anyone has done a Wifi UL000 swop from the same donnor board on an M1 A2338 Macbook Pro or if it is possible to do.
If it is possible what needs to be replaced as i cannot find the rom chips to go with it as mentioned on this page:
https://logi.wiki/index.php/T2_MacBo...IC_Replacement
Thanks -
Hi Everyone.
This nice ASUS GL502VMK 2.1 Board come to me after a liquid damage.
They replaced the keyboard but still only the power button works. NO damage can be seen around the IT controller.
Windows showing 2 keyboard devices after all software installation. (HID and ps2 compatible keyboard)
Anyone had this fault before? What do you suggest?...
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