I purchased a LG EAY64269401 for a 55LW340C-UA-BUSWLJR due to the R LEDs being dead. While t-shooting, I swapped the leads between L and R and the L was dead. This told me the R LED driver was bad, hence ordering the PS. Once I installed the replacement PS, the set worked great, but after about 10 minutes the R LEDs were dead again. I pulled the screen to see the first 3 LEDs on the strip are internally burnt. I have located replacement LEDs and ordered. Do you have any recommendations on repairing the PS PCB I just installed? I do not have a schematic for this set. Thank you - Mark
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Hi guys,
I have a dead coffee machine, and it seems that the culprit (no 1, at least) is a dead trafo - primary coil seems to be blown open (type shown on the picture below).
Now, I'm unable to find direct replacement anywhere on ebay or aliexpress, and all similar that I' was able to find are rated too low (<1A).
If someone knows a shop to buy replacement (EU/CH), that would of course be my 1st option.
My other ideas:
- to buy 220/20Vac trafo with 30VA, and to "manually" create secondary 12V output just via resistor
- to buy... -
I got a Chromebook with dead eMMC, so the logical thing to do would be to replace it.
Its a SDIN8DE4-16G, anything i should know before replacing it with SDIN8DE4-32G?
Is it possible to flash a full firmware using a CH341 to be able to boot into windows through USB? since that would be way cheaper, better and quicker.
Or are there any other ways to run mrchromebox script without booting into ChromeOS?02-17-2024, 02:06 PM -
I have this ITX motherboard from Gigabyte paired with a 3900X and 32GB of RAM,
The board is only a few months old. I had taken it out of my case (in working condition) a few weeks ago, since I needed the case for something else. The board was left uncovered inside a workshop-type area (yes, bad) for that time and accumulated a little dust. Before trying to use it again I of course cleaned it off with compressed air and make sure that no dust or debris was left on the board.
Pressing the power button makes the PSU click-on and the CPU fan spin, but nothing more. No...11-28-2022, 03:35 AM -
Hi all,
As the title suggests, how can I be sure that my EC chip is really dead?
I've recently gotten into this hobby of laptop repairs, and have successfully brought back to life a couple with some easy fixes, mostly shorted caps.
Now I'm working on HP Probook 455 G8, that had some "devil" run around on 3V line, burning a bunch of stuff. Luckily I have a dead 455G7 (for spare parts) so I managed to fix it (swapped burned parts) to a point that it will charge (both on barrel jack and usb-c), but it doesn't want to turn on. There is a 3V3 on a keyboard... -
Working on a Razer RZ09-0410AE22. The owner tried to replace the LCD on his own but forgot to disconnect the battery (
). System now does not power on and shows no signs of life. I've removed the board and done some quick measurements on the top of the board showing steady 19v power. Photos are attached.
Some guidance on further troubleshooting would be appreciated.
Thanks....05-16-2023, 07:28 PM