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  • cmg3631
    by cmg3631
    Hello all!
    I have been working at a Vizio vo47lfhdtv10a. I am at a point where I am confounded. I replaced 2 680uf 35v caps on both the slave and master that were bulged. Nothing. Then I found bad 470uf 35v under the heat shield on main power. I replaced it with a 1000uf 35v that I had. My understanding on that it is ok to go equal or higher. Still nothing. What has me baffled is I am supposed to have 0 voltage on pin 1 power on/off but I have 15.5v when tv is off but 3.13 when I power on. These were the readings even before I changed the caps. Any help?

    Thank you,
    ...
    12-03-2017, 09:32 PM
  • huzo
    Dell 5590 no image on LCD,HDMI works ,the board works...
    by huzo
    The board is LA-F411P ,DELL 5590 ...

    The screen polarises,no backlight,no image,only black screen,tried another screen,the same,so there is no backlight,but there should be an image when i shine a lamp behind the screen,but there is none...only dark screen...when screen is connected and i press F8 to turn the image over to the external monitor, the external monitor gets coloured bars ,but when i disconnect the cable from the EDP ,the HDMI picture is good...What could be the problem? I don't have another edp cable, but i measured it with meter and it comes out good...i am baffled......
    02-16-2025, 03:08 PM
  • kotel studios
    Compaq series PDP-124P PSU - dies after a split second
    by kotel studios
    Hi

    I am quite baffled at this PSU that came out from an dead HP d530 (asus P4SD). Tested all the common failed components, all are fine. D2/3 are both fine. Not shorted in any way. Recapped the whole 5VSB board and the PSU came "back" from the dead (earlier there was a short from neutral to earth, went away disassembly). Now even with 5 load HDD's it's still turning off after a split second. All diodes seem to be fine. Caps are OST, which IMO rarely die. There is 3.3v on PS_ON and 5V on 5VSB. Removed most of the glue there was (pictures don't show it). The traces that look...
    12-19-2024, 01:15 PM
  • Luke Anders
    Lenovo Legion 5 (15ACH6H/17ACH6H) - Does not boot into any OS
    by Luke Anders
    Hi everyone,

    A few details about the laptop itself:

    Name: Lenovo Legion 5
    Model: 15ACH6H (according to its back cover details) / 17ACH6H (according to the BIOS Menu)
    BIOS Version: GKCN60WW
    EC Version: GKEC65WW
    Serial Number: PF39AQ7Z
    Board Model: NM-D562 Rev 3.0
    RAM: 16GB Installed, DDR4 (brand new)
    NVME: 500GB NVME drive (brand new, installed Windows 10 onto it for testing purposes and tested on another laptop (a dell XPS) works perfectly fine and boots in)

    I bought this laptop recently from eBay as a faulty device....
    10-12-2024, 05:13 AM
  • SuperAman
    Keyboard replacement not working issues with Win 10/11 (2) different laptops
    by SuperAman
    I have had an issue that I've never come across in all my years of laptop repairs and it has happened twice in the last couple of weeks. The issue occurred on 2 laptops.


    1. The first laptop a Lenovo Yoga 7 convertible 14 inch 13th gen i7. This laptop came in working, customer wanted to replace the top keyboard assembly for cosmetic reasons so I replaced the keyobard assembly and put their touchpad in it. After booting into windows it would not work, so I assumed I needed to update it or something. Since they didn't give me the Admin account, as it was a company laptop and the...
    08-31-2024, 07:30 PM
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