When good grounds turn bad—isolate

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  • pajdek
    Lenovo Y700-17ISK turn on and off
    by pajdek
    Hello, i have some issues with my laptop Lenovo Y700-17ISK (motherboard BY511 NM-A541), it started when i turn on the laptop, but the lcd wont turn on, i then connected it via hdmi to tv and screen was ok. So i thought maybe lcd stripe is faulty, i removed the bottom cover, disconnected main battery, reset the cmos by disconnecting battery for 1 min, then slighty move the lcd stripe. Conncted power supply and tuned on my laptop, the lcd turn on, it started to load os, then it turn off, after a second it turn on, then after like 3 seconds turn off again, and so on. Removed power supply, waited...
    09-20-2023, 02:49 AM
  • RdeveLabs
    MSI GF63 THIN 11UCX (MS-16R6) LAPTOP WON'T TURN ON AFTER RESTARTING
    by RdeveLabs
    To all the members here...

    Let me tell you a little bit about what happened to my laptop (MSI GF63 THIN 11UCX model: MS-16R6) that “maybe” you know how to solve this problem.

    So before this problem happened, my laptop was running smoothly. When I wanted to restart my laptop, it looked fine at first. But after I waited for this restart process to take a long time, until finally I panicked (because the restart process did not finish plus the laptop screen only showed a black screen), I immediately pressed and held the power button to force the laptop to turn off. But...
    05-05-2025, 04:59 AM
  • maxim2511
    LG 55EC930V OLED - swich on swich of no screen
    by maxim2511
    My Oled Tv is 55inch tv, 3 days ago I notice that middle of the screen is getting warmer and on picture I have ghosting, missing red color. Color red was still displaying, but it was not so strong as corners of the screen and watching some movies makes me angry.
    Then I get an idea to take it apart and clean boards from dust.
    In side of Tv was not so bad, I take compressed air in can, and gently blow up.

    Also I was thinking to styrofoam sponge to isolate power board from screen that the middle of the screen will not worm so much. Because Led on screen when gets higher...
    05-14-2021, 02:21 AM
  • robante15
    Acer Aspire 4520 won't turn on after reboot
    by robante15
    Hello, I have an Acer Aspire 4520 from a couple of decades ago and I want to repair it solely for nostalgia.

    It happens that when I turn it on after having been disconnected for a long time, it turns on without problems, it tells me that the BIOS has been reset and that it will load the factory settings, if I tell it to continue, the computer turns on and everything works fine.

    The moment I turn it off and want to turn it back on a second time, or restart it and try to start it again, it no longer gives an image, and it no longer responds.

    If I remove the...
    04-06-2024, 06:50 PM
  • masoksian
    Dell latitude e7470 not turn on .power buton on off and Run Power problem
    by masoksian
    Hi everyone,

    I am dealing with the problem of turning on and off my Dell e7470 notebook.

    The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.

    The system does not turn on, there is no post.

    I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
    The problem continues in the same way.
    I tried to turn on the Fn key, nothing came to the screen....
    02-15-2025, 12:08 PM
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