Asus X555LD, main board don´t power on. Only produces periodic clicks.

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • javi_tecla
    New Member
    • Feb 2018
    • 2
    • Spain

    #1

    Asus X555LD, main board don´t power on. Only produces periodic clicks.

    I everyone.
    I'm triying to repair the X555LD main board, but when I plug the power adaptor only produces a periodic sound, like "clicks". When it happens, all the voltage drops to zero and restarts the normal voltages again.

    I checked the adaptor voltaje and it's OK. The voltaje after the first mosfet is ok too.

    I measured the resistance of the coils and the electrolitic capacitors and it's ok.

    I need your help, I don't realice what can happen.

    Regards, and sorry for my English.
    Last edited by javi_tecla; 02-26-2018, 05:25 AM.
  • cacla
    Badcaps Veteran
    • Apr 2015
    • 442
    • /

    #2
    Re: Asus X555LD, main board don´t power on. Only produces periodic clicks.

    Chek tne main rails and the 2 mosfets on 19 volts rail

    Comment

    Related Topics

    Collapse

    • cheeky2
      Is it possible to upgrade from a Vestel 17MB97 main board to a 17MB110 Main board?
      by cheeky2
      I suppose the real question is whether the existing pinouts from ether a 17IPS71 psu are cross compatible with a 17IPS12 psu? If they are then the exchange of the main boards should have no issues providing the screen is compatible with both main boards. Obviously you can change the screen configurations easily enough (providing you have the correct files) for the main board. Why may you ask would I do this? Well a lot of the smart features are no longer working on a Hitachi 48HBT62U main board I wish to give it a new lease of life!
      Obviously the same LVDS connector for the screen connection...
      05-25-2024, 03:27 AM
    • Dani_2024
      Sceptre U550CV-UMR 4K LED, Bad Caps on Main Power Board?
      by Dani_2024
      Hi and thanks in advance for any input you might provide!
      I have a Sceptre U550CV-UMRD8POTV83BB 4K LED (this is a dumb tv) that I bought new in August 2021, so It's just completed 3 years.
      Main power board model: TP.MS3683.PC821 T-Con board: N4TP546UHDPU2L_BO

      Last Sunday I was watching a dvd and fell asleep for about half hour, when I awoke the tv screen was black and couldn't get the dvd menu to show, so I changed the input to antenna and had sound but no picture, turned it off. I then got online and found this great site! ....read many troubleshooting tips and this...
      10-28-2024, 05:06 PM
    • ygorsan
      LG 55NANO77SRA TV – Menu scrolling by itself even after removing button board (Main Board EBU66792103)
      by ygorsan
      Hi everyone,




      I’m looking for help with a persistent issue on an LG TV model 55NANO77SRA, which uses the main board EBU66792103 (also used in LG UQ80 and NANO75/NANO80 series).







      🧩 Problem Summary:
      • The TV keeps scrolling through the menu or selecting items by itself.
      • I removed the physical button board (the entire panel with power and volume buttons) and also disconnected the flat cable (CN202) from the main board.
      • The remote control is not in use (batteries removed), and the TV still shows the same behavior.
      • I
      ...
      Today, 08:34 AM
    • Asraf Atb
      Help Needed: Samsung UE55MU8000 Dead - Possible Main Board Issue
      by Asraf Atb
      Hi everyone,

      Im looking for some advice regarding my Samsung UE55MU8000 TV with main board model BN94-11606C. The TV suddenly stopped turning on and now shows no signs of life at all not even the standby light at the bottom.

      Initially, I suspected an issue with the PSU, so I took it to a repair center. They tested it and confirmed that the PSU works perfectly, even on other TVs. Based on that, I started investigating the main board.

      I disconnected the main board from the PSU, and the backlight turned on, which seems to confirm the main board is the issue....
      01-27-2025, 05:02 PM
    • JSin21
      Compatibility of main boards between different variations of samsung MU6100
      by JSin21
      Hoping someone here could possibly help. I have a few questions in regards to compatibility with main boards. But I'll give a quick short run down on what's going on first;

      I have Samsung Smart TV UA65MU6100WXXY version DA01

      Now years ago it started intermittently playing up after a lighting strike. Lighting hit the block of units i was living in at the time. Ever since that night the TV started having a mind of its own, It would randomly turn itself off or on, and all inputs stopped responding like HDMI, aerial, but USB still worked. Anyway, over the next few months...
      11-27-2023, 04:54 AM
    • Loading...
    • No more items.
    Working...