DEll 3521 no power ic power em em replacement with this

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • khaledalhanafy
    New Member
    • Jan 2018
    • 7
    • Mansoura

    #1

    DEll 3521 no power ic power em em replacement with this

    Connect the charger ang the volt on 2 coils beside ic power em em
    Don't find 3.3 volt and 5 volt is 0 volt
    Change ic power em em with tps 51125 voltage 3.3 , 5 v come back and laptop
    Working fine




    Attached Files

Related Topics

Collapse

  • sam_sam_sam
    Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
    by sam_sam_sam
    I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

    One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
    03-31-2024, 02:12 PM
  • PantherDave
    Microsoft Surface Pro (5th gen) model 1796 - no power
    by PantherDave
    Hi all!

    I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. ๐Ÿ˜…

    I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
    https://www.badcaps.net/forum/troubl...-hardware-devi...
    05-29-2024, 02:01 PM
  • Mark01
    Dell Optiplex 7490 AIO - red power led after flash
    by Mark01
    Hi guys,

    This is my first post! ๐Ÿš€
    I have no idea what Iโ€™m doing, but Iโ€™m learning by trial and error.

    Iโ€™m currently working on a Dell Optiplex AIO 7490โ€”one of a bunch of AIOs that mysteriously failed to POST just a few days after the warranty expired. The original issue was that the PC worked fine until it was rebooted, after which it got stuck on a black screen (no backlight), with fans spinning at normal speed and a solid white power LED. Forcing it off by holding the power button would just cause it to switch on automatically and get stuck again on...
    07-04-2025, 12:54 PM
  • zlr8r
    Dell inspiron 17 (7786) - DP/N 09P7JP - odd power issues, starting with no power LED
    by zlr8r
    hey guys, hoping for some pointers to repair an eBay bought "faulty" laptop.

    Ill try and give as much info as I can.

    Dell Inspiron 17 (7786) Laptop
    Service Tag: 5J0NHT2
    Bios: 1.9.0

    When I received this , it would only flicker on the KB backlight for a second, then off and on.
    Then it started getting weirder!
    Sometimes when attaching the AC power supply, and pressing various pre-boot diagnostic keyboard keys... it did try to boot, in fact out of a hundred attempts, the laptop did actually boot into the Bios ! but never has...
    12-12-2023, 09:31 PM
  • jinu_j
    Dell 2209WA - power supply - Fusible Resistor replacement
    by jinu_j
    Hi

    I am trying to repair an ancient Dell 2209WA Monitor which suddenly shut off with a pop sound. On investigation found that one of the fusible resistors had blown. Further investigation identified multiple components as faulty because of which the fusible resistor blew. Please refer the attached circuit diagram showing the components that were found to be damaged.

    1. FR950 - blown fusible resistor - 0.2 Ohm 1W
    2. Q950 - shorted Q950 MOSFET - 650V 10A N Channel Mosfet
    3. R835 - Blown Resistor - 20KOhm SMD resistor
    4. D930 - Shorted Schottkey Diode...
    05-03-2025, 10:51 PM
  • Loading...
  • No more items.
Working...