Try our new boardview, bios, & schematic search. Over 1.3 million files for download!

QH7 AND QH8 TORN OFF DELL LA-K452P MOTHERBOARD

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • kjchatman
    Badcaps Veteran
    • Dec 2012
    • 240
    • united states
    #1

    QH7 AND QH8 TORN OFF DELL LA-K452P MOTHERBOARD

    I'm doing this repair for someone who claims that the laptop simply stopped coming on. these two mosfest are clearly ripped from the board and everything else seems ok. One of the two mosfets was still setting near the area. These seem hard to come by without ordering from overseas. Can I reattach only one of the two and get this to power on again?
    Attached Files

    Premium supporters get full download access and other benefits.

    Tags: None
    • natic
      Senior Member
      • Sep 2018
      • 80
      • Slovenia, EU
      #2
      Originally posted by kjchatman
      Can I reattach only one of the two and get this to power on again?
      Of course not. Both transistors must be soldered.

        Comment

        • kjchatman
          Badcaps Veteran
          • Dec 2012
          • 240
          • united states
          #3
          well i wired the torn traces and it powered up but without the transistors the usb-c port won't work and im sure the customer won't mind

            Comment

            Previous template Next

            Related Topics

            Collapse
            • thinkcentre
              Dell Optiplex 3060 Micro USFF (IPCFL-CG Motherboard) - No LED / Short Circuit
              by thinkcentre
              Hello,

              this is my first post at Badcaps and in general i am new to fixing electronics. I am looking forward to learn a bit more about diagnosing and repairing :-)

              What I have around is a DELL OPTIPLEX 3060 Micro (USFF), which is not powering on, even not showing any signs of life (No amber / white LED).
              I got a original 65W DELL PSU / Power brick (PA-12 / 074VT4) which hopefull should be the correct one. I could get another DELL PSU with the Partnumber 0G6J41 with the same 4.9mm DC Jack connector as the one I already have, but I dont think that would help (maybe...
              11-09-2025, 12:39 PM
            • mirak
              Questions about a Dell Latitude 5410 motherboard, REV A00 PWB P/N 8578V
              by mirak
              Hi, I have a Dell Latitude 5410 motherboard (LA-J37), REV A00 PWB P/N 8578V.

              I'm building a custom setup similar to a tablet but without touch capability by attaching this motherboard to the back of a USB-C monitor without the chassis. I have several critical questions before proceeding:

              First, does my specific motherboard revision REV A00 PWB 8578V support USB-C power delivery charging, in order to be able to use the external monitor with just one usb c cable for both charging and receiving the image from the mb? I've read conflicting information suggesting some 5410...
              05-06-2026, 03:51 AM
            • Geeker007
              9th Gen Dell Optiplex Micro PC motherboard repair: Short Circuit?
              by Geeker007
              Hi All, I have a 9th Gen Dell Optiplex micro PC motherboard which doesn't power on. When I connect the motherboard with power adapter, it goes into safe mode and turns off. So from info I have gathered online, it looks like there is a short circuit on the motherboard. So can you guys help me with figuring out the issue?

              I am new to electronics repair, so my queries could be naive but I am ready to learn.

              So I have a multimeter and a solder with me. But I can try to get a variable voltage power supply with a thermal camera as well. From what I seen online, best way is...
              01-28-2025, 03:31 PM
            • Julian Bailey
              Dell Latitude 5350 Ultra 7 Motherboard
              by Julian Bailey
              Hi

              I have a Dell Latitude 5350 Ultra 7 Motherboard I am trying to repair that has a blown chip.

              The chip is marked as eHOLH similar to the one I have pictured.

              Any ideas what it does and what the pin outs are as 3 tracks have gone and need to find out what / where they went / did etc.

              Dell PN of the motherboard is 08DCGW.




              Below is the area I am trying to repair:



              Does anyone have a picture of this motherboard in this area they could take and upload?

              Cheers...
              07-03-2025, 11:25 PM
            • Bowline
              Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
              by Bowline
              My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

              Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

              My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
              The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
              I have tried multiple different Dell power adapters. My Dell...
              06-11-2025, 10:13 AM
            • Loading...
            • No more items.
            Working...