DA0XKTMB8C0 rev. C does not turn on

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • marcelofct
    Senior Member
    • May 2019
    • 122
    • chile
    #1

    DA0XKTMB8C0 rev. C does not turn on

    Hello friends, I have this motherboard which does not turn on I have 19v on the entire motherboard but it is not able to turn on
    I can't find a diagram or something to guide me, I checked charger bq2480s, apparently it has everything ok, since it delivers the 25 v to the corresponding mosfet
    and then I can't find the 3 v and 5v always help me solve it please or if you need more information

    regards
    Tags: None
    • mcplslg123
      Badcaps Legend
      • Jun 2015
      • 7262
      • india
      #2
      Re: DA0XKTMB8C0 rev. C does not turn on

      Look for each and every PWM ic. there may be 2 separate IC for 3V and 5V or a single IC for both 3V/5V. Locate that IC first and give us the top markings of that IC. Which KBC is used here??

      You should share as much info as possible so that someone can suggest something. What you have described is not enough.

        Comment

        • marcelofct
          Senior Member
          • May 2019
          • 122
          • chile
          #3
          Re: DA0XKTMB8C0 rev. C does not turn on

          Originally posted by mcplslg123
          Look for each and every PWM ic. there may be 2 separate IC for 3V and 5V or a single IC for both 3V/5V. Locate that IC first and give us the top markings of that IC. Which KBC is used here??

          You should share as much info as possible so that someone can suggest something. What you have described is not enough.
          sorry for the little info ,
          I will look for what you indicate, apparently it would be these ICs
          attached images
          I will check again for more news
          Attached Files

            Comment

            • mcplslg123
              Badcaps Legend
              • Jun 2015
              • 7262
              • india
              #4
              Re: DA0XKTMB8C0 rev. C does not turn on

              No, this 5335 ic is not your 3V/5V PWM IC. Datasheet linked for GNT 5335.
              https://cdn.badcaps-static.com/pdfs/...ab6fd587d6.pdf

                Comment

                Previous template Next

                Related Topics

                Collapse
                • 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
                • 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
                • dqtech
                  lenovo x240 nm-a091 wont turn on
                  by dqtech
                  i got this laptop with no power issue....i flashed the bios and laptop can turn on and use normally....but when i shut it down and rest for few minute (2-3 minutes), it wont turn on....i have to flash bios again...any idea what is the problem?...when i shutdown and suddenly press power button to turn on, it will turn on normally....problem happen when i rest the laptop 2-3 minutes after shutdown, it will not turn on....i need to flash bios again
                  board number VIUX1 NM-A091 REV:1.0...
                  02-07-2024, 01:57 AM
                • Loading...
                • No more items.
                Working...