hp 14s-cf0125tu wont turn on

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • dqtech
    Badcaps
    • Jul 2018
    • 639
    • N/A
    #1

    hp 14s-cf0125tu wont turn on

    board number hedwig-6050a2993001-mb-a03 ....i cannot find the boardview nor schematic for this model ....the problem is laptop wont turn on....current load only read 0.020ma when press power button (standby 0.00ma)...here i attach voltage reading on every coil
    Attached Files
    Tags: None
    • dqtech
      Badcaps
      • Jul 2018
      • 639
      • N/A
      #2
      i try flash bios but still not working...1.8v present on bios chip

        Comment

        • mon2
          Badcaps Legend
          • Dec 2019
          • 14662
          • Canada
          #3
          Check the resistance to ground of each inductor. Checking for a shorted cap on a power rail.

            Comment

            • dqtech
              Badcaps
              • Jul 2018
              • 639
              • N/A
              #4
              Originally posted by mon2
              Check the resistance to ground of each inductor. Checking for a shorted cap on a power rail.
              no shorted cap on power rail....but i check on this ram coil no voltage at all...it should have 1.2v right?
              Attached Files
              Last edited by dqtech; 01-02-2024, 10:38 PM.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • Gjackson
                  ADP-160FR ps4 slim PSU, shuts down under load and has severe coil whine.
                  by Gjackson
                  Hi all, the PSU originally had a no 12v issue where as soon as I bridged the 5v standby to the ACDC_stby the psu would switch itself off completely. I monitored the voltage on the main filter caps while doing this and saw that the PFC was bringing the voltage up to around 360vdc before shutting down. Given that I saw that as a little low I replaced the PFC feedback resistors from a donor PSU and that got it to power on, without a load no coil whine is present and there is a stable 12v however as soon as I put it in the PS4 it starts whining really badly, however 12v remains stable but after a...
                  01-13-2024, 10:34 AM
                • Inforgalaxie
                  MACBOOK PRO A1398 loop
                  by Inforgalaxie
                  This macbook not turn on when i press the power buton. I need disconect the power cable , press 10 seconds the power buton, and press again to turn on.

                  But when turn on not load the system and are looping.. video attach....
                  08-20-2025, 07:00 AM
                • araxnido
                  Programming KBC IT8987VG ASUS TUF FX506L RT809F+PEB
                  by araxnido
                  Dear friends, I want to share my experience repairing an ASUS TUF FX506L gaming laptop motherboard: DABKXDMB8E0_F_BKXD. Boardview and schematic are available, as well as the BIOS and ITE ROM.

                  When the customer brought in this laptop, it was initially dead; it showed no signs of booting for any reason. After hours of measurements, checking each stage, MOSFET, and seeing if there was a short circuit in any capacitor, I discovered a strange 0.7V leakage voltage on the 3V_S5 rail, particularly on the PL9 coil, with the board not powered on. There were 3V_LDO and 5V_LDO voltages, which...
                  06-10-2025, 09:26 PM
                • adelfr2009
                  HP Victus 15-fb dag3pamb8d0 Short on VCORE – How to Confirm CPU Fault?
                  by adelfr2009
                  I have a laptop HP Victus 15-fb with motherboard DAG3PRMB8D0, CPU Ryzen 7535HS, and GPU RTX 2050. The laptop has a power issue: it does not turn on at all, and there is no light on the DC jack.
                  After inspection, I found that an NMOS near the charger input had a short. I replaced it, but the short remained on the 19V line. I checked the charging circuit and it was fine, but the short appears after the current sense resistor near the charger. The charger does not pass current when connected, so I inject 3V–4V after the sense resistor. No component gets hot, except the CPU which becomes...
                  09-28-2025, 10:21 PM
                • momaka
                  KingWin ABT-650MM 650 Watt ATX PSU [PCB: SW8835REV:A]
                  by momaka
                  For today's thread, I have a KingWin ABT-650MM ATX PSU. Official web page with the PSU specs is still up and can be found here:
                  http://www.rmac.kingwin.com/products.../abt_650MM.asp

                  I just can't help it when I see a broken / for parts PSU on eBay that's listed for cheap and looks at least somewhat interesting. Well, OK, I won't lie – on the outside, this PSU looks anything but interesting. It's a plain gray box with colorful “spaghetti cables”.




                  What mostly drew me into buying it is its 2x PCI-E power connectors...
                  03-29-2022, 11:34 PM
                • Loading...
                • No more items.
                Working...