hp15-f233wm volts disappear

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Abdelmonzon
    New Member
    • Jun 2022
    • 1
    • Cuba

    #1

    hp15-f233wm volts disappear

    Hello friends, I am new to the Forum and new to laptops because I only repaired desktop PCs.
    I have an hp15-f233wm that gets 19.5 volts and 3.3 volts of ignition, in fact when pressing the ignition button the coils get 1.8v and 1.5 volts but they disappear immediately and come back I would like help please thanks before hand
    .
    Last edited by SMDFlea; 06-25-2022, 10:45 AM. Reason: english translation
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 21986
    • UK

    #2
    Re: hp15-f233wm volts disappear

    link to schematic https://www.badcaps.net/forum/showpo...01&postcount=9
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    Related Topics

    Collapse

    • u666sa
      HP Envy x360 13-bf0013dx (i7, 8gb) ipa32 la-m024p rev 1b short near PJ1802, type-c not switching to 19 volts
      by u666sa
      Laptop is HP Envy x360 13-bf0013dx, hp website link, it's an i7-1250U with 8 gig onboard ram.
      Platform: ipa32 la-m024p rev 1b



      Originally you'd plug power supply into it and it would take up to 1.2 amps and then drop to 200 milliamps and then go back up again to 1.2, staying all the while at 5 volts. Pressing power button would results in power LED blinking amber 3 times. 3.3 volt rail, 5.1 volt rail present, main power rail 8.8 volts. Power button test pads near EC chip 2.7 volts.

      I found a short on the other side:



      ...
      10-04-2025, 05:03 PM
    • Nagyesz
      Lenovo ideapad 330ICH - Dead, no volts on coils
      by Nagyesz
      Hi everyone, I replaced this motherboard because it was important to get it working, but it's been with me for a very long time. Now I finally have time to figure out what the problem is,
      I've never encountered something like this before;

      No charging light, full dead

      Lenovo Ideapad 330-17ICH
      • PL3102: 5 ohms
      • PL3001: 3.2 ohms
      • PL3101: 2 ohms
      • PL5801: 3.5 ohms
      • PL5501: 270 ohms
      • PL701: 35 ohms
      • PL501: 146 ohms
      • PL503: 390 ohms
      • PL402: OL (0.27V) +5VALW_P
      • PL301: OL
      • PL401: OL (0.03V) +3VALW_P
      + Dc-in mosfet @PQ311 pin 5 20v, pin 1-4 0V , @PQ312 no volts...
      10-11-2024, 10:12 AM
    • bembeno
      hp 8560p no display - volts on cpu coils
      by bembeno
      hp 8560p uma no volts on cpu coils
      cpu controll is max 17511
      can any one plz explain whats the requirement to this ic to startup
      05-22-2022, 03:43 PM
    • supermattch
      HP 15dy-2021nr wont power on mystery volts
      by supermattch
      Hi everyone.

      I am diagnosing my personal laptop, because it wont power on and no leds light up.

      At the dc-in there are 8 pins, 1 and 2 shows healthy 19.66 volts. The next three are ground, but the 6th one shows .283 volts. This is strange to me, it should be 3.3 or 5 or aome volts not 0.283v. As I am new to this, I would like some guidance. Please someone advise me on what to check next.

      Oh the boardview and schematics I am using is for a similar model as I cannot find the proper one anywhere. Quanta DA0P5HMB8F1 rev F. Nowhere on the internet.
      09-23-2025, 12:13 PM
    • ravi_1617
      ASUS X1504 & X1404ZA no vcore power
      by ravi_1617
      Hi
      Unable to find schematic diagram .
      As i inject Adaptor power board starts its self without pressing power switch
      observed when, on 3.3 volt, 5 volt & 1.8 volts present

      No power at v-core coils (3 coils) Value Ohms reading 2 coils showing 9.4 Ohms & 9.2 Ohms ,one showing 32 Ohms
      no power at coil ,19 volt present PJP8601 entering pin 2345 (chip no BCLEXS total 20 pin

      battery is also not charging
      if i try to force power off turns OFF ,turns of after 15 seconds than on by itself

      Tried flashing few bios from this...
      Starts
      09-11-2024
      Ends
      09-12-2024
      09-12-2024, 10:52 AM
    • Loading...
    • No more items.
    Working...