la-9104p 3.3v & 5v Ic pin 18 enable signal not comming

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Sanjeewait
    Senior Member
    • Aug 2016
    • 63
    • Sri Lanka

    #1

    la-9104p 3.3v & 5v Ic pin 18 enable signal not comming

    hello i need to help
    dell 3521 la-9104p 3.3v & 5v Ic pin 18 enable signal not coming
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 21948
    • UK

    #2
    Re: la-9104p 3.3v & 5v Ic pin 18 enable signal not comming

    Which IC do you mean. PU200 is +3VALWP ,+5VALWP .Pin 18 is not connected.
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • Sanjeewait
      Senior Member
      • Aug 2016
      • 63
      • Sri Lanka

      #3
      Re: la-9104p 3.3v & 5v Ic pin 18 enable signal not comming

      PU200 is +3VALWP ,+5VALWP .Pin 18 is not connected.

      Comment

      • mcplslg123
        Badcaps Legend
        • Jun 2015
        • 7262
        • india

        #4
        Re: la-9104p 3.3v & 5v Ic pin 18 enable signal not comming

        If there is no +3valw and +5v alw , Then first check pin16(VIN) and next check pin 8 & 17 for voltages. Have you checked resistance to gnd(diode mode) on PL200/PL201??

        Comment

        Related Topics

        Collapse

        • tccyo22
          Xbox One Original missing 12v enable signal
          by tccyo22
          Hi there, I have an Xbox One original in which I have all the 1.8v, 3.3v and 5.0v standby power rails present, however my 12v rail is not turning on and the enable signal PSU_V12P0_EN from the SMC to turn the power supply on is missing. There is high resistance on this line so it's not shorted directly to ground which leaves me with not many options.

          Was looking at a schematic and see the enable is created by the SMC. I have 3.3v on SMC_RST_N_IN but I'm a little stuck on where to look next. Is it likely that the SMC has gone bad or am I missing something else (it's my first time with...
          08-14-2023, 06:06 AM
        • CoinCoin88
          Garage door RX unit (Cardin S38C) does not short relay to send opening signal
          by CoinCoin88
          Hello everyone,

          I'm turning to the Badcaps community to help me troubleshoot the radio Rx card from my (old) garage door opener. While I could just ditch that card and replace the whole system, I first would like to understand "why" it suddenly stopped working, because that's just how I am wired...!

          Some basics: the receiver works on a 30.875 Mhz frequency. Yes, I'm aware this is not in use anymore in a looot of places. It does not use any rolling code, it's just a regular dip-switch code that you have to set up on both the receiver and transmitter. The receiver...
          09-15-2025, 03:36 AM
        • howardc64
          Vizio M65Q7-H1 Red Vertical Strips fixed by tape blocking LC1 signal to half of the panel
          by howardc64
          Failure Symptom



          No picture, just red vertical stripes. Google search shows quite common problem for these recent Vizio M series although red vertical stripe pattern may differ. Some call it "Netflix" boot screen haha.

          Where is the short?

          Panel has 4x buffer boards. Quickly found the 1/4 panel buffer board with the problem by selectively disconnecting buffer board flex cables.



          Having recently fixed another Vizio with similar symptoms that was a shorted ESD diode array ( link ) Probed the ESD diode array but...
          05-27-2025, 02:56 PM
        • JayPoorJay
          Converting +/- 5v to a Usable Hz Signal
          by JayPoorJay
          Good morning.

          I have posted here before and have gotten AMAZING advise (thank you!). I'm back for more. This BCaps Sub Forum is so well attended I thought I would post here.

          This question is for an automotive application but has to do with what are essentially electrical questions and problem solving... If this is inappropriate I get it. Feel free to delete it or move the question.

          The V 12 Jaguar XJS is notorious for overheating in stop and go traffic in hot weather... Y'all will be potentially helpinh a LOT of people. The solutions and directions...
          08-07-2022, 08:35 AM
        • supravit2000
          PS4 fat has inconsistent signal after HDMI replacement
          by supravit2000
          Hi, guys!

          I am not a professional, all I can do is solder stuff on the boards, so I would really appreciate it if someone with knowledge shares his experience/thoughts on a problem I have with a PS4 console.

          My friend gave me an original fat PS4, board model SAB-001, with WLOD, that has been previously opened. I changed the HDMI port, couple of pads on the board were ripped, which I connected to the corresponding caps/resistors? Just did so as in a shown diagram (one of the ground pads I ripped off and left it not connected). However, there was still no signal, so...
          12-19-2022, 08:08 PM
        • Loading...
        • No more items.
        Working...