ux32vd power failure ?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • jasko_jacker
    Badcaps Legend
    • Oct 2014
    • 1137
    • italy

    #1

    ux32vd power failure ?

    The system goes on and after few second goes off, no short on coil, battery charge, 5v and 3v ok.
    I'm try to understand pwrgd signal to identify if there is a failure on pch.
    in the first pics the value on ux32vd board regard pwrgd signal
    in second pics a similar circuit that I have take from an asus k72 schematic to understand how this circuit work and I appreciate if someone can explain how it works
    what is the function of PM_RSMRST#PCH ?
    thanks
    Attached Files
  • zekaamel
    New Member
    • May 2016
    • 2
    • indonesia

    #2
    Re: ux32vd power failure ?

    PM_RSMRST#PCH is a signal from SIO to wake up PCH the value of signal is low voltage=0 if the value is high PCH will never reset or wake up..
    i assuming your prolem is in PCH,mybe you should try to reball PCH chip

    Comment

    Related Topics

    Collapse

    • Sus256
      HISENSE 65E7KQ PRO - no boot
      by Sus256
      Hi all!

      HISENSE 65E7KQ PRO
      RSAG7.820.13512 - chassis
      MT9618BAATAB - cpu
      RSAG7.820.12059 - power
      HD650Y3U77 - panel
      KLM8G1GETF - emmc

      The TV does not turn on, the standby indicator is on. All voltages are present.
      Emms is dead. Not readable, not detected.
      Replaced emmc.
      But with another dump there is no launch

      Terminal log

      UART
      <
      AC_ON
      RPMB key is not yet programmed

      HASH1_VERSION=0x00000000 64bit
      E-B
      FDE enabled
      layout pattern onebin by SAR7,0...
      06-01-2025, 02:11 AM
    • howardc64
      TCL 55S425 few horizontal lines, potential failure on both side of panel/buffer board
      by howardc64
      All left and right refers to looking from rear of TV (or looking from front with TV upside down)
      • TV came with vertical bars and no image. Found faulty TVS on left buffer board. Also replaced T-Con (may have damaged the original while hot air removing components, board has slight warp) and have full image but few horizontal lines on the screen. Some of the lines appears to be 2 pixel tall while others are 1 pixel tall.
      • Disconnecting left and right buffer board potentially reveals problems on both sides with different signals (unless this T-Con require jumper like Samsung FB_TRDY1&3) Fault
      ...
      07-24-2025, 05:17 PM
    • ctroxtell
      Carrier HK50AA063 display controller common failure help
      by ctroxtell
      I've got a control display for a Carrier chiller that I'm trying to understand what the common failure with these boards are. This is the board in question https://www.supplyhouse.com/Carrier-...arquee-Display all of them seem to develop a failure with the up and down arrow buttons on the right side of the display, the esc and enter keys I've never seen fail. Once these boards are plugged in they run 24/7, you used to have to press extremely hard with the end of the blunt screwdriver and you could still get the arrows to work but now it has completely stopped working. The button...
      02-05-2025, 05:31 PM
    • howardc64
      Vizio E55-F1 dark backlight zones. LED failure or Dimming Zone Driver?
      by howardc64
      Problem

      Fixing a dimming zone TV with LEDs not lighting up. Dimming zone circuit introduces added variable to diagnose LED and/or Dimming Zone Driver board? Some 1/2 rows of LEDs appears to be out in active dimming zone off AND some brightness flickering with active dimming zone high while playing changing video



      Model & Board Pics



      Conflicting Spec

      Vizio indicate this TV has 10 dimming zones. However, LED strips and Zoned light driver connector suggest 12

      https://www.shopjimmy.com/vizio-gj-2k1...
      10-10-2024, 01:16 PM
    • sam_sam_sam
      Mitsubishi CNC switching power supply board dead / relay board bad diode failure
      by sam_sam_sam
      I was working on this CNC machine today found no keyboard functioning no control relay powering on
      The screen powered on and was giving an operation error but the manual was not very clear about what the error exactly was but with a little bit of troubleshooting and finding out that the control relays not powering on and no keyboard functions we narrowed down to this one switching power supply which of course does not have any indicator LED light they are on the keyboard interface/relay controller board

      Found shorted diodes on main controller relays there are 3 of them that...
      01-07-2023, 05:43 PM
    • Loading...
    • No more items.
    Working...