TCP42ST30 6 Blinks

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Plurxtc1
    Senior Member
    • Oct 2014
    • 136
    • USA

    #1

    TCP42ST30 6 Blinks

    I have a TCP42S30 that uses a TNPA5349 with 6 Blinks. I check the SC2 Connector with both probes and it displays 120K ohms. If the board was short then it would show .03 Ohms. I checked the Mosfets to see if they were short and they were not. Any tips where to start?
    Attached Files
  • Plurxtc1
    Senior Member
    • Oct 2014
    • 136
    • USA

    #2
    Re: TCP42ST30 6 Blinks

    Found a short on Q441 DG302. I will give an update once it's been replaced.

    Comment

    • tvtimmy
      Badcaps Legend
      • Mar 2015
      • 1160
      • usa

      #3
      Re: TCP42ST30 6 Blinks

      Buy a screw update from Shopjimmy. They have lock washers to prevent another failure.

      Comment

      • Plurxtc1
        Senior Member
        • Oct 2014
        • 136
        • USA

        #4
        Re: TCP42ST30 6 Blinks

        DG302 Fixed the problem

        Comment

        • tvtimmy
          Badcaps Legend
          • Mar 2015
          • 1160
          • usa

          #5
          Re: TCP42ST30 6 Blinks

          Good job, and thanks for the update.

          Comment

          Related Topics

          Collapse

          • DynaxSC
            Extreme High Current & Low Voltage Short Killer ??
            by DynaxSC
            Hi Folks

            I'm looking for a extreme high current short killer solution for a reasonable cost.

            I have an LGA1700 motherboard (ASUS PRIME Z790-P WiFi) where I exchanged the LGA socket already 3 times, and every time after the socket exchange I get a short of power supply lines VCORE (V variable) and VCCIN_AUX (1.8V).
            After taking off the socket, the shorts dissappear again.
            The soldermask on the socket is already partially demaged from the heat, so I have reconstructed the soldermask by manually painting the missing soldermask parts with a very small top of a...
            10-15-2024, 10:13 AM
          • Stephen
            MacBook Pro 14" A2442 Short on PPBUS_AON but no short present when injecting voltage!
            by Stephen
            I check PPBUS_AON and there is a short present on the line, the computer shows a short when testing for short to ground, so when I inject voltage into the line, I get 0AMPS so no short is showing up. I have replaced a blown cap on this board that exploded and tested for the short and it is now removed. Any suggestions? I tested voltage at the line when the fuses are connected and I am getting 1.2 Volts at the line.
            02-06-2025, 12:03 PM
          • Victor Moreira Silva
            Acer Nitro 5 LA-L181p power LED turns on by 5 secs (Short on PCH rail?)
            by Victor Moreira Silva
            Hello everyone,

            I'm trying to repair my old Acer Nitro 5 (AN517-54-55T5). I've already bought a new laptop, so this is more of a learning project. For the experience, with no high expectations of success.

            Well, my decice specs are the following:

            Model: Acer Nitro 5 AN517-54-55T5
            CPU: Intel Core i5-11400H
            GPU: NVIDIA GeForce GTX 1650
            Motherboard: GH51G LA-L181P Rev:1c

            The symptom:
            When pressing the power button, the power LED lights up for about 5 seconds and then turns off. Initially, the issue was intermittent: sometimes...
            05-26-2025, 10:49 AM
          • Tom_x
            HP Omen 15-dc0001nh capslock blinks 5 long and 3 short
            by Tom_x
            Hi,

            I have HP Omen 15-dc0001nh (DA0G3DMBCE0 rev: E) with blinking capslock 5 long and 3 short. Fans spin constans speed.

            HP worked for 2 months after i repaired (before damaged by thunder via rj45 port) I removed LAN ic and powered on

            Now with blinking capslock:
            All voltage present on big coils, except +VCCGT (i don't know this need for booting)

            I tried re-flash bios with known firmware- same result (now i don't have spare bios chip to test spi flash failure)
            DDR4 ram is ok, tested on other laptop
            WLAN and SSD removed,...
            07-20-2023, 10:10 PM
          • aaronkatrini
            Help me find the short circuit on this WORKING Nvidia GTX1650
            by aaronkatrini
            Hi all,

            Recently picked up this GTX1650 at a local flea market for a low price and wanted to use it on my secondary PC. I first tested the card and saw the fan spin for a split second and then nothing. Immediately I thought of a short circuit. Disassembled and found a shorted SMD capacitor, injected voltage into it (1V/4A) and two Mosfets got hot immediately (QN3103 & QN3107). Desoldered these Mosfets and the card turned back to life.

            Bought replacements from Aliexpress and replaced them afterwards. Tried the card but still the saw the fan spin for a split second...
            04-18-2024, 03:15 PM
          • Loading...
          • No more items.
          Working...