The Stripes are gone it got so hot

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • CudaDave70
    Senior Member
    • Jun 2008
    • 72

    #1

    The Stripes are gone it got so hot

    I have taken apart an IBM 6734ABD and it has a resistor that got so hot it destroyed any chance of me being able to ID. it. I checked the resistance on it and it is at 150 ohmsI have a tendantcy to not believe it to be correct since it got so hot. I replaced it with another 150 ohm and the voltage to the backlight inverter transformers is about 16 volts ,is that kinda high because the lights get pretty bright ,quickly. I also had to repalce some of the 4600 mosfets that were shorted,not to sure what came first here ,the chicken or the egg. My question is has anybody run into this problem before on this model?
    I am waiting for some more mosfets before I try it out again I will post a picture if anybody is interested in this.
    Dave
    I am pretty good at keeping a secret,it's the people I tell that can't keep their mouth shut!
  • CudaDave70
    Senior Member
    • Jun 2008
    • 72

    #2
    Re: The Stripes are gone it got so hot

    Ok
    I am pretty good at keeping a secret,it's the people I tell that can't keep their mouth shut!

    Comment

    • CudaDave70
      Senior Member
      • Jun 2008
      • 72

      #3
      Re: The Stripes are gone it got so hot

      OK ,I got er meself
      I am pretty good at keeping a secret,it's the people I tell that can't keep their mouth shut!

      Comment

      Related Topics

      Collapse

      • BlackScreen_22
        Harman Kardon sub TS11 (ds15 amplifer) blows fuse and mosfets
        by BlackScreen_22
        Hi, I'll start by saying that I'm not an expert and I've reached a point where I don't know what to try/do anymore...
        Starting from the beginning: I opened this subwoofer for the first time with a very strong smell of burnt electrical components, I realize that on the amplifier board there is a hole between V+ OUT and GND about the size of a finger, the damaged components were the shorted mosfets, two damaged zener diodes and two capacitors. I bought everything, I fixed the hole by cutting the pcb and putting a piece of a perforated board.
        I had no problems connecting mosfets and capacitors,...
        08-27-2024, 12:46 PM
      • kotel studios
        Intel D865PERL - no Vcore after replacing MOSFETs and MOSFET drivers
        by kotel studios
        Hi,

        Finally got time to fix this board up.
        At first it didn't give any POST codes. Turns out it was an unsupported Celeron D cpu. After dropping in an Celery 2.6gHz the CPU came out of reset with clock signal, but still no post codes. For a while it did work when I applied pressure to the ADP3168 chip, but on next reboot the MOSFETs started to burn. Then I left it as is for months.

        Now I came back prepared. Replaced the bad MOSFETs and the ADPxx18k drivers. Now I don't get any MOSFETs blowing up issues anymore. But sadly, the Vcore is missing. The whole VRM isn't...
        04-22-2025, 05:08 AM
      • flerre
        Gainward Phantom GTX 980 - mosfets w/ integrated driver NCP5369
        by flerre
        Hi!

        Managed to get a Gainward Phantom GTX 980 in an auction for a bin with components.
        No video out so I started fault finding and found a blown fuse for 3 mosfets. Started checking for shorts and found what I think is a short through all of those 3 mosfets; 0.1 ohms between "VIN" input and "VSWH" output. All mosfets in this gpu are the same ones (NCP5369) with integrated drivers and when I tried measuring the other ones through these ports they were somewhere in the kilo-ohms range.

        So, could I safely assume all of these 3 mosfets are...
        03-13-2022, 12:14 PM
      • Petros_Z
        Led stripes for Toshiba TV 32W1433DG
        by Petros_Z
        Hello, I have the TV of the title and it has problem with the led stripes. The code of the stripes is VES315WNDA-01. Also on the chassis there is a code "Model VES315WNDS-01". Searching for spare parts I found that there are led stripes for each of those codes. I don't know if someone had changed them before. Based on what code should I order the spare parts? From led stripes or chassis?
        Thanks in advance and sorry for my bad English.
        04-02-2024, 02:59 AM
      • NanoTesting
        Lenovo Ideapad 15IIL05, turns on and off with charger BUT works by injecting 20v after main mosfets
        by NanoTesting
        I got a 15-IIL05 that failed to turn on BUT IT DID TRY TO TURN ON and then turned off after 30+- seconds, i disassembled it and found a screw loose inside the case.
        With charger it turns on, fan spins but gives no image.
        Tested main mosfets no short, tested 3.3v,5v,DRAM, CPU etc and they were present.
        Reflashed BIOS, same problem.
        Replaced both main mosfets.
        Checked main mosfets again and i noticed that they closed once the laptop shut down, so i decided to bypass them and used a bench PSU to check how much power the laptop was drawing while trying to turn on, 20v@3A,...
        10-30-2024, 10:48 PM
      • Loading...
      • No more items.
      Working...