HP Desktop 8000 psu diode problem

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • NConstantinou
    Badcaps Veteran
    • May 2017
    • 334
    • Cyprus
    #1

    HP Desktop 8000 psu diode problem

    Dear all

    I was testing the above power supply and I found a diode T2D 01 which is shown dead.
    I checked in Google to find this part but I couldn't.
    I believe is schottky diode.

    Can someone help!
    Can i substitute with something else

    Thanks
    Tags: None
    • NConstantinou
      Badcaps Veteran
      • May 2017
      • 334
      • Cyprus
      #2
      Re: HP Desktop 8000 psu diode problem

      Maybe is not a schottky.
      on board the symbol is shown as standard diode connnected on pin 4 of TNY278PN
      HELP!!!

        Comment

        • sam_sam_sam
          Badcaps Legend
          • Jul 2011
          • 6037
          • USA
          #3
          Re: HP Desktop 8000 psu diode problem

          Can you post some pictures of this power supply

            Comment

            • CapLeaker
              Leaking Member
              • Dec 2014
              • 8136
              • Canada
              #4
              Re: HP Desktop 8000 psu diode problem

              Diodes don’t go dead if they are still in one piece. So I say that diode is o.k, because it isn’t shorted and it is a TVS diode. So keep looking... that diode isn’t your problem. Certain TVS diodes measure “open”.
              Last edited by CapLeaker; 04-18-2020, 07:19 PM.

                Comment

                • budm
                  Badcaps Legend
                  • Feb 2010
                  • 40746
                  • USA
                  #5
                  Re: HP Desktop 8000 psu diode problem

                  It is snubber diode (Zener and diode connected in series with Cathode to Cathode), it will read as open circuit. See similar internal connection in the spec. sheet attached. You will need high Voltage power supply to test it.
                  Show us good clear pictures of your board.
                  Attached Files
                  Never stop learning
                  Basic LCD TV and Monitor troubleshooting guides.
                  http://www.badcaps.net/forum/showthr...956#post305956

                  Voltage Regulator (LDO) testing:
                  http://www.badcaps.net/forum/showthr...999#post300999

                  Inverter testing using old CFL:
                  http://www.badcaps.net/forum/showthr...er+testing+cfl

                  Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                  http://s807.photobucket.com/user/budm/library/

                  TV Factory reset codes listing:
                  http://www.badcaps.net/forum/showthread.php?t=24809

                    Comment

                    Previous template Next

                    Related Topics

                    Collapse
                    • NicRac
                      monowheel repair,Is the diode the problem?
                      by NicRac
                      Hello everybody☺️ I am glad to be here and looking forward to a good discussion.

                      First of all, I am new here. Therefore I will shortly introduce myself.
                      I am Nico and currently I study Physics.
                      In my freetime I like to build and repair stuff. Especially big battery's.

                      A few years ago I got myself an electric unicycle, monowheel or however you call that.
                      The battery bms was broken so I replaced and resolder that. Nothing big.
                      I used this thing for some years and had a lot of fun. Unfortunately I used it last time in heavy rain. Usually everything...
                      5 Photos
                      07-26-2024, 06:13 AM
                    • iyas132
                      Corsair RM 750 blown schottky diode near ES1DF
                      by iyas132
                      Hi there, i am currently diagnosing my corsair rm750 that wont turn on, after a power trip.

                      Before the power trip, previously i need to push power button on my pc case quite a bit in order to turn the pc (and power supply on), however after the power trip now i cannot turn the pc on at all and i opened the power supply, and found out some of the component(s) are blown. (picture attached)

                      My current diagnostic is that the (schottky) diode marked "SF" in the 5Vsb circuit are blown and possibly the ES1DF diode too.

                      Can anyone help me identify the component...
                      1 Photo
                      12-30-2024, 01:34 AM
                    • Document Archive
                      HP Slim Desktop S01-aF0009nf Slim Desktop J5005 Specification for Upgrade or Repair
                      by Document Archive
                      This specification for the HP Slim Desktop S01-aF0009nf can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Slim Desktop S01-aF0009nf boardview and Slim Desktop S01-aF0009nf schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...
                      09-12-2024, 03:28 PM
                    • Document Archive
                      HP Slim Desktop S01-af1132a Slim Desktop i3-10100 Specification for Upgrade or Repair
                      by Document Archive
                      This specification for the HP Slim Desktop S01-af1132a can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Slim Desktop S01-af1132a boardview and Slim Desktop S01-af1132a schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...
                      09-12-2024, 03:28 PM
                    • Document Archive
                      HP Slim Desktop S01-aF0010ns Slim Desktop J4005 Specification for Upgrade or Repair
                      by Document Archive
                      This specification for the HP Slim Desktop S01-aF0010ns can be useful for upgrading or repairing a desktop PC that is not working. As a community we are working through our specifications to add valuable data like the Slim Desktop S01-aF0010ns boardview and Slim Desktop S01-aF0010ns schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification,...
                      09-12-2024, 03:28 PM
                    • Loading...
                    • No more items.
                    Working...