Corsair RM 750 blown schottky diode near ES1DF

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • iyas132
    New Member
    • Aug 2019
    • 4
    • indonesia
    #1

    Corsair RM 750 blown schottky diode near ES1DF

    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 marked "SF" on the picture. Thanks!
    1 Photo
    Tags: None
    • прямо
      Badcaps Veteran
      • Sep 2022
      • 261
      • Indonesia
      #2
      B0540W-7-F, 40V 500mA Schottky
      Click image for larger version Name: O1CN018hhGeC1Qkupsdtwz6_!!2658592015.jpg Views: 85 Size: 489.0 KB ID: 3538947

        Comment

        • iyas132
          New Member
          • Aug 2019
          • 4
          • indonesia
          #3
          thank you for your help

            Comment

            Previous template Next

            Related Topics

            Collapse
            • MrSparkle91
              Help with a blown Diode (Lenovo 15ith6h)
              by MrSparkle91
              Hello everyone,

              I have recently gone to clean my laptop and noticed a bad Diode that's gone poof. I have also located it on the schematic also.

              Whilst I'm good at repairing stuff in general, I would like some kind insight into what I'm working with here and the Diode I would need.

              I have checked the whole laptop and suffer no issues usability wise, which is why I was shocked to find this, but am I right in thinking this is power voltage related?

              Thanks in advance....
              08-01-2025, 10:30 AM
            • lcdcaps1
              Usb rechargeable hair clippers blown tp4056 and zener diode
              by lcdcaps1
              Hi
              all
              I have a usb rechargeable hair trimmers that should work plugged in and charge
              it stopped working no led norhing

              I've opened it up and see the tp4056 chip has blown
              There is a zener diode that I tested and get a near short ohms reading no matter which way my leads are
              I don't know what to replace this with
              Please help
              thanks so much...
              5 Photos
              03-07-2024, 09:56 PM
            • mikay786
              Toshiba VCR / DVD blown diode?
              by mikay786
              I've got a shorted SB390 diode which was in parallel with UF5408 diode.

              d1031 = uf5408
              d1035 = sb390

              service manual pages 1-14-25 & 1-14-26

              Ive found a equivalent for the SB390 in the SB3H90

              what i wanted to know is it likely that the UF5408 has already been replaced?

              As in originally both diodes would have been SB390s

              So if i were to replace the pair could i replace both with SB3H90?...
              06-07-2023, 04:52 PM
            • nubie
              Chi Mei M236H1-L01 C2 Blown Diode Acer 24"
              by nubie
              Due to some moisture the VGHP/HVS1 line shorted and this diode D8 blew. The picture is there. It just fades in after some minutes and is quite solarized. Updates again take minutes.

              Any idea what Dioide to use? Thx.






              Many thanks...
              01-26-2024, 11:17 AM
            • hobostove
              Corsair RM1000e - Help identify 5VSB Zener diode
              by hobostove
              Hey there guys. I've got a Corsair power supply that's come across my bench dead. I usually don't mess with power supplies, but it's a slow week so I'm giving it a whirl.

              Taking it apart I heard a screw rattling around inside, and when I got it apart I found a couple blown components near what I think is the 5VSB area.

              There's a 22ohm resistor that's melted and open, but it still has the bands.

              The other part is a zener diode and it's top went to jesus, so I can't read the marking.

              It looks like the diode connects the source and drain of a TNY284...
              03-27-2025, 02:25 PM
            • Loading...
            • No more items.
            Working...