Please help me to identify this IC (THAC KHD) and Mini PC Mainboard

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Hauke
    Senior Member
    • Jan 2017
    • 77
    • Germany
    #1

    Please help me to identify this IC (THAC KHD) and Mini PC Mainboard

    Hi!

    I got a defective mini PC mainboard which I am trying to repair.

    I don't know the model of the mini PC and I can't find anything about this board online.

    Click image for larger version Name: board_1.jpg Views: 77 Size: 4.12 MB ID: 3597030 Click image for larger version Name: board_2.jpg Views: 367 Size: 3.82 MB ID: 3597029


    When plugged in with USB-C the board does nothing. But it drains about 1.7W.

    I noticed, that one component near one of the two USB-C ports get's quite hot (>80°C).
    Since I don't have the schematics, I don't really know what component this is. I assume it is some kind of USB-C power or protection controller.
    It is labeled "THAC KHD", has 9 Pins and is BGA soldered. I desoldered it, to take some pictures.
    After desoldering the board power consumption went down to 0W.


    .Click image for larger version Name: board_4.jpg Views: 72 Size: 1.79 MB ID: 3597032Click image for larger version Name: board_5.jpg Views: 70 Size: 1.73 MB ID: 3597033​
    Click image for larger version Name: board_3.jpg Views: 69 Size: 3.52 MB ID: 3597031

    Does anybody know what this component actually is? How likely is it to break?


    Thank you very much!
    Tags: None
    • harp
      Badcaps Veteran
      • Jun 2022
      • 598
      • Planet Earth
      #2
      On pcb under bga9 ic, have you short on some pins, shorted output? Check area arround hdmi, it look like component on data lines have hole in it... maybe some lightening strike product...
      Attached Files

        Comment

        • Hauke
          Senior Member
          • Jan 2017
          • 77
          • Germany
          #3
          Good find!

          I guess your assumption is right and the board was destroyed by a lighting or something similar.

          I desoldered the bad parts at the LAN and graphic interfaces and supplied power through usb-c. The power consumption increased to ~15W and after about a second, one die on the CPU exploded.
          So this board is now for parts only..


          Anyway, thank you for your help!

            Comment

            • FriedFred
              Senior Member
              • May 2024
              • 137
              • Germany
              #4
              Too late for now, but use always a good power supply, where you can adjust the current, not only the voltage. And start with 100mA or so. Then you can find shorted parts without sacrifice the CPU.

                Comment

                • adam7
                  Member
                  • Jan 2017
                  • 16
                  • Kazakhstan
                  #5
                  Hi Hauke,

                  It is FPF2495UCX.​

                    Comment

                    • truclacicr
                      Badcaps Veteran
                      • Apr 2019
                      • 303
                      • australia
                      #6
                      https://www.mouser.com/datasheet/2/3...95-1300797.pdf

                        Comment

                        • Hauke
                          Senior Member
                          • Jan 2017
                          • 77
                          • Germany
                          #7
                          Hi adam7 and truclacicr
                          Thank you for your answers!

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • Tynan Dill
                              Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
                              by Tynan Dill
                              I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

                              Upon bringing it home and plugging it up, it showed a standby light.

                              I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

                              The screen seems to blackout and stay black, but with a flashlight I can see the display.

                              With my Playstation 4 connected via HDMI, and running a game I can hear sound.

                              Assuming...
                              ORIGINAL POWER SUPPLY BOARD
                              7 Photos
                              11-22-2024, 01:46 PM
                            • m1ch43lzm
                              HP Pavilion 15-eh Board DAG7HAMB8F0 - CPU throttling to 0.4GHz (PROCHOT_EXT) and black screen
                              by m1ch43lzm
                              Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
                              Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic...
                              05-12-2025, 08:37 PM
                            • thesame
                              DVR HIKVISION DS-7208HWI-E1/A BOARD DS-80104 REV 2.2 help identify burnt components
                              by thesame
                              Hy guys , i have a DVR board DS-80104 REV 2.2 that was powered wrong, i have some smds on the board that are blown and i can't identify them , maybe if someone has this board somehow and we can identify the smds', i have searched online and i can't find a schematic.
                              The smds are SOT-23-6 , one of them i think it has the marking ADJF since i found another one on the board with this marking , but the other one it seems that it starts with AG or it looks like. I would really apreciate if someone could help me identify those IC's .

                              ​...
                              02-27-2024, 04:31 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
                            • k-krzych
                              Identify board to board connector
                              by k-krzych
                              Hello, can you help me with an id of this board to board connector, or the the tiny silicon flat wires for replacement? It is found on GPS unit and connects main board with pushbotton small board....
                              07-08-2025, 12:32 PM
                            • Loading...
                            • No more items.
                            Working...