Knockoff/Counterfeit parts

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Rainy
    Member
    • Sep 2018
    • 14
    • United States

    #1

    Knockoff/Counterfeit parts

    Has anyone seen these?

    So far, I've had like 3 counterfeit parts.

    One was a TCON board in a guy's TV. I did everything to eliminate the short as far as to drilling out part of the board, and there was some sort of short inbetween the two sides of the board.

    Now I'm sitting on two power supplies that seem to make voltage out of thin air.

    Not sure what to do. I prefer not to get these bullshit counterfeit Chinese parts as it causes me a ton of trouble between my repairs and sellers.

    I have a hunch somewhere they are being swapped in the USPS system. I once almost took some job with some chinese people to measure the shipping speed in the areas by sending empty boxes.
    Last edited by Rainy; 10-10-2018, 04:10 AM.
  • Rainy
    Member
    • Sep 2018
    • 14
    • United States

    #2
    Re: Knockoff/Counterfeit parts



    This is the magical "18v" 21v circuit.

    Comment

    Related Topics

    Collapse

    • Mark D
      Samsung UN65JU67ODFXZA Version TD01 Schematic and Parts List
      by Mark D
      The TV is a Samsung UN65JU67ODFXZA Version TD01. I replaced the power source board and the TV is now working, but I decided to try and troubleshoot the old board to fix at the component level. Trying to get a schematic and a parts list has proven to be an issue. Trying on my own, I can't tell you how many times my Norton security has flagged sites as "malicious". I ordered a service manual from ServiceManuals.net, paid $16.99 and got 66 pages of everything BUT schematics and component parts list! Can anyone steer me in the right direction? Some of the surface mounted component parts...
      10-29-2024, 03:15 PM
    • 2elw
      SVOD4 PCB pictures + parts
      by 2elw
      Hey, I find it very absurd that the SVOD4 costs so much and has zero documentation. I had no other choice than to buy it to unlock ECs, if there was any documentation or firmware avalible I could've made it or something simmilar. Anyways here are some of the most important parts:

      STM32H723VGT6 MCU - It's a microcontroller by STMicroelectronics and its the whole brain of the SVOD4. It has flash memory for the firmware which can be updated by the SVOD4 program. Its also powered by the AMS117 which converts 5v into 3.3V. 7€ on AliExpress.

      GW1N-UV9UG169C6/I5 FPGA - Its a...
      07-04-2025, 12:23 PM
    • valente222
      help SG2701B01-7 panel chinese, would this integrated circuit be equivalent? Chinese IC CS601C regulator.
      by valente222
      Hi, I'm repairing this Chinese SG2701B01-7 panel. There isn't much information about it. The original part for the panel is a CSOT CS601C regulator. I can't find anything commercial on Aliexpress; there's only the CS601 without the final 'C'. They claim it's a variant. But will it be compatible? Well, my diagnosis on this screen is a video problem; the image is practically black, although there is HDMI communication. The LED light is on (backlight), but there is no VGL, no 3.3V, and no VSS. It seems that this IC is the one controlling these voltages. The monitor worked correctly for a moment and...
      05-12-2025, 03:42 PM
    • SurrealMustard
      What parts can be salvaged from a plasma with a damaged display panel?
      by SurrealMustard
      I recently found myself the proud owner of a later-model Samsung plasma (the PN59D7000 for those keeping score at home) whose panel was, unfortunately, damaged in transport. I'm now preparing to part it out, but am curious as to whether or not any damage would have come to any of the components by attempting to power it up with the panel being broken. I read in one Avsforum thread (for whatever that's worth 😂) that the "scan driver boards" (by which I assume he means buffer boards) could be impacted by doing so. Is that actually the case? If so, since I don't intend on selling bad...
      03-09-2025, 08:29 PM
    • DynaxSC
      Asus Rog Strix B360-I Gaming - Parts Identification
      by DynaxSC
      Hi,

      I have an Asus Rog Strix B360-I Gaming with missing parts. I know there is a resistor missing for sure, but nearby it seems there might have been also a transistor or mosfet. Below the picture of the area on the board with the missing parts. The interesting area is inside the rectangle.




      I'd appeciate if somebody could make a detailled picture of this area from a working board and post it here. Getting the parts values would also be helpful. The revision of the board is 1.02 .

      Thanks in advance...
      08-23-2023, 07:56 AM
    • Loading...
    • No more items.
    Working...