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  • Need Asus UX5401EA Boardview

    Does anyone have a schematic or boardview of the Asus UX5401EA R2.2?...
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  • Lenovos new Ideapad 3 5G ARM Snapgragon. dont see hardware when installing W11

    I have this Lenovo Ideapad 3 5G ARM Snapgragon 14Q8X05. that dont see hardware when installing W11. it literally says " install driver to see hardware.
    disc turns bad on him so i dont have recovery

    i cannot find anything about this fault. on support of lenovo same nothing. How to deal with this new lenovo crap?
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  • [HELP] SAMSUNG NP270E4E-K01AR

    1) Error trying to enter the BIOS
    --> [F2] won't let me enter the BIOS. To enter the BIOS, I had to create a shortcut and then type C:\Windows\System32\shutdown.exe /r /fw /t 1 in the destination. This forced it to restart and enter the BIOS.
    Once inside, I went to the BOOT menu, but, surprise, it wasn't there. I got the following message:

    BOOT PRIORITY ORDER (img-05)
    1- Windows Boot Manager
    2- SATA HDD
    3- NETWORK
    4- Debian

    2) Error trying to access the BOOT MENU
    --> I restarted the notebook and pressed [F10] but the BOOT...
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  • Dell Latitude 5350 Ultra 7 Motherboard

    Hi

    I have a Dell Latitude 5350 Ultra 7 Motherboard I am trying to repair that has a blown chip.

    The chip is marked as eHOLH similar to the one I have pictured.

    Any ideas what it does and what the pin outs are as 3 tracks have gone and need to find out what / where they went / did etc.

    Dell PN of the motherboard is 08DCGW.




    Below is the area I am trying to repair:



    Does anyone have a picture of this motherboard in this area they could take and upload?

    Cheers...
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  • MacBook Pro M1 13 820-02020 stuck at 5V 0.1A

    Board had some light liquid damage, nothing serious, just one bad looking cap that I removed (from PPBUS_G3H to ground), near speaker amps.
    There was no corrosion as such, just few tiny spots, really minor.

    The board is stuck at 5V, it draws 0.1A all the time. Only at poweron the amperage surges up to about 0.15-0.18A, then it settles at 0.1A.
    I put it in DFU and it didn't do anything, wasn't detected on other machine.

    Voltages all seem OK near the CD3217 chips, all LDOs are present, also no liquid damage was nowhere around those.
    But measuring other...
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  • QN75QN85BAFXZA no backlight

    2+ year old TV with many (720? 65" version has 720) mini LED dimming zones. TV boots, has sound, panel picture can be seen with flashlight. No backlight. No TV model sticker on rear panel (Maybe Samsung service removed it, read below). Found the model # through the PSU and zoned LED driver board numbers.

    PSU has a click near LED output circuit at 1 second interval, sounded like the 4x barrier rectifier area. Protective pastic liner under PSU shows heat signature on the Schottky Barrier Rectifier in this circuit. Found a shorted diode (2 diode per rectifier, failed rectifier labled...
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    Last edited by howardc64; Yesterday, 05:14 PM.

  • Sony M851 MBX-217 no POST and restart loop

    Before proceeding with a component level repair, the usual troubleshooting process was followed:

    1. Disassemble and unplug everything except the power connector.
    2. Replace RAM.
    3. Replace CPU.
    4. Rewrite BIOS.

    Unfortunately the board was still stuck with a 0.75A power consumption at 19V.

    After reflowing both GPU and north bridge in one shot (it can't hurt) there was an instant improvement with a constant 1.75A power consumption, but I immediately noticed smoke and the typical smell coming from the GPU area.
    I thought to myself "Well,...
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  • (Move please wrong category!) HP Elite x2 G4 (EMP20 LA-G931P) schematic/boardview

    Hey,
    Does anyone have a schematic or boardview for the HP Elite x2 G4? Motherboard shows "EMP20 LA-G931P". I've gotten 200 of these from my employer to unlock and its been hell since the EC rom is on the back of the board, im trying to find test points or any way to communicate to the EC or its rom without having to dissasemble the whole thing just to get to the back.
    Thanks.
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