ln32a330j1d wont turn on

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  • PantherDave
    Microsoft Surface Pro (5th gen) model 1796 - no power
    by PantherDave
    Hi all!

    I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅

    I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
    https://www.badcaps.net/forum/troubl...-hardware-devi...
    05-29-2024, 02:01 PM
  • eryjus
    Heathkit IO-4205 Power Supply Caps
    by eryjus
    Hello,

    First, I am a complete noob with high voltage stuff. I'm learning, but I need help by someone looking over my shoulder.

    I recently came into posession of a Heathkit IO-4205 5MHz Dual Trace Oscilloscope. The documentation is copyright 1978. I'm told it works.

    I opened it up to check the caps before I applied power, and found the following black caps and wanted to know what they were. They are on the power supply board. I was able to read the name and model and came up with, "Nytronics 162J-1, 0.1uF, 20% tolerance, 2000VDC."
    ...
    05-10-2023, 11:21 AM
  • bcstedt
    LG 42LB5D, 42LB5DF-UL, 2008-01, Power On Issue, Replaced PS Caps
    by bcstedt
    LG 42LB5D (42LB5DF-UL) from 2008-01, unit is in good shape and no obvious heat damage or cracked solder on the boards.

    Problem:
    On first power-up the power LED flashes green about 18x and then stays solid. No backlight or image is present. Click power button, wait 10s for a click and the LED turns red. Wait 1-2s and hit power again and maybe it'll power up fully after 6 green flashes. If it doesn't light up on the sixth flash then the cycle repeats.

    It seems that if the mainboard power is left on for a few minutes (solid green power, no backlight, no image)...
    01-18-2024, 01:03 PM
  • masoksian
    Dell latitude e7470 not turn on .power buton on off and Run Power problem
    by masoksian
    Hi everyone,

    I am dealing with the problem of turning on and off my Dell e7470 notebook.

    The battery charge light is solid white, I press the button, the power indicator and the light on the button are solid for 1-2 seconds and immediately turn off.

    The system does not turn on, there is no post.

    I removed the RAMs and changed them, changed the battery, RTC battery, AC adapter, removed them and waited, tried again, it does not turn on.
    The problem continues in the same way.
    I tried to turn on the Fn key, nothing came to the screen....
    02-15-2025, 12:08 PM
  • captain150
    Help with switching power supply caps
    by captain150
    I'm trying to repair two old VCRs, they both have bad caps. One has leaky ones, the other would barely run until I subbed in some caps from another power supply I had laying around (though they are the wrong values). This vcr works for an hour or two, but then the power supply starts whining and the picture gets lines in it. I didn't replace all the secondary caps, so another voltage might still be problematic, or the values I used are too far off.
    I've been on mouser and digikey but the options are a bit overwhelming. I just need some new ones that will work. They don't need to be top quality,...
    03-16-2025, 07:34 PM
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