Spectroniq PLTV-3250

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    Lenovo Legion 5 high fan spin turns off after 34 seconds
    by twonk9098
    Hi all,

    I have a Lenovo Legion 5 with a Ryzen 7 series CPU and RTX 3070 GPU. My issue is that it turns on and all seems fine except after a few seconds the fans spin up high and the laptop turns off after 34 seconds.
    I can get into bios and can even boot and login to Windows however after 34 seconds no matter if Im at the bios screen or booted into Windows it will just turn off.

    I have managed to run HWmonitor and the temperatures of the CPU and GPU are fine, I can also touch the heatsync which is warm but not hot.

    I have tried a few new bios but exactly...
    07-14-2024, 11:19 AM
  • liquidzorch
    Lenovo 15iml05 Power led lights for 12 seconds then off 12 seconds
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    Hello. I bought a faulty Lenovo ideapad 3, but it turns out the 3Valw buck converter burnt a hole through the board. I was able to clean it up, and remove all the shorts. I now can power the 3.3v rails from a bench power suppy while connecting the laptop to its psu, and I get the additional 5valw, 1.8v, and 1.05v, form what I can tell in the schematics, those are the only 4 voltages I should see before turning on, and they are present. When I hit the power button, the power indicator on the left side turns on (not the one on the power button), stays on for about 12 seconds, then turns off for...
    10-18-2024, 05:19 PM
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    Sony KDL-46BX450 Inverter Troubleshoot Logic
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    I have well maintained Sony KDL-46BX450. It went black one day. After turn-on, I get solid green light and Sony logo in screen center for about 1-2 seconds, then black. No blinking LEDs, no hissing. Flashlight test shows screen characters dimly viewable,...
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  • PowellSkier
    Harman/Kardon AVR 645 returning to stand-by after a few seconds.
    by PowellSkier
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  • AlexVG
    Macbook A1466 820-00165 resets every 10 seconds
    by AlexVG
    Hi,
    It have had a problem with U7100 and short circuit in Q7130.
    I replaced them.


    It starts now and waiting 20 seconds and then starts to reset PM_SLP_S4_L every 10 seconds.
    Almost all voltages rising
    except U3090 and U3210 (LED) - not receives enable signal.

    U4500 is trying to rise - receives enable only 2-3 seconds

    Here is my measuring of important signals.

    What else could be the problem?



    I need to help.
    Thank you an advance....
    11-09-2023, 07:19 AM
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