No name Tablet - no power

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  • panoss
    Member
    • Mar 2014
    • 35
    • Greece
    #1

    No name Tablet - no power

    It 's a low end tablet of 2014 that does not power up. Unknown brand (TurboX).
    ICs it has:
    BQ24297 charger IC
    MT6323 Power Management IC
    ARM MT8127A CPU
    2LA28 JW686. I don't know what this is.
    LEAHKIN KPN055DS 8Gbit Memory



    At the bottom of it 's mobo PCB is written: 'RU94V-0 E213371'
    On it 's right side: 'MN84L'
    Is there a chance to find a schematic for this (or similar)?

    I get no voltage on the Power button.
    I tried to find the route from the Power button to PM IC, but didn't make it.
    I only found that C1 & C2 (marked with yellow color) are connected.
    So I suppose that on C2 I should have some voltage (let 's say 3.3V) which should go down to 0 when the power button is pressed.

    Any help is welcome.
    Attached Files
    Last edited by panoss; 02-13-2020, 06:03 AM.
    Tags: None
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