Dell laptop E6440 val91 la-9934p turns off

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  • manol278
    Member
    • Nov 2017
    • 41
    • greece
    #1

    Dell laptop E6440 val91 la-9934p turns off

    Hi. I have problem with dell laptop E6440 val91 la-9934p rev.1.
    I turn on the laptop and it turns off instantly. After 5-6 attempts it turns on normally. I saw that it was burnt PU800, CD3301B Power Controller Chip.
    If you see in the photo someone tried to do bypass and remove PR831, PR832, PC820, PR838.
    I will replace CD3301B. I have the schematic but i dont know what are the characteristics of other componets to replace...

    Click image for larger version Name: 1.jpg Views: 0 Size: 219.4 KB ID: 3204933 Click image for larger version Name: 2.jpg Views: 0 Size: 215.1 KB ID: 3204935

    [Mod. Edit]
    Schematic -> https://www.badcaps.net/forum/troubl...72#post1455772
    Boardview -> https://www.badcaps.net/forum/troubl...67#post1563367

    Reminder: rules and organization of this section
    https://www.badcaps.net/forum/showthread.php?t=117483​
    Last edited by Vesko356; 01-26-2024, 01:26 PM. Reason: Attached scematic removed and replaced with link
    Tags: None
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