Toshiba P200D not power on when plugged in

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Lykos
    Member
    • Oct 2012
    • 24
    • Greece

    #1

    Toshiba P200D not power on when plugged in

    Hi everyone!
    I have a pretty strange problem with a P200D (Compal LA3831P motherboard): While it turns on just fine on battery, it does not when plugged in (even with battery connected), BUT, the thing is that the battery charges and if I plug it in while turned on, it continues working.

    To the details now, the power button does not have 3v as I expected but around 10v when on battery and 16v when on AC. After pushing the button (thus grounding this voltage) it goes near 3v for a few seconds then returns to 16v (if it turns on, it stays at 3v).

    Any ideas?
    (Schematic attached)
    Attached Files
    Last edited by Lykos; 07-23-2013, 10:26 AM.

Related Topics

Collapse

  • Tynan Dill
    Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?
    by Tynan Dill
    I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.

    Upon bringing it home and plugging it up, it showed a standby light.

    I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.

    The screen seems to blackout and stay black, but with a flashlight I can see the display.

    With my Playstation 4 connected via HDMI, and running a game I can hear sound.

    Assuming...
    11-22-2024, 01:46 PM
  • 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
  • sam_sam_sam
    Desoldering gun station modified to use a 18 volt @ 20 amp switching power supply
    by sam_sam_sam
    I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump

    One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy...
    03-31-2024, 02:12 PM
  • ju123
    Toshiba Satellite C50-A won't power down
    by ju123
    Hi guys,

    So, I've been racking my brains on this one.

    I have a Satellite C50-A which I'm repairing for a friend.

    I recently replaced the main board due to failure.

    Following this, absolutely everything works perfectly, except for the fact it won't power down.

    Initially, shutting down via Windows would shut the OS down, screen would turn off (noticed the lighter black go to what looks like the darker black powered off screen as though the backlights have powered off), however the laptop was still running internally with a spinning...
    01-07-2022, 04:40 PM
  • robgerr
    Toshiba L50-B-1Q0 (Main DABLIDMB8E0 REV:E) no power on
    by robgerr
    Good morning forum. This laptop comes into my laboratory with the defect that it won't turn on. By connecting the bench power supply I have an absorption of 1.56A (battery charging), I disconnect the battery, I have an absorption of 0.01A. I give the power on but it doesn't react. I check the mainboard and I notice the Isl88732 charger with oxide and a little burnt between pins 7-8. I remove the charger, clean the pads and solder another ISL coming from another identical board. I also find a bit of oxide in the power button connector. I clean the connector, clean the flat that goes to the power...
    12-07-2023, 06:22 AM
  • Loading...
  • No more items.
Working...