[Help] Dell 2405FPW whitescreen

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • allenpan
    New Member
    • Feb 2014
    • 3
    • Canada

    #1

    [Help] Dell 2405FPW whitescreen

    [Help] Dell 2405FPW whitescreen

    my Dell 2405FPW only display whitescreen, and i check the and replaced all the 470uf 35V caps (6), but now still the same whitescreen, what should i look or prob for?
  • budm
    Badcaps Legend
    • Feb 2010
    • 40746
    • USA

    #2
    Re: [Help] Dell 2405FPW whitescreen

    Check the fuse on the T-CON board to see if it has either 5VDC or 12VDC at BOTH ends of the fuse with ref. to the chassis ground.
    Never stop learning
    Basic LCD TV and Monitor troubleshooting guides.
    http://www.badcaps.net/forum/showthr...956#post305956

    Voltage Regulator (LDO) testing:
    http://www.badcaps.net/forum/showthr...999#post300999

    Inverter testing using old CFL:
    http://www.badcaps.net/forum/showthr...er+testing+cfl

    Tear down pictures : Hit the ">" Show Albums and stories" on the left side
    http://s807.photobucket.com/user/budm/library/

    TV Factory reset codes listing:
    http://www.badcaps.net/forum/showthread.php?t=24809

    Comment

    • ulyanoff
      Member
      • Jun 2016
      • 12
      • Ukraine

      #3
      Re: [Help] Dell 2405FPW whitescreen

      Hi , Some panels have a test mode, for this you need to submit 5V to T-con with disconnected cable LVDS. (in offline mode). Good Luck!

      Comment

      Related Topics

      Collapse

      • Bowline
        Dell E6400 PT434 type Battery Charging Stuck at 1%. Battery Pinouts?
        by Bowline
        My question pertains to understanding the control circuity inside a Dell PT434 type battery used in Dell E6400, E6410 and other Dell notebooks?

        Does anyone have a circuit diagram for the inside of a Dell PT434 battery and/or a description of how the control lines work to control this battery?

        My reason for asking is I have a battery which I cannot get to charge beyond 1% in a Dell E6410 or E6400.
        The LED bar graph charge indicator on the battery shows one LED lighted when the info button is pressed.
        I have tried multiple different Dell power adapters. My Dell...
        06-11-2025, 10:13 AM
      • Akhlz001
        Dell Pro 13 Plus PB13250 Bios Unlock
        by Akhlz001
        Hi,

        Could someone help trying to unlock this BIOS, seems that Dell have changed the layout of new Dell Pro 8FC8 bioses from checking HXD - 4000 bits do not need changing, only 2000. However after FF the section starting from '01000' upto 2000 bits and then soldering the chip back it seems that the microchip on the motherboard is recovering the bios back to original settings after first boot. Has anyone found a way to crack this extra layer of security Dell have implemented? Seems both HP and Dell have upped bios security to match Lenovo by implementing extra measures on a separate...
        09-20-2025, 07:15 PM
      • master3112
        Dell Inspiron 5590 Board 18778-1 no charging, charging not possible
        by master3112
        I would like to share my experience about charging issues with Dell power supplies with the tech community. I am working on a Dell Inspiron 5590, Mainboard 18778-1 with charging problems. The device can be switched on and works so far, only the message appears at startup:

        Alert! The AC power adapter wattage and Type cannot be determined. The battery may not change. The System will adjust the performace to match the power available.

        The power supply unit is not recognized in the Bios and the charging process is set to "idle". I use original Dell battery, type...
        07-29-2025, 01:55 PM
      • SMDFlea
        Dell Thunderbolt Firmware
        by SMDFlea
        Dell thunderbolt firmware, extracted from dell firmware update exe. Padded to 1MB.

        Some models have a choice of 2 different firmwares, it depends on the dell SKU.
        The SKU is in brackets (****)

        EDIT: NVM65...
        01-26-2025, 06:22 AM
      • F R 2568
        Dell Latitude 5420 does not start (no post) need help to find the reason why
        by F R 2568
        Hello all,

        this is my first post, so if I make mistakes please do not hesitate to point them out, thank you in advance.

        I got a Dell Latitude 5420 (Service Tag: 7RFM6D3, Motherboard: GDF40 LA-491P Rev.: 2.0 (A01)) which does not start and I want to repair it. These are the symptoms:

        If the laptop is only connected to the AC adapter (battery removed):

        When I press the power button, the keyboard backlight and the display backlight are turning on. Caps key light is lightning, but key does not respond to pressing it.

        The power/battery...
        01-08-2025, 05:45 AM
      • Loading...
      • No more items.
      Working...