Dell UltraSharp 2405FPW

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • hoadle
    Senior Member
    • Jul 2010
    • 174
    #1

    Dell UltraSharp 2405FPW

    I had Dell UltraSharp 2405FPW most time can turn on but some time is turn on about 2 second & shut off (i mean black sreen but power LED still on & use flash light can see the window screen)
    open but didn't see any bad caps & resoldering all but still get same problem
    Can't check CCFL light because didn't have CCFL testing
    Thanks
    Attached Files
    Tags: None
    Previous template Next

    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
    • ttmi100x
      HANNSG Hi221 -- 2 secs to black feat. CCFL flicker & "burn" marks on power board
      by ttmi100x
      Greetings everyone,


      I have a HANNSG Hi221 monitor that exhibits two seconds to black issues (backlight goes off, display is still on as confirmed by shining a flashlight on it) with some additional oddities...


      The monitor failed on me with a standard "2 seconds to black" some time ago prompting me to initially replace most of the electrolytic capacitors (some of them were bulging/leaking).
      Things kinda sorta worked for a night, then the problem returned along with some flickering and "buzzing" noises.

      Upon closer inspection...
      "Burnt" resistor
      6 Photos
      07-31-2024, 06:36 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
    • DanPoka
      Guide me through repairing a Dell p2210f LCD ccfl backlight monitor
      by DanPoka
      I bought this p2210f dell monitor to fix. Schematic is the same as p2210.
      Behaviour is that monitors comes on but then backlight switches off almost instantly. If I look with flashlight I can still find the "No signal message". So definitely a backlight issue. Trying to advance the issue I proved that the protection circuit is switching off the backlight by shorting out C3 and resistor to disable the INL chip then re enable by removing the short.
      This is where it gets interesting. When I disassembled the monitor to solder leads on c3 capacitor I noticed the backlight flickered...
      02-15-2025, 05:05 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...