Samsung LE27T51B inverter problem

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Diez10
    New Member
    • Dec 2015
    • 1
    • Portugal

    #21
    Re: Samsung LE27T51B inverter problem

    Hi,

    I have a similar problem with LE27T51B.

    When I turn on the LCD, the backlight turns on and off below.
    But turn off the contact (CN11) of the PCB Invter , the backlight is turned over longer.
    What can be?
    And that contact CN11 is this ?

    Comment

    • chrle
      Senior Member
      • Sep 2013
      • 158
      • slovakia

      #22
      Re: Samsung LE27T51B inverter problem

      I have problem with this tv ,tv dont turn on,changed all bulged caps ,voltage is ok but screen not turning on.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #23
        Re: Samsung LE27T51B inverter problem

        Originally posted by chrle
        I have problem with this tv ,tv dont turn on,changed all bulged caps ,voltage is ok but screen not turning on.
        Exact same model and the exact same boards are used in your TV?
        How about providing good clear pictures of your boards and the Voltage readings of the power supply and the command Voltages?
        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

        • chrle
          Senior Member
          • Sep 2013
          • 158
          • slovakia

          #24
          Re: Samsung LE27T51B inverter problem

          I have DARFON V070 $H.V0708.001/E5 inverter board

          secondary resistance on tranformers are 950ohm ,but one in the midle of invertor board have 891ohm

          primary resistanceare 1,7ohm ,but one have 2.2

          is this good or?

          I cant find fuses on this board.

          Comment

          Related Topics

          Collapse

          • Document Archive
            Samsung Galaxy Book 2 Notebook Specification for Upgrade or Repair
            by Document Archive
            This specification for the Samsung Galaxy Book 2 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Galaxy Book 2 boardview and Galaxy Book 2 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
            09-07-2024, 05:50 AM
          • howardc64
            Samsung UN55JU650DF network/streaming problem
            by howardc64
            Fixed a 9 year old UN55JU650 by replacing backlight. Original backlight LED was still working after 27k! hours but terrible picture of course. Few LEDs were out, 5-6 lens fell off (bright white spots) and another few popped off with slightest force. Surviving LEDs were all slightly blue so picture has a blue tint.

            This TV runs older Tizen OS (updated to latest version, see pic) and have problems with network (wifi or ethernet) connection. The Tizen UI frequently switch to coax input source while changing content sources. . If no good signal (coax not connected, no prior antenna/cable...
            07-09-2025, 12:44 PM
          • Document Archive
            Samsung Galaxy Book Ion NP930XCJ Notebook Specification for Upgrade or Repair
            by Document Archive
            This specification for the Samsung Galaxy Book Ion NP930XCJ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the NP930XCJ boardview and NP930XCJ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
            09-06-2024, 11:40 PM
          • Document Archive
            Samsung Galaxy Book Ion NP950XCJ Notebook Specification for Upgrade or Repair
            by Document Archive
            This specification for the Samsung Galaxy Book Ion NP950XCJ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the NP950XCJ boardview and NP950XCJ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
            09-06-2024, 11:40 PM
          • Document Archive
            Samsung Galaxy Book Ion NP950XCJ Notebook Specification for Upgrade or Repair
            by Document Archive
            This specification for the Samsung Galaxy Book Ion NP950XCJ Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the NP950XCJ boardview and NP950XCJ schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download...
            09-06-2024, 08:40 PM
          • Loading...
          • No more items.
          Working...