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Gateway FPB1730--please help with an overview

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    Gateway FPB1730--please help with an overview

    I have actually been able to fix some monitors and TV's with the generous help of people on this forum. I have a problem with another monitor, but I am more interested in increasing my tiny base of understanding. Referring to the picture, is this how the process works to turn on the monitor?
    On/off switch on board 1 sends an 'on' signal thru connection A
    Logic (or main) board 2 receives the 'on' signal thru connection B
    Logic (or main) board 2 sends the 'on' signal to power board 3 thru connection C
    Power board 3 receives the 'on' signal thru connection D
    Power board then sends power thru connection D back to logic (or main) board 2
    Power board turns on power to backlights thru connections F
    Logic (or main) board then sends processed signal thru connection E to the LCD panel
    Is this somewhat correct? Feel free to laugh or to correct my meager understanding!
    Attached Files

    #2
    Re: Gateway FPB1730--please help with an overview

    The power supply board is always running (putting out voltages the minute you apply the AC power to the board), the inverter board and the T-CON board are in off mode, the main board is always running. When you hit the power button, the main board micro controller sends out the BL_ON and the Dimming signals to turn on the inverter. The main micro controller also send the on signal to turn on the MOSFET on the main board to supply the B+ to the T-CON board, If there is not video signal from the PC, the micro controller will put the unit into standby mode after 3~5 seconds and will get out of standby mode when video signal is detected.
    Last edited by budm; 02-06-2014, 09:58 AM.
    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


      #3
      Re: Gateway FPB1730--please help with an overview

      Whew, Bud....that was a mouth full! I am adding a picture of the last connection which I am identifying (correctly or incorrectly) as the Tcon board. That is where the cable from connection E goes. In this situation, is the inverter board combined with the power board (#3)?
      Attached Files

      Comment


        #4
        Re: Gateway FPB1730--please help with an overview

        That the integrated T-CON with the LCD Glass panel assembly.
        You have power supply/inverter combo board.
        https://www.badcaps.net/forum/showth...956#post305956
        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


          #5
          Re: Gateway FPB1730--please help with an overview

          "(correctly or incorrectly) as the Tcon board."
          You are correct but why don't you expose your problem?

          Comment

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