Announcement

Collapse
No announcement yet.

Gateway FPD 2185w No Picture Con. Blue Pwer Lt

Collapse
X
Collapse
 
  • Page of 2
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
    #21
    Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

    I wonder if you could satisfy my curiosity.
    When you're testing the voltage regulators, I am guessing you have the ribbon, and CCFL connectors not hooked up to the LCD. With those unplugged can you turn the monitor on and off with the front panel switch?
    Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!

    Comment

      #22
      Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

      Originally posted by DivanteBlack View Post
      and heres the pics you asked for.
      The pics never made it. Try again.
      --- begin sig file ---

      If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

      We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

      Please do not post inline and offsite as they slow down the loading of pages.

      --- end sig file ---

      Comment

        #23
        Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

        To answer your question, no I cannot turn the blue led off and on, via power switch( the led is embedded in power switch) whether lcd ribbon and cffl connectors are connected or not.

        Comment

          #24
          Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

          Still get no visual on screen, tried replacing caps on video board, 3 470uf 16 with some used saxmon 470 25v ( not sure if the saxmons work) and received the same results.

          Comment

            #25
            Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

            Originally posted by DivanteBlack View Post
            ( not sure if the saxmons work)
            Depending on which Fluke 77 model you have, you can check the capacitance of cap if you are unsure.
            --- begin sig file ---

            If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

            We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

            Please do not post inline and offsite as they slow down the loading of pages.

            --- end sig file ---

            Comment

              #26
              Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

              OK I measured the output voltages and the volt regulators on the main and video board, they seem to be within normal limits ( 12v puts out 12.21v and 5vs put out 5.08v on main and regs show rated regulation, so why is this moniker still not even showing a logo screen, or turning off and on. Should I check diodes and transistors and if so how?

              Comment

                #27
                Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

                Hookup a working computer with your favourite wallpaper to the lcd. Shine a flashlight on the lcd. Can you see the wallpaper?

                If no, that implies a problem with the logic board. If yes, then you have a shorted mosfet or transistor in the inverter section.
                --- begin sig file ---

                If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                Please do not post inline and offsite as they slow down the loading of pages.

                --- end sig file ---

                Comment

                  #28
                  Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

                  No flashlight image, im going to start checking everything component by compnent on this board till I find whats causing this problem

                  Comment

                    #29
                    Re: Gateway FPD 2185w No Picture Con. Blue Pwer Lt

                    Originally posted by DivanteBlack View Post
                    No flashlight image, im going to start checking everything component by compnent on this board till I find whats causing this problem
                    This might raise a few eyebrows, or get a chuckle or two.
                    IT should be easy to verify.
                    Let me go through some of my thoughts.
                    I am using a Gateway HD monitor, If I turn this monitor off and remove the power cord, And then reinstall the power cord the power LED comes on but it's more of a violet color. When I push the front power switch it lights about 5 LEDs on the front panel switch that are dark blue.
                    I wonder if when all those LEDs light, the monitor is going through some type of a self test.
                    I look at the voltages you're seeing on the voltage regulators, if I understand things correctly the 1.8volt regulators are fed from the outputs of the 3.3 volt regulators. The 3.3 volt regulators are within the 1% tolerance on the outputs, but on the inputs of the 1.8 volt regulators you are just above the lower tolerance.
                    I wonder if there would be any benefit to check the voltage on the input pins of the 1.8 volt regulators as the power cord is plugged into the monitor, and when the front panel power touch switch is pushed. I am wondering if the voltage is going low as a load is trying to apply.
                    Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!

                    Comment

                    Previous 1 2 template Next
                    Working...
                    X