Another Dell 2005 FPW

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  • ben7
    Capaholic
    • Jan 2011
    • 4059
    • USA

    #21
    Re: Another Dell 2005 FPW

    I agree, check for bad wiring or signs of arcing, if the monitor was left on while you were away, it could possibly cause a fire!
    Muh-soggy-knee

    Comment

    • Nightwolf
      Senior Member
      • Mar 2015
      • 52
      • USA

      #22
      Re: Another Dell 2005 FPW

      This is the invertor that was in this monitor.





      As you can see the second transformer from the right is discolored.
      Does anyone know what the resistance measurements are on these?
      This board is what was causing the monitor and front panel LEDs to blink.

      Comment

      • budm
        Badcaps Legend
        • Feb 2010
        • 40746
        • USA

        #23
        Re: Another Dell 2005 FPW

        Try this thread:
        https://www.badcaps.net/forum/showthread.php?t=19541
        Since you have two boards, you can try swapping the transformer.
        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

        • Nightwolf
          Senior Member
          • Mar 2015
          • 52
          • USA

          #24
          Re: Another Dell 2005 FPW

          The other board, which is in this monitor right now, is a 2 x 4 pin. So now sure if the resistance reading would be the same or not.

          Comment

          • Nightwolf
            Senior Member
            • Mar 2015
            • 52
            • USA

            #25
            Re: Another Dell 2005 FPW

            OK back to this one. Trying to figure out how to get to the lamps. No signs of arcing on the outside that I can see. What do I take apart noe to get to the lamps>







            Comment

            • Nightwolf
              Senior Member
              • Mar 2015
              • 52
              • USA

              #26
              Re: Another Dell 2005 FPW

              Well, couldn't see any signs of arcing after taking it apart as far as I could figure out, so put it all back together and got the other panel and plugged it in and it does the same thing! Must be something on the inverter board, so looking at it again real close.

              Comment

              • Nightwolf
                Senior Member
                • Mar 2015
                • 52
                • USA

                #27
                Re: Another Dell 2005 FPW

                Well, thought I found the problem.



                But still doing it and it does it on both panels!
                Any suggestions as where to go next?
                This is pin 1 of T101. It flickers from 1 to 5 min, depending how long it has be off, then it looks great.
                I see no arcing anywhere around the tubes or wiring going to them. The fact that it does it on both panels
                suggests it is on the inverter board, but cant see anything.
                Last edited by Nightwolf; 05-17-2015, 09:48 PM.

                Comment

                • TechGeek
                  Computer Geek
                  • Jan 2015
                  • 2254
                  • USA

                  #28
                  Re: Another Dell 2005 FPW

                  Hmmmm...
                  Don't buy those $10 PSU "specials". They fail, and they have taken whole computers with them.

                  My computer doubles as a space heater.

                  Permanently Retired Systems:
                  RIP Advantech UNO-3072LA (2008-2021) - Decommissioned and taken out of service permanently due to lack of software support for it. Not very likely to ever be recommissioned again.
                  Asus Q550LF (Old main laptop, 2014-2022) - Decommissioned and stripped due to a myriad of problems, the main battery bloating being the final nail in the coffin.


                  Kooky and Kool Systems
                  - 1996 Power Macintosh 7200/120 + PC Compatibility Card - Under Restoration
                  - 1993 Gateway 2000 80486DX/50 - Fully Operational/WIP
                  - 2004 Athlon 64 Retro Gaming System - Indefinitely Parked
                  - Main Workstation - Fully operational!

                  sigpic

                  Comment

                  • budm
                    Badcaps Legend
                    • Feb 2010
                    • 40746
                    • USA

                    #29
                    Re: Another Dell 2005 FPW

                    Just clean off the flux and re-solder.
                    But you also have two power supply/inveter boards, so both of them doing the same thing?

                    This original one was not flickering?
                    https://www.badcaps.net/forum/showpo...90&postcount=1
                    And how about the suspected bad inverter transformer? You have TWO units that you can swap parts.
                    BTW, so you did not remove the lamps to get to see the condition of the lamp and the connection at the end of the lamp?
                    Last edited by budm; 05-18-2015, 09:38 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

                    • Nightwolf
                      Senior Member
                      • Mar 2015
                      • 52
                      • USA

                      #30
                      Re: Another Dell 2005 FPW

                      Budm, any suggestions on where to go now?

                      Comment

                      • budm
                        Badcaps Legend
                        • Feb 2010
                        • 40746
                        • USA

                        #31
                        Re: Another Dell 2005 FPW

                        Well you have two sets of everything. Both power supply boards are doing the same thing?
                        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

                        • Nightwolf
                          Senior Member
                          • Mar 2015
                          • 52
                          • USA

                          #32
                          Re: Another Dell 2005 FPW

                          The other board is the one that flashes the power and input button on and off and both panels do the same thing. cleaned the flux off and re-soldered that connection. turned it on last night in the dark and could see nothing arcing anywhere. Maybe a cap breaking down internal, dont know.

                          Comment

                          • Nightwolf
                            Senior Member
                            • Mar 2015
                            • 52
                            • USA

                            #33
                            Re: Another Dell 2005 FPW

                            Going to take the board to work and check the caps to see if i cab determine if they are breaking down.

                            Comment

                            • Nightwolf
                              Senior Member
                              • Mar 2015
                              • 52
                              • USA

                              #34
                              Re: Another Dell 2005 FPW

                              OK, cleaned the flux un-soldered and re-soldered that connection, look good now. Measured the caps, I have set of 3 in parallel and a set of 2 in parallel. All of them are 820uf 25 v. The first set reads 860uf in circuit, out of circuit they each read 531uf. A total of 1590uf, SB 2460uf.
                              The second set reads 1410 in circuit and 700 out of circuit. The big cap reads 131uf in circuit. Cap value is 150uf. Did not take that one out. This board is made by Samsung Model IP-82125A. Does anyone have the board print of this?

                              Comment

                              • budm
                                Badcaps Legend
                                • Feb 2010
                                • 40746
                                • USA

                                #35
                                Re: Another Dell 2005 FPW

                                http://www.ebay.com/itm/DELL-2005FPW...-/160875275980
                                For the price of the repair this is cheap.
                                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

                                • Nightwolf
                                  Senior Member
                                  • Mar 2015
                                  • 52
                                  • USA

                                  #36
                                  Re: Another Dell 2005 FPW

                                  Originally posted by budm
                                  http://www.ebay.com/itm/DELL-2005FPW...-/160875275980
                                  For the price of the repair this is cheap.
                                  I seen that one but still don't know who makes the caps for the replacement. The 14 caps on the other board I have is only 10.53 from Digi-key and those are Panasonic FM. A cheap but good fix!

                                  Comment

                                  • Nightwolf
                                    Senior Member
                                    • Mar 2015
                                    • 52
                                    • USA

                                    #37
                                    Re: Another Dell 2005 FPW

                                    Did a search on the board number, and it looks like it was made for Dell only.

                                    Comment

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