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    #1

    Acer V223w

    I have an Acer V223w that just started acting strangely. It works fine for a while, then just shuts off. No display, no power light, but the PC still detects it as connected. If I disconnect the power cable for 5 minutes or so, then plug it back in, it will work just fine for a while, then it shuts off again. I was really hoping to find an obviously bad cap when I opened it up, but no such luck. Attached are pictures of the boards.
    Attached Files
    Tags: None
    #2
    Re: Acer V223w

    Perhaps it's overheating? It may have an automatic thermal shutoff when the temperature exceeds a certain point. Have you noticed it shut down any sooner on warm days, or later on cool ones? Does the monitor feel warm or hot to the touch before shutting down?

    EDIT: I just did a little research and learned that the issue is often caused by an unstable DC input, which is caused by problematic DC filter caps. You may not be able to see the problem, but it is most likely the reason for the issue. You may be better off to just replace the filter caps, even though you don't see the problem.
    Last edited by DerStrom8; 12-28-2012, 03:40 PM.

    Comment

      #3
      Re: Acer V223w

      A cap doesn't have to be bulged or swollen to be bad. You didn't say how long the monitor stays on. If it's longer than a few minutes, try heating the board with a hair dryer to accelerate the shutdown process. This will help isolate the area that may be causing the problem.

      Comment

        #4
        Re: Acer V223w

        Sorry I didn't give enough detail. The monitor was purchased as a refurb - as-is, no warranty. It worked fine for the first few months. It's no warmer than the other monitor that it is sitting next to. When it is working, it stays on for anywhere from 5 minutes to 30 minutes. The longer the power is disconnected, the longer it will work when it is plugged back in.
        Any suggestions as to which specific caps to replace? It may be a few days before I can try the hair dryer trick on it.

        Comment

          #5
          Re: Acer V223w

          You might get away with the 4 elite caps- we would generally recommend replacing all
          except the Big cap BUT what make are caps with 1041 and 1044 on - the ends look like panasonic?? and if replaced when refurbished should be good.
          The idea of the hairdryer is partly to locate failing caps.
          Please upload pictures using attachment function when ask for help on the repair
          http://www.badcaps.net/forum/showthread.php?t=39740

          Comment

            #6
            Re: Acer V223w

            The 1041 and 1044 caps are HERMEI. All the other caps are Elite, except for the 22uf next to the big cap - it looks to be KY.

            Comment

              #7
              Re: Acer V223w

              Hermei are not great either - replace as well.
              And the ky

              Replace all except the big one will give a good start to any repair.

              You should use good quality caps like Panasonic FM or FR
              Rubycon or nichicon
              Last edited by selldoor; 12-30-2012, 03:49 AM.
              Please upload pictures using attachment function when ask for help on the repair
              http://www.badcaps.net/forum/showthread.php?t=39740

              Comment

                #8
                Re: Acer V223w

                Thanks for helping a girl out. I finally got the replacement caps from mouser and installed them today. The monitor has been working great ever since.

                I may have to take apart my Acer AL2016W soon. It has been making an annoying high pitched noise. I was able to make it go away by turning down the brightness.

                Comment

                  #9
                  Re: Acer V223w

                  Well done - thanks for reporting back - i would do the 2016 sooner rather than later.
                  Putting it off puts more pressure on other components making what could be a simple cap replacement into a nightmare, as well as more expensive.
                  Please upload pictures using attachment function when ask for help on the repair
                  http://www.badcaps.net/forum/showthread.php?t=39740

                  Comment

                    #10
                    Re: Acer V223w

                    Well, I guess I reported back too soon. It was working great for a few days. Now it's dead again. It will display the Acer logo, then the power LED goes out and there is no display. If I unplug the power cord and immediately plug it back in, the power LED will flicker on for a brief moment. If I leave the power cord unplugged for a long time, when I plug it back in, the monitor will power on just long enough to display the Acer logo and then go out again. Any other suggestions as to what to do next? I do have a Fluke 179 multimeter that I can use to test parts with. Does anyone want a picture of the board after I replaced the caps?

                    Comment

                      #11
                      Re: Acer V223w

                      Hi - Yes please repost straight on front and back pictures.
                      please post good clearpictures of each board, front and back (in the same orientation) and close up of connectors, (max resolution 2000x2000 and 2MB) using the manage attachments button, which is found by clicking "go advanced" under quick reply.

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

                      Examples of what is needed

                      https://www.badcaps.net/forum/attach...7&d=1280167246

                      https://www.badcaps.net/forum/attach...6&d=1280167246

                      https://www.badcaps.net/forum/attach...4&d=1280167246
                      Please upload pictures using attachment function when ask for help on the repair
                      http://www.badcaps.net/forum/showthread.php?t=39740

                      Comment

                        #12
                        Re: Acer V223w

                        Originally posted by wcoyote View Post
                        I do have a Fluke 179 multimeter that I can use to test parts with.
                        See my sig file below for budm's basic lcd troubleshooting guide (called LCD TV and Monitor Troubleshooting Guides by budm). It explains what DC voltages you should be looking for.
                        --- 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

                          #13
                          Re: Acer V223w

                          @RC - Thought that would grab your eye
                          Please upload pictures using attachment function when ask for help on the repair
                          http://www.badcaps.net/forum/showthread.php?t=39740

                          Comment

                            #14
                            Re: Acer V223w

                            i have the same exact monitor. Same pics as the one the guy showed in his first post. I replaced all the caps on the power supply board except one which was a small one........not sure of the rating but i think it was a 25uf / 35v caps.

                            Now when i turn on the monitor..........its white......the power led comes on turns blue then screen goes white.......

                            any ideas

                            Comment

                              #15
                              Re: Acer V223w

                              Originally posted by Welchs101 View Post
                              Now when i turn on the monitor..........its white......the power led comes on turns blue then screen goes white.......
                              White screen suggests fuse is open on panel/t-con board.
                              --- 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

                                #16
                                Re: Acer V223w

                                thanks for responding.......

                                what is panel/t-con board...........i assume this is not the power supply board......is this the logic board?

                                Comment

                                  #17
                                  Re: Acer V223w

                                  Originally posted by Welchs101 View Post
                                  what is panel/t-con board...........i assume this is not the power supply board......is this the logic board?
                                  See attachment...
                                  Attached Files

                                  Comment

                                    #18
                                    Re: Acer V223w

                                    I think I got similar problem. The monitor behaves as if it was running but no image. Seems like the image is just like-a "out of viewable area"? So that there is problem either with signal board or the panel board?
                                    Attached Files
                                    Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

                                    Exclusive caps, meters and more!
                                    Hardware Insights - power supply reviews and more!

                                    Comment

                                      #19
                                      Re: Acer V223w

                                      Originally posted by Behemot View Post
                                      I think I got similar problem. The monitor behaves as if it was running but no image. Seems like the image is just like-a "out of viewable area"? So that there is problem either with signal board or the panel board?
                                      Have you tried the torchlight test?

                                      Comment

                                        #20
                                        Re: Acer V223w

                                        what's that
                                        Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

                                        Exclusive caps, meters and more!
                                        Hardware Insights - power supply reviews and more!

                                        Comment

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