NEC 2080UXi - looks dead but power led lit all the time

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  • rman12
    New Member
    • Jun 2010
    • 4
    #1

    NEC 2080UXi - looks dead but power led lit all the time

    I posted this originally on fixya but no response. Hopefully this forum can help.

    I have an NEC 2080UXi and the power led indicator is lit as soon as I plug in power and will not power off. Back light never comes on. Capacitors appear to be fine - no bulging or leaking. I did notice that a resistor did burn up and appears to be a small wattage from size of the leads. Does anyone know what resistance R915 is? It's located under the middle heat sink on the power supply board (the brown coloured board).

    I posted a picture (from another person on fixya) of what the insides look like except the capacitor on my power board appears fine.

    Any help is appreciated.

    Thanks.
    Attached Files
    Tags: None
    • retiredcaps
      Badcaps Legend
      • Apr 2010
      • 9271
      #2
      Re: NEC 2080UXi - looks dead but power led lit all the time

      The pic is so far zoomed out, I can't make out any of the writing on the power board.

      Odd that it won't power off. Long shot, but try setting the monitor back to factory settings via front panel menus.

      If that doesn't work, test the on/off switch for continuity with DMM.

      Originally posted by rman12
      I have an NEC 2080UXi and the power led indicator is lit as soon as I plug in power and will not power off.

      Does anyone know what resistance R915 is? It's located under the middle heat sink on the power supply board (the brown coloured board).
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        Comment

        • Wrog
          Badcaps Veteran
          • Oct 2009
          • 472
          #3
          Re: NEC 2080UXi - looks dead but power led lit all the time

          Originally posted by rman12
          I have an NEC 2080UXi and the power led indicator is lit as soon as I plug in power and will not power off. Back light never comes on.
          Does the power LED color change when a signal is applied ("on" versus "sleep" modes)? Also, check for a blown fuse around the inverter power.

            Comment

            • rman12
              New Member
              • Jun 2010
              • 4
              #4
              Re: NEC 2080UXi - looks dead but power led lit all the time

              Originally posted by Wrog
              Does the power LED color change when a signal is applied ("on" versus "sleep" modes)? Also, check for a blown fuse around the inverter power.
              As soon as the power cable is plugged in the power led is lit. It never goes to "sleep" mode. As I originally stated there is resistor that burned away - so there must be a problem somewhere.

                Comment

                • rman12
                  New Member
                  • Jun 2010
                  • 4
                  #5
                  Re: NEC 2080UXi - looks dead but power led lit all the time

                  Here are some close up photos of the power board.
                  Attached Files

                    Comment

                    • elinap
                      New Member
                      • Oct 2010
                      • 1
                      #6
                      Re: NEC 2080UXi - looks dead but power led lit all the time

                      Hello,

                      I have the same monitor, with the same problem. But, the resistor that you point at in my case is there,
                      If you are interested, I can try to get a photo of it, so you can see its value from the colours.

                      Do you know if it is possible to replace this power supply, or do you know of somebody that has got schematics and perhaps could repair it?
                      It is such a pity to lose the nice monitor, because of 1-2 resistors that burned out...

                      Best regards,

                      Eli
                      (in London, tel: mod edit- please do not post your personal info!)
                      Last edited by dood; 10-26-2010, 12:30 PM. Reason: Remove personal info

                        Comment

                        • retiredcaps
                          Badcaps Legend
                          • Apr 2010
                          • 9271
                          #7
                          Re: NEC 2080UXi - looks dead but power led lit all the time

                          Originally posted by elinap
                          If you are interested, I can try to get a photo of it, so you can see its value from the colours.
                          Post a pic.

                          To read it, see

                          http://wiki.xtronics.com/index.php/Resistor_Codes
                          --- 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

                            • jetadm123
                              Badcaps Legend
                              • Feb 2010
                              • 2169
                              #8
                              Re: NEC 2080UXi - looks dead but power led lit all the time

                              The resistor probably didn't burn up on it's own. The failure is usually caused by another component failing. Test other components surrounding the resistor for shorts.

                                Comment

                                • fastslim
                                  New Member
                                  • Jul 2013
                                  • 1
                                  • Russia
                                  #9
                                  Re: NEC 2080UXi - looks dead but power led lit all the time

                                  Hi everyone! I have this broblem too. Power's led wouldn't change color, and monitor wouldn't show picter. It was two week ago. Last time i hear bang, and see smoke. Power plato burned near R917. How i can fix it?
                                  Last edited by fastslim; 07-15-2013, 11:46 AM.

                                    Comment

                                    • neodasan
                                      New Member
                                      • Aug 2013
                                      • 1
                                      • United States
                                      #10
                                      Re: NEC 2080UXi - looks dead but power led lit all the time

                                      I am having the exactly same problem with this. Anyone knows a solution for this?

                                        Comment

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