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    #1

    NEC 2080 Power Supply

    I have a NEC 2080 faulty power supply, all the caps test good. Anybody have any suggestions.
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    #2
    Re: NEC 2080 Power Supply

    Originally posted by TrevorBlain View Post
    Anybody have any suggestions.
    1) Yes. See my sig file below on how attach pics of your lcd boards (power and logic) to this forum and please do not post inline or offsite.

    2) Do you have a multimeter?
    --- 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 ---

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      #3
      Re: NEC 2080 Power Supply

      In addition to retiredcaps request, how to did you test the caps? Also, can you please give a better description of the symptoms? Saying it's "faulty" is like calling your doctor on the phone and saying "I'm sick, what's wrong with me?"

      Comment

        #4
        Re: NEC 2080 Power Supply

        Originally posted by jetadm123 View Post
        Saying it's "faulty" is like calling your doctor on the phone and saying "I'm sick, what's wrong with me?"
        That is so beautiful

        In my day work I repair alarmsystems, and a typical fault description is " its not working "

        Comment

          #5
          Re: NEC 2080 Power Supply

          Originally posted by Rob Northen View Post
          That is so beautiful

          In my day work I repair alarmsystems, and a typical fault description is " its not working "
          Anyone who has worked in the service/repair industry knows exactly what you're saying.

          Comment

            #6
            Re: NEC 2080 Power Supply

            Originally posted by jetadm123 View Post
            In addition to retiredcaps request, how to did you test the caps? Also, can you please give a better description of the symptoms? Saying it's "faulty" is like calling your doctor on the phone and saying "I'm sick, what's wrong with me?"
            1) First off let me say that I had no idea that I was going to get chastised like this from everyone one for saying I have a "faulty" power supply.

            2) I removed all the caps from the board and tested them with a SENCORE capacitor & inductor analyzer. As a matter of fact I removed most of the componets from the board and tested them.

            3) Yes, I have a DDM.

            4) All voltage readings are good on the power supply under no load conditions. As soon as you put the load on it the voltages start to fluctuate from 390vdc to 0vdc.

            5) I have repaired many of the NEC 2080 and 2090 power supplies and it has always been faulty caps. I have never had a problem like this one.

            Comment

              #7
              Re: NEC 2080 Power Supply

              Originally posted by TrevorBlain View Post
              1)4) All voltage readings are good on the power supply under no load conditions. As soon as you put the load on it the voltages start to fluctuate from 390vdc to 0vdc.
              See? That wasn't so hard was it?
              36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

              Comment

                #8
                Re: NEC 2080 Power Supply

                Thanx for all the help?

                Comment

                  #9
                  Re: NEC 2080 Power Supply

                  Still no pictures of your boards.
                  --- 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

                    #10
                    Re: NEC 2080 Power Supply

                    It is a NEC 2080 power supply! Why do you need a picture?

                    Comment

                      #11
                      Re: NEC 2080 Power Supply

                      The simple answer.is that like a lot of monitor manufacturers,The Model number may be the same, but internally they can be totally different !!

                      Comment

                        #12
                        Re: NEC 2080 Power Supply

                        Originally posted by TrevorBlain View Post
                        It is a NEC 2080 power supply! Why do you need a picture?
                        OK, replace r201 and Q106
                        36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

                        Comment

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