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I-inc cy199d

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    #1

    I-inc cy199d

    Hello, to all.

    I have finally repaired one of the displays that I was working on.
    I had low batteries in the Cap Analyzer and did not know the results I was getting was miss-leading. The low battery warning finally sounded. So I replaced the batts. Next checking some previoully removed caps I reallized that the Cap Analyzer batts had been low for a while. The caps that had previously had tested near good were now testing bad with high esr.
    Wow how long had it been that way. What a difference the new batts made.

    The display had three bad bulging caps that tested high esr. One even tested near good but out of circuit showed high esr. They were replaced and the display is now working good. They were Elite brand 470uF 25v. Replaced with 470uF 35v Panasonic. I don't know how good the Panasonic caps are but I will leave the monitor on for a couple of days to see how they do.

    Has anyone else had this experiance with low batts giving miss-leading results.
    Tags: None
    #2
    Re: I-inc cy199d

    Welcome to the forums!

    What series of Panasonic capacitor (FC, NHG etc.) did you use?
    And what were the original series of the Elite capacitors (eg. SM, EJ etc.)?
    My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

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      #3
      Re: I-inc cy199d

      Out of curiosity, what brand/model esr tester are you using? Maybe you can modify the low battery warning circuit to sound at a slightly higher battery voltage.

      Comment

        #4
        Re: I-inc cy199d

        Hello, not sure japlytic how to read the old caps. Elite ES(M)105* C (c)0720 PET printed on the side of cap.

        The new Panasonic caps. 85*C M. Butt 35v instead of 25v. Oh wow I did not even realize when I bought them that they were lower temp caps. Maybe they will hold up.

        jetadm123 the esr tester is Cap Analyzer 88A. Not sure about modifying but when purchased just about 1 month ago assumed that they would come with fresh batts. They use 4 AAA.

        Comment

          #5
          Re: I-inc cy199d

          Originally posted by TrippKJ4BKD View Post
          The new Panasonic caps. 85*C M. Butt 35v instead of 25v. Oh wow I did not even realize when I bought them that they were lower temp caps. Maybe they will hold up.
          If you have 10 monitors to fix, I suggest getting the proper caps for a SMPS application. The Panasonic caps listed above are not low ESR caps.

          Get Panasonic FM or FC series. The 470uf 35V FM series is out of stock at digikey and mouser for some reason. Same for other manufacturers.
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            #6
            Re: I-inc cy199d

            I understand what you are saying. Testing the new caps they show .25 esr but appear to want to go to .10 so some whare in between. In other words, solid led lit up at .25 and some flickering at .10 the Cap Analyzer does not have reading lower than .10 esr. If you know what I am trying to say. I don't know if that is considered low esr. Maybe they will do in a pinch but I will probablly be replaceing them as soon as I can get them.

            Comment

              #7
              Re: I-inc cy199d

              Originally posted by TrippKJ4BKD View Post
              I don't know if that is considered low esr.
              Have a look at the Panasonic FM datasheet. It will list the ESR for each cap.



              For 470uF 25V, the ESR is 0.026 for the 10x16mm cap.
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              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.

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              Comment

                #8
                Re: I-inc cy199d

                Man quite a bit lower than .25 than. Thanks for pointing this out.

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                  #9
                  Re: I-inc cy199d

                  I haven't done that much with screens compared to some folks in here but as things go an I-inc cy199d happens to be one I did maybe a year ago do [and I happen to be using it right now].

                  As I recall it was a straight forward and easy 'just caps' fix.
                  I'll check my files and see if I made any notes on the repair.
                  Sometimes I'm good about notes, sometimes not.
                  .
                  Mann-Made Global Warming.
                  - We should be more concerned about the Intellectual Climate.
                  -
                  Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                  - Dr Seuss
                  -
                  You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                  -

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                    #10
                    Re: I-inc cy199d

                    I had one of these where the eeprom had failed.
                    I could have fixed it by soldering a new one in, but I ended up throwing it out when I moved house.

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                      #11
                      Re: I-inc cy199d

                      I haven't found any notes on that one.
                      Mann-Made Global Warming.
                      - We should be more concerned about the Intellectual Climate.
                      -
                      Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                      - Dr Seuss
                      -
                      You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                      -

                      Comment

                        #12
                        Re: I-inc cy199d

                        https://www.badcaps.net/forum/showth...559#post137559

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