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DVR camera recorder switching power supply capacitor failure really

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    DVR camera recorder switching power supply capacitor failure really

    These cheap non brand capacitors at it again

    Last night we had a power outage [ long drawn out trying three to come back up before going out completely ] and when I went to turn the DVR camera recorder back today no go 3 bad capacitors ( one capacitor no ESR reading on DVR board the other 3 capacitor on the power supply board over 40 ohm this is not a misprint ) on the external switching power supply and one capacitor on the DVR camera recorder board where the power supply that goes to the hard drive disk is

    Well at least I have the cameras back on line I to try the hard drive tomorrow and see if it got damaged as well

    One note the cameras are on a medical grade switching power supply by themselves because when I first put in this system I continuously had switching power supply failure on the cameras and had to replace several cameras and switching power supply of because of switching power supply failure

    All I can say good about this DVR camera recorder and switching power supply is that this has lasted about 6 years so I guess I really should not complain to much about it

    I will post some pictures of the switching power supply before I put heat shrink tubing on it to keep it together and after I try the hard drive to see if it still work
    Last edited by sam_sam_sam; 01-22-2022, 06:52 PM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

    #2
    Re: DVR camera recorder switching power supply capacitor failure really

    6 years = 52,594.92 Hours, I would say that cap had a full life

    Comment


      #3
      Re: DVR camera recorder switching power supply capacitor failure really

      6 years POH or 6 years sitting in the closet?

      Comment


        #4
        Re: DVR camera recorder switching power supply capacitor failure really

        Originally posted by R_J View Post
        6 years = 52,594.92 Hours, I would say that cap had a full life
        Yeah it even keeps trying to restart which is really weird even with the capacitors being at over 40 ohm ESR reading because the power supply light pulsing very quickly on and off on the DVR camera recorder
        Last edited by sam_sam_sam; 01-23-2022, 12:06 AM.
        9 PC LCD Monitor
        6 LCD Flat Screen TV
        30 Desk Top Switching Power Supply
        10 Battery Charger Switching Power Supply for Power Tool
        6 18v Lithium Battery Power Boards for Tool Battery Packs
        1 XBox 360 Switching Power Supply and M Board
        25 Servo Drives 220/460 3 Phase
        6 De-soldering Station Switching Power Supply 1 Power Supply
        1 Dell Mother Board
        15 Computer Power Supply
        1 HP Printer Supply & Control Board * lighting finished it *


        These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

        1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
        2 Hem Saw Computer Stack Board

        All of these had CAPs POOF
        All of the mosfet that are taken out by bad caps

        Comment


          #5
          Re: DVR camera recorder switching power supply capacitor failure really

          Well is has been running scene last night and so far so good I am supposedly going on vacation next week but not this Monday but next Monday and then I will test the hard drive and if still good will put it all back together and call it repaired
          9 PC LCD Monitor
          6 LCD Flat Screen TV
          30 Desk Top Switching Power Supply
          10 Battery Charger Switching Power Supply for Power Tool
          6 18v Lithium Battery Power Boards for Tool Battery Packs
          1 XBox 360 Switching Power Supply and M Board
          25 Servo Drives 220/460 3 Phase
          6 De-soldering Station Switching Power Supply 1 Power Supply
          1 Dell Mother Board
          15 Computer Power Supply
          1 HP Printer Supply & Control Board * lighting finished it *


          These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

          1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
          2 Hem Saw Computer Stack Board

          All of these had CAPs POOF
          All of the mosfet that are taken out by bad caps

          Comment

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