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Caterpillar ECU repair, need N548AB replacement?

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    #81
    Re: Catapillar ECU repair, need N548AB replacement?

    Well, I guess that thing goes in my “fix later pile”… for some crappy winter day or another boring lockdown. Thanks anyway guys for all the ideas!

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      #82
      Re: Catapillar ECU repair, need N548AB replacement?

      My "fix later pile" tends to end up being the spare parts pile

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        #83
        Re: Catapillar ECU repair, need N548AB replacement?

        My fix later pile is the same way but some of the time it does get fix but far more of them become parts
        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

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          #84
          Re: Catapillar ECU repair, need N548AB replacement?

          a very large percentage in my fix later pile does get fixed at some point. Actually during the shutdown I had all the time I needed to reduce my fix later pile down to zero. Currently this ECU is my only thing in the fix later box! I guess I did pretty good. My problem at the moment is, that I have way too many things going that need to be done before it gets too cold outside. Work is total nuts these days and everybody wants something done or fixed before it's getting cold outside. Oh well... at least I still have a job.

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            #85
            Re: Catapillar ECU repair, need N548AB replacement?

            Originally posted by CapLeaker View Post
            Oh well... at least I still have a job.
            I guess that that you still have a job and they have not closed down because of the corona 19 virus

            I been there which was not fun
            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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