Short on X-Sus board. Repair or replace?

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  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK
    #21
    Re: Short on X-Sus board. Repair or replace?

    Only possibility I can think of is one breaking down under load. Or perhaps you got dodgy IGBTs first time, or thermal mounting not perfect?
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

      Comment

      • tw2005
        Badcaps Legend
        • Oct 2011
        • 6458
        • Australia
        #22
        Re: Short on X-Sus board. Repair or replace?

        Originally posted by tom66
        Only possibility I can think of is one breaking down under load. Or perhaps you got dodgy IGBTs first time, or thermal mounting not perfect?
        Not the IGBTs. All OEM originals off scrap boards, at least 3 different sets and types. Not the driver ICs either.

        I'll ake them to work and put a cpacitance meter on them and see if anything reveals itself

          Comment

          • attainteddragon
            Badcaps Veteran
            • Apr 2013
            • 764
            • australia
            #23
            Re: Short on X-Sus board. Repair or replace?

            out of curiosity, i would check the resistance on the ceramics and heat them with the rework to see if any of them drop there resistance when they heat up.

            just a thought.
            WHY CAN'T PHILIPS USE PHILLIPS HEAD SCREWS?

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              • tw2005
                Badcaps Legend
                • Oct 2011
                • 6458
                • Australia
                #24
                Re: Short on X-Sus board. Repair or replace?

                Originally posted by attainteddragon
                out of curiosity, i would check the resistance on the ceramics and heat them with the rework to see if any of them drop there resistance when they heat up.

                just a thought.
                Yeah, I going to try and get hold of a capacitance meter and do that. I'm really curious

                  Comment

                  • tw2005
                    Badcaps Legend
                    • Oct 2011
                    • 6458
                    • Australia
                    #25
                    Re: Short on X-Sus board. Repair or replace?

                    Could not get heat on these but doing a capacitance measurement with a fluke showed nothing remarkable. All the caps were comparative to others identical in the mix and the electros 150uf were 143 - 147uf.

                    and it's still working, anyway I'm moving on

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