The Shop > Electronics & IC Programing
Help replacing IGBT's
dawesy:
cheers guys, ill try and get some more detailed pics, any areas in particular?
6 IGBT's ordered (theyre only a few pounds each so no big loss if theres somthing else fried) :Doh: :zap:
awemawson:
Try and get some numbers off those 8 legged DILs that I mentioned - and also the PC1 .... PN (n) to the left
dawesy:
Hi Andrew. Got the best shot I can. Removed the sealant from all of them and they all have the same p/ number. PC923L which is an optocoupler from what I've googled. Is there likely to be any damage and is there any way to test? ( I have a multimeter and a soldering iron but no lab type power supply. )
awemawson:
Yes I thought that they probably were opto-isolators. Hard to say if they have sustained lethal damage without the circuit. Personally, I'd buy a few just in case seeing you have two inverters to fix - also I'd put them in sockets.
dawesy:
we'll suck it and see, £3 each so no biggy. good idea about the sockets, didnt fancy trying to solder SMT components on :Doh:
hopefully should get the new IGBT's tomorrow so we'll soon know.
i only have the one inverter as i got it replaced FOC (just had to send the damage unit back), ive a feeling that one was a little more FUBAR though as after the bang and flash that came from it, when i applied power to it there was a pop and the magic smoke escaped,it didnt even power up after that. this one at least powered up after just blew the fuse when 'go' was pressed :scratch:
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