I've got a Catapillar ECU here from an 18 wheeler. Complaint: Effer doesn't start! Nice!
Well here we go: open up the ECU and you get greeted with 70 pins of Catapillar madness! It takes a bit of time to desolder 70 pins and some prying to get it out.
Underneath that main board is another board with all the Power goodies. You thing the 70 pins are hard? This bottom board is a real pain to figure out what pins to unsolder in order to get it out. However I did get that power board out too. Only took me almost 3 hours to get those 2 boards off and that is with using a heat gun and a desoldering at the same time. Had to empty the desoldering gun 5 times! It's probably close to 100 pins to desolder before one gets anywhere in this thing.
So what's the problem again? No start. The victims this time are 2 Fairchild N548AB in a TO247 SHT package. Dead short.
Now to my problem: With what do I replace these? I can't find anything much useful about them besides that they are discontinued.
Here is some ECU porn.
Well here we go: open up the ECU and you get greeted with 70 pins of Catapillar madness! It takes a bit of time to desolder 70 pins and some prying to get it out.
Underneath that main board is another board with all the Power goodies. You thing the 70 pins are hard? This bottom board is a real pain to figure out what pins to unsolder in order to get it out. However I did get that power board out too. Only took me almost 3 hours to get those 2 boards off and that is with using a heat gun and a desoldering at the same time. Had to empty the desoldering gun 5 times! It's probably close to 100 pins to desolder before one gets anywhere in this thing.
So what's the problem again? No start. The victims this time are 2 Fairchild N548AB in a TO247 SHT package. Dead short.
Now to my problem: With what do I replace these? I can't find anything much useful about them besides that they are discontinued.
Here is some ECU porn.
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