@Framiga
its very hard to test parts on a card while they are in place. You will get false readings that way because your reading everything in the card that the item is connected to. Thats why they have card testers that run test on the complete card. your best bet would be to see if anyone has a tester that will work. i'm sure only DCE has the proper connectors to hook them up to a tester, but you never know. If you can find a replacement you can alwys remove the part and just see what happens with a new part.