I'm not sure about the best place to post this since it's not model-specific but I am encountering it working on some compacts so put it here.
I am trying to fix an HD drive with a clear issue with the microswitch that detects disk insertion. I took the bad switch off and tried to put on another from a donor drive (same type) drive. In the process of doing this the middle pin on the donor switch has gone missing. I'm not aware of breaking it off, it's like it was never there although there was solder corresponding to it on the board and I know this switch worked on the drive. Seeing that the switch worked with the two remaining pins (their connection is switched by the switch) I tried to put the switch in anyway but it does not work at all, no response to disk. Then I looked at the bad switch and saw that the pin missing from the donor is apparently hardwired to one of the other two pins, so I jumped those pins on the drive but still no response.
Now in testing the bad switch it seems to work with the middle and one end pin tied together and the other end pin switched relative to both of those by the switch. So I'm wondering if that is actually how it should work or one pin should be normally closed and one normally open?
I guess wondering how to determine for sure which switch is good if either and if not possible substitutes? Thanks.
I am trying to fix an HD drive with a clear issue with the microswitch that detects disk insertion. I took the bad switch off and tried to put on another from a donor drive (same type) drive. In the process of doing this the middle pin on the donor switch has gone missing. I'm not aware of breaking it off, it's like it was never there although there was solder corresponding to it on the board and I know this switch worked on the drive. Seeing that the switch worked with the two remaining pins (their connection is switched by the switch) I tried to put the switch in anyway but it does not work at all, no response to disk. Then I looked at the bad switch and saw that the pin missing from the donor is apparently hardwired to one of the other two pins, so I jumped those pins on the drive but still no response.
Now in testing the bad switch it seems to work with the middle and one end pin tied together and the other end pin switched relative to both of those by the switch. So I'm wondering if that is actually how it should work or one pin should be normally closed and one normally open?
I guess wondering how to determine for sure which switch is good if either and if not possible substitutes? Thanks.
