Cisco C1000 network switch, dead, nothing happens when plugged in.
This board was initially loaded with corrosion. I removed the bigger components and cleaned off all the corrosion. I'm sure this was the root cause, so I havent tested anything yet.
This board uses an HR1203 (datasheet) (eval board)to control what appears to be the initial step-down from mains voltage. I've followed the traces, and this implementation is quite similar to the example schematic.
[url=https://obrazki.elektroda.pl/2874595800_1760905442.png][/url]
The burned-out trace in between the FET and the high-power diode appears to have once contained some SMD component.
I'm trying to figure out what this component may have been, and if it's safe to bypass. The example circuit in the datasheet does not show any components in that signal path.
This board was initially loaded with corrosion. I removed the bigger components and cleaned off all the corrosion. I'm sure this was the root cause, so I havent tested anything yet.
This board uses an HR1203 (datasheet) (eval board)to control what appears to be the initial step-down from mains voltage. I've followed the traces, and this implementation is quite similar to the example schematic.
| Datasheet | Eval Board |
[url=https://obrazki.elektroda.pl/2874595800_1760905442.png][/url]
The burned-out trace in between the FET and the high-power diode appears to have once contained some SMD component.
I'm trying to figure out what this component may have been, and if it's safe to bypass. The example circuit in the datasheet does not show any components in that signal path.