Reply to "SER2 DB-9 issues/Legacy System Utility"

Originally Posted by cjack:

I just checked the bad Base and pin 2, recv data is very loaded down...barely a volt or so of transition. Pin 3, send data is fine. So the receive input of the Base is shorted somehow. I take it this is a Uart chip of some kind. Wonder how hard it would be to find and replace. Surface mount no doubt...

Are you measuring this with a multimeter to the unconnected serial port pins on the Base, or with a 'scope monitoring an active connection between the Base and another serial device (like your USB serial adapter)?

8/30/145:22 PM

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