Hi Some of the schematic is less important for "how it works" but all of it is useful for troubleshooting. I wonder if splitting off stuff like tracing out the power supplies and heaters might be a good idea...
Once we get into things like typical voltage levels, we will need to look at multiple units anyway. Bob -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Elio Corbolante Sent: Tuesday, February 14, 2012 8:31 PM To: time-nuts@febo.com Subject: [time-nuts] FE-5680A Schematics (v0.1) at the following address: < http://www.rhodiatoce.com/pics/time-nuts/FE-5680A/FE-5680A_schematics_v0.1.p df > you will find the 0.1 release of the FE-5680A schematics. New additions: - pinout of the unpopulated (24 pin) connector (J9) behind the DB9 - connections between CPU/MAX3232 and the *TWO* serial ports!!! - component values of the 10MHz filter + option on PCB to output a square 10MHz wave on DB9 - connections between CPU and MAX1246 (A/D converter) - connections between XC9572 and MAX392 (quad analog switch) - unknown pins marked as '?' As you can see, it seems FE-5680A fully supports 2 serial ports: one on DB9 and the other one on the unpopulated connector (J9) behind DB9. Any comments/suggestions are welcome. . ciao _ Elio. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.