Just to get this data on the list.
Here are the measured voltages on U1: Pin Fn Voltage Limits 9 Beam I 0.001 1.01 to 3.73 18 Ion Pump E 2.436 1.72 to 3.01 7 Ion Pump I 0.020 0 to 2.0 19 Elec Multi E 2.060 0.84 to 3.01 17 C-Field I 3.65 3.28 to 4.45 (front panel sw set at 500) 16 Cs Oven T 1.379 1.27 to 1.55 20 Xtal Oven Pwr 3.57 2.81 to 3.91 3 180 MHz Lvl 2.784 0.1 to 4.8 2 12.6 MHz Dig 4.84 4.0 to 5.0 23 12.6 MHz Ana 1.34 0.35 to 4.28 6 +5 Supply 2.427 2.35 to 2.68 4 +18 V Supply 2.484 2.42 to 2.68 22 - 18 V Supply 2.481 1.72 to 3.52 21 Chassis T 3.045 2.62 to 3.44 It has been on for four days. When I compare the 10 MHz out to my GPSDO, the frequency matches up when the control (meter 4) passes 3.2 volts. There is no movement in the Beam current (meter 3) as control sweeps. Tom ----- Original Message ----- From: Tom Knox To: Tom Miller ; Time-Nuts Sent: Wednesday, October 02, 2013 2:00 PM Subject: RE: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, Datum If anyone has a service manual I am also very interested. Thanks Thomas Knox > From: [email protected] > To: [email protected] > Date: Wed, 2 Oct 2013 13:22:45 -0400 > Subject: Re: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, Datum > > Hello Corby, > > Thanks for the help. Yes, could you copy me on the information for the U1 > chip? I do not have anything other than the user manual from Brooke. At this > time, anything will be a great help. > > > Best regards, > Tom > > > ----- Original Message ----- > From: <[email protected]> > To: <[email protected]> > Sent: Wednesday, October 02, 2013 11:47 AM > Subject: [time-nuts] FTS 4060 Cesium Time & Frequency Standard, Datum > > > Tom, > > On the 4060 you can easily monitor the Ion pump voltage and current, the > electron multiplier voltage, and other important parameters by measuring > the voltages on the U1 chip on the uP board. > This saves you fronm having to diconnect stuff to measure the HV and > such. > If you don't have a manual showing the pins of U1 I can post to pinout > here on Time Nuts. > > Corby > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. = _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
