that's telling you that the CBT oven is not up to temp so you could have a failed heater in the tube or the oven controller is malfunctioning
The former well you need a new tube which symmetricom will be happy to sell you for a 5 figure price tag. The latter is limited by your repair skills and parts and data availability Content by Scott Typos by Siri > On Nov 9, 2016, at 7:42 AM, Li Ang <[email protected]> wrote: > > According to the Log, "CBT Oven Err: -9.55 C" might be something wrong. > However, I can't find the correct range in the manual. Does anyone have the > information about this parameter? > > > Regards > Li Ang > > > > > ------------------ Original ------------------ > From: "Li Ang";<[email protected]>; > Date: Wed, Nov 9, 2016 02:48 PM > To: "Tom Van Baak"<[email protected]>; "Discussion of precise time and > frequency measurement"<[email protected]>; > > Subject: Re: [time-nuts] 5071A with ATTENTION flashing > > > > Hi Tom > > I have collected the log from it. Log level is service. The 9.2G pll pass the > test today. The log during the power-up process is also included. > > > Regards > > Li Ang / BI7LNQ > > ------------------------------------- > > > > scpi > > > MJD 0 02:02:18 > > CBT ID: 3128A00642(H) > > Status summary: Fatal Error (see Log) > > Power source: AC > > Log status: One entry > > > Freq Offset: 0e-15 Osc. control: -9.56 % > > RF amplitude 1: 6.3 % RF amplitude 2: 6.3 % > > Zeeman Freq: 39949 Hz C-field curr: 12.213 mA > > E-multiplier: 2553 V Signal Gain: 14.4 % > > > CBT Oven: 0.0 V CBT Oven Err: -9.55 C > > Osc. Oven: -9.1 V Ion Pump: 0.4 uA > > HW Ionizer: -0.1 V Mass spec: 12.3 V > > SAW Tuning: 0.0 V DRO Tuning: 7.3 V > > 87MHz PLL: 0.8 V uP Clock PLL: 1.8 V > > +12V supply: 12.3 V -12V supply: -12.3 V > > +5V supply: 5.4 V Thermometer: 46.2 C > > > > scpi > > > scpi > ? > > E-103> exit > > E-113> > > E-113> Log status: One entry > > > Log 000 of MJD 0 00:12:40: Low Cs signal (60) with max Emult > > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > > E-113> > > E-113> PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > PASS: CBT mass spec test > > PASS: CPU RTDS test > > PASS: CPU clock locked test > > PASS: DDFS register test > > PASS: 87MHz PLL test > > PASS: 9.2 GHz PLL test > > PASS: Servo register test > > PASS: Servo convertor timeout test > > PASS: Interface register test > > PASS: Interface abus test > > PASS: Pps register test > > PASS: Pps interrupt test > > PASS: power logic signals test > > PASS: CBT register test > > PASS: CBT window comp test > > PASS: CBT therm test > > PASS: CBT Cs oven test > > PASS: CBT hw ion test > > > E-113> > > E-113> scpi > > > scpi > > > Performing hardware tests > > PASS: CBT register test > > PASS: DDFS register test > > PASS: Servo register test > > PASS: Interface register test > > PASS: Pps register test > > Warming up > > Osc. oven is up > > > MJD 0 00:00:29 > > CBT ID: 3128A00642(H) > > Status summary: Warming up > > Power source: AC > > Log status: One entry > > > Freq Offset: 0e-15 Osc. control: -9.56 % > > RF amplitude 1: 6.3 % RF amplitude 2: 6.3 % > > Zeeman Freq: 39949 Hz C-field curr: 12.213 mA > > E-multiplier: 1524 V Signal Gain: 14.4 % > > > CBT Oven: 20.6 V CBT Oven Err: -9.55 C > > Osc. Oven: -9.0 V Ion Pump: 0.4 uA > > HW Ionizer: 1.0 V Mass spec: 12.3 V > > SAW Tuning: 0.0 V DRO Tuning: 7.3 V > > 87MHz PLL: 0.8 V uP Clock PLL: 1.8 V > > +12V supply: 12.2 V -12V supply: -12.2 V > > +5V supply: 5.4 V Thermometer: 45.0 C > > > > scpi > Cs oven is up > > F(z) = 39948.9 Hz > > Low Cs beam signal = 3 > > Raising emult voltage... > > Low Cs signal (37) with max Emult > > Fractional freq. offset is -0.000000e+00 > > Fatal Error (see Log) > > > scpi > > > scpi > Log status: 2 entries > > > Log 000 of MJD 0 00:12:40: Low Cs signal (60) with max Emult > > Log 001 of MJD 0 00:09:59: Low Cs signal (37) with max Emult > > > > MJD 0 00:13:46 > > CBT ID: 3128A00642(H) > > Status summary: Fatal Error (see Log) > > Power source: AC > > Log status: 2 entries > > > Freq Offset: 0e-15 Osc. control: -9.56 % > > RF amplitude 1: 6.3 % RF amplitude 2: 6.3 % > > Zeeman Freq: 39949 Hz C-field curr: 12.213 mA > > E-multiplier: 2553 V Signal Gain: 14.4 % > > > CBT Oven: 0.0 V CBT Oven Err: -8.22 C > > Osc. Oven: -9.1 V Ion Pump: 1.0 uA > > HW Ionizer: 0.0 V Mass spec: 12.2 V > > SAW Tuning: 0.0 V DRO Tuning: 7.3 V > > 87MHz PLL: 0.8 V uP Clock PLL: 1.7 V > > +12V supply: 12.3 V -12V supply: -12.3 V > > +5V supply: 5.4 V Thermometer: 46.4 C > > > > scpi > Log status: 2 entries > > > Log 000 of MJD 0 00:12:40: Low Cs signal (60) with max Emult > > Log 001 of MJD 0 00:09:59: Low Cs signal (37) with max Emult > > > > ---Original--- > From: "Tom Van Baak"<[email protected]> > Date: 2016/11/4 00:42:46 > To: "Discussion of precise time and frequency > measurement"<[email protected]>; > Subject: Re: [time-nuts] 5071A with ATTENTION flashing > > > Hi Li, > > The "Low cs signal with max Emult" is the classic error indicating it's out > of gas. That's a bad sign. But the "9.2GHz PLL test 10.3v" is something else. > So maybe there's hope? Or maybe you have two big problems instead of one. > Rick might know. > > For additional information, connect a PC to the serial port and capture the > diagnostic information. Right after power up, press TOP -> CONFIG -> LOG -> > SERVICE to set the unit into verbose diagnostic mode. You should see lines > print every now and then as it undergoes self test and calibration. > > You can also press TOP -> INFO -> PRINT to get a nicely formatted summary. Or > TOP -> LOG -> PRINT to get the entire log history. That sometimes has lots of > clues. The advantage of using the serial port is you get a permanent record > of all this information. Viewing all this by the LCD screen can be tedious. > > There's more information in 05071-90040, the 5071A Assembly-Level Service > Manual, copies of which are on the web. Also 05071-90041, Operating and > Programming Manual. > > /tvb > > ----- Original Message ----- > From: "Li Ang" <[email protected]> > To: "time-nuts" <[email protected]> > Sent: Thursday, November 03, 2016 8:10 AM > Subject: [time-nuts] 5071A with ATTENTION flashing > > >> Hi >> Today I met one HP 5071A with option 001 at one secondhand equipment >> company. This one can not enter CONTINUOUS OPERATION status, the ATTENTION >> led flashes. >> There is a "Low cs signal with max Emult" error in the log. I have run the >> self-test, and it stopped at "9.2GHz PLL test 10.3v". I can only remember >> the the pump current was 0.8uA or less, C-filed was about 12mA. >> The seller is asking for about 4000$, I am wondering if it's repairable. >> Since it is a "HP" branded 5071A with 001 option, I do not know if the Cs >> tube is dying or not, according to the two current values? >> How do I know one 5071A/5061/5062 is dying or is still in good health by >> the readings? >> >> >> Thanks >> >> >> de BI7LNQ > > > _______________________________________________ > 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. _______________________________________________ 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.
