[time-nuts] 5071A with ATTENTION flashing
Li Ang
379998 at qq.com
Wed Nov 9 12:42:59 UTC 2016
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";<379998 at qq.com>;
Date: Wed, Nov 9, 2016 02:48 PM
To: "Tom Van Baak"<tvb at leapsecond.com>; "Discussion of precise time and frequency measurement"<time-nuts at febo.com>;
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"<tvb at LeapSecond.com>
Date: 2016/11/4 00:42:46
To: "Discussion of precise time and frequency measurement"<time-nuts at febo.com>;
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" <379998 at qq.com>
To: "time-nuts" <time-nuts at febo.com>
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
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