[time-nuts] 5071A with ATTENTION flashing

paul swed paulswedb at gmail.com
Wed Nov 9 12:18:44 EST 2016


Adrian
I think you may have responded to the wrong thread??
Regards
Paul

On Wed, Nov 9, 2016 at 10:21 AM, Adrian Godwin <artgodwin at gmail.com> wrote:

> I'm still struggling to get the acrylic I need. I've been into London a few
> times but not been able to get to the shop in business hours. Guess I could
> order online if necessary but it will cost a fair bit more.
>
> On Wed, Nov 9, 2016 at 3:19 PM, paul swed <paulswedb at gmail.com> wrote:
>
> > I saw the low CBT temp also and 10 degrees C seem like allot. However in
> > the 5060/5061 Frankenstein I run the oven at +10 degrees (approx.) to
> what
> > the tube asks for. To drive C fumes out of the oven. A possible
> assumption
> > is the cooler oven is emitting fewer C's and the emult is trying to make
> up
> > for it.
> >
> > Li
> > If it were mine and I checked the other suggestions. I would if
> convenient
> > actually attempt to raise the oven temp a bit to see what happens. I
> would
> > measure current and use an external supply to match it and then gently
> > increase the current. But from the thread you do not own it and I think a
> > large amount of money was at stake.
> >
> > Regards
> > Paul
> > WB8TSL
> >
> >
> > On Wed, Nov 9, 2016 at 7:52 AM, Scott McGrath <scmcgrath at gmail.com>
> wrote:
> >
> > > 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 <379998 at qq.com> 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";<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
> > > >
> > > >
> > > > _______________________________________________
> > > > time-nuts mailing list -- time-nuts at febo.com
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