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Discussion of precise time and frequency measurement

Re: [time-nuts] TBolt help...

EWKehren@aol.com

Tue, Jun 20, 2017 5:44 PM

You are not the only one that has experienced that problem happened to my
friend Juerg today too and a while back to me
Bert Kehren

In a message dated 6/20/2017 1:15:34 P.M. Eastern Daylight Time,
dave.mallery@gmail.com writes:

many thanks to all!

it was much simpler: the pins in the power plug on the Tbolt had gradually
slid up in the connector block till the -12 disconnected.
all this in a closed insulated box on the wall!!!

humbled and happy

73,

dave mallery, k5en

On Mon, Jun 19, 2017 at 7:12 PM, J. L. Trantham jltran@att.net wrote:

I had a T-Bolt 'failure' when my -12V supply died.

I am aware of another event on the list when the solder connection at the
-12V connector to the t-Bolt failed.

Make sure the -12V is reaching the PCB for the T-Bolt.

Hope this helps.

Joe

-----Original Message-----
From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of Tom Van
Baak
Sent: Monday, June 19, 2017 3:42 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] TBolt help...

Hi Dave,

There was one other report of something similar over the past ten years.

did not look into it.

Since your TBolt was part of the group buy, I'll send you a new one.
Contact me off-list. But can you double check the -12 V power supply
voltage for me? Anything between -7 and -15 is probably ok. But if it

fails

it will affect the serial port. Also, if you have time, open the box and
use a 'scope on both the input (TTL) and output (RS232) of the serial
transceiver.

Thanks,
/tvb

----- Original Message -----
From: "Dave Mallery" dave.mallery@gmail.com
To: "Discussion of precise time and frequency measurement" <
time-nuts@febo.com>
Sent: Monday, June 19, 2017 1:16 PM
Subject: [time-nuts] TBolt help...

My Tbolt has been running for a long time, since the final group buy.

It is still running (indicated by the 10MHz output) but there is no

data

coming out the serial port. LH says so and so does my lil TSIP monitor,

well as my rs-232 cable monitor/breakout devices. I have tested all

the

cables involved.

If this has happened to you, were you able to isolate it further? is

fixable?

many thanks in advance!

dave mallery

--
Dave Mallery, K5EN (ubuntu linux 16-10)
PO Box 15 Ophir, OR 97464

  linux counter #64628 (since  1997)

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--
Dave Mallery, K5EN (ubuntu linux 16-10)
PO Box 15 Ophir, OR 97464

linux counter #64628 (since 1997)

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.

You are not the only one that has experienced that problem happened to my friend Juerg today too and a while back to me Bert Kehren In a message dated 6/20/2017 1:15:34 P.M. Eastern Daylight Time, dave.mallery@gmail.com writes: hi many thanks to all! it was much simpler: the pins in the power plug on the Tbolt had gradually slid up in the connector block till the -12 disconnected. all this in a closed insulated box on the wall!!! humbled and happy 73, dave mallery, k5en On Mon, Jun 19, 2017 at 7:12 PM, J. L. Trantham <jltran@att.net> wrote: > I had a T-Bolt 'failure' when my -12V supply died. > > I am aware of another event on the list when the solder connection at the > -12V connector to the t-Bolt failed. > > Make sure the -12V is reaching the PCB for the T-Bolt. > > Hope this helps. > > Joe > > -----Original Message----- > From: time-nuts [mailto:time-nuts-bounces@febo.com] On Behalf Of Tom Van > Baak > Sent: Monday, June 19, 2017 3:42 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] TBolt help... > > Hi Dave, > > There was one other report of something similar over the past ten years. I > did not look into it. > > Since your TBolt was part of the group buy, I'll send you a new one. > Contact me off-list. But can you double check the -12 V power supply > voltage for me? Anything between -7 and -15 is probably ok. But if it fails > it will affect the serial port. Also, if you have time, open the box and > use a 'scope on both the input (TTL) and output (RS232) of the serial > transceiver. > > Thanks, > /tvb > > ----- Original Message ----- > From: "Dave Mallery" <dave.mallery@gmail.com> > To: "Discussion of precise time and frequency measurement" < > time-nuts@febo.com> > Sent: Monday, June 19, 2017 1:16 PM > Subject: [time-nuts] TBolt help... > > > > hi > > > > My Tbolt has been running for a long time, since the final group buy. > > > > It is still running (indicated by the 10MHz output) but there is no data > > coming out the serial port. LH says so and so does my lil TSIP monitor, > as > > well as my rs-232 cable monitor/breakout devices. I have tested all the > > cables involved. > > > > If this has happened to you, were you able to isolate it further? is it > > fixable? > > > > many thanks in advance! > > > > dave mallery > > > > -- > > Dave Mallery, K5EN (ubuntu linux 16-10) > > PO Box 15 Ophir, OR 97464 > > > > linux counter #64628 (since 1997) > > > _______________________________________________ > 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. > -- Dave Mallery, K5EN (ubuntu linux 16-10) PO Box 15 Ophir, OR 97464 linux counter #64628 (since 1997) _______________________________________________ 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.