[time-nuts] TBolt help...

EWKehren at aol.com EWKehren at aol.com
Tue Jun 20 13:44:06 EDT 2017


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 at 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 at 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 at 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 at gmail.com>
> To: "Discussion of precise time and  frequency measurement" <
> time-nuts at 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)
>
>
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-- 
Dave Mallery,  K5EN                 (ubuntu  linux 16-10)
PO Box 15               Ophir,  OR   97464

linux counter #64628 (since  1997)
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