[time-nuts] pts 160 power problem

Dave Mallery dave.mallery at gmail.com
Tue Mar 15 03:32:39 UTC 2011


thanks!  will try that in the morning.

dave

On Mon, Mar 14, 2011 at 7:48 PM, Don Henderickx <wa9ylp at sandprairie.net>wrote:

> On 3/14/2011 11:00 AM, Dave Mallery wrote:
>
>> hi
>>
>> having finally acquired a stiff supply, i
>>
>> put in the requested 5.4vdc and the unit draws the specified 1.5a..
>>
>> still not working, no output signal, so back to the manual.
>>
>> dave
>>
>> On Fri, Feb 25, 2011 at 6:59 PM, EB4APL<eb4apl at cembreros.jazztel.es>
>>  wrote:
>>
>>  Hi,
>>>
>>> Since this thread is about a PTS repair, I think this is not too much OT.
>>>  I need the manual for my PTS 040, I already have one for the 160 from
>>> Didier's site and while both models are similar end employ most the same
>>> modules, I would like to have the specific one for my model.
>>> According to PTS web site this model is still on production, but I think
>>> that asking PTS for one would cost me much more than I paid for the real
>>> thing.
>>>
>>> If anybody knows were I can get one I'll appreciate very much.
>>>
>>> Regards,
>>> Ignacio, EB4APL
>>>
>>>
>>>
>>> El 26/02/2011 0:27, J. Forster wrote:
>>>
>>>  That depends on the phase of the moon and your religion.
>>>>
>>>> Sometimes low-ESR aluminum; other times good Tantalums (150D or CS-13s)
>>>>
>>>> No two people agree on this issue.
>>>>
>>>> -John
>>>>
>>>> ==============
>>>>
>>>>
>>>>  thanks everyone.
>>>>
>>>>> i found a cache of tantalum caps in the output amp module.  also, there
>>>>> isn't any output any more.
>>>>> struggling to get all those @#@ screws out so i can get to them.
>>>>>
>>>>> should i find new tantalum caps, or is there a better substitute?
>>>>>
>>>>> dave
>>>>>
>>>>> On Fri, Feb 25, 2011 at 11:29 AM,<GandalfG8 at aol.com>   wrote:
>>>>>
>>>>>  In a message dated<25%2F02%2F2011%2017> <25%2F02%2F2011%2017>25/02/2011
>>>>> 17:13:01 GMT
>>>>>
>>>>>  Standard Time,
>>>>>> dave.mallery at gmail.com writes:
>>>>>>
>>>>>> i tried  another more robust 5v supply, but that goes to 4.5v and ng
>>>>>> output.
>>>>>>
>>>>>> i  removed each of the plug-in decades, one at a time, looking for the
>>>>>> guilty
>>>>>> one.  no joy.  i also removed the left rear module (uses  5v).  the
>>>>>> other
>>>>>> two
>>>>>> modules only use 12v. which is fine.
>>>>>>
>>>>>> has  anyone been here before?  could it be a problem in the backplane
>>>>>> (a
>>>>>> work
>>>>>> of art, btw)?
>>>>>>
>>>>>>
>>>>>>
>>>>>> ---------------
>>>>>> Hi Dave
>>>>>>
>>>>>>
>>>>>> I've used quite a few of these and have never yet experienced an
>>>>>>  actual
>>>>>> component failure, obviously not saying it can't happen just that
>>>>>>  once
>>>>>> sorted
>>>>>> yours should remain pretty reliable.
>>>>>>
>>>>>>
>>>>>> As John already suggested I'd also look for possible fautly tantalums
>>>>>> or
>>>>>> other capacitors across the supply but would also suggest removing all
>>>>>> the
>>>>>> modules from the motherboard at the same time before proceeding any
>>>>>> furter
>>>>>> and checking if the symptoms still persist.
>>>>>> I know what you've done has probably eliminated the modules but it
>>>>>> would
>>>>>> be a shame to tear into the backplane if you just happened to have
>>>>>> more
>>>>>>  than
>>>>>> one faulty module.
>>>>>>
>>>>>> I did once receive a previously working PTS160 by post that refused to
>>>>>> play
>>>>>>  and eventually located a very small solder blob, presumably  from
>>>>>> inside
>>>>>> the associated module, that had dropped into an edge  connector and
>>>>>> wedged
>>>>>> between a couple of pins, that was fun:-)
>>>>>>
>>>>>> If you haven't already found it there's a manual for the PT160 on
>>>>>> Didier's
>>>>>> site.........
>>>>>>
>>>>>> _http://www.ko4bb.com/cgi-bin/manuals.pl?dir=05%29_GPS_Timing/PTS_
>>>>>> (http://www.ko4bb.com/cgi-bin/manuals.pl?dir=05)_GPS_Timing/PTS)
>>>>>>
>>>>>> regards
>>>>>>
>>>>>> Nigel
>>>>>> GM8PZR
>>>>>>
>>>>>> _______________________________________________
>>>>>> time-nuts mailing list -- time-nuts at febo.com
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>>>>>> and follow the instructions there.
>>>>>>
>>>>>>
>>>>>>  --
>>>>> Dave Mallery, K5EN                 (ubuntu linux 10.10)
>>>>> HC31 Box 99E;                   Williamsburg,  NM  87942
>>>>>
>>>>> no gates...
>>>>>   no windows!
>>>>>     free at last!
>>>>>       linux counter #64628 (since 1997)
>>>>>
>>>>> "People aren't as dumb as Microsoft needs them to be."
>>>>> --PJ, May 2007
>>>>> _______________________________________________
>>>>> time-nuts mailing list -- time-nuts at febo.com
>>>>> To unsubscribe, go to
>>>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>>>> and follow the instructions there.
>>>>>
>>>>>
>>>>> Hi:
>>>>>
>>>> Just a thought. I have not run my pts 160 for some time but I recall
> that it would loose output if run unterminated for any length of time mine
> is a 50 ohm imp output I think there were some  75 ohm also. If left off for
> a short time and then terminated it 's output would return and continue.
>
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>>
>>
>
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-- 
Dave Mallery, K5EN                 (ubuntu linux 10.10)
HC31 Box 99E;                   Williamsburg,  NM  87942

no gates...
  no windows!
    free at last!
      linux counter #64628 (since 1997)

"People aren't as dumb as Microsoft needs them to be."
--PJ, May 2007


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