art,
your youtube video says private
Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o
A man with one clock knows what time it is. A man with two clocks is never
sure.
On Mar 22, 2014, at 12:00 AM, art N4UC <n4uc@hotmail.com> wrote:
> I de-mated, cleaned, and re-seated all connectors, both the TMP coax as well
> as board connectors to the backplane. No joy, situation unchanged. Then I
> resorted to the old fashioned push and jiggle test on all the boards and
> connections. Again no luck.
>
> For what it's worth I uploaded a crude video to youtube
> (https://www.youtube.com/watch?v=287q99crPjY&feature=em-upload_owner) showing
> the problem in real life. The video begins with a cw signal being received by
> the SUB receiver and then I bring up the audio of the same signal on the MAIN
> Rcvr. Keep in mind this is happening on 20M only.
>
> Any comments or thoughts are welcomed. In the meantime, I brought the old
> TS-940 down off the shelf. I'd forgotten how heavy those old radios were!
>
> 73, Art
>
>> From: Rick@DJ0IP.de
>> To: tentec@contesting.com
>> Date: Thu, 20 Mar 2014 12:26:10 +0100
>> Subject: Re: [TenTec] Orion 565 Main Receiver Issue
>>
>> The original "pre-production" Eagles did not have gold contacts either.
>> Carl, you probably had one of these, as did Bob and I.
>> I later sent mine back to the factory and had the motherboard swapped, so
>> now I have gold contacts too.
>>
>> ALL PRODUCTION UNITS HAD GOLD CONTACTS, so if you bought an Eagle, don't
>> worry! Yours has gold contacts.
>>
>> I doubt we will ever see any non-gold contacts again from these two
>> companies.
>>
>> 73 - Rick, DJ0IP
>> (Nr. Frankfurt am Main)
>>
>>
>> -----Original Message-----
>> From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Carl
>> Moreschi
>> Sent: Thursday, March 20, 2014 1:42 AM
>> To: Discussion of Ten-Tec Equipment
>> Subject: Re: [TenTec] Orion 565 Main Receiver Issue
>>
>> Elecraft had the same problem with the K3. But they now do a free upgrade
>> to gold contacts.
>>
>> Carl Moreschi N4PY
>> 58 Hogwood Rd
>> Louisburg, NC 27549
>> www.n4py.com
>>
>> On 3/19/2014 8:08 PM, Bob McGraw - K4TAX wrote:
>>> It's not only related to Tentec products or Orion radios. For years
>>> I've dealt with service and maintenance on products costing 5X to 10X
>>> or more of what the Orion's. cost. These products have been found to
>>> have the same issues. Some interconnection methods are better or worse
>>> than others. It is a matter of cost vs. space along with a few other
>> factors.
>>>
>>> Just exercise the connectors, clean the pins and apply a very small
>>> amount of contact cleaner. It will serve you well until next time.
>>>
>>> 73
>>> Bob, K4TAX
>>>
>>>
>>> ----- Original Message ----- From: "Carl Moreschi"
>>> <n4py3@earthlink.net>
>>> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
>>> Sent: Wednesday, March 19, 2014 3:16 PM
>>> Subject: Re: [TenTec] Orion 565 Main Receiver Issue
>>>
>>>
>>>> The Orion and Orion II have shown a history of problems related to
>>>> corrosion building up on the cable connections in the radio. These
>>>> connections should have been gold plated but they are not. In
>>>> particular, the cable connections behind the front panel have over
>>>> 100 connections. Many times the solution is to remove the front
>>>> panel, which is not at all difficult, and unplug the cables, spray
>>>> them with a contact cleaner, and then while they are still wet, plug
>>>> them in and out 10 times or more to clean them. This fixed all the
>>>> intermittent problems on my Orion. And with so many connections,
>>>> almost any symptom is possible.
>>>>
>>>> Carl Moreschi N4PY
>>>> 58 Hogwood Rd
>>>> Louisburg, NC 27549
>>>> www.n4py.com
>>>>
>>>> On 3/19/2014 3:38 PM, art N4UC wrote:
>>>>>
>>>>>
>>>>>
>>>>> Here's a brain teaser for all you Orion experts. My 565 running ver
>>>>> 3.032 has developed a couple of problems that I was hoping would be
>>>>> a firmware issue but it's looking more and more like a hardware
>>>>> problem. I'm looking for some ideas about where to start
>>>>> troubleshooting.
>>>>>
>>>>> In a nutshell the two problems (which may just be different symptoms
>>>>> of one problem) are these:
>>>>>
>>>>> 1. All signals received by the main rcvr on 20M only are extremely
>>>>> garbled and distorted. This condition is not dependent on mode and
>>>>> all other receiver functions such as S-meter operation, AGC, BW and
>>>>> PBT functions seem to be unaffected. Operation of the sub-receiver
>>>>> is normal. One interesting note is that a signal disappears when I
>>>>> engage the hardware NB, which is probably just an indicator that the
>>>>> NB thinks it's seeing noise and just doing its job.
>>>>>
>>>>> 2. When both VFO's display the same frequency, there is a difference
>>>>> in received frequency between the two receivers. This is present
>>>>> regardless of band, but the difference is not the same from band to
>>>>> band. The worst I've noticed is 200 hz offset on 20M, but other
>>>>> bands exhibit 50-100 hz delta between the receivers in spite of
>>>>> displaying the same frequencies. It doesn't matter how the two
>>>>> receivers arrive at the same frequency, either by pressing the A>B
>>>>> button or configuring both Main and Sub recvrs to be controlled by
>> VFO-A.
>>>>>
>>>>>
>>>>> This all came on as an intermittent condition. I would notice that
>>>>> during operation on 20M, received signals would suddenly jump by
>>>>> 100-200 hz and I would have to re-tune to get back on frequency. I
>>>>> was assuming that the transmitted frequency was jumping as well, but
>>>>> I haven't verified that as yet. Anyway, after the "jump" occurred,
>>>>> the signals would sound warbly and quivery (technical terms for
>>>>> "trashy"). No matter their signal strength they sounded watery like
>>>>> they were coming from over the North Pole. If I were to select a
>>>>> different band and then return , the receiver would "slide" a few
>>>>> hertz back onto frequency before settling.
>>>>>
>>>>> I have
>>>>> sometimes noticed that just before this would happen there would be
>>>>> a rise in noise level, like precipitation static. While the rcvr is
>>>>> off-frequency, there is a lot of noise/hash that is in sync with
>>>>> other signals some as far away as 50 khz. It resembles being at
>>>>> field day in close proximity to several transmitters. Even though
>>>>> they are way out of the bandpass of the filters and too far away to
>>>>> hear a cw tone, I can copy them by listening to the hash.
>>>>>
>>>>> I have re-flashed the firmware and performed a few master-resets,
>>>>> etc... with no change. The problem is no longer intermittent and I'm
>>>>> looking for ideas while I decide how much $$$ I want to put into
>>>>> repairing a really fine, but old, radio.
>>>>>
>>>>> 73, Art/N4UC
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TenTec mailing list
>>>>> TenTec@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/tentec
>>>>>
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>>>
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