[TenTec] Save them from the dumpster
Steve
sswhite at mchsi.com
Thu Nov 16 12:05:16 EST 2017
I have a Corsair II that I am working on and am making good progress with
it. Almost up to snuff now. Rx is working pretty good, still needs a
bit of alignment. The transmitter needs help but I have donor one to
help me out there. This had been a parts unit from someone and it was
missing lots of parts but I have most all of them now. The to see these
fine radios go in the dumpster. I have a Omni D along with the External
VFO and just love that radio. I brought it back from the dead too.
I need one knob....The band switch knob is gone missing and several of
the other knobs are missing the little aluminum inserts The bandswitch
knob was used on the Corsair II and Hercules II as the band switch knob.
I could use three or four of the little aluminum inserts too if they can
be found. Want to make this unit shine again.
If someone knows where I can buy one please let me know or is someone has
one laying around I sure could use it.
Tentecs can be repaired for ever.
Steve White NU0P
-----Original Message-----
From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Jeff
(W4DD)
Sent: Tuesday, September 26, 2017 4:04 PM
To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
Subject: Re: [TenTec] Orion problems
It is heat sensitive. Try freeze mist.
On Sep 26, 2017 4:45 PM, "Steve" <sswhite at mchsi.com> wrote:
> OK, luck ran out. No more receive for some reason. I had it running
> and came in from the shop all happy and proud and when I went back out
> about
> 45 minutes later it had stopped receiving and I have not made it
> receive since. BUT, I did find a guy who has a spare Logic board that
> he is sending me. It is in unknown condition so it may be no
better....
>
> Steve NU0P
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Barry
> N1EU
> Sent: Tuesday, September 26, 2017 12:44 PM
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Subject: Re: [TenTec] Orion problems
>
> Sounds good, continued luck Steve!
>
> Barry N1EU
>
> On Tue, Sep 26, 2017 at 1:19 PM, Steve <sswhite at mchsi.com> wrote:
>
> > Some progress...It receives now!!!! You ask what did I do....
> >
> > 1. Resoldered the CPLD and DSP chips.
> > 2 Carefully cleaned the flux off of them and closely inspected them
> > with eye loop, found little hair like things across several leads
> > and also on the mutipin connectors.
> > 3. At first this made no difference using real old ver 1 software
> > that I had installed yesterday 4. Loaded up the latest Ver3
> > software and could see that it loaded correctly and I had DSP
> > software loaded correctly ( big step forward) but still no audio or
reception.
> > 5. Followed very closely to the letter the re boot procedure and it
> > worked!! Had audio and could hear stuff on 20M ssb but still a few
> > issues.
> > 6 Reloaded the software again and careful to follow the reboot and
> > it worked.
> > 7 Went to button up the front panel to the case and it quit
working????
> > Darn
> > 8 . Tried restart/reboot and now the front panel is attached to the
> > case and radio working on Rx anyway...
> >
> > So I will let it cook for awhile and see what give. I am not a fan
> > of all the connectors in this radio and not sure they area all
> > seating correctly...Connectors like this are bad and easily lead to
> > funkyfailures.
> >
> > Will let you guys know of anything else I am going to get a new
> > battery just in case the one I have is weak although it checks good..
> >
> > Steve NU0P Fingers crossed
> >
> >
> >
> > -----Original Message-----
> > From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of
> > Barry N1EU
> > Sent: Tuesday, September 26, 2017 9:56 AM
> > To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> > Subject: Re: [TenTec] Orion problems
> >
> > FWIW, the Orion seems more prone to strange internal connectivity
> > failures of one sort or another than the Orion II.
> >
> > Barry N1EU
> >
> > On Tue, Sep 26, 2017 at 10:48 AM, Barry N1EU <barry.n1eu at gmail.com>
> > wrote:
> >
> > > This issue reminds me of a conversation on the Yahoo Groups Orion
> > > group back on Feb. 16, 2014 called "Boot Failure on Orion 1",
> > > initiated by
> > > WB2NMI:
> > > https://groups.yahoo.com/neo/groups/orion565/conversations/
> > > topics/9941
> > >
> > > I think the jist of it was intermittent logic board connections
> > > and the PCB needed some resoldering and he enlisted the help of
> > > Arek
> AC2FC.
> > >
> > > Barry N1EU
> > >
> > >
> > >
> > > On Tue, Sep 26, 2017 at 9:28 AM, Steve <sswhite at mchsi.com> wrote:
> > >
> > >> One thing to remember is that I get no audio at all out. I can
> > >> turn up both main and sub rx's gain and still get no audio. On
> > >> my Omni II I can disconnect the antenna and turn the audio and
> > >> hear at least rushing noise. There is a clue here I bet. Back to
> > >> the
> radio...
> > >>
> > >> Steve
> > >>
> > >> -----Original Message-----
> > >> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of
> > >> Steve
> > >> Sent: Tuesday, September 26, 2017 8:12 AM
> > >> To: 'Discussion of Ten-Tec Equipment' <tentec at contesting.com>
> > >> Subject: Re: [TenTec] Orion problems
> > >>
> > >> Voltages are good at the A( board but I will scope them this
> morning.
> >
> > >> It has been recapped. I checked the input to the Logic card of
> > >> the both the main and sub receivers and can see them when I apply
> > >> a
> > >> 14.250 Mhz signal to the input. However, the Sub Rx input level
> > >> is quite a bit higher than the main Rx input level.
> > >>
> > >> I too am trying to find the signal path thru the logic board to
> > >> find out why the boot sequence will not see the V2 mod. The V2
> > >> Mod is one wire and two cuts. I have checked it and the mod is
> > >> there and
> > correct. .
> > >> Probably should follow the signal path from the mod to the DSP's.
> > >> The previous owner told me he woke up one morning and the radio
> > >> would no longer work...
> > >>
> > >> Steve NU0P
> > >>
> > >> -----Original Message-----
> > >> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of
> > >> Jeff
> > >> (W4DD)
> > >> Sent: Tuesday, September 26, 2017 4:53 AM
> > >> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> > >> Subject: Re: [TenTec] Orion problems
> > >>
> > >> I would start by confirming voltages on the A9 board. Also scope
> > them.
> > >>
> > >> Then confirm they are getting to the dsp's.
> > >>
> > >> As I recall, the v2 mod is a single strap, but don't recall the
> > details.
> > >> I would focus on why the cpu can't read the strap. I'll try take
> > >> a look at the schematic tonight.
> > >>
> > >> Not sure if anyone has ever pubished the boot sequence but that
> > >> would be handy.
> > >>
> > >> On Sep 25, 2017 11:57 PM, "Steve" <sswhite at mchsi.com> wrote:
> > >>
> > >> The A9 board has been updated. Since there is output from the
> > >> rcvr to the Logic board and no audio out of any kind it makes me
> > >> wonder about the DSP and CODECS on that board. I went and loaded
> > >> Ver 1 software but that made no difference either.
> > >>
> > >> Steve
> > >>
> > >> -----Original Message-----
> > >> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of
> > >> Peter Frenning [OZ1PIF]
> > >> Sent: Monday, September 25, 2017 5:15 PM
> > >> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>;
> > >> Steve <sswhite at mchsi.com>
> > >> Subject: Re: [TenTec] Orion problems
> > >>
> > >> Den 25-09-2017 kl. 22:31 skrev Steve:
> > >> > Orion 1..Battery is good too...I wonder if I can put a 14 Khz
> > >> > unmodulated signal into the DSP input (J20) and find out if
> > >> > the whole DSP chain is working..
> > >> >
> > >> > Steve
> > >> Has anybody suggested checking out the A9 board? Any of a whole
> > >> box of Gremlins can emerge from troubles there. When mine (O2)
> > >> started acting erratically I updated the thre 470uF electrolics
> > >> to lower ESR/higher temp ones, and all my troubles went away,
> > >> many other similar experiences has been related here over time.
> > >>
> > >> --
> > >> Vy 73 de OZ1PIF/5Q2M, Peter
> > >>
> > >> ******************************************
> > >> ** The day Microsoft makes something **
> > >> ** that doesn't suck is probably the **
> > >> ** day they start making vacuum **
> > >> ** cleaners ! **
> > >> ** -- Anonymous Wise Guy **
> > >> ******************************************
> > >> email: peter(no-spam filler)@frenning.dk
> > >> http://www.frenning.dk/oz1pif.htm Ph. +45 4619 3239/ +45 2332
> > >> 9464
> > >> Snailmail:
> > >> Peter Frenning
> > >> Ternevej 23
> > >> DK-4130 Viby Sj.
> > >> Denmark
> > >> ******************************************
> > >>
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