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@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@contesting.com] On Behalf Of Steve
> Sent: Tuesday, September 26, 2017 8:12 AM
> To: 'Discussion of Ten-Tec Equipment' <tentec@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@contesting.com] On Behalf Of Jeff
> (W4DD)
> Sent: Tuesday, September 26, 2017 4:53 AM
> To: Discussion of Ten-Tec Equipment <tentec@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@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@contesting.com] On Behalf Of Peter
> Frenning [OZ1PIF]
> Sent: Monday, September 25, 2017 5:15 PM
> To: Discussion of Ten-Tec Equipment <tentec@contesting.com>; Steve
> <sswhite@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
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> Ternevej 23
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> Denmark
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