Good luck with the A7 board…
A bad A7 board is basically the only reason to ever part out an Orion.
I have three junked Orion’s and one junked Orion II. All were scrapped because
they had bad CPU (A7) boards).
This board is almost non-repairable for three reasons.
First, Ten Tec’s documentation does little in terms of letting one know what to
expect from various test points. You are left with simply looking for a clock
signal that confirms whether or not the CPU is functioning.
Secondly, the large scale SMD’s make part replacement beyond the reach of most
repair people.
Thirdly, and most importantly, is the reality that parts are virtually
impossible to find. Even if you could find parts, some of the critical ones
hold firmware that is not available to be loaded into devices.
I hope you find what you need but be prepared for a long wait…
Gary
PS: Yes, it is indeed the A9 Power Distribution Board that suffers from the
capacitor issue.
> On Jun 25, 2019, at 10:19 AM, Michael Tortorella via TenTec
> <tentec@contesting.com> wrote:
>
> Friends, a fellow ham in Italy has determined that the A7 board in his Orion
> has failed. Does anyone know of a source for the A7 board, possible repairs
> to the A7 board, or a lead to an Orion parts radio? Any help appreciated.
> 73, Mike W2IY
>
>
>
> ---
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