[TenTec] Orion II - Power up problem - Fixed

[Tim Heger]

Thanks to all for the many responses and suggestions on the problem I was 
having with my Orion II.
The problem is now fixed, and just wanted to provide an update here.  I 
talked to the folks at Ten-Tec, and they first sent me two capacitors to 
replace C6 and C7.  After replacing, I still had the same problem (5V 
cycling on and off).  Then talked with Ten-Tec again, and they sent me a 
complete new Power Distribution Board - A9.  I replaced the original board, 
and all works fine now.  Sorry, I don't know what exactly was wrong on the 
bad pwr board.  I have mailed it back to Ten-Tec.  The capacitors C6 and C7 
on the new board were still 470 uF - 16V, but they were larger than the ones 
on the old board.
Thanks to all here, and to Ten-Tec Service for the help with this problem.

73, Tim - N3XX

----- Original Message ----- 
From: "Tim Heger" <n3xx at charter.net>
To: <TenTec at contesting.com>
Sent: Sunday, November 04, 2007 7:23 AM
Subject: Re: [TenTec] Orion II - Power up problem - Update


> Thanks to all who responded with suggestions on what to look for.
> I have checked the Power Distribution Board, and found that the +5V on JP2
> is cycling off & on at the same rate as the xcvr cycling off & on.
> Have emailed Ten-Tec Service, and waiting for a reply, probably sometime
> after the weekend.
> I'm hoping they will send a new Power Distribution Board to replace this
> one, but they may still want the xcvr back to look at under warranty. 
> Will
> see when I hear back from them.
>
> Tnx & 73,
> Tim - N3XX
>
> ----- Original Message ----- 
> From: "Tim Heger" <n3xx at charter.net>
> To: <tentec at contesting.com>
> Sent: Saturday, November 03, 2007 7:43 AM
> Subject: [TenTec] Orion II - Power up problem
>
>
>> I'm having the following problem when I try to power on my Orion II:
>> After turning on the power switch, the xcvr cycles at about once per
>> second, continuously from power on to power off for as long as I leave 
>> the
>> power switch turned on.
>> For a fraction of a second, the alc light and meter light come on then go
>> back off in sequence with the power cycling.  Also, as the lights go on &
>> off, I can hear the relay operating in my amplifier.
>> With all cables disconnected from the xcvr except the power cable, the
>> on/off cycling still happens.
>> I have measured the pwr supply voltage at 13.9V, and also tried another
>> power supply known to be good.
>>
>> I have had the xcvr for less than 1 year, so it's still under warranty,
>> but trying to avoid sending it back to the factory.
>> Has anyone on the list had the same problem?  Or have an idea what might
>> be the cause?
>>
>> Tnx & 73,
>> Tim - N3XX
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