[TenTec] Omni VI Help

[Jim Goudie]

Dave...

I recently had two Omni VIs apart... both with problems back in the area around the PA.  A couple more thoughts for you...

The DC Input board that is tucked in back there...  I found several bad solder joints on that board, plus a bad 1000 uf 25v cap and a sticky relay.  It's a fairly simple board, once you get to it.  I'd recommend checking that out, after doing testing to see if the problem is in the PA by removing the large red wire that supplies power to it.

On the other rig, the driver transistors were bad, on the same board with the finals.  Mine were open... but who knows.

Good luck and have fun!
Jim, AF3Z


On Jun 16, 2014, at 3:52 PM, DAVID wrote:

> Hi Barry, DC connector looks to be factory wired with heat-shrink tubing so looks OK. 
> I did check the voltages at that connector and they looked fine, but thanks for the thought. 
> 
> Dave K9UX 
> 
> ----- Original Message -----
> 
> From: "Barry N1EU" <barry.n1eu at gmail.com> 
> To: "List, Ten" <tentec at contesting.com> 
> Sent: Monday, June 16, 2014 8:09:28 AM 
> Subject: Re: [TenTec] Omni VI Help 
> 
> Are you sure the dc connector (white 4-pin molex) on the power cable is 
> properly wired? 
> 
> Barry N1EU 
> 
> 
> On Mon, Jun 16, 2014 at 11:02 AM, DAVID <k9ux at comcast.net> wrote: 
> 
>> Hi everyone. I need some advice on an Omni VI I picked up at an estate 
>> sale. It's a nice looking rig, loaded with filters, but 
>> it will not power up. It is shorting the DC voltage to ground it appears. 
>> Took it to a friend's house and hooked it to an Astron 
>> 30 amp supply and the voltage dropped to zero!! Darn!! 
>> So can anybody give me some advice as to what to look for or should I just 
>> bite the bullet and send it to Ten Tec?? 
>> 
>> Thanks in advance, Dave K9UX 
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