[TenTec] Titan 425 Amp

Ron Castro ronc at sonic.net
Fri Dec 24 10:37:18 PST 2010


Steve:

Do the fuses blow when the HV cable is disconnected from the back of the RF 
deck?  That would isolate the problem either to the power supply or the RF 
deck.  If you have already checked the transformer, diodes and filter caps, 
then check the "dead man" shorting bars in the power supply and RF deck as 
well as the HV connectors.  Take a look at the board in the RF deck with the 
meter dropping resistors...I had a capacitor there short to the chassis once 
in mine, but it made a loud bang and some smoke.


            Ron  N6IE
       www.N6IE.com

----- Original Message ----- 
From: "Steven Stepansky" <sstepa at verizon.net>
To: <tentec at contesting.com>
Cc: "Joe Stepansky" <kq3f at comcast.net>
Sent: Thursday, December 23, 2010 5:58 PM
Subject: [TenTec] Titan 425 Amp


> Hello all,
>
> I'm working on a Ten Tec 425 amp that blows both 20 amp line fuses and the 
> 240
> volt outlet breaker. I've gone through the power supply in detail, 
> inclusive of
> replacing the transformer. I've noticed that it will blow both line fuses 
> and
> the outlet breaker once the interlock switch on the back of the supply 
> that
> feeds the orange wire to the amp is engaged. But everything I check on 
> that
> orange line seems to check OK.
>
> Any advice would be greatly appreciated.
>
> Thanks,
>
> Steve
> KC3WX
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