[TenTec] Paragon brains gone

[Robert & Linda McGraw K4TAX]

The book says, Section 1-8  BATTERY BACKUP {regarding using a battery for 
memory and this part is underlined}, " With the POWER switch in the ON 
position, and the PARAGON operating, install the battery in the holder and 
plug the battery cable into the +9V connector located on the left rear 
corner of the large Logic Board".

My experience in repairing radios where this was apparently not done in this 
manner has been found to require replacement of the RAM chip.  Not good.

DO NOT use an alkaline in a Paragon unless you intend to clean up the 
exploded mess inside the radio.  Tentec is WRONG in giving this instruction. 
Ni-Cad works just fine.

73
Bob, K4TAX


----- Original Message ----- 
From: "C Mark Cring" <n8coo at yahoo.com>
To: <tentec at contesting.com>
Sent: Monday, January 02, 2006 4:08 PM
Subject: Re: [TenTec] Paragon brains gone


> Ken,
>
>  This happened to me once.  Did everything you described.   Replaced 
> rechargable battery, still no joy.  Then tried powering  up with out 
> battery connected -  worked fine.  Connected new  battery (while still 
> powered up) and haven't had a problem since:   even when I turn off power 
> supply a week or two it is OK.   I  would try a new battery.  I plan on 
> replacing mine again soon (it  is about 2 1/2 years old.)
>
>  Incidentally, I put my battery in a small zip-lock bag (made for small 
> parts) and brought the wires out towards the top of the rig.   Hopefully 
> if the battery ever decides to leak or something bad happen  the bag will 
> catch the chemicals and not drip down on the interior  (boards).
>
>  Incidentally, the manual I received from Ten Tec, when I purchased my 
> Paragon in 2000, says you can use an alkaline or ni-cad.  THIS IS  WRONG! 
> I almost had a disaster.  Luckily  I noticed the  battery (alkaline) 
> getting warm before I put the covers back on and  removed it.  DO NOT use 
> an alkaline in a Paragon unless you have  disabled or know the charging 
> circuit is not connected.  Otherwise  - Use ONLY a rechargable.  I called 
> Ten Tec on it - don't know if  they ever changed their manual.  I know 
> this has been mentioned on  the list before, but figure it won't hurt to 
> bring it up again.
>
>
>  73, Mark N8COO
>
>
> From: Ken Brown <ken.d.brown at verizon.net>
> Subject: [TenTec] Paragon brains gone
> Date: Mon, 02 Jan 2006 08:52:16 -1000
> To: tentec at contesting.com
>
>  I was cleaning around the shack and had the 12 VDC power removed from my
> Paragon 585 (not a Paragon II) for an hour or so. When I hooked it back
> up and turned on the 585, the controls are not working and the display
> is not there. I have tried the RESET button on the right hand side of
> the rig, and this does not fix it. I have not yet opened it up and
> checked the voltage of the 9V NiCad memory battery. It has been
> connected to 12 VDC power for a day now, and I would expect that battery
> to have recharged by now. If that battery is dead will the radio not
> work, or will there just be no memory when the radio is powered off? Are
> there any other reset methods I need to try? Hold a certain button while
> powering up?
>
> Thanks DE N6KB
>
>
>
>
>
>
>
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