Thank you all for the reminder! I had recently put in an alkaline
battery as a temporary replacement until I could find another
rechargeable 9V battery. This evening I opened up the Paragon. Sure
enough, the battery was leaking. Fortunately, it had not leaked on the
wiring or the board, but there was some corrosion on the aluminum
chassis. It could have been much worse!
73,
Bob WB2VUF
Robert & Linda McGraw K4TAX wrote:
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@yahoo.com>
To: <tentec@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@verizon.net>
Subject: [TenTec] Paragon brains gone
Date: Mon, 02 Jan 2006 08:52:16 -1000
To: tentec@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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