I have: You can't access the proper leads externally. It's a PITA.
73,
Kim N5OP
On 2/10/2015 11:15 PM, Wade Staggs wrote:
*O.K. I will be the first one to ask. Has nobody figured out yet where the
positive and negative battery terminals are on this RAM Chip? Maybe I have
just ask the Stupidest Question, ever ask on this forum. I have never seen
one of these RAM Chips. Can somebody please send me a picture of an example
Chip? It just seems to me that some fine wire leads and a battery holder
with the correct voltage of batteries installed, could place an end to the
whole problem. Aw Shucks, you could even install a small solar cell
illuminated from an Ironman or Batman 7 watt nightlight ..... hi .. hi ...
This is a good question ( I Hope ) Maybe the Internal Battery shorts to
Zero Ohms? So that an outboard battery won't work? *
* As Johnny 5 Says .... Need Input !! 73 from Wade/KJ4WS*
On Tue, Feb 10, 2015 at 9:35 AM, Carl Moreschi <n4py3@earthlink.net> wrote:
The battery backed up RAM in the Omni V does not use the battery. It uses
a RAM chip with a built in internal battery that cannot be changed. These
chips were made many years ago with 10 year life lithium batteries in
them. You can possibly buy a new one but even the new ones are more than
20 years old and their internal batteries might also be bad.
The 40 meter problem is most likely the 40 meter crystal. When I had my
Omni V I found that I could adjust the trimmer on the 40 meter crystal and
make it run. I ended up with about a 2 khz frequency error on 40 meters
but it worked. My N4PY Omni V ship has a setup for recalibrating in
software and this solved my 40 meter problem. But your battery backed up
RAM chip may not be as easily solved.
Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com
On 2/10/2015 10:19 AM, gary mankoff wrote:
OMNI 5 GOES DEAD ON 40 METERS AFTER 1 HOUR AND WILL NOT HOLD MEMORY OF
LAST
FREQ USED EVEN WITH NEW BATTERY... ANY HELP WOULD BE APPRECIATED...
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--
Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP
SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
/"In theory there is no difference between theory and practice. But, in
practice, there is." //– Attributed to many people; it’s so true that it
doesn’t matter who said it./
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