On Mon, 23 Aug 2004 16:59:47 -0400, "L."
wrote:

I'm not real familiar with that unit, nor do I have a schematic for it.....
There are reference crystals in there, perhaps one of them went bad. I DOUBT
that unit has a lithium memory cell in it, but if so, maybe it is bad. Does
it show in scanning or manual mode, any frequencies you've had stored in?
Don't depend JUST on NOAAs transmitter as a test.. Though it should be a
good one, they may be having a problem or there could be something impeding
the signal to you from them. Case in point, our NOAA tx used to come in real
well. As of late, it doesn't. There are spotty areas that weren't there
before.
So, try a local frequency.... as a secondary test. As the gentleman stated,
your antenna connections "may" be bad.Then too, the RF Amp or IF amp could
have went bad. Things do happen when not in use. Could be bad solder joints,
bad caps, bad crystals... etc.

L.

"Fred Burgess" wrote in message
. com...
juny wrote in message
...\
I used to have a Pro - 37, and I had problems with corrosion at the
antenna base,( in side the scanner at the place that the wires that
connect to the circuit board) and also corrosion on the pins where the
two circuit boards attach to each other. The local FM maybe
"overloading" your scanner "front end", this causes distorted
reception, but no reception of the frequencies that you are tuned to.
Are you still getting a frequency readout on the LCD? So try to see
if you have any corrosion (like I had). If you do not want to take
the scanner apart yourself, you may be able to get a radio repair shop
to do it. If no corrosion is found, then maybe someone else on this
newsgroup can help with better suggestions.
Fred Burgess
Anyone out there help with suggestions?

All I get is some bleed-over from an FM broadcast station. Cannot
even get NOAA weather (162.40), where their tower is on top of
adjacent mountain, maybe 2 to 3 miles away!

Did my front-end die or what?

NG on local HAM repeaters either. I always was able to get both with
mo problem!

I did reset with internal button, before that nothing would come on at
all (and yes I have fully charged NIHM's installed (is the NIMH
voltage too low?)

Also tried 9V wall wart, bleed-over came in stronger. It almost seems
that the frequencies are gone.

Thanks guys,

I have opened the unit up (thanks to disassembly instructions for a
mod that I found when doing a "Google" for the unit) and everything
looked OK as far as no corrosion as far as I can determine.

There are no programmed frequencies left after doing a "reset" with
the internal reset button, however I was able to program some
frequencies (including the NOAA ones) into the unit. I tried scanning
and nothing caused the scanner to stop on a station, which is VERY
unusual.

By the way, I have a NOAA (Midland) emergency radio - including
regular weather forecasts - in the same room and it is OK, no problem.

This leads me to believe that the frequencies that I see are NOT the
actual frequencies, otherwise I should get something (I would think).

Maybe a crystal is bad (there are two on the top board) but I do not
have a schematic, but a parts list is available through Radio Shack.
Not sure where the parts are available from, especially in ones or
twos. Parts places usually want to sell 25 or more at a time.

I hate to take it back to the "Shack" and have them tell me that parts
are no longer available, OR that it will take a bank loan to afford
the repairs!

Thanks for your suggestions fellows, maybe someone can recommend a
good repair person who doesn't charge an arm and a leg to look at it.
I am retired and must watch where I allocate my retirement monies - of
course that is true even if you are still working!

I was unable to check for replies until now (busier that when I was
working), so my reply is a little late to both of you. As I said,
thanks for the recommendations.

juny