well surely it must be the rf amp tranny
if you have a genny trace it through the first stage, should be simple

mike

"Bo Harris" wrote in message
om...
Connector checked out ok. I bypassed the BNC and put the freq
generator on the BNC points on the IF board. Still the signal had to
be 100 microvolts to break squelch. RS does not carry the Service
Manual OR parts for the 43 any more.
Does anyone have or know someone with a damaged Pro-43 that has a good
IF board? Till then I'm still poking around...
kevcat wrote in message
...
sounds like it
a broken connection between the antenna connector and the board, is the
BNC socket also loose?, good sign

Kev

Bo Harris wrote:

Thanks Mike. I'm looking into that now. It has to be kind of simple
to
fix since the radio IS working.

mikeBNF wrote:

a common problem is the wire to the pcb from the socket twisting and
breaking the joints and the first surface mount coil going o/c or
lifting.
mike

"Bo Harris" wrote in message
...

I need a Pro-43 Service manual in a bad way. I have a Pro-2006
service
Manual i can copy for trade. If anything, I need a copy of the
schematic
for the boards. I bought a used 43 and the signal is very weak.
It's
tuned but takes a very strong signal to break squelch. It has been
bench tested to prove this.



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On 28 Oct 2004 12:03:43 -0700, (Bo Harris)
said in alt.radio.scanner:

Still the signal had to
be 100 microvolts to break squelch.

But how much to quiet the receiver to a noticeable amount, say on 150
MHz? In the tens of microvolts or around a microvolt (or less)?

IOW, is the receiver sensitivity bad, or is the squelch circuit bad?
Once you've localized that there are other tests to perform. For
instance, if it's the squelch, see if the high-pass network (usually a
cap and a resistor) is functioning.

I did a quick search on Goggle (+Pro-43 +manual) and here is one link to a
site that has Radioshack mauals to download.
http://www.mods.dk/view.php?ArticleId=873
Rich
"Bo Harris" wrote in message
...
I need a Pro-43 Service manual in a bad way. I have a Pro-2006 service
Manual i can copy for trade. If anything, I need a copy of the schematic
for the boards. I bought a used 43 and the signal is very weak. It's
tuned but takes a very strong signal to break squelch. It has been bench
tested to prove this.

Thanks for the looking but, this is not the Service Manual. I just had
a very generous person email me the PDF of the complete SM.



Rich Elgin wrote:
I did a quick search on Goggle (+Pro-43 +manual) and here is one link to a
site that has Radioshack mauals to download.
http://www.mods.dk/view.php?ArticleId=873
Rich
"Bo Harris" wrote in message
...

I need a Pro-43 Service manual in a bad way. I have a Pro-2006 service
Manual i can copy for trade. If anything, I need a copy of the schematic
for the boards. I bought a used 43 and the signal is very weak. It's
tuned but takes a very strong signal to break squelch. It has been bench
tested to prove this.

You haven't got the 2006 service manual in pdf format do you?

S.
"Bo Harris" wrote in message
...
I need a Pro-43 Service manual in a bad way. I have a Pro-2006 service
Manual i can copy for trade. If anything, I need a copy of the schematic
for the boards. I bought a used 43 and the signal is very weak. It's
tuned but takes a very strong signal to break squelch. It has been
bench tested to prove this.

I can scan it in PDF format if you like but it will be 3 megs or more.

Let me know.




Steve S. wrote:

You haven't got the 2006 service manual in pdf format do you?

S.
"Bo Harris" wrote in message
...

I need a Pro-43 Service manual in a bad way. I have a Pro-2006 service
Manual i can copy for trade. If anything, I need a copy of the schematic
for the boards. I bought a used 43 and the signal is very weak. It's
tuned but takes a very strong signal to break squelch. It has been
bench tested to prove this.

If you don't mind doing that - the 3 megs is no problem with adsl;-) and
this address will allow 10 meg
attaches.

My 2006 has the Optoscan interface and is still a much used piece of kit -
but it has the habit of going deaf after a variable amount of time switched
on - hence the need for a service manual....

Thanks!
S.
"Bo Harris" wrote in message
...
I can scan it in PDF format if you like but it will be 3 megs or more.

Let me know.




Steve S. wrote:

You haven't got the 2006 service manual in pdf format do you?

S.
"Bo Harris" wrote in message
...

I need a Pro-43 Service manual in a bad way. I have a Pro-2006 service
Manual i can copy for trade. If anything, I need a copy of the schematic
for the boards. I bought a used 43 and the signal is very weak. It's
tuned but takes a very strong signal to break squelch. It has been
bench tested to prove this.

I SHOULD HAVE MY MANUAL SOMWHERE,IS THIS WHAT YOU NEED?IF SO,LET ME KNOW
AND I CAN SCAN IT INTO A EMAIL AND SEND IT TO YOU.JUST POST A REPLY HERE
IF YOU STILL NEED. MIKE

wasn't thinking,if you need the manual that comes with the radio,just email
me and i'll get it to you.