Pro-64 broke
 

Scans through freqs but never picks up anything. Squelch (and audio) works.
I have had this unit for several years - bought it new. Any techs here that
can tell me what I might check?

On Sun, 28 Dec 2003 23:08:14 +0000, JimG wrote:

Scans through freqs but never picks up anything. Squelch (and audio) works.
I have had this unit for several years - bought it new. Any techs here that
can tell me what I might check?

Check for a defective antenna or antenna jack.
The center pin in the antenna could be broken off.

Another common problem is that the center contact of
the antenna jack has become disconnected internally from
the printed circuit board.
--
================================================== =======================
Bob Parnass, AJ9S GNU/Linux User http://parnass.com

"JimG" wrote in message
...
Scans through freqs but never picks up anything. Squelch (and audio)
works.
I have had this unit for several years - bought it new. Any techs here
that
can tell me what I might check?



A broken antenna lead to the pc board is a good first choice. A blown RF amp
is a second, but I believe some scanners have separate rf amps - so this
may not apply. Also the IF may be defective or some other stage - to not
allow the signal to develop to be fed to the squelch/audio. A bad crystal in
the unit that sets up the receiver could be bad. G.W.

2nd that, normal problem, there is not strain relief for the connector.
simple bit of soldering & it's fixed

mike

"Bob Parnass" wrote in message
.. .
On Sun, 28 Dec 2003 23:08:14 +0000, JimG wrote:

Scans through freqs but never picks up anything. Squelch (and audio)
works.
I have had this unit for several years - bought it new. Any techs here
that
can tell me what I might check?

Check for a defective antenna or antenna jack.
The center pin in the antenna could be broken off.

Another common problem is that the center contact of
the antenna jack has become disconnected internally from
the printed circuit board.
--
================================================== =======================
Bob Parnass, AJ9S GNU/Linux User http://parnass.com



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Thanks for the tips Unfortunately it's not the BNC connector or
connections. Must be in the receiver. :-(

JimG

"JimG" wrote in message
...
Scans through freqs but never picks up anything. Squelch (and audio)
works.
I have had this unit for several years - bought it new. Any techs here
that
can tell me what I might check?

put a piece of wire in the centre pin of the BNC socket & 'buzz' test it
through the PCB to the first component (little surface mount thingy)
i have known it not to go directly at the mounting point.

mike


"JimG" wrote in message
...
Thanks for the tips Unfortunately it's not the BNC connector or
connections. Must be in the receiver. :-(

JimG

"JimG" wrote in message
...
Scans through freqs but never picks up anything. Squelch (and audio)
works.
I have had this unit for several years - bought it new. Any techs here
that
can tell me what I might check?






---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.555 / Virus Database: 347 - Release Date: 23/12/2003