[ICOM] IC-746Pro Audio/Receiver Cut Out Issue

[Bill]

I had a similar problem and it turned out to be a bad connector to the 
external speaker. Are you using the internal or and external speaker?
Bill

On 11/15/2016 10:15 PM, Mark K3MSB wrote:
> Hello All
>
> Our club's 746Pro is having an issue.   The following was written by one of
> our members:
>
> "I had problems with the Icom-746PRO again this past weekend during the WAE
> RTTY contest.   The radio and station worked flawlessly for a couple of
> hours and then the audio suddenly started dropping out (as described at the
> last meeting).
>
> I checked all radio settings and disabled anything (i.e. NB, squelch, etc)
> that could potentially cause the receive to cut/drop out.   Nothing made a
> difference.
>
> I made a couple of video recordings which I posted on the club's  website
> <http://www.qsl.net/w3zgd/>.  Click on the "Links" tab (bottom of the left
> panel) and scroll to the bottom of the page.  There are two recordings, 9Mb
> and 14Mb, which will likely take a couple minutes to download to your
> computer.   You probably only need to download one of the files to get a
> idea of what is going on.
>
> Both videos begin with no sound after the radio cut out while monitoring a
> S9+ signal from Europe.   In each recording, I pressed the PTT
> button on/off to switch the radio from RX to TX and back which seems to
> consistently bring the receive back -- sometimes for a few seconds (as in
> these recordings) and other times for a few minutes.   While the audio
> level in the video is not great, you can see the strong signal strength on
> the meter which lasts for a couple of seconds and then fades out.    The
> fade out is not from the station stopping their transmission -- it's simply
> the radio receive fading to zero on its own."
>
> Comments welcome
>
> 73 Mark K3MSB
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