[ICOM] Icom 765

[Bruce McLaughlin]

If possible that one or more of the oscillators has drifted in frequency.  I
had a similar experience a number of years ago when after service for a
different problem 765 came back sounding pretty bad.  Using the IF shift did
improve the sound.  That suggested that the passband was no longer properly
centered in the filters.  I ended up sending it to Icom who found out that
several oscillators had drifted off frequency and needed retuning.  You may
want to have that checked.  It could be the source of the problem.  If it
is, it's easily fixed.  I would have attempted it myself had I had a decent
frequency counter at the time.

Bruce-W8FU

-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Bruce James Howes
Sent: Friday, November 13, 2009 6:27 AM
To: icom at mailman.qth.net
Subject: [ICOM] Icom 765

Hello all,

I have an Icom 765 which I picked up a few years back.
It apparently has the passband tuning mod installed, and I noted
that the audio seems somewhat tinny on SSB unless the "IF Shift" button
is depressed. When the IF shift button is depressed, the audio on SSB
sounds fine, has more mids and lows. But when turned off, these
audio freqs seem to be attenuated.
Is this normal, or an indication of something wrong with the rig?


Cordially,
Bruce W1UJR 
www.W1UJR.net

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