[ICOM] IC-765

[Tim Duffy K3LR]

Hi Mike:

I have three IC765s and have observed the same problems in the past. 

Most of the issues with the 765 like this are the result of poor solder
joints on the suspect PC board. Many of the problems I had were cured with
re-soldering joints on the boards (the ones responsible for the circuit in
question).

This solder joint problem was real bad on the Kenwood TS940 series of radios
and even some TS930. Take a look at the PC boards in your 765 and you will
see for yourself where bad solder joints are.

One of the problems during the time the 765 was built was the quality of the
solder used (recovered solder) in Japan for wave soldering.

The 765 is still one of the VERY best performing (non DSP) radios around.

73!
Tim K3LR 

100% Icom station
http://www.k3lr.com



-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of w9mws at aol.com
Sent: Tuesday, November 11, 2008 10:55 AM
To: icom at mailman.qth.net
Subject: [ICOM] IC-765

I just acquired a 3900 S/N IC-765 as a second radio.  So far it's 
working well and I'm enjoying it.  There are a couple of small issues, 
that I can't find any reason for, that perhaps someone on the list can 
shed some light on:

Approximately 60% of the time when I power on the radio the audio is 
"muted".  It's like the T/R relay is in the mute position.  If I punch 
the 14 MHz button on the keypad and then go back to the original band, 
audio is back to normal.

The other oddity is the display which seems to be "dimmed" a bit.  Each 
display section has segments with a "bright" portion and a "dim" 
portion and comparing it to a friends radio, mine display is visibly 
dimmer on both the white and red display elements.  With no reference 
to display dimming in either the owners manual or the tech service 
manual, I'm not sure what I have.

Thanks for any help from the group.

73, Mike W9MWS
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