[ICOM] Icom 765 Problem

[paul at w8aef.com]

Check the audio output transistors for cold solder joints.  My '765 had 
several, cold solder joints, that is.

de Paul, W8AEF

----- Original Message ----- 
From: "Bruce J. Howes" <bhowes at suscom-maine.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Saturday, October 08, 2005 2:25 AM
Subject: [ICOM] Icom 765 Problem


> 765 #2 seems to have developed a bit of a problem.
> I turned it on last night to very low audio, could hear the signals, but 
> at
> a very low level, even with the AF gain full open.
> Thinking that something may have happened to the speaker I removed the top
> cover and inspected the connector and speaker, no fault found.
> Just for good luck, and using a highly refined technique, I sharply rapped
> the chassis, BINGO, audio output full bore.
> Reinstalled the cover and she played fine for the rest of the evening.
>
> Tonight, similar problem, initial low audio, following by a good audio of
> static crackling, almost like a thunderstorm.
> I removed the antenna, static is still there.
> The received audio, AM, sounds quite nice, aside from the static.
>
> Any suggestions?
> Thought this might be a case of the PLL wax migration fault, but not sure 
> as
> the audio is clear and not distorted.
>
> Tnx.
>
> 73 Bruce W1UJR
>