[ICOM] IC-761 trimmers

[W8AEF]

Removing the covers is the hardest part of the whole job.

I removed my covers by useing a small screw driver to pry up on the cover as 
I heated the solder.  You may have to go around the cover with heat/prying a 
couple of times before the cover will pop off.

Replacing the cover is not a problem, just put the cover in position and 
re-heat the solder.

de Paul, W8AEF

----- Original Message ----- 
From: "Vladimir V. Sidorov" <ve3iae at rac.ca>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Saturday, August 19, 2006 2:26 PM
Subject: [ICOM] IC-761 trimmers


> Hi all,
>
> Got a question to people having practical experience in replacing PLL
> trimmer capacitors in the IC-761 (or similar).
>
> The matter is, I tried to replace them myself. Having the box partially
> disassembled I found out, the trimmers are installed under a shielding 
> cover
> firmly soldered on to the PLL board at several places and waxed along.
> Besides, there is another flat shield repeating the cover shape soldered 
> to
> the bottom of the board at several places, too. Apparently it is not that
> easy to remove all the covers to get an access to the trimmers. And it 
> won't
> be easy to install them back afterwards... Therefore I've got a few
> questions to experienced people.
>
> --- Is it in principle possible to do this procedure at home? Maybe I have
> to look for a dealer having necessary equipment to do so?
>
> --- Am I just too scared by that and the procedure is not that 
> complicated,
> just some know-how is only missing? If so, how to approach it better? 
> Should
> I simply start trying to unsolder the whole covers point by point, or
> perhaps the shield's top cover can be unsoldered from the side walls?
>
> --- Anything else?
>
> TIA,
>
> 73,
>
> Vladimir VE3IAE
>