[ICOM] 775 DXII S-meter lamp / cooling fan noise

[paul at w8aef.com]

There is a modification at www.mods.dk re the lamp flickering.

de Paul, W8AEF

----- Original Message ----- 
From: "Maciej Wieczorek" <mw_comercial at wp.pl>
To: <ma.locksmith at juno.com>
Cc: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Monday, January 23, 2006 1:42 PM
Subject: Re: [ICOM] 775 DXII S-meter lamp / cooling fan noise


> Ed and others,
>
> Last weekend I've done some more tests. The lamp flickers mostly on CW 
> when power output exceeds 50W, but it's also happening on AM/FM. For the 
> moment, to ged rid of this I simply increased a bit the brigthtness for 
> the LOW position and the problem is almost gone.
>
> Unfortunately I've found another bad point in my IC 775, seems that the 
> cooling fan which starts with PTT (while transmiting) is not filtered 
> enough and makes some noise which can be heard on SSB... I was really 
> surprised when it appeared that after disconnecting the microphone the 
> noise is still there and can be easily noticed in local distance QSO.
>
> Has anyone ever had this kind of problem?
>
> 73's
> Mac SP2XF