Hello Martin,
Thanks for the suggestion. My XYL was able to see a very dim display and 
change the settings which did not change the display. At this point I guess 
it is a bad LCD.

Thanks,

John  KC2QJB

----- Original Message ----- 
From: "Martin McCormick" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, November 18, 2009 10:45 AM
Subject: Re: Icom 746PRO Question


> john vernaleken writes:
>> With the little vision I have I just realized the display is dark. My
>> question is:
>> Could I have  hit a wrong button that turned it off or did it burn out?
>
> I can't give you a definitive answer on that specific
> radio, but I own an Icom ICR75 and it has a
> software-controllable back light on its LCD display. In the
> factory default configuration, this light comes on at 128 on a
> scale between 0 which is off and 255 which is full brilliance. I
> have been playing occasionally with computer control of the
> receiver under linux and have been able to change that setting.
> Since I can't see it anyway, I usually keep it off but if it is
> controllable, it can be accidentally controlled. For sighted
> users, it is a value that can be set from one of the menus so
> you might have accidentally dialed up the wrong menu and dimmed
> it out when you were really trying to maybe select a different
> filter or set one of the other parameters. I am just guessing
> but you might look in to that to see if you can get the light
> back on.
>
> Martin McCormick WB5AGZ  Stillwater, OK
> Systems Engineer
> OSU Information Technology Department Telecommunications Services Group
>