Normalli, It shouldn't change on its own. Check the SET Menu options. 73 Bob Martin EchoLink Node - 55127 Please visit http://www.wan-leatonks.net. ----- Original Message ----- From: "john vernaleken" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, November 18, 2009 3:55 PM Subject: Re: Icom 746PRO Question > 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 >>