HP Forum Archive 15

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9100 display annotation plate backlit? Message #1 Posted by marais on 12 July 2005, 4:33 p.m. I don't own a 9100 (to my most sincere regrets), so I have to find the answer to my curiosity here: In pictures of the 9100, it often seems to me that the plate right to the display with the lettering "x-keyboard, y -accumulator, z-temporary" is backlit. Is this true or just due to the photographs? I have a 9810 with the same lettering, and it's definitely not backlit. Just for curiosity - Andreas (and if yes, what about the model B, would be the next question)

Re: 9100 display annotation plate backlit? Message #2 Posted by Rick Bensene on 13 July 2005, 1:17 a.m., in response to message #1 by marais The annotations are indeed backlit, on both the 9100A and 9100B. Rick Bensene The Old Calculator Web Museum http://oldcalculatormuseum.com Beavercreek, Oregon

Re: 9100 display annotation plate backlit? Message #3 Posted by David Smith on 13 July 2005, 3:59 p.m., in response to message #1 by marais There are two small 2-pin 15V incandescent bulbs stuck into a plastic housing behind the display panel. These bulbs tend to have the bases break off or the part of the plastic housing that they stick into likes to crack.

Re: 9100 display annotation plate backlit? Message #4 Posted by David Smith on 13 July 2005, 4:00 p.m., in response to message #3 by David Smith Also, the silk screened display legend tends to wear and flake off.

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