Dale, If you look at the bottom edge of your new displays you notice a row of solder pads with holes. These connect to the DR-7 board with a right angle solder pin header. You will need a good iron and lots of solder wick. I have change a lot of these and usually you will need to lightly, carefully, pry the old displays away from the DR-7 board while heating the solder pads. When you install the new ones just make sure they are perpendicular to the main DR-7 board before the final soldering of all pins. There are a few bare jumper wires that get soldered as well.
73, Gary W8PU http://home.roadrunner.com/~w8pu
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