Sight target needs adjustment
I also had the same problem my Yardage Pro Compact 600. We live in the desert and I often leave my golf bag in the trunk of the car. One day the display on the rangefinder was shifted up so I assumed that the heat affected something. After checking with Bushnell, their answer was to ship it in and couldn't guarantee a cost.
So I also peeled back the rubber grips from the bottom - you only need to go far enough to unscrew the four screws. From there you have to snap apart the case so the top shell comes off (be sure to remove the battery and cover first). Once you've done that, unscrew the top circuit board (mine only had 2 of the 4 screws from the factory). Be careful not to unplug any of the 3 ribbon cables.
Move the top circuit board aside. Looking from the top front, there is an assembly at the back that holds the laser/reader, it is held in by 3 screws, 2 on the back left and 1 on the back right - remove them. Carefully remove the assembly leaving the 2 ribbon cables in tact. The 3rd (largest) ribbon cable is taped to the center sighting barrel. Gently remove the tape, the ribbon cable disappears into a **** in the back of the sighting barrel near the eyepiece, it is connected to the LCD display. Now flip the unit around and looking from the back eyepiece, remove the 2 screws near the ribbon cable. Now you should be able to lift the eyepiece up and away from the sighting barrel.
The ribbon cable and LCD window at the end of the cable should be glued on two corners inside the eyepiece (worse case the LCD is loose as mine was because the glue had deteriorated). First scrap out the old glue from the LCD and eyepiece frame, being careful to not let the remnants drop inside the eyepiece or you will see these in the viewfinder once you get it back together!
Using thick superglue and being careful not to touch the LCD and leave a smudge (or forget how it came out as your yardage display will be backwards!), put a tiny drop of glue on each lower corner of the eyepiece frame. Now carefully position the LCD window and push down to the bottom of the eyepiece frame. Try to center it left to right as near as possible (mine had a little gap on each side) while holding the LCD against the bottom edge. Keep it there until the glue dries.
Now reassemble everything, making sure the sighting barrel and especially the laser/reader assembly fits snugly in its cradle before reinstalling the 3 screws, then install the top circuit board. Snap the top cover back on and before putting the 4 cover screws in, put in the battery/cover and test it. Remember if your display is reversed you installed the LCD backwards! Read More At : Yardage Pro 600 Rangefinder...