A common alignment error. I went all through this same fire drill when I put up my 1000.2 dish.
The dish is swung about 9.5 degrees to far to the left (the approximate distance between sats) as seen from facing the REAR side of the dish. This is making 110 come in through the 119 LNB, and 119 come in through the 129 LNB. And yes, each LNB can pick up any of the 129, 119, 110 sats.
Firstly, re-read these steps completely three times before starting. They will seem less complex as you re-read them.
Before starting, take the dish off the mast and make sure that it is absolutely plumb! Get a "torpedo" bubble level from the hardware store (just ask, they'll know what that is) that has a magnetic strip on one side. Magnetically attach the torpedo level vertically on the mast at 90 degree point around the mast. Make sure the bubble perfectly between the lines for all of the 90 degree points. Use the bolt adjustments to fix any leaning in-or-out error. Any left-or-right errors may need re-seating the mast base.
Bottom line, that mast must be perfectly plumb (vertical) to achive proper alignment.
Place the dish back onto the mast, and tighten the azimuth clamp just enough so that you can still easily move the dish by grabbing the outer edges of the dish, but so that the dish can't move on it's own. Also, not so tight that you warp the dish when moving with the outside edges. The elevation adjustment can't be so easily tightened to slip up and down with moderate pressure since it tends to just fall down when even slightly loosened. You will end up repeatly loosening and tightening the elevation to adjust it.
As others have said, cover the left and right LNB wih tin foil, leaving the middle one uncovered (again, facing the REAR of the dish). Use the pointing values from the 1000.2 manual to start finding 119. If you do find 119, then you know that it's coming through the middle LNB. This is what you want. If you find 110, the dish is swung too far to the left (again, facing the REAR of the dish). If you get 129, the dish is swung too far to the right.
If you can't find 119, try adjusting the elevation up or down a couple of degrees at a time. I have found at least three instances were the elevation values stamped on the 1000.2 dish was mis-stamped by up to 5 degrees. Once you find 119, tweak the elevation and azimuth until you get best 119 signal.
Bottom line though, you MUST get 119 with the middle LNB, or you'll NEVER get proper alignment!
Tip: When adjusting the elevation or azimuth, NEVER adjust both at the same time! Always adjust azimuth left and right until the highest signal is achived, then lock it down. Then adjust the elevation up and down until the highest signal is achived, then lock it down. Repeat this process, re-loosening the elevation or azimuth until adjustments in both achive no higher signal strengths.
Next, uncover both the left and right LNB, leaving ALL LNBs uncovered. Now use the dish pointing screen to see the signal strength of 110 and 129. If you don't have one or both, unlike what the 1000.2 instructions says not to do, rotate the dish skew a couple of degrees clockwise or counterclockwise. If you only have 110 or 129, and when you rotate the skew it goes away, the rotation was the wrong way. tweak the skew until you get the best COMPROMISE bewteen a highest 129 and 110 signal.
Now restest the signal strength 119. If it got a bit lower than you first got, re-tweak the elevation and azimuth until you get the highest signal on 119.
Now retest the 110/129 skew peaking.
Repeat hese last two steps until you find no substanial changes in signal values from all three sats (this may take two to three trips through these steps at best, or a dozen times at worst). Once you're done aligning, lock down all of the adjustment bolt tightly. Then retest the signal strengths of ALL three sats one more time. If any one of them changes by much, the act of tightening the bolts moved the dish alignment. Loosen the bolts slightly in succession to figure out which ones moved the dish, and compensate that adjustment.
Be prepared to spend an hour or two doing this alignment. Be patient. This may seem like a lot of work (and it is!), but this will provide the best alignment.
Tip: The 129 sat is sick. It's signal streangth is weak and wobbles slightly in the sky. This means it's signal strength is low compared to 110 and 119, plus the signal strength goes up and down slightly depending the time of day. If you get a lot of signal drop outs when watching TV, try re-tweaking the dish skew for a higher 129 signal; even at the expense of 110. 110 has a lot more signal power to spare. Make sure the any skew adjustments didn't effect 119.
Good luck.
