Here is the installation procedure if you are using a SuperDish. Label the wires coming from the lnbf's so that you know which one is for 105/121, 110, 119 Make sure the receivers are connected to the sw-34 switch and that 119 is check marked on a transponder that is not being used by a Spotbeam transponder. Connect 119 and ONLY 119 into input 1 (Dish 1) input NOT connecting 110 and 105/121 to the other satellite inputs.
Once the signal is found and peaked do a software download. If you see 105 and 121 in the Signal Strength Screen you will know that you have the new software download.
Next do a check switch test and this will have the receiver detect that there is a sw-34 switch connected to the satellite receiver.
After doing that disconnect the 119 satellite wire from satellite input 1 (Dish 1) and put the 105 satellite wire onto input 1 (Dish 1), 110 satellite wire onto input 2 (Dish 2), and 119 satellite wire onto input 3 (Dish 3) on the sw-34 switch. Select transponder 4, 7, 9, or any other transponder that is valid to work on 105/121 and checkmark the 105/121 satellite in the Signal Strength Screen. Peak the 105/121 satellite in (it should already be coming in once it is connected).
Once 105/121 has been peaked tighten all the bolts down and do a check switch. 105/121, 110, and 119 should all be receiving a signal. The receiver(s) should now be ready to watch.
It is VERY important to follow these steps as indicated or the switch will not be recognized as well as 105/121 satellites. Not following these steps will cause the DP34 to not pass a switch test.
If you want to connect another satellite up to the switch instead of the lnbf's on the SuperDish then you can connect those satellite wires into the inputs of the switch according to the instructions above.
Make sure all the lnbf's are DishPro or this will not work. If the receivers are legacy then you will need a DishPro adapter for each receiver. Also make sure there is RG-6 wire rated to 2150 MHZ in order for the information to pass along the wire from and to the lnbf's, switch(es), and receiver(s).