Help to solve a problem on a Switch C and Ku bands

[vargf]

I have a switch for 4 dish I decide connect a motorized dish Ku-band in the #1 path and a C-band in the #2 path but, the problem present when I have
to change from C-band channels to Ku-band channels the ku-band motorized moves for example I'm whatching a C-band G3C sat but I desided to change
to IA6 ku-band channels and the I catch the signal for a 3 sec but then the signal lost what is the problem?
I use a Fortec Ultra Life receiver Ivacom Quad LNB for Ku band and Chaparral LNB for C-band.
settings
For
Ku-band 10750 ,Switch #1,USAL for motirized Anttena
C-band 5150 SL,Switch #2, on USAL,DIsecq is desactivate.

 

[Tron]

Please see my reply here:

http://www.satelliteguys.us/showpost.php?p=429134&postcount=2