I am having problems with 103ca satellite only. I am receiving 74 0 71 0 68 0 72 0 73 0 73 0 for transponder 9 - 16 11 -24. All other satellite 103cb, 101, 110, etc are receiving signal on all transponders. I have narrowed it down to one particular cable but cannot find a problem with the cable. The cable is transmitting a signal when I disconnect it I lose every other transponder for 103cb. The cable is working but not sending a signal for the 103ca transponders. Any other troubleshooting steps?