Bash2,
I have the exact same set up motor switch and LNB! I would say it might be your switch that could be the culprit since you said that it works fine going straight through with out the switch.
Have you tried each port on the switch? 1 2 3 4?
Try these options:
1. Check coax, make sure no shorts in your small jumpers
2. Try different ports on the switch
3. Make sure all connections are on the right place (easy to put something in the wrong place)
4. If you got a spare, try another switch
If you know your coax is fine, everything in the right place it is your switch that is bad and needs replaced!
FREE TIP:
NEVER have the
POWER on when switching out, adding switches or removing them. It will damage them and or your receiver.
I am not saying that you done this, I have though and killed a switch and the ultimate; killed a new Coolsat 6000 once when I thought it was turned off but was not conecting the coax to the back.
I switch the power off the back of the box before performing any changes that requires coax changes.
Another thing to try is put the coax on the other spare port C L side of the Invacom, see what that does.
If your mounting of the switch is exposed to the WX, (Looks like yours is) make sure you keep the water out of it for that will effect them! Cap off unused ports. You can find places that sells Weather Proof Boxs for just for them.
I would venture to say it is your switch that is bad.
If you got a spare one, try putting it in line and see if that works.
That is a good switch though, I never had any trouble with that brand, and I even bought another one recent for a back up just in case!
Get another switch. I would say that dude is bad!
K E V I N