Strange problem guys

[wiz569]

I have a motorised and fixed dish setup feeding a dm800se using a Diseqc switch,

Receiver to motor,motor to output on switch,Input A to motorised disb lnb,Input B to fixed dish quad lnb

I also have a feed from the fixed dish to another dm800se,

Lately if I'm watching anything on the motorised setup,the horizontal freq channels on the other receiver,which is fed from fixed dish wont work,signal shows as 0

Tuner setup on the motorised/fixed install receiver is set to

Advanced
LNB 2
Diseqc mode 1.2 for all the forgeign sats

and

LNB 1
Diseqc mode 1.0

Tuner setup on the other receiver is

Simple
Single
28.2E

Any ideas? Faulty Diseqc switch or LNB?

 

[installer]

Moisture ingress into 1 of the F connectors, check all joints for this, it could be that a corroded connection is restricting voltage just enough for it not be high enough to activate the horizontal side of the LNB. I have seen this many times and its usually at a joint along the cable.
Hope this helps.

 

[Abu Baniaz]

Probably switch. Bypass it and check LNBs if in doubt.