Signal Problem with ODD Transponders ONLY !!!

[dhoorundher]

I have a Dish500 system with two 301s connected via a DP-34 switch. Everything had been working fine for months until a wiered problem started happening last week.

I am not receiving channels which are on ODD transponders, no matter what satellitle, both 110 and 119. Here's what I have done so far in trying to troubleshoot:

1) Took the receiver to another Dish500 system and it works fine....get all channels.....that come on ODD and EVEN transponders.

2) Swapped the DP-34 with a SW-21, got the same problem....only EVEN transponders respond.

3) Until a couple of days ago, even though the channels were not showing up, a signal check of ODD transponders would be around 120%. Since I swapped the SW-21 and now back to DP-34, I do not get any signal on the ODD transponders

4) Re-alinged the satellite.

I have read several postings on this subject and none of them point to a LNB problem, so I have not tried that yet.

Any help will be greatly appreciated.
Thanks a lot.

 

[boba]

Have you tried a switch check since you ran one with the SW-21? The SW-21 is a LEGACY switch and is not compatible with your DISH PRO equipment it won't pass half the channels.

 

[rcwilcox]

I had this problem with Legacy LNB's it was a bad LNB. Don't know if that is the case here though the SW21 is indeed legacy and won't work. Maybe you meant DP21?

 

[dhoorundher]

Thanks for your responses. My apologies...I meant DP-31. It works...and only shows channels on EVEN transponders, just like the DP-34. Everytime I would swap a switch for testing, I would always run a check switch before checking any channels.

I also checked the cabling again and everything looked fine. I even took the receiver to a SuperDish system....ran check switch and I get all the channels. Seems like many folks have got similar problems....but I have not been able to spot a solution on the 100s of posts I have already read.

Still searching.........

 

[boba]

Have you tried running a RG-6 cable directly from the LNB to a receiver bypassing any external switch?