After nearly four years of near perfect operation, my HR22-100 has started to act up. Last Monday I was going back and forth between two channels (CNN and FoxSports Plus AZ) and all of a sudden CNN started blocking up and dropping out with the 771 error code. First thing I did was to check for loose and/or corroded fittings, and indeed the F connectors on the BBC and IRD had all come loose. I also found a barrel connector on one of the outside coax leads was corroded. After tightening the connectors and replacing the corroded barrel and F connectors CNN and the other 99 sat channels came in fine, but now, I am loosing channels on the 103 sat, in that all of the odd numbered transponders are very now (25% or so) while the even transponders are all in the 80-90 area. This is affecting channel 220, which, if I read the map correctly, is on transponder 21 on the 103ca screen.
A self test comes up 'failed', but then as soon as I hit "OK" the channels in question snap right in, at least for a few hours. I also unplugged the IRD and when it tried to restart, it locked up with a yellow screen covered with small squares. I tried again, and this time it did complete the bootup, but the channels in question are still low (odd numbers on 103ca). The dish itself seems to be fine....no loose bolts and it is as steady as a rock. No obstructions on the dish (bird droppings, etc) and the plastic cover on the LNB is fine as well.
I guess I wonder why tightening and replacing corroded parts would fix the 99 sat but screw up the 103 bird....
Dish is a Slimline with 1 LNB and two coax leads. I am in the Phoenix AZ area and we have not any clouds for weeks, let alone any rain. No trees in the way either - a clear LOS.
Ideas? I do note that apparently there is a $50 charge for repairs, which i think is wrong! Neither my cable company or phone company charge for repairs, so I wonder why DTV does?
FYI, I spent 10 years installing big dishes (1.2 meter and bigger) but these were always aimed at one bird and equipped with Norsat LNB's to receive only one channel. When the company folded and laid me off, I got to keep everything except the spectrum anaylizer (I even have 20000 ft or more of RG6!!) so I do have some experience with sat antennas.
Thanks for any help!