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ok explain a little more please. Make sure U have the coax coming from the Dish (outside) going into the back of receiver where it says SAT in. or if it is a dual tuner (ie: 322 etc) make sure the coax in hooked up to the Separator. also make sure u are using the correct dish and lnb to match ur receiver. I ALWAYS do a "check switch: every time I hook up to a new/different dish just to make sure the receiver recognizes the LNB.
Use the menu button on the face of the receiver. Go to settings-satellite-signal strength-view signal meter. At that point, if your readings are zero, it's one of of four things: misagligned dish, defective LNB, defective cable/fitting, defective receiver.
Typically that indicates a bad LNB or connection to the LNB. Try moving the line to one of the other three ports on the LNB and if that doesn't work then you will need to replace it
Hi mfpayton with the install of the brand new receiver wealways want to make sure all connections are tight. And after all connectionsare hand tight we will need to run the Check Switch Test. It will provide thestrongest signal to your home and you will see the signal move up into the 65percent range. If after the Check Switch Test it still is a low signal we mayneed to check the connections from the Dish and LNB that is an issue we wouldneed to come out on. I will leave the link to show you how to do the CST.http://www.dishnetwork.com/SupportSection/complete-sig-loss Mike Houston of DISH Network Executive Office
The 311 receiver is normall a pretty tough machine. Getting a 70 % signal is normal, and it shouldn't fluctuate too much unless you have something like a tree or other obstacle in the way.
85% of the problems with these older systems is the LNB. I see it all the time.
My first suggestion would be changing the LNB (the eye of the dish). You say that your system is 10 years old, and there are a lot of LNB's out there that go bad over time. It may say that you are getting signal, but the quality may be so poor that the receiver may not know what to do with it.
If you have 2 LNB's (separate eyes) on your dish, then you have two singles or duals with a switch 21. I'd remove these and replace them with a Legacy Twin LNB. If you have a Twin LNB, then replace it with another Twin (especially if it has "lot" number printer in the front of it, these are notoriously bad).
I do not have an schematic for this receiver. This receiver might not use LM317 or TIP42C but a different voltage regulator, try to locate where the 20 volts line from the power supply and follow it to anywhere near the LNB tuner circuitry. This type of IC is normally mounted on a heatsink.
Lastly if you are a subscriber, give you satellite service porvider a call to get a replacement.
Signal issue generally refers to the satellite dish being out of alignment. If you have a single LNB, (one knob on your dish) you can reaim it with two people, on inside telling you your strength and you aiming the dish. If you have more LNB's, the easiest way is with a satellite signal meter, which can be expensive.
Check inside the receiver for a defective LM317 IC or a TIP42C transistor, but before that you should check for proper voltage from the power supply to that IC.
LM317/TIP42C control the switching of voltages that power up the LNB, you should be getting 14 volts for vertical channels and 18 volts for horizontal.
Good Luck.
You can try eliminating whethor or not the receiver is actually the problem by moving it to another TV and seeing if it works on one that isn't having any problems. Or moving a working receiver onto the TV to see if it will pick up signal with a working receiver. If you don't have any receivers in your house working, then odds are something needs to be serviced outside your home, like the Dish and/or LNB.
Did DirecTV actually come out to the home and troubleshoot at the site? If not, they would have no way of knowing if it's the TV or Satellite that's causing the issue.
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