For the last 15 days, There was "No signal" message on many of the Tatasky channels. Frankly speaking, pathetic service by customer care. Finally, today a technician came with Digital signal finder and two spanners. Saw the signal, went up to the disk, opened some bolts and set signal tester between lines and saw signal quality and set disk such that signal quality sets above 75. Done, they took 200/- for this 5 minute solution. An idea stuck to my mind, why to pay every time when we get "No Signal"? let us set a method in which way you yourself can solve the "No Signal" problem. These are the indications that you have to realign the disk. 1. "No Signal" message. 2. Check out signal quality if you find the above shown "No Signal" message. If your signal quality is less than 75, you are in need of realignment of disk. Thing you need for realignment are: Wrench or Spanner . these Digital Signal Finder.