I have the Motorola DC6400 Phase III STB. I bought this box instead of renting as I got a great price on it. I mention this because the tech said he couldn't swap out the box or work on it as it was not a rental. Anyway, recently I have not been able to access channels 715, 718, 719, 720, 741, 743, 745, 746, 752, 754, 755, 757, and 767. Today, I noticed 753 and 761 are heavily pixelated and look like they are on their last legs.
I called Cogeco service to come have a look and the tech said the feeds seemed okay. I have a history of lesser than good signals coming into my home as I was told we are the last one on the service line/furthest away from where the source is, whatever that means. They installed an amplifier many, many years ago and did put in a new cable underground because of this issue. He mentioned that I'm losing dBs of signal strength because of the physical setup of the cable coming into my home. The tech did a visual of the amp and said it was okay. Trust him, after all what do I know?
So, we sort of came to the conclusion that the STB is the issue. The channels in question are received by other TVs in the house and I tried a STB from another TV as a replacement and it worked fine.
So, is this box done or is there something that can be done to restore its powers? It doesn't owe me anything and has max resolution of 1080i so it is soon to be outdated anyway but I still have a use for it if it can be saved.