Used to be normal, but looked at the blue screen. Turn off the set-top box and the TV, re - open it again, but in less than a minute the screen is blue again. Seek expert answers.
3. you can try each input source to see if there is a signal.If the above method is still unable to solve, you must call the local cable TV customer service phone and ask the professional maintenance staff for help.Hint, there's no need to search again.Beg for adoption!!!!!Are you satisfied with the above answer?
2, if the startup screen does not appear the images of TV set-top box, then just a blue screen and no text, that is your TV channel set there is a problem, please use the TV remote controller according to the source or AV/TV keys, the TV from analog TV channel video channel can be converted to.
Turn on the TV and the set-top box:1, if the start of the TV screen image set-top box and then prompts "no signal", the phenomenon that the audio and video lines between TV set-top boxes and you (the red, yellow, white) with basically no problem, but the TV RF input signal line (Note: not referring to the three red yellow white root) has not received the set-top box RF input port, TV or radio frequency input signal line not connected to the terminal box on the wall, or in other places you indoor circuit.