Great Wall L223 monitor can link TV set-top box baa
if the TV screen does not appear set-top box to start the image, then just the blue screen and no text prompts, then there is a TV channel settings problems, please use the TV remote control by source or AV / TV Key, the TV from the analog TV channel can be converted to video channels if the digital TV top box does not work, the TV shows no signal, first check the set-top box before the power light does not shine, if not bright, please check the set-top box power plug is not plugged (to ensure that the socket has electricity) or check the set-top box switch turn on
But the TV radio frequency input signal line (note: not the yellow and white that three) did not receive the set-top box RF input port, or TV RF input signal line and the wall is not connected to the terminal box, or in the room where there are other open circuit
if the TV screen rafts to destroy the box to discredit the booty image and then prompted the "no signal" situation, this phenomenon proves the set-top box and the TV between the audio and video lines (red, yellow, white The connection is basically no problem
