Telecommunications, network television and set-top boxes are connected, but no images?
4, set-top boxes and TV connected video line is not connected.Solution: re connect the box to the video line of the tv.5, the TV screen backlight plate is broken or other special circumstances.6, inside TV screen drive circuit failure caused by weld.7 、 the AD board in the TV set controls the switch of the high voltage board and the circuit is burnt out.Solution: more than 3 point to let the professional master disassemble inspection and maintenance, if television is still under warranty period, repair shop can be sent to the TV brand warranty.
Telecommunications network TV and set-top boxes connected, there is no possible cause of the image:1, the television is switched to other signal sources, inconsistent with the video signals produced by the set-top boxes.Solution: press the "signal source" key of the TV remote control and switch to the video source consistent with the set-top box.2, set-top boxes are not opened, resulting in television without images and sound output.Solution: set the set-top box open.3, the set-top box video circuit is abnormal, resulting in no image output.Solution: detect the video output circuit of the set-top box and overhaul
If the set-top box and TV boot, and normal selection of video source, the TV reported "no signal input" black screen, troubleshooting as follows:Check whether the video line between the TV set and the set-top box is securely mounted. If it is confirmed that the installation is solid, there may be problems with the HDMI line of the set-top box and very few TV adapter, it is recommended to change the set-top boxes of other manufacturers.
Now set-top boxes are all kinds of sockets, according to instructions to connect each interface, do not answer the wrong. In addition, there may be user authentication, user information can be entered into the set-top box according to the specification and authenticated by the user.
