方法如下:
设备:海信TV、机顶盒
系统:安卓v8.21
1、打开电视和机顶盒后,如果电视屏幕出现机顶盒的启动图像,并随后提示没有信号的情况下。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/5d6034a85edf8db1c43034f41b23dd54564e7407?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、电视没有接到机顶盒RF输入端口上。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/500fd9f9d72a6059e40fa98a3a34349b033bba07?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、或者电视射频输入信号线没有和终端盒连接。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d8f9d72a6059252d16085594269b033b5bb5b907?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、如果电视屏幕是蓝屏并没有任何文字提示。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/d62a6059252dd42aeb16493b113b5bb5c9eab807?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、请用电视机的遥控器按信号电源键或AV、TV键。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/4ec2d5628535e5dd1e33ed4f64c6a7efce1b6207?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、将电视机从模拟电视频道转换至视频频道即可。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/7aec54e736d12f2e4a1ae6f05dc2d56285356807?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、可以把每个输入源都试一下,看看有没有信号。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/242dd42a2834349bc6192615dbea15ce36d3be07?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
8、如果上述方法仍无法解决,必须致电当地有线电视客服电话,请求专业维修人员给予帮助。
![](https://video.ask-data.xyz/img.php?b=https://iknow-pic.cdn.bcebos.com/6159252dd42a2834f0b97e9b49b5c9ea15cebf07?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
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