Handling of public broadcasting failure

Public broadcasting (public broadcasting), also known as public broadcasting service or public media, refers to non-profit electronic media established and operated by government budgets or public funds. Most of these media are used to produce and broadcast public policy discussions , Culture, education, art or knowledge programs, the purpose is to improve the national knowledge level and promote the people to participate in political decision-making. News media controlled by governments of non-democratic countries are generally not called public media. Although this type of TV station is also supported by government funds, these media generally lack the independence of editing and operation, and the independence of broadcast content and operation Sex is an important symbol of public media. Because of the non-profit nature, most public media do not broadcast commercial advertisements. In addition to the government, they also accept donations from individuals or groups. Some countries collect taxes and fees from users. In addition to television broadcasting, public media in some places also provide radio and Internet services.

Troubleshooting

Cannot play background music in all areas

Under the condition that the background music has been selected, the background music cannot be played. Please check whether the power supply of all the devices is normal. If the power supply is abnormal or the relevant equipment is not powered, please supply power to the relevant equipment. The background music cannot be played even after the device is powered normally. Please check if a music CD has been inserted in the audio source device. If not, insert the music CD, please insert the CD; if the CD is inserted and the audio device is also playing the CD, please contact The construction unit of the project carried out troubleshooting.

Suddenly no sound when playing background music

Please check whether the disc in the audio source device has finished playing. If the disc has finished playing, please replay it; if the disc has not finished playing and stops playing, please remove the disc in the audio source device to check whether the disc has been damaged. The background music played or the sound is intermittent during manual calls. Please contact the construction unit

No background music in a single room

There are two reasons for the failure. First, check whether the corresponding area of ​​the room is playing background music. You can see whether the background music is playing through the background music source on the keyboard of the call station. If there is no background music playing. Select the corresponding background music to play. If the background music source area is selected and the background music cannot be played in a single room, check whether the volume control switch of the corresponding room is turned on, if it is because the volume control switch is not turned on , Then turn on the volume control switch, the background music can play the background music, if the volume control switch is turned on but the background music still cannot be played, please contact the relevant engineering construction unit to troubleshoot.