14
音乐无功能
no music
①、端子接触不良
The terminals and wires are
poorly connected
②、检查端子是否有 24V 输出
The output voltage is not 24VAC
③
检查喇叭是否损坏
The loudspeaker OK or not
④
音频版坏
The music PCB failed
①、将端子接好。
Plug the terminal well
②、无输出为中心板坏
Replace the main PCB if no voltage
output
③、更换喇叭
Replace the loudspeaker
⑤
更换音频版
Replace the music PCB