论文部分内容阅读
故障现象一辆东风日产天籁公爵轿车(搭载VQ25DE发动机和CVT无级变速器,具有一键式起动系统,装备BOSE音响系统),出现播放CD或收音机时,音响无声音输出。故障排除接通点火开关,按下音响控制旋钮,打开收音机,所有扬声器均无声音输出;打开CD播放机,所有扬声器均无声音输出。客户反映,此音响刚开始偶尔会有不响的现象,已经过多次维修,现在不管如何操作都彻底不响了。查阅维修资料得知,该车装备了AV系统、后视监视器系统和音响系统,其音响系统原理如图1所示。由图1看出,多功能开关将音响打开、关闭信号通过
Trouble phenomenon A Dongfeng Nissan Teana Ducal sedan (equipped with VQ25DE engine and CVT CVT, with a one-button start system, equipped with BOSE sound system), when playing CD or radio, the sound no sound output. Turn the ignition on, press the audio control to turn on the radio, and there is no sound output for all speakers; turn on the CD player and no sound is output on all speakers. Customers reflect the sound of the beginning of the occasionally there is no sound phenomenon, has been repaired many times, and now no matter how the operation completely did not ring. Access to maintenance information that the car equipped with AV system, rearview monitor system and sound system, the sound system principle shown in Figure 1. Seen from Figure 1, multi-function switch will sound open, turn off the signal through