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一台松下XF50型随身听,无法启动放音功能,收音正常。检修过程首先拆下该机前面板,即可见到机内的两块双面印制板,其已将机械机芯全部遮盖,但还是能够观察到压带轮的运转情况。此时装上电池,放入磁带(放入磁带才能开机),按播放键后电机能转动,主轴也能转动,但很快就一直卡住不动,几秒后保护性停机。由此现象初步判断为皮带老化拉长后打滑,或机芯内掉入异物卡住了内部运转齿轮所致
A Panasonic XF50 Walkman, can not start the playback function, normal radio. Maintenance process First remove the aircraft front panel, you can see the machine inside the two double-sided PCB, which has all the mechanical movement cover, but still able to observe the pressure pulley operation. At this point the battery is loaded, into the tape (into the tape in order to boot), press the play button after the motor can rotate, the spindle can rotate, but quickly stuck there, a few seconds after the protective shutdown. This phenomenon is initially judged as a slippery belt after aging or foreign matter stuck in the movement due to the internal operation of the gear