①录音机机芯自动复位异常时(如收录机按键按下即跳回复位、随身听自动返带频繁),应首先检查与自动复位有关的弹簧是否变形。如是,可将弹簧拉紧或减少1～2匝后接回原处即可。再检查滑动部分摩擦力是否足够。若不够,可用酒精松香液涂于相应处即可。②有些随身听(如东芝KT—4218)只有调频立体 (1) When the automatic reset of the recorder movement is abnormal (if the recorder key is pressed, it will jump back to the reset position and the player will automatically return the band frequently), firstly, check if the spring related to the automatic reset is deformed. If so, the spring can be tightened or reduced by 1 to 2 turns back to the original place can be. Then check the sliding part of the friction is enough. If not enough, available alcohol rosin coating at the appropriate office can be. ② some players (such as Toshiba KT-4218) only FM stereo