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例10.机心在放音过程中,速度忽快忽慢故障现象:录音机在放音时,磁带前进的速度不稳,忽快忽慢;声调也忽高忽低(或正常);在整盘磁带刚放上运行时带头速度慢,一会又正常,到磁带快走完时,速度又变慢了;磁带仅在某一段时速度忽快忽慢。故障分析与判断:录音机机心使用时间不长,而发生这种情况,多半是走带机构中的压带输、主导轴,供、收带盘的有关传动轮有磁粉或脏物、灰尘而影响了
Example 10. Movement in the playback process, the speed suddenly flicker Symptom: tape player during playback, the tape forward speed instability, suddenly slow; tone also fluctuated (or normal); in the whole Disk tape just put on the run lead time is slow, for a while to the end of the tape is finished, the speed and slowed down; tape only in a certain period of speed suddenly slow. Failure Analysis and Judgment: Tape recorder movement is not long, and this happens, most of the tape transport mechanism in the band lose, the main shaft, for the delivery reel with the relevant wheel with magnetic powder or dirt, dust and influence