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盒式录音机用过一段时间后,常见在放音的同时,从录音机R或L声道扬声器中,发出类似打火或炒豆般的噼啪声,听起来令人生厌,严重地影响了录放效果.这种噼啪噪声来源多是由于电荷放电或机械组件中相互摩擦放电所致.这些积累的电荷经过放大器放大后.由扬声器输出,发出噼啪噪声.涉及到的部位很广,例如电路的屏蔽不良,相邻的几个大容量电解电容器的金属外壳与电容本身之间漏电,机心接地不良,电机跳火及机械传动部分有污物等.修理时.应首先确定产生噼啪声的大致部位,然后再进行检修.
After a period of time, it is common for the cassette player to emit a crackling-like or chafing-like crackling sound from the recorder R or L-channel speaker while it is playing, which sounds annoying and seriously affects the recording and playback effects The source of such crackling noise is mostly due to charge discharge or frictional discharge between mechanical components, which are amplified by amplifiers and output by speakers, , The adjacent several large-capacity electrolytic capacitor leakage between the metal shell and the capacitor itself, the heart of poor grounding, motor sparks and mechanical transmission part of the dirt, etc. Repair should first determine the approximate location of the crackling sound, Then overhaul.