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卡拉OK混响器伴唱时交流声大,主要原因是话筒至放大电路板之间的屏蔽接连地线断路或话筒放大电路中的滤波电容不良或导线。
Kara OK reverberation accompaniment hum, the main reason is the microphone to amplifier circuit board between the shielding ground wire or microphone amplification circuit in the filter capacitor bad or wire.