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汽车收放机和各种音响功放电路故障率较高,特别是汽车收放机所用功放块品种型号繁多,加之无图纸资料,手中又无原机型号功放块,维修很困难,下面介绍检修及代换方法,供维修者参考。一、功放块损坏后的故障现象1.完全无声。2.声音极小,噪音很大.3.只有尖叫声或“嘟嘟”声。如果出现上述症状的一种,而且手摸功放块很热或一点不温热,则功放块损坏的可能性较大,可进一步检测.
Car radio and a variety of audio amplifier circuit failure rate is high, in particular, car amplifier used amplifier block variety of models, coupled with no drawings, hands and no original model amplifier block, the maintenance is very difficult, the following describes the maintenance And replacement method for maintenance reference. First, the power amplifier block failure phenomenon 1 completely silent. 2. Very small sound, loud noise. 3. Only screams or “beeps” sound. If you have one of the above symptoms, and touch the power amplifier block is very hot or not warm, then the amplifier block is more likely to be damaged, and further testing.