笔者在检修一台佳音888型电脑用小型有源音箱时,根据实物整理绘制出电路原理图和印板图及有关维修实用资料,供读者在检修这类型音箱时参考。该音箱的电路原理如图1所示。印板如图2所示。从图1中可看出,电路简洁明了,便于维修,也可供有兴趣的读者仿制。正常收听状态下,偏置电压二极管D5和D6的偏置 When the author overhauling a good news 888 computer with a small active speaker, according to the physical finishing draw circuit schematic and printing plate diagram and the maintenance of practical information for readers in the maintenance of this type of speaker reference. The speaker’s circuit shown in Figure 1. Printing plate shown in Figure 2. Can be seen from Figure 1, the circuit is concise, easy to maintain, but also for those interested readers imitation. Bias of bias voltage diodes D5 and D6 in normal listening mode