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笔者曾在1997年第8期《家庭电子》介绍了爱华430型组合音响改VCD机的方法。在使用中,发现该机放VCD碟片时,从音箱里发出的是左右声道混合音,L声道、R声道单独输出时,声音变得很小且音调极低沉,射频器对本机和电视机有干扰,经过打摩终于有了满意的结果。现将打摩方法介绍如下,供有兴趣者改装爱华系列机时参考。通过查阅资料得知BA3837集成块不仅具有两次静噪功能,而且与原机的卡拉OK功能有关。实测该集成块各脚电压,发现放CD时,该集成块第⒂、⒃脚呈高电平(10V),放VCD
I had in 1997 No. 8 “Home Electronics” introduced Epworth 430-type combination of sound to change VCD machine method. In use, found that the machine to play VCD disc, the speaker is issued from the left and right channel mixed sound, L channel, R channel alone output, the sound becomes very small and very low tone, the radio on the machine Interference with the TV, after the friction has finally been satisfactory results. Tomo friction methods are introduced below, for those interested in conversion Epworth series machine reference. Access to information that the BA3837 manifold not only has two mute function, but also with the original karaoke OK function. Measured the voltage of each pin of the integrated block, found that the CD, the first block of the integrated block, pinch was high (10V), put VCD