[attachment=136063] [attachment=136064] [attachment=136062] 高手请看此机有没有双极化电路，没有的话怎么改？谢谢！
[img]http://f151.mail.yahoo.com/ya/download?mid=1_22_2_36177_0_AEhnpcoAAKdTTRbtkA0yJCc0S5I&fid=%2540S%2540Search&pid=2&clean=0&inline=1[/img]
[img]http://f151.mail.yahoo.com/ya/download?mid=1_22_2_36177_0_AEhnpcoAAKdTTRbtkA0yJCc0S5I&fid=%2540S%2540Search&pid=3&clean=0&inline=1[/img]
[img]http://f151.mail.yahoo.com/ya/download?mid=1_22_2_36177_0_AEhnpcoAAKdTTRbtkA0yJCc0S5I&fid=%2540S%2540Search&pid=4&clean=0&inline=1[/img] [attachment=136062]
