| 该现象一般为dianyuan电源或主板不良。经查变压器及主板上+5V、+12V正常；更换主板(5A72B)也无效。而将遥控接收板去掉后，通电有蜂鸣声，手控有效。更换遥控接收头后正常。友情提示，文章来自互联网收集，欢迎你到论坛技术交流请点击这里www.jdwx.cn |
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