最近产品在做静电测试,发现空气放电 -8.5kv在PS2接口处容易死机。电路图和PCB截图如下。

做以下测试仍然死机:
1、去掉2个磁珠FB2,FB5.或去掉FB6测试,仍然死机
2、PS2下2个信号脚单独增加单个esd测试,仍然死机
如果在PS2下2个信号脚单独对地增加10nf电容,死机几率小些。
请问该怎么解决?
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