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看不懂楼主要表达的意思

帮我。逆变器powtran pi9200显示cof

E-mail is the right choice when language communication is difficult.
Email address1：inverter@powtran.com
Email address2：powtran@powtran.com
Phone number：+864000411755

楼主，是国际友人。

FYI:
1.check keyboard interface;
2.the detection keyboard line ,crystal connector is abnormal;
3.replace the control panel or keyboard;
4.consult the manufacturers for help.
MORE DETAIL SEE POST #4 AND #13.

越南   人哈哈哈哈哈哈哈哈哈

学习知识无国界！这种精神佩服。

介绍个越南媳妇呗

谢谢大家 问题已经解决，破屏