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二、电源板故障维修厦华37HU电源板发生故障,主要引发不开机、开机“三无”、开机“黑屏”故障,可通过观察待机指示灯是否点亮,测量关键的电压,解除保护的方法进行维修。图5所示是厦华37HU电源板故障维修步骤流程图。对于电源板的维修,为了避免负载电路对电源板的影响,可拔掉电源板与负载电路的连接器,将5V电压与X509的輯訛輥脚相连接,提供开机高电平,对电源板单独进行维修。
Second, the power board fault repair Xoceco 37HU power board failure, the main trigger does not boot, boot “three no ”, boot “black screen ” failure, by observing the standby indicator is lit, the measurement of the key voltage, Unprotection method for maintenance. Figure 5 shows the Xiamen Overseas Chinese 37HU power board fault repair steps flow chart. For the maintenance of the power board, in order to avoid the impact of the load circuit on the power board, you can unplug the power board and the load circuit connector, the 5V voltage and X509 Corruption roll feet connected to provide high power, the power board Separate maintenance.