调亮度 (SOFT/FN KEY 无变化说明背光灯管 的电压/电流没变.
你已经换过INVERTER 说明问题在软件和INVERTER之前的电路有问题. 查到INVERTER的PWM信号.
调亮度 (SOFT/FN KEY 无变化说明背光灯管 的电压/电流没变.
你已经换过INVERTER 说明问题在软件和INVERTER之前的电路有问题. 查到INVERTER的PWM信号.
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