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手头有一块T113-MQ-R和一块7寸LCD屏(1024*600)，买了一块40pin转50pin的驱动板，能成功点亮显示屏 但发现MQ-R发热严重，排查后发现是背光驱动电路中的电感L4发烫 查了下屏的参数，背光电流要200mA 然后MT9284-28J的Vfb = 104mV 我是只需要调整R4的阻值呢还是需要更换驱动芯片，L4(10uH)电感是否需要跟换？
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