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您好,
HDMI controller芯片的供电电压是多少?VCCA要与它的供电电压一样;
LS_OE和CT_HPD内部应该有下拉,实测下这两个管脚的实际电压是多少?是否为高电平?
5 V_OUT是否有输出,电压是否正常?