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DLP3310开发套件故障

Other Parts Discussed in Thread: DLP3310

近期购买了一套DLP3310作为开发套件使用过程中出现故障

1、上电后波动投影仪开关镜头没有输出,总的电流也只有300吗A

2、上电后,如过没有拨动显示板投影仪开关,D6、D7、D8、D9LED不亮,拨动了投影开关SW2后,D7、D8、D9亮,D6会间隔1S后也亮

3、测试了R171、R173、R175电阻对地的电压是0.55V