This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DLP3010LC: DLP3010 system异常咨询,初始化失败,DLPA2005 输出RESETZ循环active

Part Number: DLP3010LC
Other Parts Discussed in Thread: DLP3010, DLPC3478, DLPA2005

 DLPA2005+DLPC3478+DLP3010初始化失败,DLPA2005的RESETZ pin循环active(周期235ms,低电平时间10.8ms),如下图所示。做过如下测试:

      1.交换光机,排除光机问题;

      2.重写固件,排除固件问题;

      3.交换驱动板,定位到是驱动板问题,故障率2pcs,不清楚是DLPA/DLPC/驱动板与光机的连接问题?

      4.异常驱动板,测试DLPA和DLPC输入电压正常,DLPA输出电压异常(V6V 0V;VOFS 6-10V跳动;VBIAS 4.4V;VRST 0.4V);

      5.异常驱动板,更换DLPA2005芯片,现象不变;

      请问下如何排查这种故障的原因?