Today is Thursday, November 18th, 2021. There are 15 units of the production model S7710 on the fourth floor with poor display. The analysis shows that the LCD screen pins are damaged. Because the semi-finished products are not tested, the display is poor in the baking process, and some bad opportunities are unstable display. After further use of magnifying glass and voltage measurement, no abnormality is found, and the production rate is 2%. Now the production has stopped. If the LCD display is defective by QA or the customer is defective, it will be returned. According to the current bad evaluation, there is shipment risk or return risk. Before, there was no LCD display defect in this machine, and the display problem has been very stable, that is, it was only recently that one or two orders were produced that more and more display defects were found. From the current screening analysis, the incoming materials were defective, so the feedback supplier reworked the inventory and responded to the follow-up improvement measures.
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