We checked the returned unit and confirmed that the ccd module defective.Based on the result, we concluded that it was caused due to the excessive force applied on the ccd module.In addition, we confirmed that the air water channel clogged, the segment hard to move, the u/d & r/l pulley wire worn out, the u/d knob lock lever had improper adjustment, the suction channel buckled, the eog valve loosened, and the root brace rubber cut; however, they are not the main cause, and/or irrelevant to the alleged complaint.Based on the technical report and/or the risk analysis results, it was evaluated to submit mdr.
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