BenQ LU9255 Installation Manual page 71

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y 从投影机卸下现有镜头
1. 将镜头松开按钮按到解锁位置。
2. 抓紧镜头。
3. 逆时针旋转镜头。现有镜头将被分离。
4. 慢慢拉出现有镜头。
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