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About K400 K500 K600
K400 K500 K600 Series Projector Maintenance Guide
- How to change the Chinese menu to English menu?
Operation instruction video connection: https://youtu.be/FOW26jquUJk
- Prompt filter warning, how to operate filter time reset？
First clean the dust off the filter, then follow the video steps below
Operation instruction video connection: https://youtu.be/C4UiR9awb_Y