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1. Please wipe dust and other particles with clean downless mull.
2. If it is still not clean, please smear diluent neutral cleaner free from brightener on the clean
downless mull and wipe with it. Wipe dry with a dry mull after cleaning it.
3. Rubbing or knocking the housing with fingernails or other hard objects might cause scratch.
Before consulting service staff, please find out the possible reason for the problem and the
possible solution according to the following chart.
Phenomenon
No image or sound
Inferior sound, normal image
Inferior image，normal sound
Poor signal
Vague image
Double image
Interfering lines in image
Twisty image
Poor signal
Rung stripe in image
Image vertically scrolls
Inferior color
No color
User Manual
The way of cleaning
Trouble shooting
Trouble shooting ways
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Handling method
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