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ViewSonic does not recommend the use of any ammonia or alcohol-based cleaners on the LCD screen or case. Some chemical cleaners have been reported to damage the screen and/or LCD case. ViewSonic will not be liable...
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Only use the specified AAA batteries. Do not mix new and old batteries. This may result in cracking or leakage, which may pose a fire risk or lead to personal injury. Insert batteries according to the (+) and (-) markings. Inserting the batteries incorrectly may result in cracking or leakage, which may pose a fire risk or lead to per-sonal injury.