7
Cleaning the Projection Window.................................................................................................. 155
Cleaning the Obstacle Sensor ..................................................................................................... 156
Cleaning the Projector Case........................................................................................................ 157
Cleaning the Air Filter and Vents ................................................................................................. 158
Replacing the Air Filter ................................................................................................................ 161
Replacing the Remote Control Batteries .......................................................................................... 164
Transporting the Projector................................................................................................................ 166
Projection Problem Tips ................................................................................................................... 167
Projector Light Status ....................................................................................................................... 168
Using the Projector Help Displays .................................................................................................... 171
Solving Image or Sound Problems ................................................................................................... 171
Solutions When No Image Appears............................................................................................. 172
Solutions When Image is Incorrect Using the USB Display Function .......................................... 173
Solutions When "No Signal" Message Appears........................................................................... 173
Displaying From a PC Laptop ................................................................................................. 174
Displaying From a Mac Laptop ............................................................................................... 175
Solutions When "Not Supported" Message Appears ................................................................... 175
Solutions When Only a Partial Image Appears ............................................................................ 175
Solutions When the Image is Not Rectangular ............................................................................ 176
Solutions When the Image Contains Noise or Static ................................................................... 176
Solutions When the Image is Fuzzy or Blurry .............................................................................. 177
Solutions When the Image Brightness or Colors are Incorrect .................................................... 178
Solutions to Sound Problems ...................................................................................................... 179
Solutions to Projector Power or Shut-Off Problems ..................................................................... 180
Solutions to Problems with the Remote Control........................................................................... 181
Solutions to Password Problems ................................................................................................. 181