BenQ PB8120 - Manual (Page 31)

Troubleshooting 27
Troubleshooting
Common Problems & Solutions
NO POWER
Try these solutions:
• Make sure the power cord is inserted snugged into the AC adapter socket.
• Make sure the power cord is inserted snugged into the power outlet.
• Toggle the power switch to the position “ | ”.
• Wait two minutes after the projector is turned off before turning the projector back on.
NO PICTURE
Try these solutions:
• Check for the proper input source.
• Ensure all cables are connected properly.
• Adjust the brightness and contrast.
• Remove the lens cap.
TRAPEZOID IMAGE ON THE SCREEN
Try these solutions:
• Reposition the unit to improve its angle on the screen.
• Use the Keystone correction key on the control panel of the projector or the remote
control unit.
POOR COLOR
Try these solutions:
• Select the correct video system.
• Adjust brightness, contrast, or saturation.
BLURRED IMAGE
Try these solutions:
• Press Auto on the control panel of the projector or the remote control unit to get better
picture quality.
• Adjust the focus.
• Reposition the unit to improve its projection angle.
• Ensure the distance between the unit and screen is within the adjustment range of the
lens.
REMOTE CONTROL DOES NOT WORK
Try these solutions:
• Replace the batteries with new ones.
• Make sure there is no obstacle between the remote control and the projector.
• Stand within 6 meters (19.5 feet) of the projector.
• Make sure nothing is blocking the front and rear receivers.