BenQ CP120 User Manual - Page 59

Troubleshooting The projector does not turn on. Cause There is no power from the power cable. Attempting to turn the projector on again during the cooling process. Remedy Plug the power cord into the AC inlet on the projector, and plug the power cord into the power outlet. If the power outlet has a switch, make sure that it is switched on. See "Start up" on page 21 for details. Wait until the cooling down process has completed. See "Shutdown" on page 27 for details. No picture. Cause Remedy The video source is not turned on or connected correctly. The projector is not correctly connected to the input source device. The input signal has not been correctly selected. The lens cover is not open. Turn the video source on and check that the signal cable is connected correctly. See "Connection" on page 16 for details. Check the connection. See "Connection" on page 16 for details. Select the correct input signal with the SOURCE button on the projector or remote control. See "Switching input signal" on page 26 for details. Slide open the lens cover. Image is unstable. Cause Remedy The connection cables are not Correctly connect the cables to the securely connected to the projector or appropriate terminals. See "Connection" on the signal source. page 16 for details. Image is blurred. Cause The projection lens is not correctly focused. The projector and the screen are not aligned properly. The lens cover is not open. Remedy Adjust the focus of the lens using the focus ring. See "Fine-tuning the image size and clarity" on page 24 for details. Adjust the projection angle and direction as well as the height of the unit if necessary. See "Obtaining a preferred projected image size" on page 12 for details. Slide open the lens cover. Troubleshooting 51