Chapter 6 Maintenance — Troubleshooting202 - ENGLISHTroubleshootingReview the following points. For details, see the corresponding pages.Problems Points to be checked PagePower does not turn on.f Is the power plug firmly inserted into the outlet? ―f Is the switch set to ? 65f Is the wall outlet supplying electricity? ―f Have the circuit breakers tripped? ―f Is the light source indicator blinking? 196f Is the temperature indicator lit or blinking? 197No image appears.f Are connections to external devices correctly performed? 51f Is the input selection setting correct? 66f Is the [BRIGHTNESS] adjustment setting at a minimum? 84f Is the external device that is connected to the projector working properly? ―f Is the shutter function in use? 71, 108f If the power indicator is blinking in red, consult your dealer. ―Image is fuzzy.f Is the lens focus set correctly? 67f Is the projection distance appropriate? 37f Is the lens dirty? 25f Is the projector installed perpendicular to the screen? ―Color is pale or grayish.f Are [COLOR] and [TINT] adjusted correctly? 85f Is the external device connected to the projector adjusted correctly? 51f Is the computer cable damaged? ―Audio is not output.f Is the external device connected correctly to the audio input terminal? 32f Is the volume set to minimum? 72, 122f Is the mute function used? 71, 123f Is [AUDIO IN SELECT] in [AUDIO SETTING] correctly set? 123f Is there a cable connected to the terminal? Audio is notoutput from the built-in speaker when a cable is connected. 52, 123Remote control does notrespond.f Are the batteries depleted? ―f Is the polarity of the batteries set correctly? 33f Are there any obstructions between the remote control and the remote controlsignal receiver of the projector? 29f Is the remote control being used beyond its effective operation range? 29f Are other forms of light, such as fluorescent light, affecting the projection? 29f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 137f Is the ID number setting operation correct? 76Menu screen does notappear. f Is the on-screen display function turned off (hidden)? 72Buttons on the controlpanel do not operate.f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 137Image does not displaycorrectly.f Is [SYSTEM SELECTOR] set properly? 88f Is there a problem with the video tape or other image sources? ―f Is a signal which is not compatible with the projector being input? 217Image from a computerdoes not appear.f Is the cable too long? (For D-Sub cables, the cable length should be 10 m (32'10")or shorter.) ―f Is the external video output on the laptop computer set correctly? (Ex.: The externaloutput settings may be switched by pressing the “Fn” + “F3” keys or the “Fn” + “F10”keys simultaneously. This will differ depending on the model of the computer. Referto the user manual provided with your computer.)―Video from HDMIcompatible device doesnot appear or it appearsjumbled.f Is the HDMI cable connected securely? 51f Turn the power of the projector and the external device off and on. ―f Is a signal which is not compatible with the projector being input? 217No audio is coming fromthe HDMI compatibledevice.f Set the audio for connected device to linear PCM. ―
