Chapter 5 Maintenance — Troubleshooting164 - 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 ? 57f Is the wall outlet supplying electricity? ―f Have the circuit breakers tripped? ―f Are the lamp indicator / or the temperature indicator litor flashing? 157f Is the lamp unit cover attached? 162No image appears.f Are connections to external devices correctly performed? 49f Is the input selection setting correct? 62f Is the [BRIGHTNESS] adjustment setting at a minimum? 71f Is the external device that is connected to the projector working properly? ―f Is the shutter function in use? 61f If the power indicator is flashing in red, consult yourdealer. ―f Is the lens cover still attached to the lens? 55Image is fuzzy.f Is the lens focus set correctly? 58f Is the projection distance appropriate? 33f Is the lens dirty? 19f Is the projector installed perpendicular to the screen? ―Color is pale or grayish.f Is [COLOR] or [TINT] adjusted correctly? 72f Is the external device connected to the projector adjusted correctly? 49f Is the RGB cable damaged? ―Remote control does notrespond.f Are the batteries depleted? ―f Is the polarity of the batteries set correctly? 29f Are there any obstructions between the remote control and the remote controlsignal receiver of the projector? 25f Is the remote control being used beyond its effective operation range? 25f Are other forms of light, such as fluorescent light, affecting the projection? 25f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 131f Is the terminal used for contact control? 176f Is the ID number setting operation correct? 29Menu screen does notappear. f Is the on-screen display function turned off (hidden)? 101Buttons on the controlpanel do not operate.f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 131f Is the terminal used for contact control? 176Image does not displaycorrectly.f Is the [SYSTEM SELECTOR] selection set correctly? 76f 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? 178Image from a computerdoes not appear.f Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or shorter.) ―f Is the external video output on the laptop computer set correctly? (Ex.: Theexternal output settings may be switched by pressing “Fn” + “F3” or “Fn” + “F10”simultaneously. Since the method varies depending on the computer type, refer tothe user manual provided with your computer.)―Image output from DVI-Dof the computer does notappear.f Is the [DVI-D IN] setting [EDID3] or [EDID2:PC]? 98f The graphics accelerator driver of the computer may need to be updated to thelatest version. ―f The computer may need to be restarted after performing the [DVI-D IN] setting. 98Video from HDMIcompatible device doesnot appear or it appearsjumbled.f Is the HDMI cable connected securely? 49f Turn the power of the projector and the external device on and off. ―f Is a signal which is not compatible with the projector being input? 178Cannot control theprojector with Art-Net.f Are the connections between the twisted-pair-cable transmitter and the projector oran external device correctly done? ―f Is the [Art-Net] setting [ON]? 136f Are the [PORT ADDRESS] and [START ADDRESS] settings correct? 136
