Chapter 5 Maintenance — TroubleshootingENGLISH - 191TroubleshootingReview 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 ? 63f Is the wall outlet supplying electricity? ―f Have the circuit breakers tripped? ―f Are the light source indicators / or the temperature indicator lighting or blinking? 186No image appears.f Are connections to external devices correctly performed? 46f Is the input selection setting correct? 69f Is the [BRIGHTNESS] adjustment setting at a minimum? 82f Is the external device that is connected to the projector working properly? ―f Is the shutter function in use? 71f If the power indicator is blinking in red, consult your dealer. ―f Is the lens cover still attached to the lens? 55Image is fuzzy.f Is the lens focus set correctly? 64f Is the projection distance appropriate? 36f Is the lens dirty? 21f Is the projector installed perpendicular to the screen? ―Color is pale or grayish. f Are [COLOR] and [TINT] adjusted correctly? 82f Is the external device connected to the projector adjusted correctly? 46Remote control does notrespond.f Are the batteries depleted? ―f Is the polarity of the batteries set correctly? 32f 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 button operation disabled by operating the button on the remotecontrol? 25f Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 157f Is the terminal used for contact control? 208f Is the ID number setting operation correct? 74Menu screen does notappear. f Is the on-screen display function turned off (hidden)? 71Buttons on the controlpanel do not operate.f Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to[DISABLE]? 157f Is the terminal used for contact control? 208Image does not displaycorrectly.f Is the [SYSTEM SELECTOR] selection set correctly? 87f Is there a problem with the image output source? ―f Is a signal which is not compatible with the projector being input? 210f Are the settings for [SDI IN], [DIGITAL LINK IN], and [SLOT IN] made correctly? ―Image from a computerdoes not appear.f Is the cable too long? ―f Is the external video output on the laptop computer set correctly? (Ex.: The externaloutput settings may be switched by pressing the “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 [DVI-D LINK] in [SLOT IN] correctly set? If the setting is [AUTO], the conditionmay be improved by setting to anything other than [AUTO]. 114f Is the [EDID SELECT] setting in [SLOT IN] set to [EDID3] or [EDID2:PC]? 115f The graphics accelerator driver of the computer may need to be updated to thelatest version. ―f The condition may improve by setting [EDID SELECT] in [SLOT IN] and thenrestarting the computer. 115Video from HDMIcompatible device doesnot appear or it appearsjumbled.f Is the HDMI cable connected securely? 46f 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? 210
