116 - ENGLISHChapter 5 Maintenance — TroubleshootingTroubleshootingReview the following points. For details, see the corresponding pages.Problems Points to be checked PagePower does not turn on.rf Is the power plug firmly inserted into the outlet? ―rf Is the switch turned ? 43rf Is the wall outlet supplying electricity? ―rf Have the circuit breakers tripped? ―rf Is the temperature indicator or the lamp indicator / lit or flashing? 110, 111rf Is the lamp unit cover securely installed? 114No image appears.rf Are connections to external devices correctly performed? 37rf Is the input selection setting correct? 48, 79rf Is the [BRIGHTNESS] adjustment setting at a minimum? 55rf Is the external device that is connected to the projector working properly? ―rf Is the shutter function in use? 47rf If the power indicator is flashing in red, consult your dealer. ―The picture is fuzzy.rf Is the lens focus set correctly? 45rf Is the projection distance appropriate? 27rf Is the lens dirty? 16rf Is the projector installed perpendicular to the screen? ―The color is pale or grayish.rf Is the [COLOR] or [TINT] adjusted correctly? 56rf Is the external device connected to the projector adjusted correctly? 37rf Is the RGB cable damaged? ―The remote control doesnot respond.rf Are the batteries depleted? ―rf Is the polarity of the batteries set correctly? 23rf Are there any obstructions between the remote control and the projector’s remote controlsignal receiver? 20rf Is the remote control being used beyond its effective operation range? 20rf Are other forms of light, such as fluorescent light, affecting the projection? 20rf Is the [REMOTE CONTROL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]? 90rf Is the terminal used for contact control? 124rf Is the ID number setting operation correct? 23The menu screen does notappear.rf Is the on-screen display function turned off (hidden)? 22, 47The buttons on the controlpanel do not operate.rf Is the [CONTROL PANEL] setting in [CONTROL DEVICE SETUP] set to [DISABLE]? 90rf Is the terminal used for contact control? 124The image does not displaycorrectly.rf Is the [SYSTEM SELECTOR] selection set correctly? 59rf Is there a problem with the video tape or other image sources? ―rf Is a signal which is not compatible with the projector being input? 125Image from a computerdoes not appear.rf Is the cable too long? (Use D-Sub cables that are 10 m (32'10") or shorter.) ―rf Is the external video output of the laptop computer set correctly? Ex.: The external outputsettings may be switched by pressing the “Fn”+“F3” or “Fn”+“F10” keys simultaneously. Sincethe method varies depending on the computer type, refer to the user manual provided withyour computer.)―Image from a computer’sDVI-D output does notappear.rf Is the [DVI-D IN] setting set to [EDID3]/[EDID2:PC]? 70rf The graphics accelerator driver of the computer may need to be updated to the latest version. ―rf The computer may need to be restarted after performing [DVI-D IN] settings. 70Video from HDMIcompatible device doesnot appear or it appearsjumbled.rf Is the HDMI cable connected securely? 37rf Turn the power of the projector and the external device on and off. ―rf Is a signal which is not compatible with the projector being input? 125Attentionrf If problems persist even after checking the preceding points, consult your dealer.
