ENGLISH - 91TroubleshootingPlease check following points. For details, see the corresponding pages.ProblemCauseReferencepagePower does not turnon.fThe power cord may not be connected.fNo electric supply is at the wall outlet.fThe circuit breakers have tripped.fIs the power indicator or the warning indicator indicator lit or blinking?fThe lamp cover has not been securely installed.———8489No picture appears.fThe video signal input source may not be connected to a terminal properly.fThe input selection setting may not be correct.fThe [Brightness] adjustment setting may be at the minimum setting.fThe input source which is connected to the projector may have a problem.fThe AV mute function may be in use.30 - 3238, 4852—40The picture is fuzzy.fThe lens focus may not have been set correctly.fThe projector may not be at the correct distance from the screen.fThe lens may be dirty.fThe projector may be tilted too much.3726 - 2816—The color is pale orgrayish.f[Color] or [Tint] adjustment may be incorrect.fThe input source which is connected to the projector may not be adjustedcorrectly.fRGB cable is damaged.53——No sound from theinternal speaker.fThe input terminals may not have been correctly connected.fThe volume may have been set to the minimum level.fThe AV mute function may have been turned on.fWhen the VARIABLE AUDIO OUT is plugged-in, the projector's built-in speakeris not available.fThe Mute function may have been turned on.31 - 3241, 574030 - 3242, 58The remote controldoes not operate.fThe batteries may be weak.fThe batteries may not have been inserted correctly.—23fThe remote control signal receptor on the projector may be obstructed.20fThe remote control unit may be out of the operation range.20fStrong light such as fluorescent shine onto the signal receptor.20fIs the operation of the remote control set to disabled in [Key lock] of the [Setting]menu?57fWhen different codes are set on the projector and on the remote control.23The control buttons ofthe projector do notoperate.fIs the operation of the control panel set to disabled in [Key lock] of the [Setting]menu?57The picture does notdisplay correctly.fThere may be a problem with the VCR or other signal source.fA signal which is not compatible with the projector is being input.—97 - 98Picture from acomputer does notappear.fThe cable may be longer than the optional cable.fThe external video output from a laptop computer may not be correct.——Picture from a HDMIdevice does notappear or picture isnot stable.fIs the HDMI cable securely connected?fTurn off the power of the projector and the connected devices. Then turn thepower of the projector and the connected devices back on.fIsn't unsupported signal cable connected?30 - 32—97 - 98No sound is outputfrom a HDMI device.fSet the sound channel of the attached device to Linear PCM.—fConnect the computer to the terminal through the HDMI-DVIconversion cable, set [Sound] of [HDMI Setup] to [Computer], and then input theanalog audio signal to the 58Themark appearson the screen.fTo inform that the projector cannot execute the operation. Check the connectionsand the input signals, then operate correctly.—AttentionfIf the problem persists, after confirming the contents of the table, please consult your dealer.Chapter 5Maintenance - Troubleshooting
