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PT-LB90NTの取扱説明書・マニュアル [全68ページ 8.58MB]

TroubleshootingMaintenanceENGLISH - 51TroubleshootingConirm the following problem and cause. Should any problem persist, contact an Authorized Service Center.Problem Cause PagePower does not turn on.The power cord may not be connected securely. z19No electric supply at the wall outlet. z21The circuit breakers have tripped. z—TEMP z or LAMP indicator is lit or lashes. 46The lamp unit cover has not been securely installed. z49The control buttons are zLOCKED. 4CONTROL PANEL z in the PROJECTOR SETUP menu is invalidated. 4No picture appears.The audio signal source may not be connected properly. z17, 18The input selection setting may not be correct. z23The zBRIGHTNESS adjustment setting may be at the minimum setting. 30The signal input source may not be operating properly. z—The zAV MUTE function may be in use. 24The picture is fuzzy.The lens focus may not have been set correctly. z23The projector may not be at the correct distance from the screen. z15The lens may be dirty. z47The projector may be tilted too much. z15Color is pale or grayish.COLOR z or TINT adjustment may be incorrect. 30The input source which is connected to the projector may not be adjusted zcorrectly.—No sound can be heard from the internal speaker.The audio signal source may not be connected properly. z17, 18The volume adjustment may be at the lowest possible setting. z25, 41A cable may be connected to the zVARIABLE AUDIO OUT terminal. 13The remote control does not operate.The batteries may be weak. z—The batteries may not have been inserted correctly. z14The remote control signal receptor on the projector may be obstructed. z14The remote control unit may be out of the operation range. z14REMOTE CONTROLLER z in the PROJECTOR SETUP menu is invalidated.4The remote control is under a strong light such as luorescent. z14The control buttons of the projector do not operate.CONTROL PANEL z in the PROJECTOR SETUP menu is invalidated. (If you have a loss of the remote control while the CONTROL PANEL is invalidated, press and hold the MENU button for 2 seconds by pressing the ENTER button.)4The picture does not display correctly.T zhe signal format ( TV-SYSTEM , RGB/YPBPR) may not have been set correctly.31There may be a problem with the VCR or other signal source. z—A signal which is not compatible with the projector is being input. z52Picture from a computer does not appear.The RGB signal cable is too long. (Limit to 10 m (32'10").) z—The external video output from a laptop computer may not be correct. z(You may be able to change the external output settings by pressing the [Fn] + [F3] or [Fn] + [F10] keys simultaneously. The actual method varies depending on the type of computer; refer to the documentation provided with your computer for further details.)36The projector cannot be controlled through serial terminal.EMULATE z in the PROJECTOR SETUP menu is not set correctly. (If you fail to select your product series, ask your dealer for repair. )40NoteIf the projector does not operate normally after the above remedies are taken, contact an Authorized Service Center. z

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