NEC PA803U - Common Problems & Solutions

185
8. Appendix
Common Problems & Solutions
(→“Power/Status/LampIndicator”onpage180.)
Problem Check These Items
Does not turn on
or shut down
• Checkthatthepowercordispluggedinandthatthepowerbuttonontheprojectorcabinetortheremotecontrol
is on� (→ pages 15, 17)
• Ensurethatthelampcoverisinstalledcorrectly.(→ page 158)
• Checktoseeiftheprojectorhastemperatureerror,Ifprojectorinsidetemperatureistoohotorcool,itdisabledto
turn on the projector as the protection� Wait for a moment and try turn on the projector again�
• Thelampmayfailtolight.Waitafullminuteandthenturnonthepoweragain.
• Set[FANMODE]to[HIGHALTITUDE]whenusingtheprojectorataltitudesapproximately5500feet/1700meters
or higher� Using the projector at altitudes approximately 5500 feet/1700 meters or higher without setting to [HIGH
ALTITUDE] can cause the projector to overheat and the projector could shut down� If this happens, wait a couple
minutes and turn on the projector� (→ page 115)
If you turn on the projector immediately after the lamp is turned off, the fans run without displaying an image for
some time and then the projector will display the image� Wait for a moment�
Will turn off
• Ensurethatthe[OFFTIMER],[AUTOPOWEROFF]or[PROGRAMTIMER]isoff.(→ page 119, 133)
No picture
• Checkiftheappropriateinputisselected.(→ page 19) If there is still no picture, press the INPUT button or one of
the input buttons again�
• Ensureyourcablesareconnectedproperly.
• Usemenustoadjustthebrightnessandcontrast.(→ page 90)
• Ensurethatthelenscoverisopen.(→ page 17)
• Resetthesettingsoradjustmentstofactorypresetlevelsusingthe[RESET]intheMenu.(→ page 134)
• EnteryourregisteredkeywordiftheSecurityfunctionisenabled.(→ page 43)
• IftheHDMIinputortheDisplayPortsignalcannotbedisplayed,trythefollowing.
- Reinstall your driver for the graphics card built in your computer, or use the updated driver�
For reinstalling or updating your driver, refer to the user guide accompanied with your computer or graphics
card, or contact the support center for your computer manufacturer�
Install the updated driver or OS on your own responsibility�
We are not liable for any trouble and failure caused by this installation�
• ThesignalmaynotbesupporteddependingontheHDBaseTtransmissiondevice.Inaddition,RS232Cinterface
may not be supported�
• BesuretoconnecttheprojectorandnotebookPCwhiletheprojectorisinstandbymodeandbeforeturningonthe
power to the notebook PC�
In most cases the output signal from the notebook PC is not turned on unless connected to the projector before
being powered up�
* If the screen goes blank while using your remote control, it may be the result of the computer’s screen-saver or
power management software�
• Seealsothepage187�
Picture suddenly
becomes dark
• CheckiftheprojectorisintheForcedECOmodebecauseoftoohighambienttemperature.Ifthisisthecase,lower
the internal temperature of the projector by selecting [HIGH] for [FAN MODE]� (→ page 115)
Color tone or hue is
unusual
• Checkifanappropriatecolorisselectedin[WALLCOLOR].Ifso,selectanappropriateoption.(→ page 115)
• Adjust[HUE]in[PICTURE].(→ page 91)
Image isn’t square to
the screen
• Repositiontheprojectortoimproveitsangletothescreen.(→ page 21)
• Perform[GEOMETRICCORRECTION]whenthetrapezoidisdistorted.(→ page 103)
Picture is blurred
• Adjustthefocus.(→ page 23)
• Repositiontheprojectortoimproveitsangletothescreen.(→ page 21)
• Ensure that thedistance between theprojector and screenis within theadjustment range ofthe lens.
(→ page 162)
• Hasthelensbeenshiftedbyanamountexceedingtheguaranteedrange?(→ page 167)
• Condensationmayformonthelensiftheprojectoriscold,broughtintoawarmplaceandisthenturnedon.Should
this happen, let the projector stand until there is no condensation on the lens�
Flicker appears on
screen
• Set[FANMODE]tootherthan[HIGHALTITUDE]modewhenusingtheprojectorataltitudesapproximately5500
feet/1700 meters or lower� Using the projector at altitudes less than approximately 5500 feet/1700 meters and setting
to [HIGH ALTITUDE] can cause the lamp to overcool, causing the image to flicker� Switch [FAN MODE] to [AUTO]�
(→ page 115)
Image is scrolling
vertically, horizontally
or both
• Checkthecomputer’sresolutionandfrequency.Makesurethattheresolutionyouaretryingtodisplayissupported
by the projector� (→ page 169)
• AdjustthecomputerimagemanuallywiththeHorizontal/Verticalinthe[IMAGEOPTIONS].(→ page 92)
Remote control does
not work
• Installnewbatteries.(→ page 12)
• Makesuretherearenoobstaclesbetweenyouandtheprojector.
• Standwithin40m/1575inchoftheprojector.(→ page 13)
Indicator is lit or
blinking
• SeethePOWER/STATUS/LAMPIndicator.(→ page 180)