NEC NP-UM351WI-TM User Manual download pdf (Page 140)

129

8. Appendix

Common Problems & Solutions

(→“Power/Status/LampIndicator”onpage128.)

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 13, 14)

• Ensurethatthelampcoverisinstalledcorrectly.(→ page 124)

• Checktoseeiftheprojectorhasoverheated.Ifthereisinsufcientventilationaroundtheprojectororiftheroom

where you are presenting is particularly warm, move the projector to a cooler location�

• Checktoseeifyoucontinuetousetheprojectorforanother100hoursafterthelamphasreachedtheendofits

life� If so, replace the lamp� After replacing the lamp, reset the lamp hours used� (→ page 122)

• 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 92)

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]or[AUTOPOWEROFF]isoff.(→ page 88, 95)

No picture

• UsetheCOMPUTER1,HDMI1/MHL, HDMI2, VIDEO, USB-A, USB-B or LAN button on the remote control to select

your source (COMPUTER, HDMI1/MHL, HDMI2, VIDEO, USB-A, LAN or USB-B)� (→ page 16) If there is still no

picture, press the button again�

• Ensureyourcablesareconnectedproperly.

• Usemenustoadjustthebrightnessandcontrast.(→ page 80)

• Resetthesettingsoradjustmentstofactorypresetlevelsusingthe[RESET]intheMenu.(→ page 102)

• EnteryourregisteredkeywordiftheSecurityfunctionisenabled.(→ page 33)

• 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next page�

Picture suddenly be-

comes 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 92)

Color tone or hue is un-

usual

• Checkifanappropriatecolorisselectedin[WALLCOLOR].Ifso,selectanappropriateoption.(→ page 87)

• Adjust[HUE]in[PICTURE].(→ page 80)

Image isn’t square to the

screen

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 17, 18)

• UsetheKeystonecorrectionfunctiontocorrectthetrapezoiddistortion.(→ page 21)

Picture is blurred

• Adjustthefocus.(→ page 18)

• Repositiontheprojectortoimproveitsangletothescreen.(→ page 17, 18)

• Ensurethatthedistancebetweentheprojectorandscreeniswithintheadjustmentrangeoftheprojectionwindow.

(→ page 103, 104)

• 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�

Fl i c k e r ap p e a rs o n

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 ALTI-

TUDE] can cause the lamp to overcool, causing the image to ﬂicker� Switch [FAN MODE] to [AUTO]� (→ page 92)

Image is scrolling ver-

tically, 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 135)

• AdjustthecomputerimagemanuallywiththeHorizontal/Verticalinthe[IMAGEOPTIONS].(→ page 82)

Remote control does

not work

• Installnewbatteries.(→ page 10)

• Makesuretherearenoobstaclesbetweenyouandtheprojector.

• Standwithin22feet(7m)oftheprojector.(→ page 10)

Indicator is lit or blink-

ing

• SeethePOWER/STATUS/LAMPIndicator.(→ page 128)

Cross color in RGB

mode

• PresstheAUTOADJ.buttonontheprojectorcabinetortheremotecontrol.(→ page 23)

• Adjustthecomputerimagemanuallywith[CLOCK]/[PHASE]in[IMAGEOPTIONS]inthemenu.(→ page 81)

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 ... 151 152

Comments to this Manuals

No comments

NEC NP-UM351WI-TM User Manual Page 140

Comments to this Manuals

Related products and manuals for Data projectors NEC NP-UM351WI-TM