NEC NP1250 User Manual page 159

Common Problems & Solutions (→ "Power/Status/Lamp Indicator" on page 144)
Problem Check These Items
Does.not.turn.on •. Check.that.the.power.cable.is.plugged.in.and.that.the.power.button.on.the.projector.cabinet.or.the.remote.
•. Ensure.that.the.lamp.cover.is.installed.correctly..( → .page.138)
•. Check.to.see.if.the.projector.has.overheated..If.there.is.insufficient.ventilation.around.the.projector.or.if.the.
•. Check.to.see.if.you.continue.to.use.the.projector.for.another.100.hours.after.the.lamp.has.reached.the.end.
. After.replacing.the.lamp,.reset.the.lamp.hours.used..( → .page.133)
•. 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/1600.
. Also.when.the.lamp.is.turned.off,.the.projector.internal.temperature.is.hot..If.the.power.is.turned.on.before.
•. Ensure.that.the.[OFF.TIMER],.[PROGRAM.TIMER].or.[AUTO.POWER.OFF].is.off..( → .page.101,.127)
Will.turn.off
No.picture •. Use.the.SOURCE.button.on.the.projector.cabinet.or.the.VIDEO,.the.S-VIDEO,.the.COMPUTER.1,.the.COM-
•. Ensure.your.cables.are.connected.properly.
•. Use.menus.to.adjust.the.brightness.and.contrast..( → .page.90)
•. Check.to.see.if.the.image.is.muted..( → .page.35)
•. Remove.the.lens.cap.
•. Reset.the.settings.or.adjustments.to.factory.preset.levels.using.the.Reset.in.the.Menu..( → .page.133)
•. Enter.your.registered.keyword.if.the.Security.function.is.enabled..( → .page.45)
•. Be.sure.to.connect.the.projector.and.notebook.PC.while.the.projector.is.in.standby.mode.and.before.turn-
. In.most.cases.the.output.signal.from.the.notebook.PC.is.not.turned.on.unless.connected.to.the.projector.
•. See.also.the.next.page.
•. Check.if.an.appropriate.color.is.selected.in.[WALL.COLOR]..If.not,.select.an.appropriate.option..( → .page.
Color.tone.or.hue.is.
unusual
•. Adjust.[HUE].in.[ADJUST]..( → .page.90)
•. Reposition.the.projector.to.improve.its.angle.to.the.screen..( → .page.26)
Image.isn't.square.to.
•. Use.the.3DReform.function.to.correct.the.trapezoid.distortion..( → .page.30)
the.screen
•. Adjust.the.focus..( → .page.28)
Picture.is.blurred
•. Reposition.the.projector.to.improve.its.angle.to.the.screen..( → .page.26)
•. Ensure.that.the.distance.between.the.projector.and.screen.is.within.the.adjustment.range.of.the.lens..( → .
•. Condensation.may.form.on.the.lens.if.the.projector.is.cold,.brought.into.a.warm.place.and.is.then.turned.
Flicker.appears.on. •. Set.[FAN.MODE].to.other.than.[HIGH.ALTITUDE].mode.when.using.the.projector.at.altitudes.approximately.
screen
Image.is.scrolling. •. Use.the.SOURCE.button.on.the.projector.cabinet.or.the.VIDEO,.the.S-VIDEO,.the.COMPUTER.1,.the.COM-
vertically,.horizontally.or.
both
•. Adjust.the.computer.image.manually.with.the.[CLOCK]/[PHASE].in.[ADJUST]. → .[IMAGE.OPTIONS]..( → .page.91)
•. Install.new.batteries..( → .page.10)
Remote.control.does.
not.work •. Make.sure.there.are.no.obstacles.between.you.and.the.projector.
•. Stand.within.22.feet.(7.m).of.the.projector..( → .page.10)
•. Check. if. one. or. more. remote. sensors. are. enabled.. Select. [SETUP]. → . [INSTALLATION(2)]. → . [REMOTE.
•. If.the.remote.control.cable.plug.is.inserted.into.the.REMOTE.mini.jack,.the.remote.control.does.not.function.
•. Make.sure.that.the.remote.control's.ID.corresponds.with.the.projector's.ID.
•. Selecting.[ON].for.[CONTROL.ID].will.not.make.the.remote.control.supplied.with.the.projector.inoperable.
•. See.the.POWER/STATUS/LAMP.Indicator..( → .page.144)
Indicator.is.lit.or.blinking
•. Press.the.AUTO.ADJUST.button.on.the.projector.cabinet.or.the.AUTO.ADJ..button.on.the.remote.control..( → .
Vertical.stripes.in.RGB.
mode
•. Adjust.the.computer.image.manually.with.the.[CLOCK]/[PHASE].in.[ADJUST]. → .[IMAGE.OPTIONS]..( → .page.91)
•. Make.sure.that.your.USB.mouse.is.properly.connected.to.the.projector..( → .page.37)
USB.mouse.does.not.
work . The.projector.may.not.support.some.brands.of.a.USB.mouse.
•. Some.menu.items.cannot.be.operated.with.a.USB.mouse.
For more information contact your dealer.
control.is.on..( → .page.22,.23)
room.where.you.are.presenting.is.particularly.warm,.move.the.projector.to.a.cooler.location.
of.its.life..If.so,.replace.the.lamp.
meters.or.higher..Using.the.projector.at.altitudes.approximately.5500.feet/1600.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.127)
the.projector.has.cooled.down,.the.fan.will.run.a.short.time.before.the.lamp.will.turn.on.
PUTER.2,.the.COMPUTER.3,.the.COMPONENT,.the.VIEWER.or.the.NETWORK.button.on.the.remote.control.
to.select.your.source..( → .page.25)
ing.on.the.power.to.the.notebook.PC.
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.
100)
page.139,.140,.141)
on..Should.this.happen,.let.the.projector.stand.until.there.is.no.condensation.on.the.lens.
5500. feet/1600. meters. or. lower.. Using. the. projector. at. altitudes. less. than. approximately. 5500. feet/1600.
meters. and. setting. to. [HIGH. ALTITUDE]. can. cause. the. lamp. to. overcool,. causing. the. image. to. flicker..
Switch.[FAN.MODE].to.[AUTO]..( → .page.127)
PUTER.2,.the.COMPUTER.3,.the.COMPONENT,.the.VIEWER.or.the.NETWORK.button.on.the.remote.control.
to.select.your.source.(Video,.S-Video,.Computer,.Component,.Viewer.or.NETWORK)..( → .page.25)
SENSOR].from.the.menu..See.page.124.
wirelessly..See.page.11.
page.32)
45
9. Appendix