Nec LT84 Beamer projector Handleiding

Oorzaak: Power cable not connected, power button not activated, lamp housing not properly installed, or projector overheating

Check that power cable is plugged in and power button is activated. Ensure lamp housing is correctly installed (see page G-33). Check if projector is overheated or lamp operating hours exceed 1100. Place projector in a cooler location if ventilation is insufficient.

Oorzaak: Lamp has exceeded 1000 operating hours, lamp cover not properly closed, temperature safety triggered, fan shut down, or lamp not lit

Replace projection lamp if it has exceeded 1000 hours. Check and properly close lamp cover if loose. Move projector to cooler location if temperature is high. Check ventilation slot under projector for blockages and remove if necessary. Contact NEC dealer if fan has shut down. If lamp does not light, turn projector off, wait one minute, and turn back on. Replace lamp if it is burned out.

Oorzaak: Wrong input source selected, cables not properly connected, brightness/contrast settings incorrect, lens cap not removed, or factory settings need to be reset

Select correct input source using menu (Video, S-Video, RGB or PC Card Viewer). Ensure all cables are properly connected. Adjust brightness and contrast using menu settings (see page G-20). Remove lens cap. Reset settings to factory defaults using 'Manufacturer Preset' in settings menu (see page G-21).

Oorzaak: Projector position angle to screen is incorrect, or trapezoid distortion present

Reposition projector to improve angle to screen (see page G-12). Correct trapezoid distortion using 'Trapezoid' option in settings menu (see page G-21).

Oorzaak: Focus not adjusted, projector position angle incorrect, or projector distance outside lens adjustment range

Adjust focus (see page G-12 or G-17). Reposition projector to improve angle to screen (see page G-12). Ensure distance between projector and screen is within lens adjustment range (see page G-13).