NEC MT 820 - Manual (Page 36)

This section helps you resolve problems you may encounter while setting up or using your MultiSync MT1020/MT820 LCD Projector.
Status Light Messages
T R O U B L E S H O O T I N G 5
TROUBLE SHOOTING
69
70
Status
Ⅵ Normal
Ⅵ The projector lamp has exceeded 2000 hours of operation and
should be replaced.
Ⅵ Either the lamp cover or filter panel is not fastened properly. Check
each and reattach them if necessary.
Ⅵ The projector is overheated.
• If there is insufficient ventilation around the projector or if the
room where you're presenting is particularly warm, move the
projector to a cooler location.
• Check the filter and clean it if necessary.
• If the problem persists, contact your NEC dealer for service.
Condition
OFF
On Continually
Blinking very rapidly
(On and off in a cycle of 1 sec.)
Blinking rapidly
(On and off in a cycle of 4 sec.)
Blinking Slowly
(On and off in a cycle of 8 sec.)
Blinking very slowly
(On and off in a cycle of 12 sec.)
Ⅵ The cooling fan has stopped. Contact your NEC dealer for service.
Ⅵ The lamp is not turned on.
• The projector was turned off and back on too quickly. Turn
off the projector, wait one minute, then turn the projector
back on. Or the lamp is burnt.