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Some of the NEC units have a standby status when the lamplife has
exceeded its safe limit, the unit I had needed the off button pressing
for up to 20 seconds to reset the lamplife and allow the unit to be
switched back on. There should be info for this in your manual. (It could have been the on button, can't remember now)
The NEC’s work on a reducing time basis, they count the hours that they have been operational and refer to this as the life of the bulb – 1600 hours. When the 1600 hours has been reached the projector shuts itself down into standby mode never to be restarted even after changing the bulb / filters. This is because the unit needs to be reset, which needs to be done as follows (not included in any of the bulb replacement instructions):-
Plug Projector in so it is in standby mode – Orange light lit, Red status light lit (not flashing)
Using the remote control, hold down the power off button for 30-45 seconds
This will reset the status button, removing the red light
Power up the projector and select Menu
Select Projector Options
Select Set-up – a number of tabs will appear called pages
Arrow across the pages (MT850 is Page 5) until an option called “RESET LAMP HOURS” is shown
Move onto this option and press enter on the projector itself, confirm that you want to reset the counter
Projector is now back to life
This works for all NEC projectors, the page number may be different though where the “RESET LAMP HOURS” option resides.
Does the status light stay on red? If it does then the lamp timer has exspired and will not let the projector turn back on until it is reset, at which time you should replace the lamp. To reset the timer you need the remote control, with the unit plugged in in standby mode hold down the power off button for 30 to 45 seconds until the status light goes off.
hi during my investigating i found that the eletrorode surge arrester was causing the problem epcos component 800 083 number i found a device from a projection tv and it worked i also checked epcos web site but could not the accurute device number . they will ask u to use a ruler to measure the device size of the component thanks
I don't thing that because you were not reset the time lamp used now your LCD projector stop function
What was exact the unit did? no power at all or some LED light up or flashing. In any case to reset the lamp time use you must enter when unit is on
As you mentioned you did replaced the new lamp, You should check again if you reinstalled properly the lamp and lamp cover because under the lamp cover it had a safety switch if this SW not active then the unit will be in protection mode
I sugges you to remove again the lamp and reinsert properly and secure the lamp cover and try it again and if it still is not go then let me know what are the status of the 2 LED