Question about NEC MT850, MT1050, MT1055, MT1056 Replacement Projector Lamp - MT50LP Projector Lamp

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NEC MT850 I have an NEC MT850 which recently likes to power itself down. As if the AC has been removed. It comes back after a time. I replaced the unit with a system which has been OK and now it displays the same problem. It acts like an internal breaker is being thrown. I don't have schematics for the projector wonder if anyone else has experienced this. I have checked the AC to the projectors and it appears OK when metered. Only 500 hours of lamp and projector use on the most recent unit.

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  • kaveding Nov 28, 2008

    I have a MT1055 that recently started shutting down, just like the MT850. Lamp hours are less than 300. It is random... I could be watching for an hour, or 10 minutes, then it just shuts off. No indicator lights. If I wait for 20 minutes or so, the indicator lights reappear and I can power it back up. But it will only keep shutting down. HELP!!

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We cleaned the filter on the projector and it has never happened since. Assume that it was overheating due to lack of airflow.

Posted on Mar 24, 2009

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I have same projector and had same issue. An NEC repair guy said that usually means it is getting too hot. I set a little fan next to it when it is on and I no longer have this problem. This can also be caused be re-lamped bulbs. Problem usually goes away if you have a re-lamped bulb and buy a factory bulb.

Posted on Dec 06, 2008

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As there were no indicator lights lit I focused on the AC. The projectors work as they should in another location and as such I am fairly certain the problem is associated with the AC power in the particular room. I haven't isolated the exact condition as yet.

Thanks

Posted on May 21, 2008

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1 Answer

The status light is on our NEC MT850 and the bulb looks fine. What other problems could it be?


1,Check the fans ,whether each fan is running,when you turn on the projector
2,if the fans run, then ,check the lamp or lamp ballast
turn on the projector ,at the same time ,if you can hear a continuous beep beep sound (the ballast igniting the lamp)
means the lamp may be fault,and other parts is working well



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Nov 19, 2012 | NEC MT850, MT1050, MT1055, MT1056...

1 Answer

I have an nec mt850, my picture is upside down...how do i fix that?


Unit is probably set for ceiling mount or reverse screen projection. In the options menu there will be settings to alter it back to normal aspect.

Apr 28, 2012 | NEC MT850, MT1050, MT1055, MT1056...

2 Answers

I have a NEC mt1055 and the unit just had new bulb put in here and it has the power and standby light come on and the fan doesn't turn on here and the standby light is yellow and status is red


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.

Oct 07, 2009 | NEC MT850, MT1050, MT1055, MT1056...

1 Answer

Red coured picture Nec MT850


I don't think it's globe related, I'd be getting a quote on the electronics.

Mar 23, 2009 | NEC MT850, MT1050, MT1055, MT1056...

1 Answer

I turn my mt850 on & the picture is blue


You most likely have a defective blue LCD panel which is a common problem for a projectors this old.
This is an exspensive repair if parts are still available, probably not worth fixin.

Mar 17, 2009 | NEC MT850, MT1050, MT1055, MT1056...

2 Answers

My NEC MT850 projects with a pink picture you can still see image but it is a very bright pink.


A pink image normally means a loss of green signal.If you are using Computer input you should try replacing your input cable to see if this is the problem. If it is pink with video also then the projector most likley has a internal problem.

Mar 05, 2009 | NEC MT850, MT1050, MT1055, MT1056...

1 Answer

NEC MT1050 Lamp Error


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.

Feb 05, 2009 | NEC MT850, MT1050, MT1055, MT1056...

1 Answer

NEC MT1055 Will not power up


Hi there

This sounds like a faulty Ballast ( lamp's power supply ) It will unfortunately need repair or replacement.

Mar 25, 2008 | NEC MT850, MT1050, MT1055, MT1056...

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