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Author Topic: LAMP UNLIT ERROR
Uugantsetseg Tsolmon
Film Handler

Posts: 13
From: Ulaanbaatar city, Mongolia
Registered: Sep 2015


 - posted 10-27-2015 06:34 AM      Profile for Uugantsetseg Tsolmon   Author's Homepage   Email Uugantsetseg Tsolmon   Send New Private Message       Edit/Delete Post 
Hello,

Projector turn off because lamp unlit error. But lamp is still working. What is the reason? Please tell me. Thank you :-)

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 10-27-2015 10:35 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Please always specify the equipment you are interested in. That is, What brand and what model and if there is an error with a number, use the error number.

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Uugantsetseg Tsolmon
Film Handler

Posts: 13
From: Ulaanbaatar city, Mongolia
Registered: Sep 2015


 - posted 10-27-2015 11:01 AM      Profile for Uugantsetseg Tsolmon   Author's Homepage   Email Uugantsetseg Tsolmon   Send New Private Message       Edit/Delete Post 
I'm really sorry, This is my first post.

Our projector is NC2000C and our lamp is ushio DXL-40SN/L
While our projector is playing, Projector turn off because "Lamp unlit" error. When we turn on projector and lamp after cooling, that's ok.
So, what was happening?

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 10-27-2015 02:58 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Maybe just a faulty lamp? First thing is to replace it and see what happens.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 10-27-2015 06:41 PM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
Nope - first thing is to wait for this to happen again ;-)

- Carsten

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 10-28-2015 03:24 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Lamp unlit signifies two possibilities. 1. A bad lamp. 2. A bad igniter. Always do #1 first. If the problem comes back then it's likely the igniter. If you have more than one NC-2000 at a site you can move the igniters between different projectors and see if the issue follows the igniter. Igniter is VERY easy to swap out.

A bad rectifier gives completely different errors and indications.

Mark

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 10-28-2015 04:50 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Would a bad igniter turn off a lamp which is already lit?

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 10-28-2015 09:11 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Marco, Likely not unless the igniter has experienced some high heat issue like a loose DC connection.
In an NEC projector a Lamp Unlit error can happen if then system tries to light the lamp but it doesn't light for any number of reasons. For instance, a lamp that has lot it's seal will also cause it.

Mark

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 10-29-2015 04:49 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Exactly. The original post says the projector shuts down during the show.

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Dave Macaulay
Film God

Posts: 2321
From: Toronto, Canada
Registered: Apr 2001


 - posted 10-29-2015 11:44 AM      Profile for Dave Macaulay   Email Dave Macaulay   Send New Private Message       Edit/Delete Post 
Why would it shut down? Does he mean just the lamp is off with that error up?

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Jack Ondracek
Film God

Posts: 2348
From: Port Orchard, WA, USA
Registered: Oct 2002


 - posted 10-29-2015 01:35 PM      Profile for Jack Ondracek   Author's Homepage   Email Jack Ondracek   Send New Private Message       Edit/Delete Post 
Might be a good idea to have a visual look at the lamp.

Last year, one of my Barcos would fire off the lamp. Then, after a few seconds of what seemed like OK operation, the lamp would shut down and I'd get a red tail light. Light it again and the cycle would repeat.

Turned out I had a gassy bulb, though it wasn't obvious until I pulled the lamp out to have a look.

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 10-29-2015 01:59 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Dave,

The projector senses the lamp has turned off. If this is not followed by other errors (temperature, ballast, coolant) the first step is to replace the lamp as that should mean that the lamp has flamed off on its own.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 10-29-2015 04:21 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Yep! Still betting it's just a bad lamp...

Mark

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Uugantsetseg Tsolmon
Film Handler

Posts: 13
From: Ulaanbaatar city, Mongolia
Registered: Sep 2015


 - posted 11-02-2015 07:40 PM      Profile for Uugantsetseg Tsolmon   Author's Homepage   Email Uugantsetseg Tsolmon   Send New Private Message       Edit/Delete Post 
Hello,

Thank you for all your posts. Now our projector has worked OK.
We reset "bulb alignment setting", solved the problems.
So We think that "Lamp unlit" error reason is incorrect location of the lamp.

Regards,
Uugantsetseg

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 11-03-2015 05:35 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
It's nice when everybody's advice is so kept into consideration! [Smile]

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