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Discussion Starter · #1 ·
My wife and I were watching the extended version of LOTR Return of the King...halfway through disc two, the picture starts "pulsating." We finish the movie and I go to watch HDTV and it's teh same thing: pulsation. WTF? I just returned DLP because of rainbows and now I have flicker?


Is there something I can do about this? I'm about at the end of my rope. :(
 

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I am sure an owner of the same projector as you will comment soon. The natural thing to suspect is a bad bulb or one that is not well seated in its socket. The supply with bulbs have long been struggling to meet the demand. Some suspect that quality control has gone down as a result.


Wait for advice here or contact your reseller.
 

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I have the HX2U as well and that same problem occured with my unit out of the box according to William P who calibrated it. He had to replace the bulb (under warranty of course) to rectify the problem.
 

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Discussion Starter · #4 ·
Argh. Man am I having horrible luck thus far. *sigh*. Okay...will go get a warranty replacement then. Where is a good place to buy backup lamps for this projector, btw?
 

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Quote:
Originally Posted by rickeame
Argh. Man am I having horrible luck thus far. *sigh*. Okay...will go get a warranty replacement then. Where is a good place to buy backup lamps for this projector, btw?
In my case, Jason and William took care of it.


I would suggest you speak to the person who sold it to you.
 

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How many hours do you have on the lamp? New lamps do have a tendency to flicker. If you have over 24 hours on it now then it's probably defective. Talk to your dealer or JVC for a warranty replacement.


What is the environment the projector is in - hot, normal, or cold? Believe it or not, if the projector is too cold, for example near an A/C duct, that can cause flicker.


William
 

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Discussion Starter · #7 ·
Hmmm, it's RIGHT next to the vent. Weird. I"ll get a thing to redirect the air and see if that fixes it.
 

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Discussion Starter · #8 ·
Okay, update: 60 hours on the bulb. Moved the vent pointing away from it, and we'll see if tonight things are different watching a movie.
 

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Discussion Starter · #9 ·
Update: it's still doing it. 90 lamp hours at this point, and it keeps dimming and brightening in a pulsing manner. Almost like what my Mitz used to do with that auto bright/contrast feature (IRIS) when it got confused about the environment it was in. I have called JVC and am waiting for an answer on my replacement lamp.
 

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Rick,


Get JVC or your dealer to replace it. It's a defective lamp.


When you get the replacement, install it, re-hang the projector, and put 20-24 hours on it to break it in. Do *NOT* operate the projector right-side-up (assuming you are using a ceiling mount) at any time.


William
 

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Quote:
Originally Posted by wm
Do *NOT* operate the projector right-side-up (assuming you are using a ceiling mount) at any time.


William
That's interesting. Why wouldn't you want to operate the projector right-side-up if you're planning on ceiling mounting it?


Tim
 

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Sounds like lamp flicker issue. It should be covered by your dealer under warranty. I have come across a few of these and they are taken care of.
 

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I had the same problem appear at 200 hrs. Jason suggested I run the pj for 24 hrs straight. I did this and the problem disappearrred. Something about stuff on the filament. I guess the filament burns up over time. The combustion products mostly settle on the cooler part - the glass of the bulb. But some may settle back on the filament when the pj is turned off. The products may affect the function of the filament or perhaps obscure the filament output as they re-vaporize.



Have a film fest with music video dvds. The lights on those shows flicker and flash a lot so you wont even notice the little bit of flicker your bulb is adding.
 

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We have tested this issue and the last three replacement bulbs have the same problem. I'm thinking JVC had a bad run of bulbs. Spoke with JVC pro field engineer today and he was not aware of the problem.
 

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Quote:
Originally Posted by karos
Something about stuff on the filament. I guess the filament burns up over time. The combustion products mostly settle on the cooler part - the glass of the bulb. But some may settle back on the filament when the pj is turned off. The products may affect the function of the filament or perhaps obscure the filament output as they re-vaporize.
There's no filament in UHP of Xenon lamps.

They're short arc lamps.
 

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Hello,


I had exactly the same flicker on me previous SIM2 pj.

The cause was a defective component signal output from my DVD player.


Anders
 

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Quote:
Originally Posted by bstrong
We have tested this issue and the last three replacement bulbs have the same problem. I'm thinking JVC had a bad run of bulbs. Spoke with JVC pro field engineer today and he was not aware of the problem.
Odd, because much of JVC is aware of the problem.


We have discovered that at least some of the flicker problem is caused by how the lamp is first used, inverted or right side up. There is some indication that the lamps are run in by the manufacturer or JVC, still trying to get confirmation on this.
 
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