Official JVC RS40/X3 Owners Thread - Page 302

2nd bulb. This is the one JVC sent me. 002 v. I thought the hours # was up there from the various posts on the issue here on AVS. Of course as soon as I posted the # it poped a few days later. Just wanted to give some hope to other JVC users I guess.....

V

lmao @ the sacrifices. My neighbor has been looking for their cat for awhile now (joke) ;o)

I will contact JVC today. I tried calling yesterday but got on the phone too late they were closed. East coast time. Also decided to call Mike @ AVS who told me they bulbs they have in stock are 003 w/ the flapper. Guess it never hurts to have more than 1 bulb....

V

What phone number are you guys calling? Any person in particular you guys are talking to there?

I only have 574hrs on my original bulb and this is what it looks like. I know if i turn it on it will blow. Last viewing got extremely dim. My rs1 with 2000+ hours on the bulb was 10x brighter!

It really looks like they are melting from that and other pictures of failing bulbs. The reflective back is completely destroyed.

Yeah, that would make sense. The "fix" they have implemented with the newer bulbs seems to be targeted at better air flow through the bulb housing.

It would be interesting to see pictures of working bulbs around the 400-500 hour mark to see if they show any signs of this type of deterioration. That might tell us if it is gradual or rapid.

I take that back.... The PJ is now not starting. I get the double red light and orange led flashing. I assume the lamp is toast. Good thing I received a shipment confirmation from Fedex and I should get it Thursday. I hope it's the new model.

Edit: I just took the old lamp out. It was a -002 model.

Exactly what happened with mine, first too dim and now not starting anymore.

The more I look at that picture i posted, I can't stop but wonder if it would be possible to mount a custom heatsink to the back of the bulb? It seems like majority of the problem is adequate cooling for the life of the bulb. I don't think it would be to difficult to fabricate something to fit on. Issue would be keeping it snug and making sure it doesn't alter the air flow.

Has anyone tried doing this on other projectors? I might have to try this out with my RS1

Better yet, JVC should re-design the bulb/housing to fix this issue. I really hope the "flapper" solves the issue, but I have my doubts. It seems too much like a quick add-on (i.e. cheap) fix. I think the whole bulb unit needs to be re-designed from scratch.

JVC owners who also use Lumagen Radiance video processors may want to take note that Lumagen issued a recent firmware update that allows for the conversion of any input 3D format to any other valid 3D format. Since JVC projectors have really lousy performance with lots of crosstalk on side-by-side 3D from cable, for example, you can now use the Radiance to convert SbS to 1080p24 frame-packed 3D (just like Blu-ray) and may get better results.

The firmware currently has some issues with the conversion of top/bottom 3D to frame-packed, but Lumagen says they're working on that and should have another update soon.

Conversion of side-by-side 3D to frame-packed works pretty well, so long as you set your output format to 1080p24 and the deinterlacing mode to Film.

If you look at all the JVC projector bulbs, they all look very similar. Not much has changed. Glass and then a plastic housing. Nothing else to them. I'm not to sure how much air comes through the back of the housing since it's exposed to the maintenance door. Curious to see how much heat is exchanged from the back of the bulb. It may not even exchange that much heat opposed to the front.

My guess is the fan isn't pumping enough cfm. Maybe they changed the reflective coating on the bulb?

My HT is in the basement, which is always kind of chilly, even in the summer. So maybe if there isn't enough air pumping in, at least the air it's getting is cool air. Maybe that will help the situation...

What if you put the pj in high altitude mode? How much more cfm will it produce. I wonder if that would improve bulb life or not.

We didn't have any bulb issue when the watts were at 200,,,now at220,,,things are going south?

I don't think the increase in wattage is the source of the problems. Previous to the 2011 models JVC used Philips for their lamp supplier but they switched to some brand X supplier in China starting with the RS40/50/60 -- X3/7/9 models. I suspect this was done to save a few $$ per lamp.

Yeah, just picked up my replacement lamp at the post office. Can't wait to install it!

Received my 3rd lamp today. It's the new model -003 with the flapper. So:

Original Lamp: 1250 hours - Replaced free of charge by JVC (too dim)
Second Lamp (-002): 600 hours - Replaced free of charge by JVC (too dim then quit working)
Third Lamp (-003 With Flapper):????? I'm taking bets

Jez... this new lamp is a light canon! Holy crap... 198 lux in HIGH compared to 151 when my second lamp was brand new...

I wonder if that was the luck of the draw, or if all the 003 are brighter.

I saw wide variances between 2 replacement lamps. The one with the higher output dropped off very quickly in the first 25 hours. Zbroke please keep us posted as it breaks in a bit.

Just unboxed and installed the lamp but no time to try it out yet. It's a -003 with flapper as well. The old lamp doesn't look good, like the one another forum member posted a couple pages ago, all burned up inside. As soon as I can try it out I'll measure the brightness as well.

I got a version 3 bulb today. Really bright. I don't remember the first one being this bright from the start but I have no base measurements.

I'll have to check out a 3D movie to see if there's any ghosting. Man I can't wait to have a laser/LED pj that stays this bright all the time.

I've got a bulb with around 400 hours on it which is measuring at 17% loss compared to new. I would consider that to be fairly good, relative to others.

Just eyeballing the bulb over the weekend, I don't see any signs of obvious deterioration of the reflective backing as seen in the other poster's picture. However, I do see some slight discoloration near the open end. Not sure if that is there on a new bulb, or if it is responsible for some of the 17% loss.

I was wondering the same thing, and decided to put mine into high altitude mode recently. I figure it can't hurt (other than the extra noise).

hey guys, just checking in, my second bulb, is now close to unbearable to watch. It's an 002 version and I havent checked lamp hours yet, but I would say it is only around 3-400 hours. Possibly even less than that. It hasnt blown yet and has only been in high lamp for MAYBE 2 movies. what crap.

So I guess I will be getting in touch with JVC regarding an 003 lamp. but what does this new "flapper" do? just allow more air in?

The flapper looks like it's designed to increase the pressure of the air entering the lamp chamber.

For example, if you have water flowing threw a 12 inch pipe for a few feet, then change the diameter of that pipe to 6 inches before it exits. The water coming out will have more pressure than if you used a 12 inch diameter pipe for the entire length of the pipe.

It remains to be seen if this will work. I think they should just redesign the lamp completely. Or learn something from Osram SYLVANIA.

agreed, this is rediculous for a $3500 projector.

Its a little disturbing to me that AVS store sells us a B-stock unit that they advertised with the "latest lamp" and it turns out to be a -002. Now I'm torn between running it in high altitude mode to attempt to get the most out of it, or running in in normal to get the low noise level that i bought into. Regardless, I think I'll start physically checking my lamp on a periodic basis for that crazing on the reflector.

A friend of mine has the RS55 and his lamp just went dim and then died after 500 hours. http://www.avsforum.com/avs-vb/showt...1#post21910285

I love this projector, but I have a feeling the bulb is going to let me sit one of these days.

Keep in mind that we don't really know what the 002 and 003 mean. JVC has never said that the 003 bulbs are the new ones. If fact, I think I read a comment on here before that JVC has said there are several versions of the "new" bulb. So "002" doesn't necessarily mean "old".