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JVC 2011-2012 lamp measurement project - Page 8

post #211 of 390
JVC UK are replacing my X90 (in 2 weeks) after reporting the lamp loss to them according to my dealer.......
post #212 of 390
They are replacing the entire projector and not just the lamp??
Seems a bit unnecessary for what appears to be a ubiquitous issue.
post #213 of 390
Quote:
Originally Posted by coderguy View Post

They are replacing the entire projector and not just the lamp??
Seems a bit unnecessary for what appears to be a ubiquitous issue.

Even the dealer was surprised perhaps something else is causing the lamp to fail?
post #214 of 390
Perhaps they want to look at the service menu for lamp hrs data? Low/High lamp, etc.

They might be able to gather other data too, like operating temps, etc.

And/or check the operational status/performance of the fans, etc.
post #215 of 390
Perhaps, but they'd sure be looking at a lot of RS-40/RS-45's if they really needed to do that, anecdotally it doesn't seem many can exceed 1000 hours in lamp usage. A few people get lucky...
post #216 of 390
So does that mean I need to contact jvc?
post #217 of 390
I would call Epson, as I heard their support is better

Kidding aside, yes it couldn't hurt to call JVC...
post #218 of 390
Haha.

JVC customer : Hi I have a JVC so and so which is having early lamp dimming issues
Epson Tech Rep: Sorry to hear that Sir, we don't currently have any JVC relacement lamps, but we'll overnight you a new JVC so and so
JVC customer : But you're Epson
Epson Tech Rep : Yes, but since no other companies want to stand behind their products we have chosen to be THAT MUCH MORE AWESOME
post #219 of 390
Quote:
Originally Posted by sk576c View Post

Settings:
Aperature : 0
6500k
120" 1.1 gain screen w/ 14'5" throw distance
Color Mode : Standard
100 IRE pattern
Center of the screen
Projector only used in Low Lamp

Lux Measurements
100 hrs : 179 (1/3/2012)
200 hrs : 155 (1/17/2012) ~ 13.4 % drop from 100 hr mark
300 hrs : 123 (1/29/2012) ~ 20.6 % drop from 200 hr mark
400 hrs : 86 (2/18/2012) ~ 30.1 % drop from 300 hr mark

So from 100 hrs to the 400 hr mark I've dropped roughly 52%.... is this close to what others are seeing? I do not watch any 3D, and my basement is completely light controlled. I had a movie night this past weekend and before everyone arrived I tried the lamp in normal/high, it was definately brighter, but way too loud. So I put it back into low lamp mode and raised the aperature from my normal -15 up to -10 so the image had a bit more brightness.

I've previously owned Epson projectors. My last pj, an Epson 8500, had issues with lamp failures around 700-800 hours on 3 consecutive lamps. Knowing he lamps would die and Epson would simply send me a replacement I always ran it in high. It wasnt usually until the 600+ hour mark that I noticed the kind of brightness drop I've already noticed on my RS45 . I think I just passed the 90 day lamp warranty on the JVC too

I just checked and you said you purchased this pj on Dec 22 or thereabouts. By my count, that is around 60 days which is under the 90 day warranty.

400 hrs, man you watch a lot of TV.
post #220 of 390
So I called JVC just now, told him that my RS45's brightness has dropped roughly 57% now at the 425 hr mark as of last night. The JVC tech told me that the projector would have to go to their service department, ie it would need to be shipped to them and hence leaving me without a projector, so that they can check the unit out and determine with the issue is.
post #221 of 390
Now I know why they do it, to make it more difficult to get a new lamp...
post #222 of 390
Quote:
Originally Posted by sk576c View Post

Settings:
Aperature : 0
6500k
120" 1.1 gain screen w/ 14'5" throw distance
Color Mode : Standard
100 IRE pattern
Center of the screen
Projector only used in Low Lamp

Lux Measurements
100 hrs : 179 (1/3/2012)
200 hrs : 155 (1/17/2012) ~ 13.4 % drop from 100 hr mark
300 hrs : 123 (1/29/2012) ~ 20.6 % drop from 200 hr mark
400 hrs : 86 (2/18/2012) ~ 30.1 % drop from 300 hr mark

So from 100 hrs to the 400 hr mark I've dropped roughly 52%.... is this close to what others are seeing? I do not watch any 3D, and my basement is completely light controlled. I had a movie night this past weekend and before everyone arrived I tried the lamp in normal/high, it was definately brighter, but way too loud. So I put it back into low lamp mode and raised the aperature from my normal -15 up to -10 so the image had a bit more brightness.

I've previously owned Epson projectors. My last pj, an Epson 8500, had issues with lamp failures around 700-800 hours on 3 consecutive lamps. Knowing he lamps would die and Epson would simply send me a replacement I always ran it in high. It wasnt usually until the 600+ hour mark that I noticed the kind of brightness drop I've already noticed on my RS45 . I think I just passed the 90 day lamp warranty on the JVC too

this is exactly the root cause, why I switched to Sony VW95! I always had issues with several lamps and early dimming.

"They fixed it?"

NO WAY!!

I is really frustrating for the JVC customers that they have this issues again! Just to compare:

I have currently 350h on my VW95 and the lamp dropped from 250 lux to 225! This is 10% and this is expected. The lamp starts to drop after 280h or so....

All my JVC projectors had minimum of 50% loss in the same time!!!

Glad that my gut feeling prevent me to purchase again a JVC

To bad that the issue is still exists!!!!
post #223 of 390
The most annoying part to me is that they make you ship your entire projector back instead of just the lamp. This appears to be nothing more than a political stunt that someone decided would deter people from wanting their lamps replaced under 90 days. I certainly do not want to ship an otherwise perfectly functioning projector back to have them "look at it" just to get a new lamp, that is pretty annoying and I am disappointed in this policy. When and if I call them, I will tell them I will ship you the lamp, but I do not want to ship the projector given all the things that can go wrong in shipping.

There is no need for a single person to ship them their projector, if there is a MFR wide defect and they are really trying to learn about it, trust me when I say they have plenty of projectors in their hands already to look into it, they don't need more
post #224 of 390
I'm so glad I switched my preorder from the 55 to the 95. Seems like the JVC bulb is designed to be bright just long enough to generate good magazine reviews. My 95 bulb is staying nice & bright, which I guess is why there's no thread to measure it. And it's cheap enough I'll probably replace it every 1000 hrs anyway, by which time it may have lost 20%.
post #225 of 390
Quote:
Originally Posted by coderguy View Post

The most annoying part to me is that they make you ship your entire projector back instead of just the lamp. This appears to be nothing more than a political stunt that someone decided would deter people from wanting their lamps replaced under 90 days. I certainly do not want to ship an otherwise perfectly functioning projector back to have them "look at it" just to get a new lamp, that is pretty annoying and I am disappointed in this policy. When and if I call them, I will tell them I will ship you the lamp, but I do not want to ship the projector given all the things that can go wrong in shipping.

There is no need for a single person to ship them their projector, if there is a MFR wide defect and they are really trying to learn about it, trust me when I say they have plenty of projectors in their hands already to look into it, they don't need more

This was always requested by JVC. I had a HD1, HD100, HD750, X3.... all of them had the lamp problem and several other problems. I only was shipping my PJ to the service center and back!

I hope my Sony will make me happy after so many years with buggy JVC's...
post #226 of 390
A question for those of you tracking lumens over hours of use and also have the tools to measure gamma - have you seen any change in the gamma as you get some hours (e.g., 100+) on the lamp?
post #227 of 390
Quote:
Originally Posted by sk576c View Post

So I called JVC just now, told him that my RS45's brightness has dropped roughly 57% now at the 425 hr mark as of last night. The JVC tech told me that the projector would have to go to their service department, ie it would need to be shipped to them and hence leaving me without a projector, so that they can check the unit out and determine with the issue is.

I would fight this tooth and nail. These projectors are delicate. They should not be shipped unless there is a good reason to believe that the problem lies with the projector itself. These lamps are garbage and whoever manufactures them has no concept of quality control or just is incapable of manufacturing the lamp to specification. JVC is sourcing these lamps from an incapable manufacturer and they know it!! Make it known that you have no intention of sending them a functioning projector and risking real damage to it. Tell them you will send them the lamp for testing and that you want them to cross-ship one that you can use in the meantime. Remind them this isn't a $100 toy. It is is a $3,000 projector that has widespread issues. Also make sure they know you have no intention of covering shipping in any event. If need be take your complaint up the food chain until someone hears you. This is unacceptable...
post #228 of 390
Thread Starter 
Just a note, sk576c never signed up for the JVC lamp measurement project, so we should not draw any conclusions about failure rate based on data posted by sk576c.
post #229 of 390
Thread Starter 
1) 2012-02-23 date of measurement
2) RS45
3) service menu (source of 100IRE screen)
4) 302 hours on lamp
5) Normal lamp used almost exclusively (99%)
6) Normal lamp during measurement
7) 0 aperture during measurement
8) 30min warm-up before measurement
9) 648 lumens measured (9-point technique, LX1010B meter)

That is 84% after 302 hours.
post #230 of 390
Just bought a JVC RS45U it has 1 hour on it. I love the picture and have an appointment to get it calibrated. With all of the bad bulb talk I'm wondering if I made a mistake? Does anyone know we're I can buy a bulb cheap?
post #231 of 390
Quote:
Originally Posted by travis-g View Post

Just bought a JVC RS45U it has 1 hour on it. I love the picture and have an appointment to get it calibrated. With all of the bad bulb talk I'm wondering if I made a mistake? Does anyone know we're I can buy a bulb cheap?

there are no known aftermarket lamps for last year or this years JVC's (same lamp)
post #232 of 390
Wow, this is depressing to read. Is literally everyone (who has reported) experienced ridiculous brightness drops in the bulb too soon?

(My RS20 didn't have that problem as far as I could tell. One more reason maybe I should have hung on to my RS20 longer...)
post #233 of 390
Thread Starter 
Quote:
Originally Posted by R Harkness View Post

Is literally everyone (who has reported) experienced ridiculous brightness drops in the bulb too soon?

No.

What were you expecting?
post #234 of 390
So if I start out at -15 and gradually raise it to 0 on normal mode and then at the end go to high power lamp setting how long of a life can I hope to get out of the bulb?
post #235 of 390
i'm not sure why sk576c's data isn't as valid as anyone else, he has more hours than most people who posted by 100+ hours. His loss is the same as my RS50 during the first 400 hours.

@ sk576c - escalate the call to a field engineer if necessary, definitely don't send in the projector. it's not like it's the first lamp they ever had a call on going bad this soon.

please let us know how you make out.
post #236 of 390
Thread Starter 
Quote:
Originally Posted by zombie10k View Post

i'm not sure why sk576c's data isn't as valid as anyone else, he has more hours than most people who posted by 100+ hours. His loss is the same as my RS50 during the first 400 hours.

Why would you think his data is invalid?
post #237 of 390
Quote:
Originally Posted by jim2100 View Post

Just a note, sk576c never signed up for the JVC lamp measurement project, so we should not draw any conclusions about failure rate based on data posted by sk576c.

I may have misunderstand your statement above. Obviously it's only one sample, but it's similar to how my RS50's lamp was @ the same hours.

My second RS55 only has 6 hours on the lamp and starting to keep track of it now.
post #238 of 390
Thread Starter 
Quote:
Originally Posted by zombie10k View Post

I may have misunderstand your statement above.

I don't know how I could have been more clear. What part of "sk576c never signed up for the JVC lamp measurement project, so we should not draw any conclusions about failure rate based on data posted by sk576c" is difficult to understand?
post #239 of 390
Thread Starter 
Quote:
Originally Posted by zombie10k View Post

My second RS55 only has 6 hours on the lamp and starting to keep track of it now.

I do have you on the signup list, but I haven't seen any measurements posted. Are you going to post your 6 hours measurement soon?
post #240 of 390
What because one guy doesn't sign up for this thread then you should discount his lamp problems.lol, wow take a pill pal, who cares if you're the thread starter, ridiculous.
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