JVC owners, increase your brightness!

[jostenmeat]

I did read about at least one Pana owner saying it works well, if without measurements. There have been a good number of JVC owners measuring about a doubling of lux or fl after simply cleaning the prism that the bulb fires through, with a camera lens grade microfiber and solution. I think the experimentation at AVS started with this article . . . .

http://translate.googleusercontent.com/translate_c?hl=fr&ie=UTF-8&sl=de&tl=en&u=http://www.beisammen.de/board/index.php?page=Thread&threadID=103085&prev=_t&rurl=translate.google.com&twu=1&usg=ALkJrhj5pv0skP2kE4brXEv-pwSQRKQ7MQ

linked from here
http://translate.google.com/translate?js=y&prev=_t&hl=fr&ie=UTF-8&layout=1&eotf=1&u=http://www.grobi.tv/seiten/neuigkeiten/news-aktuell/jvc-reinigung.html&sl=de&tl=en

http://translate.google.com/translate?js=y&prev=_t&hl=fr&ie=UTF-8&layout=1&eotf=1&u=http://www.cinemotion.biz/noticia_detalle.php?id=1054&ccat_n=0&sl=fr&tl=en

. . . which were translated from here . . .

http://www.grobi.tv/seiten/neuigkeiten/news-aktuell/jvc-reinigung.html

http://www.cinemotion.biz/noticia_detalle.php?id=1054&ccat_n=0

Don't have a translation for it, but you can see some before/after pics in this article written in French . . .

http://www.homecinema-fr.com/forum/viewtopic.php?p=173629469#p173629469

On a side note, the new DVDO Duo with onboard CMS has caught my eye!
http://www.anchorbaytech.com/products/systems/iscanduo.php

 

[rmk]

Have you tried this yourself? I'm going to give it a try after 100 hrs or so.

 

[jostenmeat]

Have you tried this yourself? I'm going to give it a try after 100 hrs or so.

I have not, rmk. I haven't yet found the time to stop by the local camera store. Hopefully soon.

I don't remember seeing any pics of the RS1's prism, but I think someone was saying to use some sort of extender to reach it. Not something like a screwdriver of course, but maybe I'll use a pencil's eraser, assuming it's long enough.

 

[rmk]

There was a good thread on this topic on AVS but i can't find it now

 

[jostenmeat]

I have a bit of shopping frustration. So, let's see, I've called a few medical supply stores, visited CVS once and Walgreens twice, called a few camera places, and even visited one. The camera store specializes in Canon repair, and they gave me an envelope of cleaning papers, which was nice of them. They told me they just use alcohol.

The highest % of alcohol that the pharmacies carry is 91%. I figure that 9% of purified water cannot be good for electronics. I wonder if 99% isopropyl is good enough. I might order from Amazon, because it seems all of the medical supply stores near me are very specialized, whether motorized wheelchairs, or cancer pills, or whatever.

Here is the Amazon 99% isopropyl selection:
http://www.amazon.com/s/ref=nb_sb_ss_sc_0_8?url=search-alias=aps&field-keywords=99+isopropyl+alcohol&sprefix=99%+isop

One guy from the AVS thread used this Nikon pen:
http://www.amazon.com/Nikon-7072-Lens-Cleaning-System/dp/B00006JN3G/ref=sr_1_1?ie=UTF8&s=electronics&qid=1271540007&sr=8-1

I think I'd really prefer to use microfiber, and the best solution available. I definitely would not prefer to use something meant for camera parts cleaning; I'd prefer a solution that is good enough for the lens itself.

Who know this would be so difficult!?!

Someone, HELP ME.

There was a good thread on this topic on AVS but i can't find it now

Just to make sure, it's not the thread that I embedded in "JVC owners"?

I did read about at least one Pana owner saying it works well, if without measurements. There have been a good number of JVC owners measuring about a doubling of lux or fl after . . .

 

[rmk]

Just to make sure, it's not the thread that I embedded in "JVC owners"?

Thanks for your always informative posts . The Thread I was referring to was this one.

 

[skers_54]

If you're looking for 100% pure alcohol, you'll need to order from a biomedical/chemical supply company. The local medical supply places won't have it as it's used for research rather than treatment. You can't distill past 190 proof so advanced techniques are required. Here's one such place. As you can see, it's not cheap.

http://www.sigmaaldrich.com/chemistry/solvents/products.html?TablePage=14577624

The stuff it sounds like you want is anhydrous alcohol. Anhydrous basically means that there is no "free" water in the solution -- it's all chemically trapped within the alcohol.

I don't know for sure if you need to use this type of stuff, but my gut tells me you don't. In the real world, the energy released from the alcohol evaporating is going to be enough to evaporate the small amount of water in it. As far as the electronics, it would be just as bad to spill alcohol on them as water since they are similar chemically. Alcohols are recommended because they evaporate fast and won't cling to the surface like water.

99% isopropyl alcohol should work fine. It evaporates fast, has very low water content, and is easy to find.

 

[jostenmeat]

So, the 99 isopropyl is in transit. Last night, I cleaned my screen with microfiber. Depending on how it looks when I remove the lamp assembly, I will try to use microfiber on the prism, etc, but I know at least a few were using Q-tips. I'm hoping that between the screen cleaning and prism cleaning, that I might be blinded with science.

 

[Sherardp]

I posted in that thread and can say that it actually works. I noticed huge improvement in my RS10 brightness. I used cleaning papers to clean the prism and the lamp. My lamp had like marks from perhaps when it sparks. Once cleaned it the improvement was noticeable right away. I just ordered an Eyeone since I'm due for calibration. Give it a try.

 

[gobrigavitch]

There was a good thread on this topic on AVS but i can't find it now

It's in the digital high end projectors

I can't post a link yet, but the title is JVC owner's please post your experiences with bulb dimming.

 

[gobrigavitch]

I just got my RS10. What's the earliest that anybody's noticed a difference?

 

[jostenmeat]

So, last night I finally got around to it. I haven't fired her back up yet, though, as I also rinsed my filter while I was at it, and just wanted everything dry. Super duper simple. Most straight forward tip I've picked up for AV, I think.

When I removed the lamp assembly, I looked at it to see if it needed cleaning, and I thought, gee looks perfectly clean to me, I'll just check out the prism. Well, the prism also looked clean! (None of that glazy, smoky look that I've seen a few pics of). I decided that heck I came this far, bought the 99%, might as well. Well, there was a good amount of gunk on it! At least going by what was taken off by my microfiber. I did indeed use a pencil's eraser to help me reach.

So I thought I better do the lamp assembly as well, because obviously my eyes can't tell, and there happened to be either nothing to extremely little coming off of it.

I could visibly watch the alcohol evaporate on the prism, shortly after cleaning applications. I may or may not follow up with subjective impressions, most likely not. Too bad I don't own the measuring equipment to offer a real world lumens increase. I've logged very roughly about 1300 hours on the PJ itself (2nd bulb now).

 

[Sherardp]

So, last night I finally got around to it. I haven't fired her back up yet, though, as I also rinsed my filter while I was at it, and just wanted everything dry. Super duper simple. Most straight forward tip I've picked up for AV, I think.

When I removed the lamp assembly, I looked at it to see if it needed cleaning, and I thought, gee looks perfectly clean to me, I'll just check out the prism. Well, the prism also looked clean! (None of that glazy, smoky look that I've seen a few pics of). I decided that heck I came this far, bought the 99%, might as well. Well, there was a good amount of gunk on it! At least going by what was taken off by my microfiber. I did indeed use a pencil's eraser to help me reach.

So I thought I better do the lamp assembly as well, because obviously my eyes can't tell, and there happened to be either nothing to extremely little coming off of it.

I could visibly watch the alcohol evaporate on the prism, shortly after cleaning applications. I may or may not follow up with subjective impressions, most likely not. Too bad I don't own the measuring equipment to offer a real world lumens increase. I've logged very roughly about 1300 hours on the PJ itself (2nd bulb now).

Start simple and buy yourself an EyeOne LT and use the HCFR software.

 

[jostenmeat]

Start simple and buy yourself an EyeOne LT and use the HCFR software.

Too many other things I want to buy. I don't think the I-1 can do all that much for me right now, anyways. Just a guess.

BTW, I know I said that I probably wasn't going to say anything, but now that I'm posting, might as well: The cleaning brightened the image so much, subjectively, it was like putting in a brand new bulb.

The easiest things for me to compare (not side by side of course), are the blue home screen of Pana BDP, and the various FBI warnings.

It brightened it up so much, that I wonder how much longer I could have used the previous bulb for . . .

 

[celiaweston]

jvc

congrats jvc owners.you have done a great job.