Official JVC RS25/HD950 Owners Thread! - Page 34 - AVS Forum
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post #991 of 1013 Old 02-17-2014, 05:05 PM
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JVC RS25 Projector

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post #992 of 1013 Old 02-17-2014, 05:10 PM
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True that. I may just get my money back. Only out the cost of the warranty. It was a risk and I lost.

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post #993 of 1013 Old 02-17-2014, 05:56 PM
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Quote:
Originally Posted by dreamtheatre View Post

Yes. It is under Squaretrade warranty after 30 days. Will try repair route first.

I wonder whether the 30 day delay is because they expect one would return an item to the seller if it has a problem right away?

Did you buy it on ebay or, if not, how did you get the squaretrade warranty added?
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Originally Posted by techman707 View Post

The repair route? That will be interesting, since JVC's "repair cost" is probably MORE than the current value of the projector. rolleyes.gif

Yes, it will be interesting. I hope dreamtheatre keeps us updated.

I think in some cases squaretrade simply buys the current version of the item if the repair cost is too high -- or refunds the purchase price, at their discretion.

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post #994 of 1013 Old 02-17-2014, 06:03 PM
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Purchased on Ebay. No returns which probably explains the very low price. I purchased the warranty after purchase. You must wait 30 days to send it in. I think I will just be offered my purchase price refunded, but one can hope. I may try overscanning the image to see if I can get rid of the strip as a stop gap measure. Will keep you guys updated.

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Panasonic TC-P65VT60 Display

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Pioneer Elite SC-67 Receiver

Pioneer SP-FS52 (2), SP-C22 (1), SP-B22 (4) 7.1 Speaker System

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post #995 of 1013 Old 02-17-2014, 07:02 PM
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If the issue wasn't described in the auction you have every right to return the item at the buyers expense. Even if he listed it as 'no returns'. Ebay gauruntees purchases now. The 'no return' listings are only if the item arrived as described.

Unless you want to keep it contact the seller to see if he'll take it back, if not you can open a case with eBay and dispute the purchase.
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post #996 of 1013 Old 02-17-2014, 08:45 PM
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I sent him a message. We'll see what he says. Overscan at 2.5% eliminated the magneta strip; of course that is not a perfect solution, but better than seeing the bar. Ending on a positive, I have never seen a better projected image.

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post #997 of 1013 Old 02-19-2014, 01:04 PM
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I have 800 hours on my original bulb. I'm running it on High. I just bought a OEM replacement from AVS, and plan to replace the orginial one. Why you may ask, since the bulbs are rated for 1000 hours? Well, I'd like a brighter picture, and $325 every 3 years seems like a better deal than buying a new projector. BTW, I have an High Contrast Da-Mat screen that was used to calibrate the RS25. It's a gray screen so I need every bit of light possible for a snappy picture.

Is anyone else swapping out bulbs before end of life?

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post #998 of 1013 Old 02-19-2014, 02:11 PM
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Quote:
Originally Posted by J.Mike Ferrara View Post



Is anyone else swapping out bulbs before end of life?

Although I haven't replaced the bulb in my RS35 yet (because of VERY lows hours), in the past I would routinely change the bulb at or well BEFORE the rated hours. Especially if the picture had begun to dim below certain pre-established Foot Lamberts. In the past, I found that many NON-OEM bulbs, overall, tended to run hotter than original OEM bulbs. I wondered whether these bulbs that ran hotter might cause damage to the optical blocks, or even the image chips themselves. I also wonder about the cooling on different generations of JVC projectors as they have become virtually silent.

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post #999 of 1013 Old 02-19-2014, 02:21 PM
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Quote:
Originally Posted by J.Mike Ferrara View Post

...

Is anyone else swapping out bulbs before end of life?

Absolutely. I'm with you. For me, "end of life" isn't an hour rating, it's when the bulb is too dim... whenever that is.
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post #1000 of 1013 Old 02-19-2014, 02:23 PM - Thread Starter
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Great to see this projector still getting some love. I use mine darn near every day. I replaced my first lamp at around 2800 hrs. I'm on about 1800 hrs with my second lamp. An OEM lamp I purchased thru AVS.

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post #1001 of 1013 Old 02-20-2014, 05:15 AM
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I am going to keep the projector. The seller agreed to pay for my warranty. Right now, the magneta line is small enough to zoom out (less than 2.5%; more like 1.5%) and still provide an excellent viewing experience. If it gets worse, I can always send it in to Squaretrade.

JVC RS25 Projector

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Panasonic TC-P65VT60 Display

Oppo BDP-103 Blu Ray Player

Pioneer Elite SC-67 Receiver

Pioneer SP-FS52 (2), SP-C22 (1), SP-B22 (4) 7.1 Speaker System

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post #1002 of 1013 Old 02-20-2014, 07:20 AM
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Quote:
Originally Posted by dreamtheatre View Post

Purchased on Ebay. No returns which probably explains the very low price. I purchased the warranty after purchase. You must wait 30 days to send it in. I think I will just be offered my purchase price refunded, but one can hope. I may try overscanning the image to see if I can get rid of the strip as a stop gap measure. Will keep you guys updated.

It is a glue failure and will keep getting worse. The projector had the defect when you bought it, how can that be a warranty issue? You should just contest this and get your money back.

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post #1003 of 1013 Old 02-20-2014, 07:24 AM
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It is a glue failure and will keep getting worse. The projector had the defect when you bought it, how can that be a warranty issue? You should just contest this and get your money back.

From what I have read a great many owners have had this issue dealt with under warranty.

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post #1004 of 1013 Old 02-20-2014, 09:15 AM
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From what I have read a great many owners have had this issue dealt with under warranty.
You completely missed his point. Extended warranties don't cover pre existing conditions.
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post #1005 of 1013 Old 02-20-2014, 09:22 AM
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You completely missed his point. Extended warranties don't cover pre existing conditions.

Yep. If that was the case, then people would buy a broken projector off of the bay, buy an extended warranty and then make a claim. If it was possible to do this (not even bothering to get into the ethical argument) then said extended warranty companies would be gone and out of business in a year.

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post #1006 of 1013 Old 02-20-2014, 11:24 AM
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In hindsight, I should have returned the projector straight away, but I was unaware that Ebay protects buyers even though the seller has a no return policy. Found that out after I had already agreed to keep it. I can see where you might think me unethical if I bought a broken projector that I knew was broken, but I had no idea until I turned it on. Based on your comments I am not going to contact Squaretrade about fixing this issue as I definitely see your point. I have contacted Sontec in the UK. EVen with the cost of shipping and repair I still got a great deal (got the projector at a steal...guess I now know why).
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JVC RS25 Projector

84" 16:9 Da-Lite Matte White Model C Screen

Panasonic TC-P65VT60 Display

Oppo BDP-103 Blu Ray Player

Pioneer Elite SC-67 Receiver

Pioneer SP-FS52 (2), SP-C22 (1), SP-B22 (4) 7.1 Speaker System

Rythmik F12 Subwoofer

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post #1007 of 1013 Old 02-20-2014, 12:29 PM
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Originally Posted by dreamtheatre View Post

In hindsight, I should have returned the projector straight away, but I was unaware that Ebay protects buyers even though the seller has a no return policy. Found that out after I had already agreed to keep it. I can see where you might think me unethical if I bought a broken projector that I knew was broken, but I had no idea until I turned it on. Based on your comments I am not going to contact Squaretrade about fixing this issue as I definitely see your point. I have contacted Sontec in the UK. EVen with the cost of shipping and repair I still got a great deal (got the projector at a steal...guess I now know why).

I'd be very interested in your experience with Sontec as I have one of these buggers myself.
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post #1008 of 1013 Old 02-20-2014, 01:57 PM
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Quote:
Originally Posted by dreamtheatre View Post

In hindsight, I should have returned the projector straight away, but I was unaware that Ebay protects buyers even though the seller has a no return policy. Found that out after I had already agreed to keep it. I can see where you might think me unethical if I bought a broken projector that I knew was broken, but I had no idea until I turned it on. Based on your comments I am not going to contact Squaretrade about fixing this issue as I definitely see your point. I have contacted Sontec in the UK. EVen with the cost of shipping and repair I still got a great deal (got the projector at a steal...guess I now know why).

That's a super noble way to approach it. Perhaps the seller will pony up for some that!
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I'd be very interested in your experience with Sontec as I have one of these buggers myself.

+1. I'm almost thinking I pre-emptively sell my current projector -- which is running fine, very well, has a new optical block, is well calibrated and suited for my room -- just to be "on the safe side".

But if Sontec is a solution, then taking the risk and keeping my projector "for years" is a no brainer. Still produces a very good picture, and probably will not need service for years. But I don't feel 100% confident unless there is an option to get a repair, in the unlikely event that I need one, for a reasonable price.

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post #1009 of 1013 Old 02-20-2014, 02:38 PM
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Great to see this projector still getting some love. I use mine darn near every day. I replaced my first lamp at around 2800 hrs. I'm on about 1800 hrs with my second lamp. An OEM lamp I purchased thru AVS.
It's the best projector I've owned, and that's including the Sony Qualia 004!

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post #1010 of 1013 Old 02-20-2014, 10:13 PM
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It's the best projector I've owned, and that's including the Sony Qualia 004!

This day and age that doesn't take much! Projector quality has left the early models in the dust... even the $29,000 ones!
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post #1011 of 1013 Old 04-09-2014, 10:44 PM
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I'd be curious if someone might explain something to this country bumkin.

In the CMS side, what does the "Pause" do.
Why is there a test button at the bottom?
and lets slap this about one more time. I'm accustomed using a Viideo EQ that goes to 100 for adjusting Grayscale . Seems the RS25 adjust 95 and thats it. Why? I know someone said because you adjust 100 when you do Contrast and brightness. But I can still adjust it under grayscale.

Just a bugging point.

And I finally just got my RS25 to calibrate after I found a cable that was bad.

And are there any test disk that show what your suppose to be seeing in the sense of gamma/grayscale? Seems all I do is wonder using a 2.3 gamma for a bat cave IF I'm missing any detail?
I normally will pull up Avatar and check out the scene of him fighting the dogs. Its dark and a lot of detail is to be had. Also, Gravity. Just how many stars do you see?

But it sure looks pretty now.
Whew,

Cheers,
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Originally Posted by Hagar View Post
I'd be curious if someone might explain something to this country bumkin.

In the CMS side, what does the "Pause" do.
Why is there a test button at the bottom?
and lets slap this about one more time. I'm accustomed using a Viideo EQ that goes to 100 for adjusting Grayscale . Seems the RS25 adjust 95 and thats it. Why? I know someone said because you adjust 100 when you do Contrast and brightness. But I can still adjust it under grayscale.

Just a bugging point.

And I finally just got my RS25 to calibrate after I found a cable that was bad.

And are there any test disk that show what your suppose to be seeing in the sense of gamma/grayscale? Seems all I do is wonder using a 2.3 gamma for a bat cave IF I'm missing any detail?
I normally will pull up Avatar and check out the scene of him fighting the dogs. Its dark and a lot of detail is to be had. Also, Gravity. Just how many stars do you see?

But it sure looks pretty now.
Whew,

Cheers,
Dave
Nobody replied to this but I will now in case it helps others with this projector:

1) The pause option in the CMS locks the image being displayed - it is a freeze frame option.

2) You can use calibration software with a meter to check adjustments to grey scale. Plenty of guides for that.

3) The 100% white control is in the color temp menu. Select custom, and adjust the gain controls to level out RGB at 100% IRE. Then use the gamma controls to set 5-95% luminance and RGB balance.

I use Calman's levels editor to create a custom gray scale from 0-100% for this with the corresponding grey scale points so that I can adjust them.


4) You can evaluate adjustments and issues with a test disc that has suitable patterns (check Ted's disc first as that has the most patterns and they are very helpful on these projectors). Suggest checking red ramps especially on this series of JVC projectors as that is where most of the issues lie (see number 5 below).

If you are not using a 3D LUT, then would suggest ignoring 100% saturations and focusing on getting the lower range up to 75% aligned as best as you can. The hues for all colors are pulled towards green so that needs the most work in the CMS. Saturation and color controls need to be used to keep the 20~75% points for each color linear in ramping - though this is not easy due to how the CMS adjustments scale.

Due to non-linearities these projectors benefit greatly from a massive patch 3D LUT. The more patches are run the better. Primaries and secondaries all need corrections across the scale as there are so many knock on effects in the scales and a lot of abnormalities. It's a matter of getting the base settings in the projector close and having no errors with as much room as possible for the LUT to work. I've gone up to 6500 patches and see benefits the higher I go. If I had a fast enough meter I'd run a lot more.

Ideally, JVC should have rolled out a firmware fix for these projectors (HD950/HD990) to address the CMS adjustment issues. They did not as media editors that received units did not test or did not mention these issues.

I suspect the pro calibrators know about this, as you can see clues in their posts when JVC projectors are mentioned. I am not sure if the newer models are any better in this regard as nobody has confirmed by checking the relevant patterns and posting their results (at least from what I have seen on the forums).

Other than that however, the image these projectors throw is fantastic. Once you go JVC, there is no going back to other consumer level brands - well not for me anyway.

5) Be careful with the color control and the cms saturation controls for red. If set wrongly there will be errors displayed on the ramp. Even setting color to near 0 can show errors in the red ramp on some projectors.


6) If you do take a risk on an OEM lamp, then run the fan in high altitude mode. The fan ramp is designed around the stock lamp as far as I can tell. If the OEM lamps run hotter, it can give rise to excess heat - which isn't good for internal parts. I haven't opened mine up to have a look inside, but will do soon to see what I can service. Usual suspects for degradation are any electrolytic caps in the SMPS - they lose about 10% of their rating each year if run close to their temp rating. I would not be surprised if what folks refer to as a ballast replacement (which is the SMPS) is a result of any electrolytic cap issues.

There are other components that can fail too, but it's usually the caps that go in these type of environments.

Hope this helps.

-Raja
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Quote:
Originally Posted by RajinderGill View Post
4) You can evaluate adjustments and issues with a test disc that has suitable patterns (check Ted's disc first as that has the most patterns and they are very helpful on these projectors). Suggest checking red ramps especially on this series of JVC projectors as that is where most of the issues lie (see number 5 below).

I agree this with, it's true that each model needs different handling.

Example:

Imagine a scenario that you are hiring to your living room 5 different pro calibrators to calibrate your projector, all of them will only use your meters to calibrate, not their own meters, after the end of each calibrator session, if you write down the menu settings each calibrator used, if you compare at the end these 5 menu setting lists you will see that they are not matching, each one calibrator used different method to calibrate your display.

The same time that the 5 post-calibration reports can be so similar... the image will be slight different... if you swap these 5 memories you will see differences...

This is happening because each calibrator used other method to provide you low dE numbers, If you load some Color Reproduction Patterns, probably you will notice differences in color ramps, clipping bars, color steps etc..

The best of these 5 calibrations settings is the one that the calibrator used with the best way the combination of your internal display controls.

Each available internal calibration control settings that a display has are not always working as expected...Some controls are introducing image anomalies, others have safe working range (for example they are not introducing problems if you use them only at +-2 value of adjustments only), other display controls must not using them, because they are breaking the display color management system or producing non-linearity to display performance, banding, strange artifacts etc.

That's why I added so many Color Reproduction Patterns to my calibration disk, for the users to verify their controls reactions after using some controls or to check if the combination of internal display calibration controls are not introducing problems to the display.

So I'm suggesting anyone to check also after modification some Grayscale ramp or grayscale steps of my disk (or other disk), to see if the controls have added problems to linearity of the steps, banding or other problems....with this way anyone will be able to start learning each display's contols safe working range, what to touch/not touch, because not all controls are working perfectly.... and a lot of times, specific combination of controls can be tricky and can introduce problems in picture.

These problems in image is something that the 21-Point Grayscale or 5-Point Saturation or Color Checker reports can't display to the user, that's why its important to use some Color Reproduction Patterns after the end of the Calibration or during the calibration, and try to find by viewing them with our eyes for problems: Look for smooth color graduations, distortions, discoloration, clipping, banding, posterization, crushed shadow details, raised black levels.... something that the measurements/pretty calibration dE reports can't show.

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