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raven8474
Joined: 23 Apr 2006
Posts: 53
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| Posted: Fri Feb 23, 2007 4:42 am Post subject: |
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Hi sdubreuil,
I diddn't read all of the posts here ( I'm Lazy ) But I agree that you could get a better machine for not to much. If you are to keep it... I have done all of the normal mods including the spring mod ( toe-in) and lens flapping. I would still suggest 1080i . It was the best picture I could get out of my 1252. This was on a 80" diag 1.78:1 Carada screen
Just my 2 cents,
John
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Fri Feb 23, 2007 2:36 pm Post subject: |
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| sdubreuil wrote: | Could you please tell me what you mean by ""mooneyass" mod to give you Scheimpflug correction. "
Again Thanks a lot |
No problem! You can find docs on Curt's site about Scheimpflug correction... Basically, you'll know if you need if you can get one part of the screen in focus, but not another. If you can get the top focused, but not the bottom, or vice-versa, then you need Scheimpflug correction. It's also called "lens flapping" or "goggle flapping".
As for the 127x mods, there's two you can do for better perforamance. The first is easy and should be mandatory on every 12xx install.
1) Tube toe-in "spring" mod. This mod replaces the pot-metal "tube spacers" that adjusts toe-in angle on the CRT's to allow for perfectly centered rasters on the red and blue. It's an easy mod - probably only takes 20 minutes to install and only costs a few bucks in springs and rubber grommets from the hardware store
2) "Scheimpflug" or "flapping" mod. This mod is a little more difficult to install and makes focusing much more difficult. Mor importantly, it makes focus much better over the entire screen. It takes a little more time to install.
Both mods are in the "mooneyass" guide in the 12xx download section...read this thing a couple of times - it really helps you understand what we've been talking about...
The 'Mooneyass' Sony 1270Q Setup and Operation Manual 0.9mb
Also, you still haven't mentioned which lenses are on your projector. Depnding on which lenses you have, you might be better of spending less than half the price of upgrading the convergence boards to buy better lenses.
SC
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sdubreuil
Joined: 18 Jan 2007
Posts: 43
Location: Montreal, Quebec Canada
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| Posted: Fri Feb 23, 2007 2:44 pm Post subject: |
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Thanks alot for this info SC or Ecrabb 
I will read those document and aply it. I will take before and after picture as well. Unfortunatly I can,t do it this weekned so it will take another week.
Sorry I forgot to return to you with my lens type
My lens are PT-65.
Regards
Stephane
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Fri Feb 23, 2007 3:04 pm Post subject: |
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Oh, good - PT65's are great. You're all set, then. The PT-65's are the best you can do on a 12xx without spending a LOT more money and going to a lot more hassle.
SC
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GEBrown
Joined: 08 Mar 2006
Posts: 729
Location: Denver
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| Posted: Fri Feb 23, 2007 4:27 pm Post subject: |
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| sdubreuil wrote: | Hi Ecrabb
I just read again all the info that you provide me. In particular thsi one:
"Also, to really maximize sharpness (especially with a screen that small), you'll eventually probably want to do the "mooneyass" mod to give you Scheimpflug correction.
"
Could you please tell me what you mean by ""mooneyass" mod to give you Scheimpflug correction. "
Again Thanks a lot |
If you simply Google "mooneyass" the very first hit will take you to his site.
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Member of the Marquee Maniacs Club
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Halo1963
Joined: 18 Apr 2006
Posts: 54
Location: Brisbane Australia
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| Posted: Sat Feb 24, 2007 2:22 am Post subject: |
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You will see an improvement if your original set up was not quite perfect due to the 21 point convergence
However you have not increased your bandwidth
You would have to change the CA(B)and CA(RG) boards to achieve the extra bandwidth
The Y board has the same part number however I think the EEPROM
is programed for the extra frequency block 
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Regards Halo1963
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rwijnhov
Joined: 28 Jan 2007
Posts: 32
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| Posted: Sat Feb 24, 2007 11:34 am Post subject: |
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Ok can anyone give me a res for my htpc that should work on a 1271 and not on an 1251. Then I can check this and we know.
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sdubreuil
Joined: 18 Jan 2007
Posts: 43
Location: Montreal, Quebec Canada
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| Posted: Tue Feb 27, 2007 3:08 am Post subject: |
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Thanks Halo & rwijnhov
Halo, are you sure about the CA (B) & CA(RG) cards?
How can we know if the EEPROM is programmed for the extra frequency block ?
Finally, I can't find any info about the CA(RG) but only for CA(G).
rwijnhov
A picture takes before and after the change will be the best but I do not believe that you will remove your 2 modules. Please show us how a 720p & 1080i look likes on your PJ.
Best Regards
Stephane
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Halo1963
Joined: 18 Apr 2006
Posts: 54
Location: Brisbane Australia
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| Posted: Tue Feb 27, 2007 11:01 am Post subject: |
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Yes I am sure about the CA boards
I have no idea on the EEPROM How ever as all the other boards are the same the Y board must have the block information as that is where it is stored
CA(RG) 1251 A-1335-032-A
CA(RG) 1271 A-1335-026-A
CA(B) 1251 A-1335-033-A
CA(B) 1271 A-1335-027-A
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Regards Halo1963
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rwijnhov
Joined: 28 Jan 2007
Posts: 32
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| Posted: Tue Feb 27, 2007 6:57 pm Post subject: |
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sorry but my pj is up at the ceiling now and all converged so i won't thinker anymore with it.
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Tazzy
Joined: 22 Feb 2007
Posts: 35
Location: Netherlands
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| Posted: Wed Feb 28, 2007 3:34 pm Post subject: |
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Would this work on a 1252?
Edit: How to find out if this wil work on my 1251 
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sdubreuil
Joined: 18 Jan 2007
Posts: 43
Location: Montreal, Quebec Canada
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| Posted: Tue Apr 17, 2007 1:45 am Post subject: |
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Humm
I have received my Moome HDMI card + Gamma Correction for my Sony VPH-1251Q.
I have run the Moome card with:
PJ Sony VPH-1251q
My DVD DENON 1910 (Faroudja chip upscaler).
Output DVI
Upscale at 720p and 1080I
This setup was compare to:
my old setup with the same Sony projector
Line Doubler Faroudja VP250 (480p)
Results
When I use the Denon internal upscaler with the moomes card, the artifact is present everywhere. The colors are not as good as the VP250. Even the details are not as good. Definitely, my old 480p VP250 Faroudja do a better job. I did even compare it with the 480p mode in the Denon DVD player and the difference is huge.
Before you asking me, I did already optimize my projector with the help of many of you (Thanks) J
The astigmatism correction is done.
The G2 (4V) correction is done.
The white Balance is done.
The PJ to screen distance is optimizing. 87" for a 67x50 screen.
My Lenses are clean.
New spacers for the CRT are on.
The lens angle correction (not done yet).
All the correction above did improve my image by a lot. The difference is amazing. I’m very impress with the result
My only dilemma is now to fix the artifact issue.
Question:
Is my problem is the Denon internal upscaler (which what I think)?
Or is it the Moome (I will be surprise).
Do I need a new processor for upscaling?
If yes, is it better to spend my money on HD-DVD instead?
I use my PJ for Movie only.
I will post a picture (result) as soon that I fix the Artifact issues.
Thanks everyone
Stephane
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Tazzy
Joined: 22 Feb 2007
Posts: 35
Location: Netherlands
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| Posted: Tue Dec 11, 2007 5:44 pm Post subject: |
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To bump this topic,
I upgraded my 1251 to a 1271ish beamer last night. Going to redo the setup in a few mins
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Tazzy
Joined: 22 Feb 2007
Posts: 35
Location: Netherlands
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| Posted: Tue Dec 11, 2007 7:54 pm Post subject: |
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I totally forgot how much fun it is to setup a 12xx beamer. Gave up for now restarting it tomorrow
_________________
Sony 1251+20upgrade & Barco Data 808s (still broken) in the HT
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Wed Dec 12, 2007 12:03 am Post subject: |
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Yes they are a fun beamer to set up. My first attempt took 8 hours now I can have an ok picture in about 30 minutes
_________________
Tech support for nothing
CRT.
HD done right!
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