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Help Sony G70 on the floor!

 
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Das444



Joined: 22 Dec 2006
Posts: 145


Posted: Fri Mar 29, 2013 8:27 pm    Post subject: Help Sony G70 on the floor!

Hi,
I have been searching here and AVS archives looking for info on cross hair alignment. I went through and manually reset all centering data to 128. Now the green and blue line up horizontally and vertically. The red when set to 128 is about 4 inches higher horizontally than the green and blue but lines up vertically. Is there any way to move the red horizontal line down to meet up with the green and blue while maintaining the 128 center?
Thanks in advance.
Dan
Sony G70
floor mount
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Curt Palme
CRT Tech


Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC

TV/Projector: All of them!

Posted: Fri Mar 29, 2013 8:59 pm    Post subject:

No, that is the way of the D and G series of sets. Use the Zone 1 (centre zone) for a coarse V shift. What you're seeing is normal.
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AFryia



Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q

Posted: Fri Mar 29, 2013 9:51 pm    Post subject: Re: Help Sony G70 on the floor!

Das444 wrote:
Hi,
The red when set to 128 is about 4 inches higher horizontally than the green and blue but lines up vertically. Is there any way to move the red horizontal line down to meet up with the green and blue while maintaining the 128 center?

Did you rest all geometry controls to 128 or just R/G/B Center when in service menu?

Are you starting from scratch or touching up a memory block? If from scratch I would first reset all Zones to 128 and work all the other geometry controls first. Leave zone for the last tweaks and only if necessary (I always find it necessary).
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Das444



Joined: 22 Dec 2006
Posts: 145


Posted: Sat Mar 30, 2013 12:00 am    Post subject:

AFryia,

It's from scratch. Using the Sony wireless remote under the flip up door, I used adjust R/G/B Cent,Size,Lin,Skew,Bow,Key,Pin. All zones 1-25 have been set to 128. Not the RGB Size, Shift and Center Red/Blue controls.
Dan
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AFryia



Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q

Posted: Sat Mar 30, 2013 4:55 pm    Post subject:

Das444 wrote:

It's from scratch.

like Curt said that is normal for the cross hairs to be off vertically (up/down).

I would not use any Zone adjustment till the very end.

IMO you 1st should CENT the grid pattern not the cross hair on the tube face using the edge of the grid as the reference not the center. Then adjust mechanical TOE in/out. You need to then adjust optical focus, shemflung, and Toe iteratively a couple times before making any other electronic adjustment.
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ecrabb
Forum Moderator


Joined: 13 Mar 2006
Posts: 15909
Location: Utah

TV/Projector: JVC RS40, Epson 5010

Posted: Sat Mar 30, 2013 5:48 pm    Post subject:

I made a couple of posts over the years with a good guideline of the order of iterative setup and convergence. Ill find them and post this afternoon.

Search the g70 owners thread - lots of info there.

There's also Brian's setup guide, too.

SC
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Das444



Joined: 22 Dec 2006
Posts: 145


Posted: Sat Mar 30, 2013 6:29 pm    Post subject:

AFryia, Curt

I wanted to make sure I didn't have a problem. I did use the grid pattern to center the raster’s. I’m at 116” from the screen wall to the front of the projector shooting for 52x92 screen size. Sorry I had my up/down=vertical and left/right=horizontal ass backwards. Shocked I'm just getting mesurements to ceiling mount it.

Thanks
Dan
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Das444



Joined: 22 Dec 2006
Posts: 145


Posted: Sat Mar 30, 2013 7:46 pm    Post subject:

ecrabb,

I did find the g70 owners thread while searching. I'm sure I will be referencing the thread often. Thanks to you and the others who have contributed to this vital information.

Dan
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Das444



Joined: 22 Dec 2006
Posts: 145


Posted: Tue Apr 02, 2013 1:47 pm    Post subject:

ecrabb,AFryia

Would there be any benefit to using a lumagen HDP/DVI with the G70?

Dan
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AFryia



Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q

Posted: Thu Apr 04, 2013 11:59 pm    Post subject:

Can't say for sure.

I've run a HTPC for many years and now an up-scaling Blu-ray player, both direct to the PJ. The HTPC measured better grey scale and color (special sauce software).

I'm less critical now so I see very little difference between the two.

That being said, I would think, yes, there would be a benefit. But at what price?

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