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    Moderated By: claudio
    Agoraquest Forum Index Television Configuration
      
    34hs420 picture geometry problems Dashboard
    Replies: 5 | Views: 1,399
    Last Reply: April 13, 2005, 5:31 pm

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    jehill | andyross | chobany |
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    Author 34hs420 picture geometry problems
    chobany

    Rank: Sony Fan


    Joined: Apr 12, 2005
    Posts: 4
    From:

      Posted: 2005-04-12 12:21

    So I've run though the basic calibration with Avia and I was really impressed with the picture when i switched to the WhiteSox game in HD. I watched a 2hr show about beavers on INHD because the picture was so much sharper and more defined. So, through the calibration process, Ive noticed a few things i need to change and i was wondering if someone can help.
    1) On the left side of the monitor, The picture sags down about 1.5" If i run a geometry test, the horizontal lines are perfectly straight starting on the right side, but as the approach the left start to bend down. HBOW ??
    2) I am about 15-20% high on red color and 5% high on blue.
    3) My blacks are just a little too black and i feel there is a slight loss of detail on very dark scenes. SBRT? GAMM?

    I hope you can help me fix these problems. Thanks in advance.


       


    chobany

    Rank: Sony Fan


    Joined: Apr 12, 2005
    Posts: 4
    From:

      Posted: 2005-04-12 17:07

    I can probably figure out the rest of the color issues im having , but i really need help on the geometry. I will try to upload a picture of the problem later on today. I have no idea what SM setting will help this.


       
    andyross

    Rank: Sony Legend


    Joined: Mar 09, 2004
    Posts: 1093
    From: Schaumburg, IL

      Posted: 2005-04-12 17:48

    To correct the color problem (red push), try making these adjustments in 2170P-4:
    RYR from 8 to 13
    RYB from 9 to 15
    GYR from 9 to 5
    GYB from 6 to 4

    The above will get you very close. You can try fine-tuning them using the green and red color-bar patterns in Advanced Avia.

    For the drooping lines on the left, you may need to use a mixture of (all in 2170D-1) NSCO (rotation/tilt), HTPZ (horizontal trapezoid), VPIN (pincushion) and VCEN (bowing).

    I think the general idea would be to use NSCO to get your center line horizontal (don't forget to set your user menu rotation/sizes to 0 first!). Then VCEN to help eliminate any bowing. Then HTPZ to get the top and bottom level. The maybe VPIN and VCEN to flatten the top and bottom lines. It may take a few passes and tweaks to get it completely right.

    As always, right down the original settings first! Of the ones I listed, only VPIN has a separate setting for 480/1080 compressed modes vs others, and I don't know if that applies to widescreen models.

    You then need to check the grid spacing and maybe adjust VLIN (overall linearity), UVLN (Upper Linearity), and LVLN (Lower Linearity). You may also need to adjust ASPT (Aspect ratio) if you also adjust veritical and/or horizontal sizes. ASPT is separate for many different modes.

    -----------------
    Sony KDL-46EX700, Onkyo TX-NR609, Sony BDP-S370, WDTV Live Streaming, Motorola DCT-6412, RCA RCRP05B.


         
    chobany

    Rank: Sony Fan


    Joined: Apr 12, 2005
    Posts: 4
    From:

      Posted: 2005-04-12 23:50

    I'll try that stuff soon, thanks for the help. Here is an image to better show my problem, I dont think its purely tilt because from right to left it goes straight for a while, then starts to bend down.

    One thing to note.. I live in chicago and the L is behind my house and sometimes when it goes by my computer monitor and TV get some magnetic distorion in the left side. i am moving in 1 month. Should I wait to see if the problem fixes itself once ive moved away from the stupid L?



    [ This message was edited by: chobany on 2005-04-12 23:53 ]


       
    jehill
    Premium Member

    Rank: Sony Senior Advisor


    Joined: Mar 13, 2003
    Posts: 14278
    From: Sewell, NJ

      Posted: 2005-04-13 17:02

    Have you tried the "Tilt Correction" adjustment in the Setup Menu?

    -----------------
    -John

    Sony A/V System: KDL-55XBR8, BDP-S550 and AVD-LA2500PKG, consisting of AVD-C70ES Super Audio CD/DVD Receiver, 4 SS-LA500ED surround speakers, 1 SS-LAC505ED center channel speaker and 1 SA-WD200 Active Subwoofer


       
    chobany

    Rank: Sony Fan


    Joined: Apr 12, 2005
    Posts: 4
    From:

      Posted: 2005-04-13 17:31

    Yea, ive messed with tilt, but its not really a tilt issue. If you could see it up close on the crosshatch pattern, the top and bottom right right angles match up perfectly with the screen. (slightly overscanned, but thats an easy fix). The horrizontal lines starting from the right side are straight and start to droop after they hit the middle of the screen. I think the left side needs a face lift. But like i said, it could be due to the magnetic interference due to the L train in my backyard. I wont be able to tell untill i move in 1 month. I would like to know what settings would affect it. something like, left horrizontal bow?


       
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