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Question about Geometry Calibration (1 Viewer)

Johnny_M

Second Unit
Joined
Apr 6, 2004
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281
I've spent the last couple hours adjusting the geometry on my RPTV thru the service menu. I've really got it just about the way I want it, but one thing: The top and bottom seem to bow inward slightly toward the middle, I dont see any adjustment to address this. What would that ajustment be called? Is it a combination of multiple adjustments?

Johnny
 

Michael TLV

THX Video Instructor/Calibrator
Senior HTF Member
Joined
Mar 16, 2000
Messages
2,909
Location
Calgary, Alberta
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Michael Chen
GReetings

Depends on the TV ... which one are you using? Are you doing corrections via SM parameters or with the grid itself through convergence.

regards
 

Johnny_M

Second Unit
Joined
Apr 6, 2004
Messages
281
I have a 43" widescreen samsung, 4215 or 4w15 is the model (i think).

im doing the adjustments by having Digital Video Essentials in the dvd player, ive tried using different grids on that. im basically doing this by trial and error. maybe if you could explain exactly what each setting changes that would be helpful, or is there a web site somewhere? most of them i understand like vertical shift, etc, but some of the others i dont fully understand what they are moving when i adjust them.

anyway, what i ended up with is a perfectly square image, but the top and bottom bow outwards slightly, in other words, the top middle goes higher than the top left and right, and the bottom middle goes lower than the bottom left and right.

does that make sence?

Johnny
 

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