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In Reply to: CALIBRATION: is it worth it? posted by warrenh@optonline.net on January 17, 2005 at 03:44:04:
What do you ask for when having this done? I have a Gateway plasma with little white lines at the top of the screen when viewing off air 4:3. Is this as simple as calling any TV repair shop and requesting a home visit to tweak the set into proper calibration, or is it something more specialized?Thanks
Follow Ups:
Check your manual, remote or (user) menu to see if there is something similar to a "Picture: position/size" control. It sounds like the picture information that you're NOT supposed to see (there's more to a broadcast signal than you actually see) is "leaking" into the intended viewing area.Now, in your case, the picture's position may be shifted down (and needs to come up), the size of the picture may need to be increased vertically (it's been compressed vertically) or both. Try reading the manual and see if you come across a function or functions that will allow you to adjust the picture's position (moving the image's horizontal and vertical location on the screen) and/or size (increasing/decreasing the horizontal/vertical height/width on the screen). This should fix the problem -- for free. Or, call Gateway and see if they can give you the information. If they can't, maybe they can tell you who makes that display for them (as their name is only on the outside, they don't really make it) and maybe a call to the real manufacturer will get you the correct information.
Exactly what make/model do you have?
> Check your manual, remote or (user) menu
I did without any luck.> Now, in your case, the picture's position may be shifted down (and needs to come up),
I think you are correct. The issue I have is it is not on all channels so Gateway support pointed their finger at the my local cable company and told me "sorry can't help".> maybe a call to the real manufacturer
I read an article that said it is an OEM Sampo...I beleive the set is actually an EDTV, not 100% HDTV, (at least I know the built-in tuner is not HD), however, we feed it via the RGB output of a HDTV receiver from Cox cable and the HDTV feeds look fantastic. It's only standard 4:3 broadcasts where the lines show up on top.
Based on Gateway's support I would not buy another from them, but overall the TV is very enjoyable.
Thanks
The Imaging Science Fouudation has trained specialists all over the country who by appointment will visit you and calibrate your det to the correct gray scale and optimum contrast, brightness, color, tint, sharpness, and convergence using various test patterns and equipment.
If properly done this will give your display the best picture it can achieve and also assure longest set life. The charge is not cheap ($3-400) but worth it when you consider what the set cost and how enjoyable and long it will last. The problem you cite should be cleared up during this calibration.
BTW, if you have more than one color setting (typically nuetral, warm, and cool) ask the ISF person to set one for 6500K for color and another for 5400K for black and white.
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