[XCSSA] Purchasing used 1080i TV advice

[X-otic Computer Systems of San Antonio]

There's also DLP and HD-ILA. One uses a single light chip and a color- 
wheel and the other is a three chip variant (Sony had something  
similar but they called it something else). Older DLP models had  
slower speed color-wheels which caused flicker so be sure to look at  
the screen carefully (particularly white text on black) to see if it  
is DLP or if it flickers.


On Jan 28, 2009, at 4:52 PM, X-otic Computer Systems of San Antonio  
wrote:

> How easy is it to move?
>
> Could be any number of "internal projection" technologies:
>
> CRT
> LCD
> Light Pipe
>
> CRT projection has good qualities, but often looks dim unless you
> have darkened room (as you should have anyway for watching tv, not
> totally dark, but 10% of maximum screen brightness).  Also they are
> HEAVY!  For this, check if brightness level and color are
> satisfactory to you, and can handle the weight. Also check geometry,
> focus, convergence of colors, background uniformity, etc.
>
> LCD projection (and non-projection) have somewhat inferior black
> level, but appear very crisp and bright otherwise.  Every year the
> LCD black level gets better, still no where near CRT or Plasma.  They
> are pretty much all direct-view now since LCD panels have gotten so
> cheap, no point in bothering with projection anymore.
>
> Light Pipe similar to LCD projection
>
> For LCD and Light Pipe, stuck pixels can be a problem (though there
> are pixel-unsticking DVD's that exercise the display)
>
> How big is it?  Nowadays LCD displays 52 inches and under are
> reasonable, and 32 inches are cheap.
>
> Charles Peterson
>
>
>
> On Jan 28, 2009, at 4:36 PM, X-otic Computer Systems of San Antonio
> wrote:
>
>> Guys, I came across a deal I can not afford to pass up on a used  
>> 1080i
>> TV. Guy says its an "internal projection" (don't know what that  
>> is), 4
>> years old and the screen is in excellent shape. What other things
>> should I look for when I go and look at it?
>>
>> -- 
>> Jeremy Mann
>> jeremy at biochem.uthscsa.edu
>>
>> University of Texas Health Science Center
>> Bioinformatics Core Facility
>> http://www.bioinformatics.uthscsa.edu
>> Phone: (210) 567-2672
>> _______________________________________________
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>
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