Originally Posted by R Harkness
Since my HT room won't be complete for a month or two I'm hauling my new RS20 over to Mrlittlejean's place to check it out for any issues, before it goes back into it's box until my theater is finished.
I'd like to know what kind of issues I should check for? Some I'm aware of are: Excessive image noise (mrlittlejeans had to have his replaced for that issue), sticking automated lens cap.
Anything else? What are the important parameters to check to ensure I got a good unit?
Follow the checks kutlow suggests, but plus... much important you must check:
1) Focusing ... Try a pattern 1 pixel thin, and check the ability to focus good and at best over the screen. Check too, uniformity of the focused pattern in every zone of the screen
2) Black pattern or use the "Hide" function on remote. Check on the screen the uniformity of the black. There Must be NO shading NO "lights angles" No zones with different tone of "lighted" Black
3) Use a squares grid or the internal green squares test Pattern.
Go near the screen and check:
Usually NO perfect alligment of the 3 matrix must be contained in 1/2 - 1/4 of pixed ( vertical or horizontal ) for 1 or at last 2 of the 3 primary colors.
If you find for ex. 1/4 pixel red shifted vert. this is in the tollerance
BUT .. the most important thing is that this 1/4 pixel shifted MUST BE contant in every zone of the screen !!
The bad news is if you find 1/4 pixel shifted up on the right and 1 pixel shifted down to the left ..
There's notthing you can do to adjust in this case ... better to return the machine for a replacement !
Sorry .. JVC are wonderful machines ! But the production is as is ...
I checked with my dealer the 1st group of RS20 arrived in Italy last 19 December. We checked them accurately to classify 1-10 range them.
Well among 20 pieces only 3 units gain up from 9 to 9,50 !!
We found 7 units from 7 to 8,50 BUT 5 units to return Immediately !!
As I'm done and I pretend and feeel... I should keeped only the first group of units gained from 9 to 9,50 !!
Obviously, mine unit is the one that earned the 9,50 vote !