[erick granato]

there is a lot of talk on this forum and other places about the benefits to picture quality by removing the anti-glare screen from the rptv. can anybody give me detailed instructions on how to do this without wrecking or scraching the screen or the tv. i have a 51swx20b hitachi. does it just pop off or do you need tools? my old hitachi you had to undo some screws at the bottom under some trim and then pry the screen off at the top and sides. is this the same proceedure?

thanks

 

[Marc Alexander]

The procedure should be about the same.

 

[Marc Alexander]

Undo the screws behind the speaker panel. Then lift up the screen assembly a few inches. This will expose some screws on the top of the assembly. Remove these and you can remove the top of the screen assembly. You can then lift out the screen. The glare screen will attached with tape, be careful seperating. You will need some type of spacer (I use screen spline...cardboard strips should work too) to make up the space that the glare screen took up (I don't recommend restacking).

 

[Michael TLV]

Greetings


Beware of bowing in the screen if you shim the edges. Without the plexiglass in the back, the solidity of the screen assembly might be compromised. (A benefit of restacking ... structural integrity is not impacted as much)


Regards

 

[hawaiian2002]

What is wrong with restacking? Seems that if you don't restack you may get bowing of the remaining screens.

 

[Michael TLV]

Greetings


Some feel that restacking increases internal reflections. Others don't see any difference. The benefits of restacking far outweigh just leaving the screen in the front.


You pick your poison when it comes to how to deal with it. Removal or restack ... each has potential issues.


Regards

 

[Marc Alexander]

I've never seen any bowing problems (nor do I see how one can develop if spacer is snugly installed).


If you restack...be sure to redo focus.

 

[hawaiian2002]

Hey guys,


Just restacked my kp57ws510. I cannot believe how much better the screen is. There is no glare....period. I have explosed the lenticular lens and there is just no glare at all. No need to worry about lights, windows, shades, etc. Only thing to worry about now is the lens itself. You know I've looked at the lens and I do not believe it would cost that much to replace anyway. I read a post that said it would cost between $150 and $200. That is a bargain price for the nonglare screen I have now. And that is only if something were to happen to the screen.

 

[erick granato]

what is re-stacking?

 

[Michael TLV]

Greetings


The order of the three screens ...


outside ... plexiglass / lenticular / fresnel ... inside


restacked


Outside ... lenticular / Fresnel / Plexiglass ... inside


Regards

 

[Marc Alexander]

Quote:

Originally posted by Michael TLV Greetings The order of the three screens ... outside ... plexiglass / lenticular / fresnel ... inside restacked Outside ... lenticular / Fresnel / Plexiglass ... inside Regards

Michael, please explain the benefits of your restacking method. It appears that hawaiian2002 has restacked


Outside ... Fresnel / lenticular / Plexiglass ... inside


(I always get confused lenticular vs. Fresnal...maybe he did too).

 

[Michael TLV]

Greetings


The restack has the benefit of having a place to store the plexiglass rather than in a closet or under a bed.


It helps retain the rigidity of the stack and since it adds little to no additional internal reflection ... based on my extended observations and those of others in the industry ... it is done to save time.


If weather stripping works for you or any other ... in terms of shimming ... then more power to you. I've seen enough bowing in the screens without to know I'd rather not do the shim.


Bowing is funny since you can adjust for it via convergence ... but if the room temp changes or the humidity changes ... the bow can go from convex to concave ... forcing you to redo convergence.


Lenticular screen is the one with the ridge system running top/bottom. It controls ambient room lighting.


Fresnel lens is almost like a glass with huge finger print marks. It takes the light from the crt and spreads it out evenly over the surface of the screen.


Regards

 

[hawaiian2002]

This is the procedure I used to restack. Hopefully this can help anyone with a Sony KPxxWS510 or KPxxWS500 or KPxxWV500 (I am not sure which ones apply).


You have to remove the bottom panel first. There are 3 screws on each side located behind the panel. Remove bottom panel and place in front of tv. There are wires connecting the front panel controls and a/v connectors. I had about a foot of slack so it was no problem. This exposes 4 screws for the top panel. Now remove top panel. There are screws on top and on the sides and also the ones you just exposed below. You may need 2 people for the next procedure. You need two people for the next procedure. Remove the front panel and hold in place in front of the tv. The person on the left must reach in and untie the wires connecting the autofocus sensors connected to the top inside panel. This will give you maybe 2 feet of slack. I had just enough slack so that I could lay the panel face down (I place a bedsheet on the floor below). Unscrew the rails holding the panels down. The rails are wired together for the autofocus so just place them on the side. Take out panel and place on another bedsheet. Remove black tape on 4 sides of panels and save. "Restack" front panel (I call it the "mirror") to the back. Retape. Reverse above procedure.


Refocus and do convergence again.


This is just my advise on doing this procedure. I am not an expert but this above procedure worked for me. It took me less than 2 hours to complete the procedure above. If you have been suffering with glare from these Sony's this seems to be the most cost effective and effective way to deal with the glare issue.


Also, I believe that if you want to just remove he protective screen you do not need a spacer. The rail that holds the 3 screens can be screwed down further to hold 2 screen instead of 3.

 

[Marc Alexander]

Quote:

Originally posted by hawaiian2002 Also, I believe that if you want to just remove he protective screen you do not need a spacer. The rail that holds the 3 screens can be screwed down further to hold 2 screen instead of 3.

That is nice and a good design. I wish more manufacturers would take an approach to support setups with or without the glare screen.