XG-NV51XE (serv.man8). Convergance and focus adjustment - Sharp Projector Service Manual (repair manual). Page 2

4. With the G-LCD panel's screen center as refernce, adjust the R-LCD and B-LCD panels.
5. Finally tighten up the convergence lock screw "d".

1

The eccentric cam is used for convergence adjustment.
This means that the cam's turning and the linear movement are not always uniform.

2

This model is not equipped with the LCD image adjustment mechanism. This is because the cross-dichroic
prism is used for image formation. When the LCD panels all get into best focus, the images are almost
completely converged.

R-LCD

B-LCD

Lock screw "a"

Lock screw "c"

Notch and 

hole "c"

Notch and 

hole "b"

Lock screw "c"

G-LCD

G-LCD

Lock screw "b"

Notch and hole "c"

Notch and hole "a"

Lock screw "d"

Lock screw "d"

R·B·LCD panel 

mounting screws

R·B-LCD

G-LCD panel 

mounting screws

Eccentric cam

(Y direction adjustment)

Eccentric cam

(X direction adjustment)

Eccentric cam

(

θ

Z direction adjustment)