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1. Before replacing all the 3 LCD panels, project an image on the screen and bring it into focus.
2. Replace the LCD panels with new ones. But until the focus has been completely readjusted, be careful not

to change the projection distance between the set and the screen, nor to move the projection lens focus
and zoom rings.

Note:

If the focus is readjusted with a different positional relation, the relation between the projection distance
and the screen size is affected. In other words, a short-distance image (40 WIDE for example) may get out
of the focus range, or a long-distance image (300 WIDE for example) may come out of the focus.

1. In adjusting the focus after replacement of one or two LCD panels, project an image on the screen and turn

the projection lens focus ring to get the non-replaced LCD panel into focus.

2. But until the focus has been completely adjusted for the new LCD panels, be careful not to change the

projection distance between the set and the screen, nor to move the projection lens focus and zoom rings.

3. If the projection distance has been changed or the projection lens readjusted, repeat the above steps 1 and

2.

1. Adjustment in  

θ

X and Z directions .

Loosen the lock screw "a" and insert an eccentric screwdriver into the notch and hole "a".  Turn the screwdriver
until the top, center and bottom on the screen get into focus. In adjusting this top-to-bottom focus, tighten
the lock screws "b" and "c" to fix the 

θ

Y direction adjustment.

First get the right and left halves in balance.  Then improve the accuracy while making the adjustment 2
below.

2. Adjustment in 

θ

Y direction

Temporarily tighten the lock screw "a" and loosen the lock screws "b" and "c". Insert the eccentric screwdriver
into the notch and hole "c" for adjusting in the 

θ

Y direction on the top of the screen. Insert the eccentric

screwdriver into the notch and hole "b" for adjusting in the 

θ

Y direction on the bottom of the screen.

3. Repeat the above steps 1 and 2 to finely adjust the focus.  Finally tighten up all the lock screws.

Notes :

1

Carefully proceed with the focus adjustment because the adjusting directions are correlated.

2

In adjusting the convergence and focus, do not move the projection lens zoom and focus rings until the end
of all the adjustments.

1. Take the same procedure as for the G-LCD panel focus adjustment. Note that the adjustment range is

wider in the Z direction. If the convergence is quite different between the B-LCD and G-LCD panels,
roughly adjust the convergence first and then the focus.

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Use a crosshatch pattern signal for this adjustment.
Make the adjustment just for the G-LCD and the relevant colour.

1. Loosen the convergence lock screw "d".
2. Adjustment in Y and 

θ

Z directions

Put a hex wrench in the Y and 

θ

Z direction adjustment zone.

3. Adjustment in X direction

Put an eccentric cam adjusting wrench in the X direction adjustment zone.

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
(four 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)

(four screws)

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".

Notes :

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.

80

100

2

5

16

R2

50

CUT

2

2

92

5

7.5

0.5

min85

ø

5

ø

3.5

3.5

X direction

LCD right and left

Convergence Y direction

LCD top and bottom

θ

Z direction

Rotation around Z axis

LCD turning axis

Z direction

LCD optical axis

θ

X direction

Rotation around X axis

LCD top-to-bottom flapping

θ

Y direction

Rotation around Y axis

LCD right-to-left flapping

X direction

±0.8mm Eccentric cam

Eccentric cam adjusting wrench

d

Hex wrench

Convergence

Y direction

±0.8mm Eccentric cam

Eccentric cam adjusting wrench

d

Hex wrench

θ

Z direction

±1°

Eccentric cam

Eccentric cam adjusting wrench

d

Hex wrench

Z direction

±0.8mm Notch and hole "a" & "c"

Eccentric screwdriver,

a, c

Focus

θ

X direction

±1°

Notch and hole "a" & "c"

 Bladed screwdriver

a, c

θ

Y direction

±1°

Notch and hole "b" & "c"

b, c

Z direction

±0.2mm

Focus

θ

X direction

±1°

Same as for R and B colours

θ

Y direction

±1°

Phillips
screwdriver,
*Hex wrench

Notch and hole "a"

Z and 

θ

X directions

Notch and hole "b"

θ

Y direction

Notch and hole "c"

Z, 

θ

X and 

θ

Y directions

Specific

9DASPN-XGNV1U

Eccentric screwdriver Specific

9DADRiVER-NV4U

General (redesigned)

9EQLNC-XGNV1U

 

        9EQLNC-XGNV4U

General

9EQDRiVER-NV1B

General

           —

For M2.6 pan-head machine screw

General

           —

1.27mm, preferably use a 70 mm or
longer screwdriver (with a handle).

G-LCD

G-LCD panel 

mounting screws

Lock screw "d"

Lock screw "d"

R·B-LCD panel 

mounting screws

R·B-LCD

2

2

1

Prism holder

Optical Mechanism Unit

Detach the top panel and the optical mechanism unit in advance.
(1) Remove the four prism holder lock screws. Detach the prism holder from the optical mechanism unit.
(2) Remove the LCD panel lock screws (four each for the R-, G- and B-LCD panels). Detach the LCD panels from the

prism holder.

(3) Mount a new LCD panel in the reverse order of the above steps (1) and (2).

~

Readjust the convergence and focus. Note that the G-LCD panel needs no convergence adjustment and has
a small adjustment range in the Z direction.