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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 (three 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.

1

G-LCD

G-LCD panel 

mounting screws

Lock screw "d"

Lock screw "d"

R·B·LCD panel 

mounting screws

R·B-LCD

Prism holder

Optical Mechanism Unit

2

2

Adjustment procedure required when any of the panels has been replaced or the convergence has been
adjusted
(1) Disconnect the flat cables of all the LCD panels.
(2) Let the lamp light up.
(3) To adjust the G mirror, shield the R and B mirrors with shielding plates (You can use a business card or the like to

block the light).

(4) Loosen the lock screw of the M1 adjust lever.
(5) Looking at the G image on the screen, turn or slide the M1 adjust lever until the eclipse on the screen disappears.

Tighten up the screw.

(6) To adjust the R mirror, shield the G and B mirrors and adjust the M5 adjust lever. For the B mirror, shield the R and

G mirrors and adjust the M6 adjust lever.
(Take the same steps 4 and 5 above.)

(7) Remove all the shielding plates to have a white image.

Make sure there is no eclipse.

FRONT

 adjust lever

Lock screws

Lock screws

 adjust lever

Lock screws

 adjust lever

Shielding plate G

slide

turn

turn

slide

turn

slide

Shielding plate R

Shielding plate B

1. Turn on the power (make

sure the lamp lights up) and
warm up the unit for 15 min-
utes.

»

Make the following settings:
Press S5001 to call up the process mode and
execute S2 in the SSS menu. Now the system, with
the PC board not included, is initialized. Do not
execute S1 because otherwise the PC board will be
initialized.
To adjust the PC board, follow the instruction in
"Adjusting the PC board". (See page 28)

1. Make the following choice.

Group : A/D
Subject : GAIN
Make sure the GAIN value
is 163.

2. Make the following choice:

Group : OUTPUT 2
Subject : BRIGHT
Reduce the brightness level
by 4 points.

3. Feed the 100% red-only sig-

nal. Make the following
choice.
Group : A/D
Subject : R-D

»

Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).

1. Feed the 100% blue-only

signal. Make the following
choice.
Group : A/D
Subject : B-D

»

Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).

1. Feed the 100% green-only

signal. Make the following
choice.
Group : A/D
Subject : G-D

»

Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).

»

 Choose the subject R1-GAIN and adjust the signal
amplitude to 3.6 ±0.1 Vp-p using the control switches
or the remote controller buttons.

»

Next,choose the subject R1-BLK and adjust the black
peak level to 2.4 ±0.1V DC.

1. Make the following choice:

Group : OUTPUT 1
Subject : R1-BLK

R1-GAIN

For green, choose the sub-

    jects G1-BLK and G1-

GAIN.
For blue, choose the sub-
jects B1-BLK and B1-GAIN.

2. Connect the oscilloscope to

TP1101  for red.

    TP1201  for green
    TP1301  for blue

1. Connect the oscilloscope to

TP1102 for red.

    TP1202 for green
    TP1302 for blue.

2. Make the following choice:

Group : OUTPUT 2
Subject : R2-GAIN

 

»

Using the control switches or the remote controller
buttons, adjust the waveform become as follows.

 

»

 Make sure the waveform of the green and blue are

same as red.

1. Feed the XGA mode 75-Hz

black signal.

2. Make the following choice:

Group : OUTPUT 3
Subject : SH-PHASE
(Have the standard level at
8.)
Fix the R-, G- and B-
PHASE settings all to 8.

»

Using the control switches or the remote controller
buttons, make sure that the “OUTPUT 3” characters
are not blurry and there is no ghost image. If such
blur or ghost occurs, finely adjust the setting in the
range of 7~9.

7V DC

2.5V DC

GND

»

Adjust the signal's amplitude and maximum black
level to 3.3 ± 0.1Vp-p and 2.6 ± 0.1V DC, respec-
tively, for green and blue.

»

Make sure the BLK DATA is more than 100.

3.6Vp-p

2.4V DC 
  (Adjust to 2.6V DC for green and blue.)

(Adjust to 3.3Vp-p
 for green and blue.)