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Lamp assembly (bottom view)

Screw B

Screw A

Screw C

D

This adjustment is needed when any of the optical parts of the optical mechanism has been replaced.
1. Disconnect the flat cables from all the LCD panels.
2. Light up the lamp.
3. Project a white-light image and check to see if there is any color tint in any direction. If any, loosen the incident-light

fly-eye adjusting plate lock screws and readjust the fly-eye to get the image uniformly whitish. Tighten up the lock
screws.

4. If by any chance the above step 3 fails, use the M1, M4 and M5 adjusting levers.
5. Before moving the M5 adjusting lever, shield the G and B color beams. (For shielding them, use reflective sheets

that reflect the incident lights.)

6. Loosen the adjusting lever lock screws, make adjustments, and tighten up the lock screws.
7.  Before moving the M4 adjusting lever, shield the R and G color beams.

Front

M4 Adjusting lever

Lock screws
(yellow)

Shielding plate for B

Shielding plate for R

Shielding plate for G

M1 Adjusting lever

M5 Adjusting lever

Lock screws
(yellow)

Lock screws
(yellow)

Lock screws
(yellow)

incident-light fly-eye 
adjusting plate

If color irregularities are found at the right and left on a white-only screen after replacing the lamp, it is necessary to
readjust the optical axis of the new lamp. Take the following steps.
1. Open the lamp cover and loosen the screws A, B and C at the bottom of the lamp.
2. Using a screwdriver or the like, move the U-shaped groove at the window D in the arrow direction.
3. Temporarily fix the screws A, B and C, close the lamp cover, and check the white-only screen again for color

irregularities.

4. Repeat the above steps 1, 2 and 3 until there will be no color irregularities. Now tighten up the screws A, B and C.
5. Finally secure the lamp cover back in position.

1. Remove the three lock screws, and take the prism holder unit and the projection lens assembly out of the optical

unit.

2. Remove the four lock screws, separate the prism holder unit and the projection lens assembly from each other.
3. Replace the prism holder unit with new one. Take the above steps 1 and 2 in reverse order.

Note: Even if just one of the LCD panels is defective, it is necessary to replace the entire prism holder unit. Do not

replace just the defective LCD panel only.

Projection lens assembly

Prism holder unit

2

Projection lens lock screws (yellow)

B-LCD panel

G-LCD panel

1

Prism holder unit lock screws 

     (yellow)

Optical unit

R-LCD panel

1. Turn on the power (with the

lamp on) and warm up the
set for 15 minutes.

2. Select the following group,

sub-group and subject.
Group : Option
Sub-group:

EEPROM Initialize

Subject : Initialize Start

»

Make the following settings.
Press SW1601 to call the process mode. Initialize
the EEPROM by execution of Initialize Start. (After
the execution of Initialize Start, the EEPROM will not
be initialized unless the power is once turned off.)

1. Feed the XGA 10-step sig-

nal.

2. Select the following group,

sub-group and subjects.
Group : Adjust PC Image
Sub-group: AD
Subject :

R-Bright (In R adjustment)
G-Bright (In G adjustment)
B-Bright (In B adjustment)

3. Connect the synchroscope

(0.2V/div.) to the following
TPs.
 In R adjustment  TP1403
 In G adjustment  TP1402
 In B adjustment  TP1401

»

Adjust the setting just until the color tone level 0 starts
moving.

0-gradation

10-gradation

0.8Vp-p

1

Precautions for initializing
It takes 5 seconds to get the memory initialized and the initial settings rewritten. To go through the initialization, the
onscreen display background on the process menu screen turns red and the message "INITIALIZE" appears
onscreen for 5 seconds after pressing the specified key. Finally turn off the AC power (unplug the power cord).

2

Initial factory settings (S4, S5)
It takes 5 seconds to get the initial factory settings written. Do not turn off the main power during this procedure. To
ensure this waiting time, "S4" or "S5" appears on the onscreen display for 5 seconds. When this sign disappears,
you can keep on the power or turn it off.

3

Video adjustment
Be careful not to cut off the signals during the video adjustment.

»

Feed the G (30%) signal to see if there is no vertical
stripe visible on the screen. If it is visible, adjust the
setting to somewhere between 160 and 200.

Make also sure that the R and B settings are as fol-
lows.
R_CLDLY

171

R_REVCLDLY 175
B_CLDLY

175

B_REVCLDLY 178

1. Feed the XGA mode mono-

chrome signal.

2. Select the following group,

sub-group and subjects.
Group : LCD2(6050)
Sub-group: CLDLY
Subject : R_CLDLY

G_CLDLY
B_CLDLY
R_REVCLDLY
G_REVCLDLY
B_REVCLDLY

2.1Vp-p

3.8Vp-p

1. Select the following group,

sub-group and subjects.
Group : Adjust PC image
Sub-group: CXA2111R
Subject :

AMP-R-GAIN (In R adjustment)
AMP-R-BLK (In R adjustment)
AMP-G-GAIN (In G adjustment)
AMP-G-BLK (In G adjustment)
AMP-B-GAIN (IN B adjustment)
AMP-B-BLK (IN B adjustment)

2. Connect the synchroscope

to the following TPs.
 In R adjustment  TP1101
 In G adjustment  TP1201
 In B adjustment  TP1301

3. Feed the XGA 10-step sig-

nal.

1.Select AMP-R-GAIN and adjust the signal amplitude

to 3.8 

±

 0.1. Select 0.1Vp-p.

2.Select AMP-R-BLK and adjust the white-white sig-

nal amplitude to 2.1 

±

 0.1Vp-p.

Note: Make sure that the black side does not interfere

in GAIN adjustment.
Adjust the amplitude as for G and B in the same
procedure.

1. Feed the XGA 10-step sig-

nal.

2. Select the following group,

sub-group and subjects.
Group : Adjust PC Image
Sub-group: AD
Subject :

R-Contrast (In R adjustment)
G-Contrast (In G adjustment)
B-Contrast (In B adjustment)

3. Connect the synchroscope

(0.2V/div.) to the following
TPs.
 In R adjustment  TP1403
 In G adjustment  TP1402
 In B adjustment  TP1401

»

First reach a setting where the color tone level 10
gets saturated. Then decrease the setting by one
point.

0-gradation

10-gradation

0.8Vp-p