Hitachi PJ1065 User manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
April 2001 Digital Media Group
Besuretoreadthismanualbeforeservicing.Toassuresafetyfromfire,electricshock,injury,harmful
radiation and materials,various measures are provided in this Multimedia LCD Projector.Be sure to read
cautionary items described in the manual to maintain safety before servicing.
Caution
1.When replacing the lamp, avoid burns to your fingers, the lamp becomes very hot.
2.Never touch the lamp bulb with afinger or anything else.Never drop it or giveit ashock. Theymaycause
bursting of the bulb.
3.This projector is provided with ahigh voltage circuit for the lamp.Do not touch the electric parts of power
unit (main), when turning on the projector.
4.Do not touch the exhaust fan, during operation.
5.The LCD module assembly is likely to be damaged. If replacing the LCD module assembly,do not hold
the FPC of the LCD module assembly.
Service Warning
1. Features---------------------------------------------------2
2. Specifications---------------------------------------------2
3. Names of each part-------------------------------------3
4. Adjustment------------------------------------------------7
5. Troubleshooting----------------------------------------13
6. Service points------------------------------------------19
7. Block diagram------------------------------------------22
8. Wiring diagram-----------------------------------------23
9. Basic circuit diagram----------------------------------27
10.Connector connection diagram --------------------75
11.Disassembly diagram---------------------------------77
12.Replacement parts list -------------------------------79
13.RS-232C communication ----------------------------80
Contents
SM0509
CPX980W
PJ1065
SERVICE MANUAL
CPX985W

2
1. Features
High brightness, High resolution
Compact size, light weight for portability
RGB output terminal
RS-232C Communication
Mouse emulation
Power zoom and power focus functions
Complies with VESA DDC1/2B specifications
Auto-adjustment function
2. Specifications
Liquid crystal
panel
Lamp
Video input
Drive system
Panel size
Number of pixels
System
Level
System
Level
RGB
Audio
Speaker output
Power supply
Power consumption
Dimensions
Weight
Temperature range
Accessories
Digital input
Input
Output
Analog
input/output
TFT active matrix
1.3 inches
1024 (H) × 768 (V)
250W UHB
Composite
Component
Y/C
NTSC, 4.43NTSC, PAL, M-PAL, SECAM (N-PAL : only compulsion mode)
480i, 480p, 575i, 720p, 1035i, 1080i
Y 1.0Vp-p (75 termination)
Cb/Cr 0.7Vp-p (75 termination)
Pb/Pr 1.0Vp-p (75 termination)
Type T.M.D.S
Video signal DC:150~1200mV, AC:1.56Vp-p
Sync signal TTL level
Type R.G.B separate
Video signal 0.7Vp-p (75 termination)
Sync signal H/V separate or composite, TTL level
200mVrms, 20k or less
0~200mVrms, 1k
1.2W + 1.2W (stereo)
AC100~120V/4.5A, AC220~240V/2.2A
400W
289 (W) × 124 (H) × 350 (D) mm
6.4kg (14lbs)
Operation : 0~35°C
Storage : -20~60°C
Remote control transmitter × 1
RGB cable × 1
Video/Audio cable × 1
Mouse cable × 1
Component cable × 1
Composite
Y/C
1.0Vp-p (75 termination)
0.3Vp-p (PAL/SECAM burst signal, 75 termination)
Y : 1.0Vp-p (75 termination)
C : 0.286Vp-p (NTSC burst signal, 75 termination)
POWER cord × 3
BATTERIES LR6 × 2
Carrying case × 1
Quick start guide × 1
CD-ROM(User's guide) × 1

3
3. Names of each part
Parts names
ZOOM Button
Used to adjust the size of the image.
MUTE Button
This button turns the sound on and
off. Press once to turn the sound off;
then press again to turn the sound
back on.
STANDBY / ON Button
Press this button to turn the power on
and off. When turned off, the
projector enters standby status.
LAMP Indicator
This lamp lights or blinks when the
lamp is off.
POWER Indicator
This indicator lights or blinks during
standby and during operation.
FOCUS Button
Used to adjust the focus of the image on
the screen.
INPUT Button
Press this button to switch the input. The
input changes in the following sequence
each time this button is pressed.
MENU Button
Displays the image menu.
RESET Button
Used to reset the initial settings.
TEMP Indicator
This indicator lights or blinks when the
internal temperature of the projector
rises and when the fan malfunctions.
RGB1 RGB2
DIGITAL
COMPONENT
S-VIDEO
VIDEO
Remote Control Sensor
Lens
Foot Adjuster
Lens Cap
Control Panel
Ventilation Openings
(exhaust)
Carrying Handle
Air Filter and Intake
for the Cooling Fan
Foot Adjuster
Control Panel
Front/Ri
g
ht View
Use the remote control transmitter in front of the remote control sensor at a
distance of about 5 m or less and an angle of 30 degrees to the left or right
of the center.

4
Remote Control Sensor
AC Inlet
Used to connect the accessory power cord.
Speaker
Power Switch
Used to turn the power on and off.
: OFF
: ON
Terminal Panel
(Refer below)
Rear/Left View
DIGITAL Terminal
Digital video receptacle
S-VIDEO Terminal
Mini DIN 4-pin connector
VIDEO Terminal
RCA jack
AUDIO(MONO)/L
Terminal
RCA jack
AUDIO R Terminal
RCA jack
USB Terminal
The mouse cursor can be
controlled by remote control
by connecting to a personal
computer.
RGB IN 1 Terminal
D-sub 15-pin shrink
RGB IN 2 Terminal
D-sub 15-pin shrink
RGB OUT Terminal
D-sub 15-pin shrink
CONTROL Terminal
D-sub 15-pin shrink
AUDIO IN RGB1
Terminal
Stereo mini-pin jack
AUDIO IN RGB2
Terminal
Stereo mini-pin jack
AUDIO OUT
Terminal
Stereo mini-pin jack
COMPONENT VIDEO
Y Terminal
RCA jack
CB/PB Terminal
RCA jack
CR/PR Terminal
RCA jack
Terminal Panel
Caution Connecting to the AC Inlet
Make sure the accessory power cord is plugged
into the AC Inlet as far as it will go. Incomplete
connection can result in re or electrical shock.

5
WARNING
The laser pointer of the remote control transmitter is used in place of a nger or rod. Never look
directly into the laser beam outlet or point the laser beam at other people. The laser beam can
cause vision problems.
STANDBY/ON Button
BLANK Button
Disk Pad
AUTO Button
MENU Button
MENU SELECT Button
, , , Button
MAGNIFY Button
Used to operate the
mouse shift function
and left click function.
Used to click the
left mouse button.
Used to operate the
mouse shift function.
VIDEO Button
LASER Button
RGB Button
MOUSE / RIGHT Button
POSITION Button
RESET Button
FREEZE Button
VOLUME Button
MUTE Button
ZOOM Button
Used to click the
right mouse button.
Used to click the
right mouse button.
REMOTE CONTROL TRANSMITTER
NOTE: To prevent any malfunction;
• Do not give the Remote control transmitter any physical impact. Take care not to drop.
• Do not place the heavy objects on the Remote control transmitter.
• Do not wet the Remote control transmitter or place it on any wet object.
• Do not place the Remote control transmitter close to the cooling fan of the projector.
• Do not disassemble the Remote control transmitter in case of malfunction. Please bring it to the service station.
: These functions works when the mouse control function is activated. Remember, the POSITION,
BLANK ON and MENU ON functions disable the mouse control function.
PinP Button
FOCUS Button

6
Message table
On-screen display
The following messages are displayed on the screen.
"CHANGE THE LAMP"
"AFTER REPLACING LAMP, RESET
THE LAMP TIMER"
"CHANGE THE LAMP"
"AFTER REPLACING LAMP,
RESET THE LAMP TIMER"
"THE POWER WILL TURN OFF
AFTER 20 Hr."
Blinking of "CHANGE THE LAMP"
"AFTER REPLACING LAMP,
RESET THE LAMP TIMER"
"THE POWER WILL TURN OFF
AFTER 0 Hr."
"NO INPUT IS DETECTED"
"SYNC IS OUT OF RANGE"
Lamp has 1,700 hours on it and may need to be changed.
Lamp has 2,000 hours on it.
See P.21 "Resetting the lamp timer"
When the lamp has 1,700 hours or more on it, the message will blink, and
the power will turns off after 10 minutes.
Signal is not input.
The horizontal or vertical frequency of the input signal exceeds the range
of the projector, it cannot be displayed.
Indicator display
The POWER indicator, LAMP indicator and TEMP indicator will light or blink in the following cases.
Lamp is not inserted or
lamp door is not closed.
Securely insert the lamp or
close the lamp door.
POWER indicator LAMP indicator TEMP indicator
Meaning Remedy
Lights orange
Lights red
Lights red
Lights red
Lights red
Lights green
Blinks green
Blinks orange
Standby mode
During warming up
During operation
During cooling down
Lamp cannot light
Cool projector by power off for
60 minutes.
If the indicator is still lit, lamp
may be defective. Replace.
Blinks red
Blinks red Cooling fan accidented Replace fan.
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
Goes off
When inside temperature becomes high, to protect the projector, the lamp may be turned off and the lamp indicator
lights red, or the projector will be shut down and the all indicator display goes off.

7
4. Adjustment
4 - 1 Before adjusting
1. Before starting adjustment, warm up the projector
for about 10 minutes. (Blank white)
2.Set Zoom Wide to Max. and project an image a
distance of more than 40 inches.
3.Normalizing the video adjustment.
(Press the [MENU] button of the Remote control
transmitter to display the Setup menu, then press
the [RESET] button. And select the [DEFAULT].)
*note : The setup menu is not displayed on with no
signal.
4. Perform all adjustments from the Adjustment menu.
Perform the following operations to display the
Adjustment menu.
a.Press the [MENU] button of the Remote control
transmitter (the Setup menu will appear).
b.Next, press the [RESET] button one time. And
press the [RESET] button again for 5 seconds or
more (the Adjustment menu will appear).
4 - 2 Ghost adjustment
Signals for internal adjustment
30%
30%
112/255
bit
0/255
bit
Adjustment procedure
1. Use DAC-P - GHOST - R: in the Adjustment menu
to adjust so that R color ghost is at a minimum.
(Set the adjustment value to 16, then raise the
value. When a ghost appears to the left of a vertical
line, reduce the value by 2 steps.)
2. In the same way, use DAC-P - GHOST-G: in the
Adjustment menu to adjust so that G color ghost is
at a minimum.
3. In the same way, use DAC-P - GHOST-B: in the
Adjustment menu to adjust so that B color ghost is
at a minimum.
4 - 3 Flicker adjustment (V.COM adjustment)
Signals for internal adjustment Adjustment procedure
1. Make this adjustment after completing the adjust-
ment in 4-2 Ghost adjustment.
2. Use DAC-P - V.COM - R: in the Adjustment menu
to adjust so that the flicker at the center of the
screen is less than the flicker at the periphery.
(When the flicker is about the same across the
whole screen, adjust so that the flicker at the center
of the screen is somewhat less than elsewhere.)
3. In the same way, use DAC-P - V.COM-G: in the
Adjustment menu to adjust the G color flicker.
4. In the same way, use DAC-P - V.COM-B: in the
Adjustment menu to adjust the B color flicker.

8
4 - 4 NRSH adjustment (vertical stripe adjustment)
Signals for internal adjustment
192
/255
bit
168
/255
bit
144
/255
bit
120
/255
bit
96
/255
bit
72
/255
bit
48
/255
bit
24
/255
bit
Adjustment procedure
1. Make this adjustment after completing the adjust-
ment in 4-3 Flicker adjustment.
2. Use DAC-P - NRSH - R: in the Adjustment menu to
adjust so that the vertical lines spaced every 12
dots are as inconspicuous as possible.
(Reduce the adjustment value when black stripes
appear in the 2nd or 3rd tone from the black side.
Note that when the adjustment value is lowered,
white stripes may appear in the 2nd or 3rd tone
from the bright side. Should this happen, adjust so
that the stripes are as inconspicuous as possible.)
3. In the same way, use DAC-P - NRSH - G: in the
Adjustment menu to adjust vertical stripes of G color.
4. In the same way, use DAC-P - NRSH - B: in the
Adjustment menu to adjust vertical stripes of B color.
4 - 5 White balance adjustment
Preparations
1. Perform these adjustment after the NRSH adjust-
ment described in Section 4-4.
2. Reset gamma correction before adjustment.
Place the cursor on [GAMMA] in the Adjustment
menu, press the [RESET] key and select
[DEFAULT].
Now press the [RESET] key again and press the
[MGNIFY-OFF] button of the Remote control trans-
mitter for 5 seconds or more (the confirming to
"MICRO" reset menu will appear).
Adjustment procedure
1. First, adjust the G color.
2. BRIGHT and CONTRAST set to MAX in the Setup
menu.
3. Place the cursor on Slide Show in the Adjustment
menu [A/D], press the [ ] key three times to display
G monochrome and adjust the illuminance at the
center of the screen. Make a note of the setting (here
assumed to be A [lx]). Press the MENU key to return.
4. BRIGHT and CONTRAST is returned to default in the
Setup menu.
5. Adjust Gamma, 93%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.84 2 [%]
6. Adjust Gamma, 86%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.71 2 [%]
7. Adjust Gamma, 75%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.53 2 [%]
8. Adjust Gamma, 43%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.155 2 [%]
9. Adjust Gamma, 29%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.0635 2 [%]
10.Adjust Gamma, 14%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.015 2 [%]

9
11.Before adjusting Gamma, 0%, and [G:], adjust
Gamma, 0%, R: and B: so that the following values.
[0%][R:] = -128
[0%][B:] = -128
12.Adjust Gamma, 0%, and G: in the Adjust menu so
that illuminance (Y) at the center of the screen is
adjusted as follows.
Y = A x 0.0055 2 [%]
But adjustment value is set to [-68] ~ [0].
13.Now, adjust the R and B colors.
14.Place the cursor on [BLACK-REF] in the Adjustment
menu [GAMMA]. Then measure the color coordi-
nates at the center of the screen and take a note of
the setting (here assumed to be x1, y1).
15.Adjust Gamma, 86%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.282 0.001
y = 0.340 0.002
16.Adjust Gamma, 93%, R: and B: so that the follow-
ing values.
[93%][R:] = [86%][R:]
[93%][B:] = [86%][B:]
17.Adjust Gamma, 75%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.282 0.001
y = 0.340 0.002
18.Adjust Gamma, 43%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.280 0.001
y = 0.340 0.002
19.Adjust Gamma, 29%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.275 0.001
y = 0.333 0.002
20.Adjust Gamma, 14%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = 0.260 0.001
y = 0.315 0.002
21.Adjust Gamma, 0%, R: and B: so that the color
coordinates (x, y) at the center of the screen take
on the following values.
x = x1 + 0.005 0.001
y = y1 + 0.005 0.002
Adjustment operations (reference)
93% operation
0 14 29 43 86 9375
100
Brightness
Adjustment
point
Input signal (%)
86% operation
0 14 29 43 86 9375
100
Brightness
Adjustment
point
Input signal (%)
75% operation
0 14 29 43 86 9375
100
Brightness
Adjustment
point
Input signal (%)
43% operation
0 14 29 43 86 9375
100
Brightness
Adjustment
point
Input signal (%)
29% operation
0 14 29 43 86 9375 100
Brightness
Adjustment
point
Input signal (%)
14% operation
0 14 29 43 86 9375 100
Brightness
Adjustment
point
Input signal (%)
0% operation
0 14 29 43 86 9375 100
Brightness
Adjustment
point
Input signal (%)

10
4 - 6 Color uniformity adjustment
Preparations
1. Perform these adjustments after the white balance
adjustment described in Section 4-5.
2. Make a color uniformity adjustment for the follow-
ing three tones.
MIN tone (approx. 18% input signal)
MID tone (approx. 50% input signal)
MAX tone (approx. 75% input signal)
3. Place the cursor on the tone to be adjusted in the
Adjust menu and press the [ ] key. This displays
the Adjust Tone menu at the bottom of the screen.
Select the major adjustment lattice point No. and
color, then adjust them.
4. The major adjustment lattice point numbers (a total
of 17 points) corresponds to the major adjustment
lattice point positions in the diagram on the right.
The color uniformity of the entire screen can be
adjusted by adjusting the white balance for each of
the points starting in order from the low numbers.
5. Adjustment point No.1 should not be adjusted,
because it controls the brightness of the entire screen.
6. To temporarily turn correction off, place the cursor
on "ON" in the Adjust Tone menu and press the
[] key. To turn it on again, place the cursor on
OFF in the Adjust Tone menu and press the [ ]
key.
7. Although this adjustment can also be made using
internal signals, we will here use the [MENU
SELECT] key on the Remote control transmitter to
select the following two signals.
Solid monochrome adjustment color (use G color
adjustment when a color differential meter is used).
Solid white (use for adjustment other than above).
8. Reset color shading correction before adjustment.
When 3 tones and all colors are to be reset, place
the cursor on [C.UNIF.] in the Adjustment menu,
press the [RESET] key and select [DEFAULT].
When only 1 tone is to be reset, place the cursor
on the tone to be reset, press the [RESET] key
and select [DEFAULT].
Single tone and monochrome resets cannot be
performed.
Adjust menu
VIDEO
ON
DAC-P S/HC. UNIF.
No. 1 R 0
LEVEL MIN MID MAX
OFF
G 0
B 0
Adjust Tone menu
Major adjustment lattice point No.
Major adjustment lattice point position
14
12
13
16
15 17
6
4
8
2
1
3
7
5
9
10
11
V/6
H/6 H/3 H/3 H/6
V/3
V/3
V/6

11
Adjustment procedure 1
(when a color differential meter is used)
1. First adjust [MIN] tone [G:].
Unless there is conspicuous black uniformity, there
is no need to adjust. (Go to step 10 if no adjustment
is required.)
2. Select adjustment point [No.2][G:].
When the background is [G] monochrome, press
the [MENU SELECT] key on the Remote control
transmitter to change to solid white.
3. Measure the color coordinates of adjustment point
[No.1] and make a note of them.
Assume that they are x = x1, y = y1.
Note : When the CL-100 color and color difference
meter is used, the [ ](delta) mode is conve-
nient. When adjustment point [No.1] color
coordinate has been selected, set the slide
switch on the side to [ ](delta) while holding
down the [F] button on the front panel. The
measurement shown after this displays the
deviation from measurement point 1.
4. Now measure the color coordinates of measure-
ment point [No.2]. If the y of the color coordinates is
more than 0.010, adjust [No.2] and [G:] so that the
color coordinates are as follows.
If y>y1+0.01,
y=y1+0.01 0.01
If y<y1-0.01,
y=y1-0.01 0.01
(Adjust y only)
5. Similarly, measure adjustment points [No.3] to
[No.9] and adjust their color coordinates starting in
order from the small number points.
6. Then measure the color coordinates for adjustment
point [No.10]. If the y of the color coordinates is
more than 0.020, adjust [No.10] and [G:] so that
the color coordinates are as follows.
If y>y1+0.02,
y=y1+0.02 0.01
If y<y1-0.02,
y=y1-0.02 0.01
7. Similarly, measure adjustment points [No.10] to
[No.17] and adjust their color coordinates starting
in order from the small number points.
8. Then adjust [MIN] tone [R] and [B].
Measure the color coordinates of measurement
point [No.2] and adjust [No.2][R:] and [B:] so that
the coordinates are as follows.
x = x1 0.005 , y = y1 0.010
9. Similarly, measure adjustment points [No.3] to
[No.17] and adjust their color coordinates starting
in order from the small number points.
This completes adjustments required for [MIN].
Note : Since excessive correction may lead to a
correction data overview during internal cal-
culations, use the following values for refer-
ence.
[No.2] to [No.5] 30 or less
[No.6] to [No.9] 40 or less
[No.10] to [No.13] 60 or less
10.Then adjust [MID] tone [G] so that the adjustment
data are same as [MIN] tone [G].
This completes [G] color adjustments.
11.Then adjust [MID] tone [R] and [B].
Select [No.2] [B:] and press the [MENU SELECT]
key on the Remote control transmitter to change
to solid white.
12.Measure the color coordinates of adjustment point
[No.1] and make a note of them.
Assume that they are x = x1, y = y1.
13.Now measure the color coordinates of measure-
ment point [No.2] and adjust [No.2][R:] and [B:] so
that the coordinates are as follows.
x = x1 0.005 , y = y1 0.010
14.Similarly, measure adjustment points [No.3] to
[No.17] and adjust their color coordinates starting
in order from the small number points.
This completes [MID] tone adjustments.
15.Now make similar adjustments for [MAX] tone.
(Adjust [MAX] tone [G] so that the adjustment data
are same as [MIN] tone [G].)

12
Adjustment procedure 2
(visual inspection)
1. First adjust [MIN] tone [G:].
Unless there is conspicuous black shading, there is
no need to adjust. (Go to step 9 if no adjustment is
required.)
2. Select [No.2] [G:].
If the background is [G] monochrome, press the
[MENU SELECT] key on the Remote control trans-
mitter to change to solid white.
3. View measurement point [No.2] and [No.3].
Lower the [G] color intensity only of the color point
whose [G] color is more intense than measurement
point [No.1].
4. View measurement point [No.10] and [No.11].
Lower the [G] color intensity only of the color point
whose [G] color is more intense than measurement
point [No.1], and raise the intensity of the point
whose color intensity is lower than measurement
point [No.1].
5. Now adjust the [MIN] tone for colors [R] and [B].
6. View measurement points [No.2], [No.3], [No.10]
and [No.11]. Adjust the [R] and [B] of each mea-
surement point so that they have the same color as
measurement point [No.1].
Adjustment technique:
First, adjust [B:] of the point whose color is to be
adjusted so that it approximates that of [No.1]. If [R:]
is low at this time, the image will have cyan cast, in
which case [R:] is increased. On the other hand, if
[R:] is excessive, the image will have a magenta
cast, in which case [R:] is decreased.
Overall, a cyan cast makes it easy to see color
shading.
7. Next, view measurement points [No.4], [No.5],
[No.12], [No.13] and make similar adjustments.
8.Then adjust measurement points [No.6], [No.7],
[No.8], [No.9], [No.14], [No.15], [No.16] and [No.17].
This completes the [MIN] tone adjustments.
9.Make similar [MID] tone and [MAX] tone as
described in steps 1 to 8 above.
8
3
16
17
9
11
6
14
2
12
15
13
10
7
4
1
5
8
3
16
17
9
11
14 12
15
13
10
4
1
5
6
2
7
8
3
16
17
9
11
6
2
12
13
14
15
10
7
4
1
5
14 12
15
13
10
4
1
5
6
2
7
8
3
16
17
9
11
17
9
15
13
75
3
17
9
11
15
13
10
1
5
6
2
7
8
16
17
9
6
12
13
7
4
5
14
12
10
4
1
6
2
8
3
16
17
9
11
3
11
2
10
1
1614
12
8
6
4
8
4
16
14
12
3
11
2
14
15
10
1
5
7
15 13
17
9
15
13
75
3
17
9
11
6
17
9
6
13
75
14
12
10
4
6
2
8
16
3
11
210
1
1614
12
8
6
4
8
4
16
14
12
3
11
2
14
15
10
5
7
15
10
1
2
13
15
5
7
12
4
1
8
17
13
1
3
11
16
95
17
9
15 13
75
3
17
9
11
6
17
9
6
13
75
14
12
10
4
6
2
8
16
3
11
2
1
1614
12
8
4
8
4
16
14
12
3
2
14
15
10
5
7
15
10
1
2
13
5
7
12
4
1
17
13
1
3
5
11
9
11
8
16
15
10
6
No. 2 deviation range No. 10 deviation range No. 3 deviation range No. 11 deviation range
No. 4 deviation range No. 12 deviation range No. 5 deviation range No. 13 deviation range
No. 6 deviation range No. 7 deviation range No. 8 deviation range No. 9 deviation range
No. 14 deviation range No. 15 deviation range No. 16 deviation range No. 17 deviation range

13
5. Troubleshooting
Check points at trouble shooting
1
1
36
1
36
36
1
14
1 36
14
14 113
EDS2
ESW1ERM1
EDI3
EFZ1
EMD1
30
1
EDI2
EPBX EPRX
EPGX
30
1
EDI1
PWB ass'y DRIVE
PROJECTION
LENS
The power supply input of PWB ass'y DRIVE
EDS2 Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Power supply voltage value
+9V
GND
+16.5V
GND
+5V
GND
+5V (standby)
GND
+4.3V
GND
<Top view without upper case>
Connectors on the back side of PWB ass’y DRIVE are drawn by dotted line.

14
Power can not be turned on
Power unit (circuit)
PWB ass'y FILTER FUSE
PWB ass'y DRIVE
NO
YES
YES
PWB ass'y VIDEO
YES
NO
YES
NO
NO
PWB ass'y DRIVE
NO
Is power LED lit
in orange ?
Does Projector turn
on by Remote ?
YES
Change the PWB
ass'y KEYBOARD.
Does power can
be turned on ?
PWB ass'y KEYBOARD
YES
NO
PWB ass'y TEMP
YES
It there sound like
"shu" when the Projector
turns on ?
NO
Disconnect
connector from PWB
ass'y TP-SW.
Does projector turn
on ?
Power unit (circuit)
Change the PWB
ass'y DRIVE.
Does power can
be turned on ?
Change the PWB
ass'y VIDEO.
Does power can
be turned on ?

15
Lamp does not light
PWB ass'y DRIVE
NO
YES
Not light
Blinks
Light
NO
NO
Power unit
(Ballast)
Power unit
(Ballast)
Power unit
(Circuit)
Power unit (Circuit)
Power unit (Circuit)
Set the Lamp
cover again
YES
YES
LAMP
NO
NO
Set the Lamp
again
NO
Disconnect
flexible connector from
EMD1 connector.
And light on?
PWB ass'y FAN
NO
YES
Replace the PWB
ass'y FAN and remove
the PWB ass'y DRIVE.
Does lamp light ?
What is the state of
LAMP indicator
during operation ?
Change the Lamp.
Does Lamp light ?
Change the
Power unit (Ballast).
Does Lamp light ?
Is the Lamp cover set ?
YES
YES
Is the Lamp installed
correctly ?
LIMIT SWITCH
(LAMP/LAMP DOOR)
YES
YES
NO
Change the
LIMIT SWITCH
(LAMP/LAMP DOOR).
Does Lamp light ?
Is TEMP indicator
flashing ?
NO
YES
Change the
Power unit (Ballast)
Does Lamp light ?
One of FANS is broke
change then one by
one and find out.

16
Picture is not displayed (is wrong)
when the RGB Signal is inputted.
NO
YES
Is RGB1 or a
picture of which of RGB2
displayed ?
PWB ass'y RGB
NO
YES
Change the PWB
ass'y RGB.
Is it repaired ?
PWB ass'y DRIVE
NO
YES
Picture is displayed when the VIDEO or DIGITAL.
PWB ass'y DRIVE
NO
YES
Picture is not displayed (is wrong)
when the DIGITAL Signal is inputted.
PWB ass'y DRIVE
PWB ass'y RGB
NO
YES
Change the PWB
ass'y DRIVE.
Is it repaired ?
Picture is displayed when the RGB or VIDEO is inputted.
Picture is not displayed (is wrong)
when the RGB Signal output Video picture is displayed. (Only RGB is wrong.)
PWB ass'y FAN
Change the PWB
ass'y DRIVE.
Is it repaired ?
PWB ass'y RGB
NO
YES
Change the PWB
ass'y RGB.
Is it repaired ?
PWB ass'y VIDEO
Power unit (Circuit)
NO
YES
Change the PWB
ass'y VIDEO.
Is it repaired ?
Change the PWB
ass'y DRIVE.
Is it repaired ?

17
Picture is displayed when the
Digital or RGB is inputted.
NO
Change the PWB
DRIVE.
It is repaired ?
PWB ass'y DRIVE
YES
PWB ass'y RGB
NO
YES
Change the PWB
RGB.
It is repaired ?
PWB ass'y VIDEO
Picture is not displayed (is wrong)
when the all signals are inputted.
NO
Change the PWB
DRIVE.
It is repaired ?
PWB ass'y DRIVE
YES
NO
NO
YES
Does a start up
screen come up ?
Check the DC
voltage on EDS2, PWB
ass'y DRIVE
correct ?
Change the PWB
ass'y VIDEO.
Is the issue fixed ?
YES
PWB ass'y RGB
LCD Panel
NO
Power unit (Circuit)
NO
YES
PWB ass'y VIDEO
YES
Change the PWB
RGB.
Is the RGB signal
displayed ?
1 : +9V
3 : +16.5V
5 : +5V
7 : +5V(standby)
9 ~
11 : +4.3V

18
No sound
NO
Change the SPEAKER.
Fixed ?
SPEAKER
YES
PWB ass'y FAN
NO
YES
Change the PWB
ass'y FAN.
Fixed ?
NO
PWB ass'y DRIVE
YES
Change the PWB
ass'y DRIVE.
Fixed ?
NO
PWB ass'y RGB
YES
Change the PWB
ass'y RGB.
Fixed ?
PWB ass'y VIDEO
Can not control mouse.
Can not control RS-232C.
NO
Change the PWB
ass'y DRIVE.
Fixed ?
PWB ass'y DRIVE
YES
PWB ass'y FAN
YES
Change the PWB
ass'y FAN.
Fixed ?
NO
PWB ass'y RGB
Can not control USB mouse
NO
Change the PWB
ass'y FAN.
Fixed ?
PWB ass'y FAN
YES
PWB ass'y DRIVE
YES
Change the PWB
ass'y DRIVE.
Fixed ?
NO
PWB ass'y RGB
YES
Change the PWB
ass'y RGB.
Fixed ?
NO
PWB ass'y VIDEO

19
6. Service points
6 - 1 POINT
Cautions when removing the Upper case
In the Upper case, an operation PWB is installed. When removing, lift carefully without using excessive force to
prevent damaging the ESW1 and ESW2 connector.
Cautions when removing the drive PWB
When removing the drive PWB, there is danger of damaging the connector connecting the fan PWB. Lift up the part
near the drive PWB connector and disconnect the connector before removing the drive PWB.
Before Replacing the LCD / Lens Prism
You should not replace separately the parts of the liquid crystal LCD / Lens Prism because it works properly only
when used together. Therefore, regarding these parts, you can either replace part , LCD / Lens Prism ass'y, or send
the whole unit LCD / Lens Prism ass'y back to SUPPLIER, where we will replace the malfunctioning part,
recondition the device and send it back to you. In that case please contact our distributor.
Do not disassemble the unit
because replacement of separate
parts is not possible.
For repairs of the product, please
contact our distributor.
DISTRIBUTOR SUPPLIER
Replacement of G Panel Reconditioning
Return
G Panel
ESW2
CNSW
ESW1
PWB ass'y drive
Connector

20
Also LAMP indicator will light when the lamp becomes too hot. Turn off the power and let the
projector cool for 45 minutes. Turn on.
Caution
How to replace lamp (Option lamp : Lamp unit DT00341)
When replacing lamp, turn off and remove AC cord, wait 45 minutes to let lamp cool. High-
pressure lamp when hot, may explode if improperly handled.
HIGH VOLTAGE
HIGH TEMPERATURE
HIGH PRESSURE
For disposal of used lamp, treat according to the instruction of community authorities.
Since the lamp is made of glass, do not apply shock to it and do not scratch it.
Also, do not use old lamp. This could also cause explosion of the lamp.
If it is probable that the lamp has exploded (explosive
sound is heard), disconnect the power plug from the
power outlet and replace lamp.
In rare cases, the reector and the inside of the projector
may be damaged by scattered broken pieces of glass, and
broken pieces could cause injury when being handled.
Caution
1. Turn the main power switch off and disconnect the power
plug from the power outlet.
2. Remove the lamp cover.
If lamp is hot at this time, this could cause burn. Wait for
minimum 45 minutes until lamp is cooled down.
Loosen a screw and remove the cover.
3. Loosen two screws and pull the handle to remove the
lamp.
If the screws are not loosened completely, your ngers
may be damaged.
Do not insert your hand into the box after the lamp is
removed.
(There are optical parts inside. If touched by hand, it may
result in color unevenness, etc.) Lamp
Screw
6 - 2 About Lamp Replacement
Light source lamp has a service life.
The picture will become dark or color will be poor when the lamp is used for a long time.
If usage of lamp is continued in such cases, it could cause a malfunction. Replace lamp with new one.
As reference for replacement time, indicator will operate or message will be displayed when the power is turned on.
In these cases the lamp should be replaced.
Front glass
Reector
Lamp
Lamp cover
Screw