Hitachi EDX-31-EP, EDX-31-GEP, EDX-33-EP, EDX-33-GEP Service manual
SM0313
ED-X31EP(C14B-20)
SERVICE MANUAL
ED-X33EP(C14B-20)
ED-X31GEP(C14D-20)
ED-X33GEP(C14D-20)
Warning
The technical information and parts shown in this
manual are not to be used for: the development,
design, production, storage or use of nuclear, chemical,
biological or missile weapons or other weapons of
mass destruction; or military purposes; or purposes that
endanger global safety and peace. Moreover, do not
sell, give, or export these items, or grant permission for
use to parties with such objectives. Forward all inquiries
to Hitachi Ltd.
Caution
Be sure to read this manual before servicing. To assure safety from fi re, electric shock, injury, harmful
radiation and materials, various measures are provided in this Hitachi Multimedia LCD Projector.
Be sure to read cautionary items described in the manual to maintain safety before servicing.
Service Warning
1. When replacing the lamp, avoid burns to your fi ngers,the lamp becomes very hot.
2. Never touch the lamp bulb with a fi nger or anything else. Never drop it or give it a shock. They may
cause bursting of the bulb.
3. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of
the power unit (circuit) or the power unit (ballast) after 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 LENS/PRISM assembly,
do not hold the FPC of the LCD module assembly.
6. Use the cables which are included with the projector or as specifi ed.
Contents
1. Features ------------------------------------------------------ 2
2. Specifi cations ----------------------------------------------- 2
3. Names of each part---------------------------------------- 4
4. Adjustment---------------------------------------------------7
5. Troubleshooting ------------------------------------------ 14
6. Service points --------------------------------------------- 19
7. Wiring diagram-------------------------------------------- 34
8. Disassembly diagram ----------------------------------- 43
9. Replacement parts list ---------------------------------- 51
10. RS-232C communication ------------------------------ 52
11. Block diagram --------------------------------------------- 72
12. Connector connection diagram ----------------------- 73
13. Basic circuit diagram ------------------------------------ 74
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Multimedia LCD Projector
March 2008
ED-X31E / ED-X33E (C14B-20)
1. Features
• High Brightness • Rich Connectivity
• Low Noise • Powerful Sound
2. Specifications
Liquid
crystal
panel
Lamp 220W UHB
Computer
signal
VIDEO
signal
AUDIO
signal
RS232C
USB
(Mouse)
Audio output 7W
Power supply AC100~120V/3.5A, AC220~240V/1.5A
Power consumption 320W
Dimensions 340 (W) x 100 (H) x 270 (D) mm (Not including protruding parts)
Weight 3.5kg
Temperature range
Accessories
Drive system TFT active matrix
Panel size 1.6cm(0.63 type)
Number of pixels 1024 (H) x 768 (V)
Computer IN
Computer OUT
VIDEO IN 1.0Vp-p (75 termination)
S-VIDEO IN
COMPONENT
VIDEO
AUDIO IN 1
AUDIO IN 2
AUDIO IN 3 L/R 200mVrms, 47k or more (max. 2Vrms)
AUDIO OUT output impedance 1k (max. 2Vrms)
INPUT Hi: Max. 20V, Min. 2.6V Lo: Typ. –20.0V, Max. 0.8V
OUTPUT Hi: Typ. 8.0V, Min. 5.0V Lo: Typ. –7.0V, Max. –5.0V
I/O Level
(differential)
1
2
Y 1.0±0.1Vp-p, 75 termination (positive)
B/PB
C
R/PR
C
Amplitude of
differential signal
Amplitude of
signal
Video : Analog 0.7Vp-p(75 termination)
H/V. sync. : TTL level (positive/negative)
Composite sync. : TTL level
Video:Analog 0.7Vp-p, 75 output impedance (positive)
H/V. sync.: TTL level (positive/negative)
Composite sync.: TTL level
Y signal: 1.0±0.1Vp-p, (75 termination)
C signal: 0.286±0.1Vp-p (NTSC burst signal, 75 termination)
0.3±0.1Vp-p (PAL/SECAM burst signal, 75 termination)
0.7±0.1Vp-p, 75 termination (positive)
0.7±0.1Vp-p, 75 termination (positive)
200mVrms, 47k or more (max. 2Vrms)
| (D+) - (D–) | > 0.2V
D+ > 2.8V, D– < 0.3V or D+ > 2.8V, D– < 0.3V
INPUT: “L” = 0.8V or less, “H” = 2.0V or more
OUTPUT: “L” = 0.3V or less, “H” = 2.8V ~ 3.6V
Operation : 5~35°C
Storage : -20~60°C
Remote control x1
RGB cable x 1
Power cords x 2
Batteries x 2
User’s manuals x 1
LENS CAP and STRAP x 1
Audio/Video cable x 1
2
ED-X31GE / ED-X33GE (C14D-20)
1. Features
• High Brightness • Rich Connectivity
• Low Noise • Powerful Sound
2. Specifications
Liquid
crystal
panel
Lamp 230W UHB
Computer
signal
VIDEO
signal
AUDIO
signal
RS232C
USB
(Mouse)
Audio output 10W x 1
Power supply AC100~120V/3.5A, AC220~240V/1.5A
Power consumption 320W
Dimensions 340 (W) x 100 (H) x 270 (D) mm (Not including protruding parts)
Weight 3.5kg
Temperature range
Accessories
Drive system TFT active matrix
Panel size 1.6cm(0.63 type)
Number of pixels 1024 (H) x 768 (V)
Computer IN
Computer OUT
VIDEO IN 1.0Vp-p (75 termination)
S-VIDEO IN
COMPONENT
VIDEO
AUDIO IN 1
AUDIO IN 2
AUDIO IN 3 L/R 200mVrms, 47k or more (max. 2Vrms)
AUDIO OUT output impedance 1k (max. 2Vrms)
INPUT Hi: Max. 20V, Min. 2.6V Lo: Typ. –20.0V, Max. 0.8V
OUTPUT Hi: Typ. 8.0V, Min. 5.0V Lo: Typ. –7.0V, Max. –5.0V
I/O Level
(differential)
1
2
Y 1.0±0.1Vp-p, 75 termination (positive)
B/PB
C
R/PR
C
Amplitude of
differential signal
Amplitude of
signal
Video : Analog 0.7Vp-p(75 termination)
H/V. sync. : TTL level (positive/negative)
Composite sync. : TTL level
Video:Analog 0.7Vp-p, 75 output impedance (positive)
H/V. sync.: TTL level (positive/negative)
Composite sync.: TTL level
Y signal: 1.0±0.1Vp-p, (75 termination)
C signal: 0.286±0.1Vp-p (NTSC burst signal, 75 termination)
0.3±0.1Vp-p (PAL/SECAM burst signal, 75 termination)
0.7±0.1Vp-p, 75 termination (positive)
0.7±0.1Vp-p, 75 termination (positive)
200mVrms, 47k or more (max. 2Vrms)
| (D+) - (D–) | > 0.2V
D+ > 2.8V, D– < 0.3V or D+ > 2.8V, D– < 0.3V
INPUT: “L” = 0.8V or less, “H” = 2.0V or more
OUTPUT: “L” = 0.3V or less, “H” = 2.8V ~ 3.6V
Operation : 5~35°C
Storage : -20~60°C
Remote control x1
RGB cable x 1
Power cords x 2
Batteries x 2
User’s manuals x 1
LENS CAP and STRAP x 1
Audio/Video cable x 1
3
3. Names of each part
Projector
Ɣ
(1) Lamp cover
The lamp unit is inside.
(2) Focus ring
(3) Zoom ring
(4) Control panel
(5) Elevator buttons (x 2)
(6) Elevator feet (x 2)
(7) Remote sensor
(8) Lens
(9) Lens cover
(10) Intake vents
(11) Filter cover
The air filter and intake vent are
inside.
(12) Speaker
(13) Exhaust vent
(14) AC inlet
(15) Power switch
(16) Rear panel
(17) Security bar
(18) Security slot
ED-X31E / ED-X33E (C14B-20)
HOT!
(6)
(8)
(9)
(13)
HOT!
(4)
(1) (2) (3) (4)
(7)
(6)
(5)
(6)
(12)
(11)
(10)
(6)
(10)
(11)
WARNING
(18)
(16)
(17)
(13)
(1)
ŹHOT! : Do not touch around the lamp cover and the exhaust vents during use
(14)
(15)
or just after use, since it is too hot.
ŹDo not look into the lens or vents while the lamp is on, since the strong light is not good for your
eyes.
ŹDo not handle the elevator buttons without holding the projector, since the projector may drop
down.
CAUTION
ŹMaintain normal ventilation to prevent the projector from heating up. Do not
cover, block or plug up the vents. Do not place anything that can stick or be sucked to the vents,
around the intake vents. Clean the air fi lter periodically.
ŹDo not use the security bar and slot to prevent the projector from falling down, since it is not
designed for it.
4
ED-X31E / ED-X33E (C14B-20)
Control panel
(1) STANDBY/ON button
(2) INPUT button
(3) MENU button
It consists of four cursor buttons.
(4) POWER indicator
(5) TEMP indicator
(6) LAMP indicator
Rear panel
(1) AUDIO IN1 port
(2) AUDIO IN2 port
(3) AUDIO OUT port
(4) COMPUTER IN1 port
(5) COMPUTER IN2 port
(6) MONITOR OUT port
(7) Shutdown switch
(8) (4) (5) (6) (7)
(6)
(5)
(4)
(1) (2)(3)
(8) CONTROL port
(9) USB port
(10) COMPONENT
(Y, Cb/Pb, Cr/Pr) ports
(11) VIDEO port
(12) S-VIDEO port
(13) AUDIO IN3 (L,R) ports
(1)
CAUTION
(9) (13) (12) (3)(11) (10)
ŹUse the shutdown switch only when the projector is not turned off by normal procedure,
(2)
since pushing this switch stops operation of the projector without cooling it down.
5
Remote control
ED-X31E / ED-X33E (C14B-20)
(1) VIDEO button
(2) COMPUTER button
(3) SEARCH button
(4) STANDBY/ON button
(5) ASPECT button
(6) AUTO button
(7) BLANK button
(8) MAGNIFY - ON button
(9) MAGNIFY - OFF button
(10) MY SOURCE/DOC.CAMERA button
(11) VOLUME - button
(12) PAGE UP button
(13) PAGE DOWN button
(14) VOLUME + button
(15) MUTE button
(16) FREEZE button
(17) MY BUTTON - 1 button
(18) MY BUTTON - 2 button
(19) KEYSTONE button
(20) POSITION button
(21) MENU button
(22) Ÿ/ź/Ż/Ź cursor buttons
(23) ENTER button
(24) ESC button
(25) RESET button
(26) Battery cover
(2)
(1)
(6)
(5)
(16)
(8)
(9)
(19)
(17)
(20)
(22)
(24)
COMPUTER
VIDEO
AUTO
ASPECT SEARCH
FREEZE
MAGNIFY
ON
OFF
KEYSTONE
MY BUTTON
12
POSITION
ENTER
ESC
R007
MY SOURCE/
DOC.CAMERA
PAGE
UP
DOWN
BLANK
VOLUME
MUTE
MENU
RESET
(10)
(4)
(3)
(7)
㧗
(12)
(14)
(11)
(13)
(15)
(18)
(21)
(23)
(25)
Back of
the remote control
WARNING ŹDo not look into the beam outlet and point the beam at people and pets while pressing
the LASER button, since the beam is not good for eyes.
CAUTION Ź
only for pointing on the screen.
Note that the laser beam may result in hazardous radiation exposure. Use the laser pointer
(26)
6
ED-X31E / ED-X33E (C14B-20)
4. Adjustment
4-1 Before adjusting
4-1-1 Selection of adjustment
When any parts in the table 4-1 are changed, choose the proper adjusting items with the chart.
Table 4-1: Relation between the replaced part and adjustment
Replaced
part
Dichroic
optics unit
LCD/LENS
prism
assembly
PWB
assembly
Main
Lamp
unit
assembly
Flicker
(Chap.4-2)
Ghost
(Chap.4-3)
: means need for adjustment. : means not need for adjustment.
: means recommended.
Adjustment
DC OFF
(Chap.4-4)
E-POS
(Chap.4-5)
White
balance
(Chap.4-6)
Color
uniformity
(Chap.4-7)
4-1-2 Setting of condition before adjustments
1. Before starting adjustments, warm up projector
for about 10 minutes.
Turn off the automatic keystone function in OPTION
Menu.
If you changed [AUTO KEYSTONE] from [TURN
ON] to [TURN OFF], set to the [TURN ON] after
adjustment.
2. Set Zoom Wide to Max. And project an image
with more than 1m (40 inches) in diagonal size.
3. Set the lens position to the center, using horizontal
and vertical lens shift dials.
4. Normalizing the video adjustments
Press the [MENU] button to display the EASY
menu. If Advanced menu comes up, move to the
Easy menu.
Select the RESET in the EASY menu and press
the [ ] or [ENTER] button to open the RESET dia-
log. Choose the EXECUTE with the [ ] button.
Note that the projector will not allow you to reset
its adjustment values with no signal input.
5. Perform all adjustments from the FACTORY
MENU. Operate as follows to display the FAC-
TORY MENU.
When you use the remote control...
a. Press the [MENU] button of the remote con-
trol to display the Easy menu. (If the Ad-
vanced menu appears, move to the Easy
menu.)
b. Select the RESET in the Easy menu, and
then press the [
] or [ENTER] button.
c. Next, press the [RESET] button one time. And
hold the [RESET] button for 3 seconds or lon-
ger (the FACTORY MENU will appear).
When you use the keypad of the projector...
a. Press the
[ ],
[ ],
[ ]
or [
] button of the pro-
jector to display the Easy menu. (If the Ad-
vanced menu appears, move to the Easy
menu.)
b. Select the RESET in the Easy menu, and
then press the [ ] or [ENTER] button.
c. Next, press the [ ] button one time. And re-
press and hold the [ ] button together with
the [INPUT] button for 3 seconds or more (the
FACTORY MENU will appear).
7
ED-X31E / ED-X33E (C14B-20)
4-2 Flicker adjustment
(V.COM adjustment)
Test pattern for the adjustment
128/255
4-3 Ghost adjustment
Test pattern for the adjustment
30%
30%
4-4
DC OFF adjustment
Test pattern for the adjustment
160
/255
0/255
112/255
(vertical bars adjustment 1)
64
/255
88
/255
112
/255
136
/255
160
/255
136
112
/255
/25588/25564/255
Press ENTER key
Adjustment procedure
1.
Use DAC-P - V.COM - R: in the FACTORY
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.)
2. In the same way, use DAC-P - V.COM-G: in the
FACTORY MENU to adjust the G color flicker.
3. In the same way, use DAC-P - V.COM-B: in the
FACTORY MENU to adjust the B color flicker.
NOTE: The test pattern shown on the left sometimes has a horizontal line across the screen.
Adjustment procedure
1. Make this adjustment after completing the ad-
justment in the section 4-2.
Set 0 to the GHOST R, G, B in OPTION-SERVICE-
GHOST Menu.
2.
Use DAC-P - GHOST - R: in the FACTORY MENU
to adjust so that R color ghost is at a minimum.
(Set the adjustment value to default, and then
raise the value. When a ghost appears to the left
of a vertical line, reduce the value by 6 steps.)
3. In the same way, use DAC-P - GHOST-G: in
the FACTORY MENU to adjust so that G color
ghost is at a minimum.
4. In the same way, use DAC-P - GHOST-B: in
the FACTORY MENU to adjust so that B color
ghost is at a minimum.
Adjustment procedure
1. Make this adjustment after completing the ad-
justment in the section 4-3.
2.
Use STRIPE - DCOFF - No. 0 - R : in the FACTO-
RY MENU and use it so that vertical bars are min-
imized.
3. In the same way, use STRIPE - DCOFF - No. 0 -
G : in the FACTORY MENU and use it so that
vertical bars
are minimized.
4. In the same way, use STRIPE - DCOFF - No. 0 -
B : in the FACTORY MENU and use it so that
vertical bars
are minimized.
8
ED-X31E / ED-X33E (C14B-20)
4-5
E-POS adjustment (vertical bars adjustment 2)
Test pattern for the adjustment
112/255
4-6
White balance adjustment
Preparations
1. Perform these adjustments after the adjustments described in Section 4-5.
Adjustment procedure
1. First, adjust the G color.
2.
Select GAMMA, SUB-CNT, and G: in the FACTORY
MENU. If the background is white solid, press the
[ENTER] key on the Remote control transmitter to
change to [G] monochrome in the 33-tone grayscale.
3. Adjust GAMMA, SUB-CNT, and G: in the FACTORY MENU so that brightness of 33 steps is
best.
4. Don’t adjust GAMMA, SUB-BRT, and G: in the
FACTORY MENU because we want to keep the
best contrast ratio.
5. Then adjust colors R and B.
(visual inspection)
Adjustment procedure
1. Make this adjustment after completing the ad-
justment in the section 4-4.
2.
Use DAC -P - E-POS - R in the FACTORY MENU
and use it so that vertical bars are minimized.
3. In the same way, select DAC-P - E-POS - G
and use it so that vertical bars
4. In the same way, select DAC-P - E-POS - B
and use it so that vertical bars
2. Reset gamma correction before adjustment.
Place the cursor on [GAMMA] in the FACTORY
MENU, press the [RESET] key and select RESET.
6.
Select GAMMA, SUB-CNT, and G: in the FACTORY
MENU. If the background is white solid, press the
[ENTER] key on the remote control to change to [W]
monochrome in the 33-tone grayscale.
7. Adjust GAMMA, SUB-BRT, R: and B: in the
FACTORY MENU so that low-brightness white
balance is best.
8. Adjust GAMMA, SUB-CNT, R: and B: in the
FACTORY MENU so that middle-brightness
white balance is best.
9. Repeat steps 7 to 8 above, and adjust so that
brightness white balance of 33 steps is best.
are minimized.
are minimized.
9
ED-X31E / ED-X33E (C14B-20)
4-7 Color uniformity adjustments
Preparations
1.
Perform these adjustments after the adjustments
described in the section 4-6.
2. Make a color uniformity adjustments for the fol-
lowing tones.
MIN tone (approx. 7% input signal)
MID-1 tone (approx. 14% input signal)
MID-2 tone (approx. 21% input signal)
MID-3 tone (approx. 29% input signal)
MID-4 tone (approx. 36% input signal)
MID-5 tone (approx. 50% input signal)
MID-6 tone (approx. 61% input signal)
MAX tone (approx. 75% input signal)
NOTE: The brightness level of the test patterns
in MID-4 and MID-6 is selectable.
3. Select the [C.UNIF.] in the FACTORY MENU
and press the [
the Adjust Tone menu (shown below) on the
bottom of the screen.
To choose the tone to be adjusted, press the [
] key and then use the [ ] or [ ] key.
Select the major adjustment lattice point No.
and color, and then adjust them.
4. The major adjustment lattice point numbers (a
total of 17 points) corresponds to the major ad-
justment 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.
FACTORY MENU
VID-AD
C. UNIF.
DAC-P
GAMMA
STRIPE
OPTION
Adjust tone menu
] key. This operation displays
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 cur-
sor on [C.UNIF.] in the Adjust Tone menu and
press the [ ] key. The ON/OFF menu appears.
Place the cursor on [ON] with the [ ] key and
press the [ ] key. To turn it on again, place the
cursor on [OFF] and press the [ ] key.
7. Although this adjustment can also be made us-
ing internal signals, we will here use the [EN-
TER] key on the remote control to select the fol-
lowing two signals.
Solid monochrome adjustment color (use G
color adjustment when a color differential me-
ter is used).
Solid white (use for adjustment other than
above).
8. Reset color-shading correction before adjust-
ment.
When resetting all values of 8 tones and all
colors, place the cursor on [C.UNIF.] in the
FACTORY MENU, press the [RESET] key and
select RESET in the dialog.
When resetting only 1 tone, place the cursor
on the tone such as MID-1 to be reset, press
the [RESET] key and select RESET in the di-
alog.
Single tone and monochrome resets cannot
be performed.
Major adjustment lattice point position
14 12
H/6 H/3 H/3 H/6
V/6
6 4 8
V/3
16
C.UNIF
ON/OFF ON
MIN
MID-1
MID-2 ... 6
MAX
OFF
No. 1 R 0
Major adjustment lattice point No.
G 0 B 0
10
10 11
2 1 3
V/3
7 5 9
V/6
15 17
13
ED-X31E / ED-X33E (C14B-20)
Adjustment procedure 1
(When a color differential meter is used)
1. First adjust the [MID-1] tone [G:].
2. Select adjustment point [No.2][G:].
When the background is not [G] monochrome,
press the [ENTER] key on the remote control to
switch to solid [G] monochrome.
3. Measure the illumination at adjustment points
No. 2, No.3, No.10 and No.11.
The values should be:
No.2 = Y2 [lx] No.10 = Y10 [lx]
No.3 = Y3 [lx] No.11 = Y11 [lx]
4. No.2 and No.3 adjustment points have the aver-
age of Y2 and Y3.
Y2 = ( Y2 + Y3 ) / 2 ± 2 [%]
Y3 = ( Y2 + Y3 ) / 2 ± 2 [%]
5. No.10 and No.11 adjustment points have the
average of Y10 and Y11.
Y10 = ( Y10 + Y11 ) / 2 ± 2 [%]
Y11 = ( Y10 + Y11 ) / 2 ± 2 [%]
6. Then adjust the [MID-1] tone [R] and [B].
When the background is [G] monochrome,
press the [ENTER] key on the remote control to
switch to solid white.
7. 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 differ-
ence meter is used, the [ ¨ ](delta) mode
is convenient. When adjustment point
[No.1] color coordinate has been select-
ed, set the slide switch on the side to
[¨ ](delta) while holding down the [F] but-
ton on the front panel. The measurement
shown after this displays the deviation
from measurement point 1.
8. 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 start-
ing in order from the small number points.
This completes adjustments required for
[MID-1].
Note: Since excessive correction may lead to a
correction data overview during internal
calculations, use the following values for
reference.
[No.2] to [No.5] ± 40 or less
[No.6] to [No.9] ± 50 or less
[No.10] to [No.13] ± 70 or less
[No.14] to [No.17] ± 120 or less
10. Then adjust the [MIN] tone [G] so that the ad-
justment values are two times as much as
MID-1] tone [G] values.
This completes [G] color adjustments.
11. Then adjust [MIN] tone [R] and [B].
Select [No.2] [B:] and press the [ENTER] 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 mea-
surement 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 (Target)
x = x1 ± 0.020 , y = y1 ± 0.040
14. Similarly, measure adjustment points [No.3] to
[No.17] and adjust their color coordinates start-
ing in order from the small number points.
This completes [MIN] tone adjustments.
15. Now make similar adjustments for [MID-2] tone.
(Adjust [MID-2] tone [G] so that the adjustment
data set half as many as [MID-1] tone [G].)
16. Now make similar adjustments for [MID-3],
[MID-5], [MAX] tones. (It is not necessary to ad-
just the [G] data in these tones.)
17. After completing the step 16, set the value of
the [MID-4] tone [R]: [No.2] to the mean of the
values of the [R]: [No.2] in the [MID-3] and
[MID-4] tones.
18. Set all the values for the [No.2] to [No.17] of
the [MID-4] tone [R] and [B] in the same way as
the step 17.
19. Finally, set the data of the [MID-6] tone [R] and
[B] using the values of the [MID-5] and [MAX]
tones in the same way as the [MID-4] tone [R]
and [B] adjustments in the step 17 and 18.
11
ED-X31E / ED-X33E (C14B-20)
Adjustment procedure 2
(visual inspection)
1. First adjust [MIN] tone [G:].
2. Select [No.2] [G:].
If the background is [G] monochrome, press the
[ENTER] key on the remote control to switch 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 inten-
sity 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 measurement 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 im-
age 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.
Then adjust measurement points [No.6], [No.7],
8.
[No.8], [No.9], [No.14], [No.15], [No.16] and [No.17].
This completes the [MIN] tone adjustments.
9. Make similar adjustments for other tones, ex-
cept the [MID-4] and [MID-6] tones, as de-
scribed in steps 1 to 8 above.
No. 2 deviation range No. 10 deviation range No. 3 deviation range No. 11 deviation range
14
10
15
12
6
4
2
1
5
7
13
16
8
3
11
9
17
14
10
15
12
4
6
1
2
5
7
13
16
8
11
3
9
17
14
10
15
12
6
4
2
1
5
7
13
16
8
3
11
9
17
14
10
15
12
4
6
2
1
5
7
13
16
8
3
11
9
17
No. 4 deviation range No. 12 deviation range No. 5 deviation range No. 13 deviation range
14
10
15
12
6
4
1
5
7
13
16
8
3
112
9
17
14
10
15
12
6
4
2
1
5
7
13
16
8
3
11
9
17
14
10
15
12
4
6
1
2
5
7
13
16
8
11
3
9
17
14
10
15
12
4
6
1
2
5
7
13
16
8
3
11
9
17
No. 6 deviation range No. 7 deviation range No. 8 deviation range No. 9 deviation range
14
10
15
12
6
4
1
2
5
7
13
16
8
3
11
9
17
10
15
14
12
6
4
1
2
5
7
13
16
8
11
3
9
17
14
10
15
12
6
4
2
1
5
7
13
16
8
11
3
9
17
14
10
15
12
4
6
2
1
5
5
7
13
16
8
3
11
9
17
No. 14 deviation range No. 15 deviation range No. 16 deviation range No. 17 deviation range
14
12
4
6
16
8
14
12
4
6
16
8
14
12
6
4
16
8
14
12
6
4
16
8
10
15
1
2
5
7
13
11
3
9
17
10
15
2
1
5
7
13
11
3
9
17
10
15
3
1
2
15
10
5
5
7
13
2
1
5
7
13
11
3
9
17
11
9
17
12
ED-X31E / ED-X33E (C14B-20)
4-8 Adjusting the zoom and focus
1. Use the zoom ring to adjust the screen size.
2. Use the focus ring to focus the picture.
Focus ring
Zoom ring
13
5. Troubleshooting
Check points
ED-X31E / ED-X33E (C14B-20)
14
ED-X31E / ED-X33E (C14B-20)
Power can not be turned on
Are
voltage
supplied at pins (8)
and (13) of E800 on the PWB
assembly MAIN in standby
mode?
(8): +6.0V
(13): GND
YES
*: Be sure to unplug the power cord before measuring resistance.
NO
Measure resistance*
between pins (8) and (13) of
E800.
Open
Disconnect TSW
from power unit circuit, and
measure resistance of
TSW.
Short
Power unit (circuit)
0
Open
Fuse on the power unit
(circuit)
PWB assembly MAIN
Power unit (circuit)
Thermal switch (TSW)
Are voltage
supplied at pins (2),
(3), (5), (6) of E800 on the PWB
assembly MAIN in standby
mode?
(2): +14V
(3): GND(for +14V)
YES
(5): +17V
(6): GND(for +17V)
Does
LAMP (DK03) or
TEMP (DK02) indicator light
or blink?
NO
Measure
resistance* between
pins (1) and (2) of S801 when
the lamp door is secure.
0
PWB assembly MAIN
NO
YES
Open
Measure
resistance* between
pins (2) and (3), and between
pins (5) and (6) of
E800.
Open
Power unit (circuit)
Go to the next page
Lamp door
Re-attach lamp
door
Re-attach PWB
assembly MAIN
0
PWB assembly MAIN
Power unit (circuit)
15
ED-X31E / ED-X33E (C14B-20)
**: DC fan connectors are E801,
E802, E803, E804 and E805.
Lamp does not light
What
is the state of
LAMP indicator DK03
during operation?
Not light
the PWB assembly MAIN
*: Be sure to unplug the power cord
before measuring resistance.
Light
Is the
LAMP installation
correct?
YES
Is the
voltage at
the (4) of E807 on
fixed to "L" during
warming-up?
Not light
Change the
lamp. Does lamp
light?
NG
install the Lamp
YES
“L” = 0V
PWB assembly
MAIN
Light
Lamp
NO (0V)
PWB assembly
MAIN
NO (0V)
PWB assembly
MAIN
Correct
PWB assembly
MAIN
Are
the voltage
supplied to the pin
(2) of connectors** for
DC fans soon after
the button is
pressed?
YES
(5V or higher)
Is
the
voltage supplied
to the pin (4) of E805
and E804 soon after
the button is
pressed?
YES
(1V or higher)
Observe
the voltage
waveforms at pin (1) of
connectors for DC fans**
soon after the button
is pressed.
incorrect
Power unit (ballast)
Blinks
at the (1) of E807 on the
PWB assembly MAIN set to
Correct waveform is drawn below.
What
is the state of
TEMP indicator
DK02?
Not light
and blink
Is
the voltage
"L" during warming-
up?
No
Power unit (ballast)
No
Lights
PWB assembly MAIN
of E1 and E2 after
disconnecting them
from MAIN
Thermistor
YES
“L” = 0V
Power unit (circuit)
Measure
resistance
board.
NG (open / short)
(E1/E2)
OK
PWB assembly
MAIN
E2: 5 to 20k
E1: 0.5 to 2k
DC fan
(failed in above check)
f 40Hz
16
ED-X31E / ED-X33E (C14B-20)
Picture is not displayed when the RGB signal is input
Are
the splash screen
and the user menu displayed
correctly?
YES
YES
Is the
picture from RGB
out port displayed correctly
on another monitor
display?
YES
No
No
PWB assembly MAIN
THS7327PHPR
SN74LV14APW
Confirm
the LCD Panels
connection to the MAIN
board.
OK
PWB assembly MAIN LCD/Lens prism assembly
(IS21)
(IS22)
NG
CPC40 connector
PWB assembly MAIN THS7327PHP
(IS21)
Picture is not displayed when the Video, S-Video or component signal is input
Are
the splash
screen and the user menu
displayed correctly?
YES
PWB assembly MAIN
No
PWB assembly INPUT
Confirm
the LCD Panels
connection to the MAIN
board.
OK
PWB assembly MAIN LCD/Lens prism assembly
NG
CPC36 connector
17
ED-X31E / ED-X33E (C14B-20)
No sound
Check at operating mode
(Make sure the state of MUTE , Volume and AUDIO-SPEAKER)
Disconnect
the speaker from the
PWB assembly Main and
measure its
resistance.
about 8
PWB assembly Main PWB assembly INPUT
infinity
Speaker
Can not control to RS-232C
Check the
RS-232C cable.
Are pin No. 2 and 3
crossed?
YES
Are the
signals input at each
pins on the Cable?
Pin
Pin
NO
Make sure PC setup
NO
YES
: RX
: TX
Use cross cable
PWB assembly MAIN
PWB assembly INPUT
The check after parts change
1. PC power supply OFF
2. Connection of cable
3. Projector starting
4. PC starting
*When not operating :
PC set up change of cable.
18
ED-X31E / ED-X33E (C14B-20)
6. Service points
6-1 Lead free solder [CAUTION]
This product uses lead free solder (unleaded) to help preserve the environment. Please read these
instructions before attempting any soldering work.
CAUTION
Always wear safety glasses to prevent fumes or molten solder from getting into the eyes. Lead free solder
can splatter at high temperatures (600˚C).
Lead free solder indicator
Printed circuit boards using lead free solder are engraved with an "F" or "LF".
Properties of lead free solder
The melting point of lead free solder is 40-50˚C higher than leaded solder.
Servicing solder
Solder with an alloy composition of Sn-3.0Ag-0.5Cu or Sn-0.7Cu is recommended.
Although servicing with leaded solder is possible, there are a few precautions that have to be taken. (Not
taking these precautions may cause the solder to not harden properly, and lead to consequent malfunctions.)
Precautions when using leaded solder
Remove all lead free solder from soldered joints when replacing components.
If leaded solder should be added to existing lead free joints, mix in the leaded solder thoroughly after the
lead free solder has been completely melted (do not apply the soldering iron without solder).
Servicing soldering iron
A soldering iron with a temperature setting capability (temperature control function) is recommended.
The melting point of lead free solder is higher than leaded solder. Use a soldering iron that maintains a high
stable temperature (large heat capacity), and that allows temperature adjustment according to the part being
serviced, to avoid poor servicing performance.
Recommended soldering iron:
Soldering iron with temperature control function (temperature range: 320-450˚C)
Recommended temperature range per part:
Part Soldering iron temperature
Mounting (chips) on mounted PCB 320˚C±30˚C
Mounting (chips) on empty PCB 380˚C±30˚C
Chassis, metallic shield, etc. 420˚C±30˚C
The PWB assembly which has used lead free solder
PWB assembly MAIN
PWB assembly REMOTE
PWB assembly INPUT
POWER UNIT (BALLAST)
POWER UNIT (CIRCUIT)
19
ED-X31E / ED-X33E (C14B-20)
6-2 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
assembly, or send the whole unit LCD/Lens prism assembly back to HITACHI, where we will replace the
malfunctioning part, recondition the device and send it back to you.
Do not disassemble the unit because replacement of separate parts is not possible.
HITACHI
Replacement of G PanelĺReconditioning
Return
DISTRIBUTOR
6-3 Cleaning up dust from panels and optical filters
WARNING
Wear sunglasses to protect your eyes when you maintain the projector with its lamp on.
1. Preparation
Please prepare cleaning tools and materials as follows. And prepare relatively clean room not to work in
additional dust, while removing operation.
(1) Swab for cleaning : P#: NX32451, "Cotton stick BB-014"
(2) Air duster (Dust blower, spray can)
(3) Vacuum cleaner
2. Disassemble and setting up.
(1) Turn off the projector, and unplug the power cord.
(2) Remove the lamp cover and upper case, according to the disassembling diagram of chapter 8.
20
ED-X31E / ED-X33E (C14B-20)
(3) Disconnect the LCD panel flexible cables and unscrew PWB assembly MAIN to make it free.
Remove these screws
Flexible cables of LCD panel
Flexible cables of LCD panel
WARNING
Never put the heavy stress to the main board.
Otherwise, connectors will be damaged.
(4) Press and hold the switch S801 using an insulator during maintenance.
(5) Keep the unscrewed wires away from all of electric parts.
21
3. Maintenance point
Actual formation
ED-X31E / ED-X33E (C14B-20)
Each color part has same construction.By using swab and air duster, you can
easily remove dust from panel and optical filter.
4. Cleaning the panels and optical filters
(1) Turn on the set and lit on the lamp.
(2) By using swab and air duster, remove the dust. Focusing dust makes you check the dust on screen.
• While removing the dust, separated dust will be blown
off by air cooling system.
• Please pay attention not to damage panels and optical
filters.
• Bend the top of SWAB a little if it is hard to insert the
SWAB.
Panel
Holder
Optical filter
5. Re-assembly
(1) Turn off the set and unplug the power cord.
(2) Remove an insulator from S801.
(3)
Screw down the PWB assembly MAIN and connect the LCD panel flexible cables to the PWB assembly MAIN.
(4) Re-assemble the set.
(5) While re-assembling, please clean the intake filter by using a vacuum cleaner.
22
ED-X31E / ED-X33E (C14B-20)
6-4 Putting batteries
WARNING
Always handle the batteries with care and use them only as directed. Improper use may result in battery
explosion, cracking or leakage, which could result in fire, injury and/or pollution of the surrounding environment.
• Be sure to use only the batteries specified. Do not use batteries of different types at the same time.
Do not mix a new battery with used one.
• Make sure the plus and minus terminals are correctly aligned when loading a battery.
• Keep a battery away from children and pets.
• Do not recharge, short circuit, solder or disassemble a battery.
• Do not allow a battery in a fire or water. Keep batteries in a dark, cool and dry place.
• If you observe a leakage of a battery, wipe out the flower and then replace a battery.
If the flower adheres your body or clothes, rinse well with water immediately.
• Use the batteries included in this product or two new batteries of the specified type: HITACHI MAXELL,
part number LR6 or R6P.
1. Remove the battery cover.
Slide back and remove the battery cover in the direction of the arrow.
2. Insert the batteries.
Align and insert the two AA batteries according to their plus and minus terminals as indicated in the
remote control.
3. Close the battery cover.
Replace the battery cover in the direction of the arrow and snap it back into place.
The signal settings for the remote control transmitter and the projector’s remote sensor can be changed.
If the remote control does not function properly try changing the signal setting.
Changing the signal setting for the remote control transmitter
(1) Setting 1 (FREQ. : NORMAL)
Simultaneously press and hold the VOLUME – and RESET buttons for about 3 seconds.
(2) Setting 2 (FREQ. : HIGH)
Simultaneously press and hold the MAGNIFY OFF and ESC buttons for about 3 seconds.
• Setting 1 is the factory default setting.
• When the batteries are removed from the remote control, user-specified settings are saved for about half a
day. If the batteries are removed from the remote control for longer than half a day, the remote will reset to
Setting 1.
Changing the signal setting for the projector’s remote sensor
Switch between Setting 1 and 2 using the SERVICE/REMOTE FREQ. item found in OPTION MENU.
Use the Ÿ/ź button to change the Projector's remote sensor setting.
1:NORMAL ļ 2:HIGH
Items with a checkmark are on. The factory default setting is for both 1:NORMAL and 2:HIGH to be on.
If the remote control does not function correctly set this to either only 1 or only 2. Neither can be turned off
at the same time.
NOTE: The remote control will not function properly if the remote control transmitter settings and the projec-
tor's remote sensor settings are not the same.
23
ED-X31E / ED-X33E (C14B-20)
6-5 Air filter
WARNING
• Before caring, make sure the power switch is off and the power cable is not plugged in, then allow the
projector to cool suffi ciently. The care in a high temperature state of the projector could cause an electric
shock, a burn and/or malfunction to the projector.
• Use only the air fi lter of the specifi ed type. Do not use the projector with the air fi lter and the fi lter cover
removed. It could result in a fi re and/or malfunction to the projector.
• The air fi lter should be cleaned periodically. If the air fi lter becomes clogged by dust or the like, internal
temperatures rise and could cause a fi re, a burn and/or malfunction to the projector.
NOTE
• Please replace the air fi lter when it is damaged or too soiled, and also when you replace the lamp.
• Please reset the fi lter time only when you have cleaned or replaced the air fi lter, for a suitable indication
about the air fi lter.
• The projector may display the message such as “CHECK THE AIR FLOW” or turn itself off, to prevent the
internal heat level rising.
If the air fi lter becomes clogged by dust or the like, internal temperatures rise and could cause a fi re, a burn
and/or malfunction to the projector. When the indicators or a message prompts to clean the air fi lter, clean
the air fi lter as soon as possible.
Please check and clean the air fi lter periodically, even if there is no message.Please replace the air fi lter
when it is damaged or too soiled.
And also when you replace the lamp, please replace the air filter. An air filter of specified type will come
together with a replacement lamp for this projector.
1. Turn the projector off, and unplug the power cord. Allow the lamp to cool
for at least 45 minutes.
2. When the projector is suspended from the ceiling, apply the vacuum cleaner
to and around the fi lter cover fi rst, to prevent penetration of dust or the like.
3. Pull the filter cover knobs while lifting it. The filter unit which consists of the
filter' cover, air fi lter and fi lter frame will come off.
4. Use a vacuum cleaner for the fi lter vent of the projector and the fi lter frame
side of the fi lter unit.
If the air fi lter is damaged or too soiled, replace it according to the following
procedure number 5 to 7.
Otherwise, please jump to the procedure number 8.
5. Pull the fi lter frame' knob up while holding the fi lter cover. The fi lter frame will
come off and the air fi lter will appear.
6. Replace the air filter with new one.
7. Put the filter frame back.
8. Put the filter unit back into the projector.
9. Turn the projector on and reset the fi lter time using the FILTER TIME item in
the EASY MENU.
(1) Press the MENU button to display a menu.
(2) Point at the “FILTER TIME” using the ź/Ÿ button, then press the Ź button.
A dialog will appear.
(3) Press the Ÿ button to select “RESET” on the dialog. It performs resetting
the fi lter time.
Filter cover
Filter cover knobs
Filter unit
Filter frame
Filter (fi ner meshed)
Filter (larger meshed)
Filter cover
24
6-6 Lamp
ED-X31E / ED-X33E (C14B-20)
WARNING
HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE
Ɣ
The projector uses a high-pressure mercury glass lamp. The lamp can break with a loud bang, or burn
out, if jolted or scratched, handled while hot, or worn over time. Note that each lamp has a different life-
time, and some may burst or burn out soon after you start using them. In addition, when the bulb bursts, it
is possible for shards of glass to fly into the lamp housing, and for gas containing mercury to escape
from the projector’s vent holes.
Ɣ
About disposal of a lamp • This product contains a mercury lamp; do not put it in the trash. Dispose of
in accord with environmental laws.
For lamp recycling, go to www.lamprecycle.org. (in the US) For product disposal, contact your local government agency or www.eiae.org (in the US) or www.epsc.ca (in Canada).
• If the lamp should break (it will make a loud bang when it does), unplug the power cord from
the outlet. Note that shards of glass could damage the projector’s internals, or cause injury
during handling.
Disconnect
the plug
from the
power
outlet
• If the lamp should break (it will make a loud bang when it does), ventilate the room well, and
make sure not to breathe the gas that comes out of the projector vents, or get it in your eyes
or mouth.
• Before replacing the lamp, turn the projector off and unplug the power cord, then wait at least
45 minutes for the lamp to cool suffi ciently. Handling the lamp while hot can cause burns, as
well as damaging the lamp.
• Never unscrew except the appointed (marked by an arrow) screws.
• Do not open the lamp cover while the projector is suspended from above. This is dangerous,
since if the lamp’s bulb has broken, the shards will fall out when the cover is opened.
• Do not use the projector with the lamp cover removed. At the lamp replacing, make sure that
the screws are screwed in fi rmly. Loose screws could result in damage or injury.
• Use only the lamp of the specifi ed type.
• If the lamp breaks soon after the fi rst time it is used, it is possible that there are electrical
problems elsewhere besides the lamp. If this happens, contact your local dealer or a service
representative.
• Handle with care: jolting or scratching could cause the lamp bulb to burst during use.
• Using the lamp for long periods of time could cause it dark, not to light up or to burst. When
the pictures appear dark, or when the color tone is poor, please replace the lamp as soon as
possible. Do not use old (used) lamps; this is a cause of breakage.
• Do not break up the lamp to replace because the structual parts broken up is unavailable.
25
ED-X31E / ED-X33E (C14B-20)
Replacing the Lamp
A lamp has a fi nite product life. Using the lamp for long periods of time could cause the pictures darker or
the color tone poor. Note that each lamp has a different lifetime, and some may burst or burn out soon after
being started using.
1. Turn the projector off, and unplug the power cord. Allow the projector to
cool for at least 45 minutes.
2. Prepare a new lamp.
3. Loosen the screw (marked by arrow) of the lamp cover and then slide the
lamp cover to the side to remove it.
4. Loosen the 2 screws (marked by arrow) of the lamp, and slowly pick up
the lamp by the handles.
5. Insert the new lamp, and retighten firmly the 2 screws of the lamp that are
loosened in the previous process to lock it in place.
6. Slide the lamp cover back in place and firmly fasten the screw of the lamp
cover.
7. Turn the projector on and reset the lamp time using the LAMP TIME
function in the OPTION menu.
(1) Press the MENU button to display a menu. Only when the EASY MENU
has appeared, please perform the next step (2).
(2) Point at the “Go to Advanced Menu …” in the menu using ź/Ÿ button,
then press the Ź button.
(3) Point at the “OPTION” in the left column of the menu using ź/Ÿ button,
then press the Ź button.
(4) Point at the ”LAMP TIME” using ź/Ÿ button, then press the Ź button. A
dialog will appear.
(5) Press the Ÿ button to select “RESET” on the dialog. It performs resetting
the lamp time.
The lamp cover
Handles
NOTE
• Please reset the lamp time only when you have replaced the lamp, for a suitable indication about the lamp.
26
ED-X31E / ED-X33E (C14B-20)
6-7 Other care
WARNING
Before caring, make sure the power switch is off and the power cable is not plugged in, and then allow the
projector to cool suffi ciently. The care in a high temperature state of the projector could cause a burn and/
or malfunction to the projector.
Avoid wetting the projector or inserting liquids in the projector. It could result in a fi re, an electric shock, and
and/or malfunction to the projector.
• Don’t put a container containing water , cleaner or chemicals near the projector.
• Don’t use aerosols or sprays.
CAUTION
Please take right care of the projector according to the following. Incorrect care could cause not only an
injury but adverse influence such as discoloration, peeling paint, etc.
• Do not use cleaner or chemicals other than those listed below.
• Do not polish or wipe with hard objects.
Inside of the projector
In order to ensure the safe use of the projector, it needs to clean and inspect the projector about once a year.
Caring for the lens
If the lens is flawed, soiled or fogged, it could cause deterioration of display quality. Please take care of the
lens, being cautions of the handling.
1. Turn the projector off, and unplug the power cord. Allow the projector to cool sufficiently.
2. After making sure that the projector is cool adequately, lightly wipe the lens with a commercially available
lens-cleaning wipe. Do not touch the lens directly with your hand.
Caring for the cabinet and remote control
Incorrect care could have adverse influence such as discoloration, peeling paint, etc.
1. Turn the projector off, and unplug the power cord. Allow the projector to cool sufficiently.
2. After making sure that the projector is cool adequately, lightly wipe with gauze or a soft cloth.
If soiling is severe, dip soft cloth in water or a neutral cleaner dilute in water, and wipe lightly after wringing
well. Then, wipe lightly with a soft, dry cloth.
27
ED-X31E / ED-X33E (C14B-20)
6-8 Notice of AUTO adjustment
Use of AUTO adjustment with the image through RGB input optimizes V_POSI, H_POSI, and H_PHASE
automatically.
In case that projected image has dark tone around its peripheral, AUTO operation sometimes makes artifacts
in the image, shifts capture area and so on. Those failures are caused by period of image data is not exactly
distinguished to period of blanking on signal processing.
To avoid such phenomena, AUTO function should be used with the full size picture that has bright tone on its
peripheral.
Image when AUTO operates correctly
Note
1)
The phenomenon at the failure of AUTO adjustment depends on resolution of input source, scene of picture
etc.
2) There is no failure above in AUTO with video source through VIDEO, S-VIDEO or COMPONENT input.
The reason is why recognition of input signal’s standard does not need to search the capture range from input
signal itself.
Image when AUTO fails.
Noting image of top or bottom lines.
Shift of the image to East or West.
Artifacts on image. Etc.
28
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