Hitachi Projector CP-DX250 User Manual

							10
Positioning your projector
Choosing a location
Your room layout or personal preference will dictate which installation location you select. 
Take into consideration the size and position of your screen, the location of a suitable power 
outlet, as well as the location and distance between the projector and the rest of your 
equipment.
Your projector is designed to be installed in one of following possible installation locations:
1. Normal
Select this location with the projector placed near 
the floor in front of the screen. This is the most 
common way to position the projector for quick 
setup and portability.
2. H Invert
Select this location with the projector placed near 
the floor behind the screen.
Note that a special rear projection screen is 
required.
Set H Invert in the SYSTEM SETTING: 
BASIC > Mirror menu after you turn the 
projector on. 
						

							11
Projection dimensions
Refer to Dimensions on page 50 for the center of lens dimensions of this projector before 
calculating the appropriate position.
The screen mentioned below refers to the projection screen usually consisting of a surface 
and a support structure
• There is 3% tolerance among these numbers due to optical component variations. It is 
recommended that if you intend to permanently install the projector, you should 
physically test the projection size and distance using the actual projector in situ before 
you permanently install it, so as to make allowance for this projectors optical 
characteristics. This will help you determine the exact mounting position so that it best 
suits your installation location.
• To obtain the clearest image possible, we suggest that you keep the desired distance 
within 1.5 to 6 m.
Desired
Distance 
(m)
< A >Minimum Screen Size (Min zoom)Maximum Screen Size (Max zoom)
Diagonal 
(inch)
< B >W (cm) x H (cm)
From base to 
top of image 
(cm)
< C >Diagonal 
(inch)
< B >W (cm) x H (cm)
From base to 
top of image 
(cm) 
< C >
1 24 49 x 37 40  26 54 x 40 44 
1.5 36 74 x 55 60  40 81 x 60 67 
2 48 98 x 74 80  53 108 x 81 89 
2.5 60 123 x 92 101  66 134 x 101 111 
3 72 147 x 110 121  79 161 x 121 132 
3.5 84 172 x 129 141  93 188 x 141 156 
4 96 196 x 147 161  106 215 x 161 178 
4.5 108 221 x 165 181  119 242 x 181 199 
5 120 245 x 184 201  132 269 x 202 221 
6 144 294 x 221 241  159 323 x 242 267 
7 168 343 x 257 282  185 376 x 282 310 
8 192 392 x 294 322  212 430 x 323 355 
9 216 441 x 331 362  238 484 x 363 399 
10 241 490 x 368 404  265 538 x 403 444 
11 265 539 x 404 444  291 591 x 444 488 
12 289 588 x 441 484  318 645 x 484 533 
Zoom Ratio: 1.1 x
AB
B
CC
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							12
Connection
When connecting a signal source to the projector, be sure to:
1. Turn all equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted. 
• In the connections shown below, some cables may not be included with the projector (see 
Shipping contents on page 5). They are commercially available from electronics stores.
• The connection illustrations below are for reference only. The rear connecting ports 
available on the projector vary with each projector model.
• For detailed connection methods, see pages 13-16.
HDMIAUDIO
OUT
RGB IN
RLRGB OUT
RLCOMPONENT
Cb/PbYCr/Pr
AUDIO
OUT
RL L R
LVIDEOS-VIDEO
AUDIO
OUT AUDIO
OUT
HDMI
Computer
MonitorSpeakers 
(with an amplifier)
VCR/DVD/Blu-ray Disc
TM player 
						

							13
Connecting a computer or monitor
Connecting a computer
The projector provides two VGA input sockets that allow you to connect them to both 
IBM® compatibles and Macintosh® computers. A Mac adapter is needed if you are 
connecting legacy version Macintosh computers.
To connect the projector to a notebook or desktop computer:
1. Take the supplied VGA cable and connect one end to the D-Sub output socket of the 
computer.
2. Connect the other end of the VGA cable to the COMPUTER IN1 or COMPUTER 
IN2 signal input socket on the projector.
Many notebooks do not turn on their external video ports when connected to a projector. 
Usually a key combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a 
function key labeled CRT/LCD or a function key with a monitor symbol on the notebook. Press 
FN and the labeled function key simultaneously. Refer to your notebooks documentation to 
find your notebooks key combination.
Connecting a monitor
If you want to view your presentation close-up on a monitor as well as on the screen, you 
can connect the MONITOR OUT signal output socket on the projector to an external 
monitor with a VGA cable following the instructions below:
To connect the projector to a monitor:
1. Connect the projector to a computer as described in Connecting a computer on page 
13.
2. Take a suitable VGA cable (only one supplied) and connect one end of the cable to the 
D-Sub input socket of the video monitor. 
Or if your monitor is equipped with a DVI input socket, take a VGA to DVI-A cable 
and connect the DVI end of the cable to the DVI input socket of the video monitor.
3. Connect the other end of the cable to the MONITOR OUT socket on the projector.
The MONITOR OUT output only works when COMPUTER IN1 connection is made to the 
projector. 
						

							14
Connecting Video source devices
You can connect your projector to various Video source devices that provide any one of the 
following output sockets:
• HDMI
• Component Video
•S-Video
• Video (composite)
You need only connect the projector to a Video source device using just one of the above 
connecting methods, however each provides a different level of video quality. The method 
you choose will most likely depend upon the availability of matching terminals on both the 
projector and the Video source device as described below:
Best video quality
The best available video connection method is HDMI. If your source device is equipped 
with a HDMI socket, you can enjoy uncompressed digital video quality.
See Connecting an HDMI device on page 15 for how to connect the projector to a HDMI 
source device and other details.
If no HDMI source is available, the next best video signal is Component video (not to be 
confused with composite video). Digital TV tuner and DVD players output Component 
video natively, so if available on your devices, this should be your connection method of 
choice in preference to (composite) video.
See Connecting a Component Video source device on page 15 for how to connect the 
projector to a component video device.
Better video quality
The S-Video method provides a better quality analog video than standard composite Video. 
If you have both composite Video and S-Video output terminals on your Video source 
device, you should elect to use the S-Video option.
See Connecting an S-Video source device on page 16 for how to connect the projector to 
an S-Video device.
Least video quality
Composite Video is an analog video and will result in a perfectly acceptable, but less than 
optimal result from your projector, being the least video quality of the available methods 
described here.
See Connecting a composite Video source device on page 16 for how to connect the 
projector to a composite Video device.
Connecting audio
The projector has one built-in mono speaker which is designed to provide basic audio 
functionality accompanying data presentations for business purposes only. It is not designed 
for, nor intended for stereo audio reproduction use as might be expected in home theater or 
home cinema applications. Any stereo audio input (if provided), is mixed into a common 
mono audio output through the projector speaker.
If you wish, you can make use of the projector (mixed mono) speaker in your presentations, 
and also connect separate amplified speakers to the Audio Out socket of the projector. The 
audio output is a mixed mono signal and controlled by the projector Volume and Mute 
settings. 
						

							15
If you have a separate sound system, you will most likely want to connect the audio output 
of your Video source device to that sound system, instead of to the mono audio projector.
• The audio output only works when a signal source is connected to the projector.
• When an audio cable is connected to the AUDIO OUT port, the projector’s speaker will be 
muted. 
Connecting an HDMI device
You should use an HDMI cable when making connection between the projector and HDMI 
devices.
To connect the projector to an HDMI device:
1. Take an HDMI cable and connect one end to the HDMI output port of the video 
device.
2. Connect the other end of the cable to the HDMI input port on the projector. 
The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 14 for details.
Connecting a Component Video source device
Examine your Video source device to determine if it has a set of unused Component Video 
output sockets available:
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to a Component Video source device:
1. Take a VGA (D-Sub)-Component adaptor cable and connect the end with 3 RCA type 
connectors to the Component Video output sockets of the Video source device. Match 
the color of the plugs to the color of the sockets; green to green, blue to blue, and red 
to red.
2. Connect the other end of the VGA (D-Sub)-Component adaptor cable (with a D-Sub 
type connector) to the COMPUTER IN1 or COMPUTER IN2 socket on the 
projector.
• The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 14 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly. 
						

							16
Connecting an S-Video source device
Examine your Video source device to determine if it has an unused S-Video output socket 
available: 
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to an S-Video source device:
1. Take an S-Video cable and connect one end to the S-Video output socket of the Video 
source device.
2. Connect the other end of the S-Video cable to the S-VIDEO socket on the projector.
• The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 14 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
• If you have already made a Component Video connection between the projector and this 
S-Video source device using Component Video connections, you need not connect to this 
device using an S-Video connection as this makes an unnecessary second connection of 
poorer picture quality. See Connecting Video source devices on page 14 for details.
Connecting a composite Video source device
Examine your Video source device to determine if it has a set of unused composite Video 
output sockets available:
• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.
To connect the projector to a composite Video source device:
1. Take a Video cable and connect one end to the composite Video output socket of the 
Video source device.
2. Connect the other end of the Video cable to the VIDEO socket on the projector.
• The projector is only capable of playing mixed mono audio, even if a stereo audio input is 
connected. See Connecting audio on page 14 for details.
• If the selected video image is not displayed after the projector is turned on and the correct 
video source has been selected, check that the Video source device is turned on and 
operating correctly. Also check that the signal cables have been connected correctly.
• You need only connect to this device using a composite Video connection if Component 
Video and S-Video inputs are unavailable for use. See Connecting Video source devices 
on page 14 for details. 
						

							17
Operation
Starting up the projector
1. Plug the power cord into the projector and into a 
wall socket. Turn on the wall socket switch 
(where fitted).
2. Press   on the projector or remote control to 
start the projector. The POWER indicator light 
stays blue when the projector is on.
(If necessary) Rotate the focus ring to adjust the 
image clearness.
• If the projector is still hot from previous activity, it 
will run the cooling fan for approximately 60 
seconds before energizing the lamp. 
• To maintain the lamp life, once you turn the 
projector on, wait at least 5 minutes before turning it 
off.
• Also, do not turn the projector on for about 10 
minutes or more after turning off.
3. If the projector is activated for the first time, 
select your OSD language and High Altitude 
Mode following the on-screen instructions.
Language
See Using the menus on page 18 for details.
High Altitude Mode
See Operating in a high altitude environment on page 31 for details.
4. Switch all of the connected equipment on.
5. The projector will start to search for input signals. The current input signal being 
scanned appears in the upper left corner of the screen. If the projector doesnt detect a 
valid signal, the message No Signal will continue to be displayed until an input 
signal is found.
You can also press SOURCE on the projector or remote control to select your desired 
input signal. See Switching input signal on page 21 for details.
• If the frequency/resolution of the input signal exceeds the projectors operating range, you 
will see the message Out of Range displayed on a blank screen. Please change to an 
input signal which is compatible with the projectors resolution or set the input signal to a 
lower setting. See Timing chart on page 51 for details.
• OSD languages and user manual languages may not match.
II 
						

							18
Using the menus
The projector is equipped with On-Screen Display (OSD) menus for making various 
adjustments and settings.
The OSD screenshots below are for reference only, and may differ from the actual design.
Below is the overview of the OSD menu.
To use the OSD menus, please set them to your familiar language first.
1. Press  MENU on the projector or 
MENU/EXIT  on the remote control 
to turn the OSD menu on. 3. Press  to highlight 
Language 
and press  MODE/ENTER.
2. Use  /  to highlight the  SYSTEM 
SETTING: Basic  menu. 4. Press  / / /   to select a 
preferred language.
5. Press  MENU on the projector or 
MENU/EXIT  on the remote 
contrl to leave and save the 
settings.
:  DISPLAY
:  PICTURE
:  SOURCE : 
SYSTEM SETTING: Basic
:  SYSTEM SETTING: Advanced
:  INFORMATION
Current input 
signal
Main menu icon
Sub-menu
Highlight
Go to the 
previous page 
or to exit.
Sta t us
Wall Color
3D Sync Invert 3D Sync
Digital Zoom H. Size
Phase
Position KeystoneAspect Ratio
Analog RGB Off
Auto
Disable
15
15
MENUExit
Wall Color
3D Sync Invert 3D SyncDigital Zoom H. Size PhasePosition
Keystone Aspect Ratio
Analog RGB Off
Auto
Disable
15
15
MENUExitPresentation Timer
Background Color Sleep Timer Panel Key Lock Blank Timer
Auto Power Off Mirror Language
Analog RGB Original
Disable
Normal
30 min
Disable
Off
MENU ExitENTER
Presentation Timer
Background Color Sleep Timer Panel Key Lock Blank Timer
Auto Power Off Mirror Language
Analog RGB English
Original Disable
Normal
30 min
Disable
Off
MENU Exit 
						

							19
Utilizing the password function
For security purposes and to help prevent unauthorized use, the projector includes an option 
for setting up password security. The password can be set through the On-Screen Display 
(OSD) menu. For details of the OSD menu operation, please refer to Using the menus on 
page 18.
You will be inconvenienced if you activate the password functionality and subsequently forget 
the password. Print this user manual (if necessary) and write the password you used in this 
manual, and keep it in a safe place for later use.
Setting a password
1. Open the OSD menu and go to the SYSTEM SETTING: Advanced > Security 
Settings menu. Press MODE/ENTER on the projector or remote control. The 
Security Settings page is displayed.
2. Highlight Change Password and press MODE/ENTER.
3. As pictured to the right, the four arrow keys 
( , , , ) respectively represent 4 digits (1, 
2, 3, 4). According to the password you desire to 
set, press the arrow keys to enter six digits for the 
password.
4. Confirm the new password by re-entering the 
new password.
Once the password is set, the OSD menu returns to the Security Settings page.
5. To activate the Power on Lock function, press  /  to highlight Power on Lock and 
press  /  to select On. When the Power on Lock function is activated, you have to 
enter the correct password to turn on the projector.
6. To leave the OSD menu, press MENU on the projector or MENU/EXIT on the 
remote control.
• Once a password has been set, the projector cannot be used unless the correct password 
is entered every time the projector is started.
• The digits being input will be displayed as asterisks on-screen. Write your selected 
password down here in this user manual in advance or right after the password is entered 
so that it is available to you should you ever forget it.
Password: __ __ __ __ __ __
Keep this user manual in a safe place.
If you forget the password
If the password function is activated, you will be asked 
to enter the six-digit password every time you turn on 
the projector. If you enter the wrong password, the 
password error message as pictured to the right is 
displayed lasting for three seconds, and the message 
INPUT PASSWORD follows. You can retry by 
entering another six-digit password, or if you did not 
record the password in this user manual, and you absolutely do not remember it, you can use 
the password recall procedure. See Entering the password recall procedure on page 20 for 
details.
If you enter an incorrect password 5 times in succession, the projector will automatically 
shut down in a short time.
INPUT NEW PASSWORD
Back MENU
*
Password Error
Please try again.