Hitachi Cp-Rx78 Users Manual

							NOTE
						

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ENGLISH
Projector
CP-RX78
User's Manual (concise)
Thank you for purchasing this projector.
Please read through this manual before using this product, in order to use safely 
and utilize well the product.
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product. See “Using the CD manual” (
	15) to read the manuals in the CD. 
After reading them, store them in a safe place for future reference.
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)LUVWRIDOO............................................ 2
  Entries and graphical symbols explanation ...... 2
  Important safety instruction .............................. 2
Regulatory notices .............................. 3
  About Electro-Magnetic Interference ................3
 About Waste Electrical and Electronic Equipment... 4
Contents of package........................... 4
Preparations ....................................... 5
  Loading batteries into the remote control ......... 5
Arrangement ....................................... 6
Connecting your devices .................... 7
	
Connecting power supply ................... 8
Turning on the power.......................... 8
Adjusting the projector's elevator ....... 9
Displaying the picture ....................... 10
Turning off the power ........................ 11
Replacing the lamp ........................... 12
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Using the CD manual ....................... 15
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Troubleshooting 
  - Warranty and after-service ........... 17
Contents
NOTE
manuals” means all the documents provided with this product, and “the product” 
means this projector and all the accessories came with the projector. 
						

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First of  all
Entries and graphical symbols explanation
The following entries and graphical symbols are used for the manuals and the 
product as follows, for safety purpose. Please know their meanings beforehand, 
and heed them.
Important safety instruction
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follow them always when handling the product. The manufacturer assumes no 
responsibility for any damage caused by mishandling that is beyond normal usage 
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ENGLISH
Regulator y notices
About Electro-Magnetic Interference
In European Union
This is a Class A product in European Union.
WARNING : 
This is a Class A product. In a domestic environment this product 
may cause radio interference in which case the user may be required to take 
adequate measures.
In CANADA

In the US, and other places where the FCC regulations are applicable
Declaration of Conformity
Trade name HITACHI
Model Number   CP-RX78
Responsible Party Hitachi America, Ltd.
Address 900 Hitachi way, Chula Vista, CA 91914-3556  U.S.A.
Telephone Number +1 -800-225-1741
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following two conditions: (1) This device may not cause harmful interference, and (2) 
this device must accept any interference received, including interference that may 
cause undesired operation.This equipment has been tested and found to comply 
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These limits are designed to provide reasonable protection against harmful 
interference in a residential installation. This equipment generates, uses, and can 
radiate radio frequency energy and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio communications. However, 
there is no guarantee that interference will not occur in a particular installation. If this 
equipment does cause harmful interference to radio or television reception, which 
can be determined by turning the equipment off and on, the user is encouraged to 
try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the 
receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
INSTRUCTIONS TO USERS: This equipment complies with the requirements of 
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conditions are met. Some cables have to be used with the core set. Use the 
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have a core only at one end, connect the core to the projector.
CAUTION:
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compliance could void the user’s authority to operate the equipment. 
						

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Contents of  package
Your projector should come with the items 
shown below. Check that all the items are 
included. Require of your dealer immediately if 
any items are missing.
(1) Remote control with two AA batteries 
(2) Power cord 
(3) Computer cable
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ENGLISH
Preparations
Loading batteries into the remote control
Please insert the batteries into the remote control before using it. If the remote 
control starts to malfunction, try to replace the batteries. If you will not use the 
remote control for long period, remove the batteries from the remote control and 
store them in a safe place.
1.Holding the hook part of the battery 
cover, remove it.
2.Align and insert the two AA batteries 
(
HITACHI MAXELL, Part No.LR6 or R6P)
according to their plus and minus terminals 
as indicated in the remote control.
3.Replace the battery cover in the direction of the arrow and snap it back into 
place.
WARNING
yAlways handle the batteries with care and use them only as 
directed. Improper use may result in battery explosion, cracking or leakage, 
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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.
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‡
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On a horizontal surface Suspended from the ceiling

the projector and other objects such as walls. Do not 
place or attach anything that would block the lens or 
vent holes.


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the projector, consult your dealer about your installation.
WARNING

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and removing the projector with the mounting accessories to the service personnel.
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CAUTION
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Position the projector to prevent light from directly hitting the projector’s remote sensor.
Screen size
(diagonal)4 : 3 screen 16 : 9 screen
Projection distance 
Screen
heightScreen
heightProjection distance 
Screen
heightScreen
height
min. max. min. max.
type
(inch)m m inch m inch cm inch cm inch m inch m inch cm inch cm inch
30 0.80.8 33 1.0 40 38 15 8 3 0.9 36 1.1 44 35 14 2 1
40 1.0 1.1 45 1.4 54 51 20 10 4 1.2 49 1.5 59 47 19 3 1
50 1.3 1.4 56 1.7 68 64 25 13 5 1.6 62 1.9 74 59 23 3 1
60 1.5 1.7 68 2.1 82 76 30 15 6 1.9 74 2.3 89 71 28 4 2
70 1.8 2.0 80 2.4 96 89 35 18 7 2.2 87 2.7 104 82 32 5 2
80 2.0 2.3 91 2.8 110 102 40 20 8 2.5 99 3.0 119 94 37 6 2
90 2.3 2.6 103 3.1 123 114 45 23 9 2.8 112 3.4 135 106 42 6 2
100 2.5 2.9 114 3.5 137 127 50 25 10 3.2 124 3.8 150 118 46 7 3
120 3.0 3.5 137 4.2 165 152 60 30 12 3.8 150 4.6 180 141 56 8 3
150 3.8 4.4 172 5.2 207 191 75 38 15 4.8 187 5.7 225 176 69 10 4
200 5.1 5.8 230 7.0 276 254 100 51 20 6.4 250 7.6 301 235 93 14 5
250 6.4 7.3 287 8.8 345 318 125 64 25 8.0 313 9.6 376 294 116 17 7
300 7.6 8.8 345 10.5 414 381 150 76 30 9.5 376 11.5 452 353 139 21 8
babc1c1c2c2
Arrangement
Refer to the illustrations and tables below to determine screen size and projection distance.
The values shown in the table are calculated for a full size screen: 1024 x 768
a  Screen size (diagonal)b  Projection distance (±10%)
c1 , c2  Screen height (±10%) 
						

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ENGLISH
VIDEO OUTRGB OUTCOMPONENT VIDEO OUT
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Connecting your devices
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Make sure that all the devices are suitable to be connected with this product, and 
prepare the cables required to connect. Please refer to the following illustrations 
to connect them. To input component video signal to the projector, an RCA 
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VCR/DVD playerPC
WARNING
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CAUTION
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connecting them to projector. Connecting a live device to the projector may 
generate extremely loud noises or other abnormalities that may result in 
malfunction or damage to the device and the projector.

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the core to the projector.
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connection may result in malfunction or damage to the device and the projector.
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ports of the projector are recessed. 
						

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VIDEODOC.CAMERA
KEYSTONE
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MUTE
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Connecting power supply
1.Put the connector of the power cord into the 
AC IN (AC inlet) of the projector.
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ENGLISH
Adjusting the projector's elevator
When the place to put the projector is slightly uneven to 
the left or right, use the elevator feet to place the projector 
horizontally. 
Using the feet can also tilt the projector in order to project at a suitable angle to 
the screen, elevating the front side of the projector within 14 degrees.
This projector has 2 elevator feet and 2 elevator buttons. An elevator foot is 
adjustable while pushing the elevator button on the same side as it.
1.Holding the projector, push the elevator buttons to loose the elevator feet.
2.Position the front side of the projector to the desired height.
3.Release the elevator buttons in order to lock the elevator feet.
4.After making sure that the elevator feet are locked, put the projector down 
gently.
5.If necessary, the elevator feet can be manually twisted to make more precise 
adjustments. Hold the projector when twisting the feet.
To loose an elevator foot, push the 
elevator button on the same side as it.
CAUTION
projector, since the projector may drop down.
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the adjuster feet. A tilt of the projector exceeding the restriction could cause 
malfunction or shortening the lifetime of consumables, or the projector itself.
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