Hitachi Cp-Rx78 Users Manual

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Displaying the picture
1.Activate your signal source. Turn the signal 
source on, and make it send the signal to 
the projector.
2.Press the INPUT button on the projector. 
Each time you press the button, the 
projector switches its input port in turn.
You can also use the remote control to select 
an input signal. Press the VIDEO button for 
selecting an input signal from the VIDEO
port, or the COMPUTER button for selecting 
an input signal from the COMPUTER IN port.
3.Press the ASPECT button on the remote 
control. Each time you press the button, 
the projector switches the mode for aspect 
ratio in turn.
4.Use the zoom ring to adjust the screen 
size.
5.Use the focus ring to focus the picture.
INPUT button
VIDEO button
COMPUTER button
ASPECT button
NOTE‡TheASPECT button does not work when no proper signal is inputted.
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in the CD.
Zoom ring
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VIDEODOC.CAMERA
KEYSTONE
ASPECT SEARCH
BLANK
MUTE
MY BUTTON
POSITION
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CAUTIONS
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other method of blocking the projection light, such as attaching something to 
the lens or placing something in front of the lens, may cause the damage to the 
projector. 
						

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ENGLISH
Turning off  the power
1.Press the STANDBY/ON button on the 
projector or the remote control.
The message “Power off?” will appear on 
the screen for about 5 seconds.
2.Press the STANDBY/ON button again 
while the message appears.
The projector lamp will go off, and the 
POWER indicator will begin blinking in 
orange. Then the POWER indicator will 
stop blinking and light in steady orange 
when the lamp cooling is complete.
Do not turn the projector on for about 10 minutes or more after turning it off. 
Turning the projector on again too soon could shorten the lifetime of some 
consumable parts of the projector.
WARNING
during use or just after use, since it is too hot.

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close to the projector and easily accessible.
NOTE‡Please power off the projector after any connected devices are 
powered off.

						

							12
Replacing the lamp
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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 you start using them.
Preparation of a new lamp and early replacement are recommended. To prepare 
a new lamp, make contact with your dealer and tell the lamp type number.
Type number : DT01022
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. If the projector is mounted on 
a ceiling, or if the lamp has broken, also ask the 
dealer to replace the lamp.
In case of replacement by yourself, follow the following 
procedure.
3.Loosen the screw (marked by arrow) of the lamp 
cover and then slide and lift the lamp cover to the 
side to remove it.
4.Loosen the 3 screws (marked by arrow) of the 
lamp, and slowly pick up the lamp by the handles.
Never loosen any other screws.
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3 screws of the lamp that are loosened in the 
previous process to lock it in place.
6.While putting the interlocking parts of the lamp 
cover and the projector together, slide the lamp 
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							13
ENGLISH
 HIGH VOLTAGE HIGH TEMPERATURE HIGH PRESSURE
WARNING
yThe 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 lifetime, and some may burst or 
burn out soon after you start using them. In addition, if the bulb bursts, it is possible 
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							14
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							15
ENGLISH
Using the CD manual
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							16
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							17
ENGLISH
Troubleshooting - Warranty and after-ser vice
If an abnormal operation (such as smoke, strange odor or excessive sound) 
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							1
Projector
CP-RX78
User's Manual (detailed)
Operating Guide – Technical
Resolution (H x V) H. frequency (kHz) V. frequency (Hz) Rating Signal mode
720 x 40037.9 85.0 VESA TEXT
640 x 480 31.5 59.9 VESA VGA (60Hz)
640 x 480 37.9 72.8 VESA VGA (72Hz)
640 x 480 37.5 75.0 VESA VGA (75Hz)
640 x 480 43.3 85.0 VESA VGA (85Hz)
800 x 600 35.2 56.3 VESA SVGA (56Hz)
800 x 600 37.9 60.3 VESA SVGA (60Hz)
800 x 600 48.1 72.2 VESA SVGA (72Hz)
800 x 600 46.9 75.0 VESA SVGA (75Hz)
800 x 600 53.7 85.1 VESA SVGA (85Hz)
832 x 624 49.7 74.5 Mac 16” mode
1024 x 768 48.4 60.0 VESA XGA (60Hz)
1024 x 768 56.5 70.1 VESA XGA (70Hz)
1024 x 768 60.0 75.0 VESA XGA (75Hz)
1024 x 768 68.7 85.0 VESA XGA (85Hz)
1152 x 864 67.5 75.0 VESA
1152 x 864 (75Hz)
1280 x 768 47.7 60.0 VESA W-XGA (60Hz)
1280 x 800 49.7 60.0 VESA
1280 x 800 (60Hz)
1280 x 960 60.0 60.0 VESA1280 x 960 (60Hz)
1280 x 1024 64.0 60.0 VESA SXGA (60Hz)
1280 x 1024 80.0 75.0 VESA SXGA (75Hz)
1280 x 1024 91.1 85.0 VESA SXGA (85Hz)
1400 x 1050 65.2 60.0 VESA SXGA+ (60Hz)
1600 x 1200 75.0 60.0 VESA UXGA (60Hz)
NOTE
						

							2
Initial set signals
Initial set signals
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Resolution
(H x V)+RUL]RQWDOVLJQDOWLPLQJVVertical signal timing (lines)
Signal mode
(A)% & (a) (b) (c) (d)
720 x 4002.0 3.0 20.3 1.0 3 42 400 1 TEXT
640 x 480 3.8 1.9 25.4 0.6 2 33 480 10 VGA (60Hz)
640 x 480 1.3 4.1 20.3 0.8 3 28 480 9 VGA (72Hz)
640 x 480 2.0 3.8 20.3 0.5 3 16 480 1 VGA (75Hz)
640 x 480 1.6 2.2 17.8 1.6 3 25 480 1 VGA (85Hz)
800 x 600 2.0 3.6 22.2 0.7 2 22 600 1 SVGA (56Hz)
800 x 600 3.2 2.2 20.0 1.0 4 23 600 1 SVGA (60Hz)
800 x 600 2.4 1.3 16.0 1.1 6 23 600 37 SVGA (72Hz)
800 x 600 1.6 3.2 16.2 0.3 3 21 600 1 SVGA (75Hz)
800 x 600 1.1 2.7 14.2 0.6 3 27 600 1 SVGA (85Hz)
832 x 624 1.1 3.9 14.5 0.6 3 39 624 1 Mac 16" mode
1024 x 768 2.1 2.5 15.8 0.4 6 29 768 3 XGA (60Hz)
1024 x 768 1.8 1.9 13.7 0.3 6 29 768 3 XGA (70Hz)
1024 x 768 1.2 2.2 13.0 0.2 3 28 768 1 XGA (75Hz)
1024 x 768 1.0 2.2 10.8 0.5 3 36 768 1 XGA (85Hz)
1152 x 864 1.2 2.4 10.7 0.6 3 32 864 1 1152 x 864 (75Hz)
1280 x 768 1.7 2.5 16.0 0.8 3 23 768 1 W-XGA (60Hz)
1280 x 800 1.6 2.4 15.3 0.8 3 24 800 1 W-XGA (60Hz)
1280 x 960 1.0 2.9 11.9 0.9 3 36 960 1 W-XGA (60Hz)
1280 x 1024 1.0 2.3 11.9 0.4 3 38 1024 1 SXGA (60Hz)
1280 x 1024 1.1 1.8 9.5 0.1 3 38 1024 1 SXGA (75Hz)
1280 x 1024 1.0 1.4 8.1 0.4 3 44 1024 1 SXGA (85Hz)
1400 x 1050 1.2 2.0 11.4 0.7 3 33 1050 1 SXGA+ (60Hz)
1600 x 1200 1.2 1.9 9.9 0.4 3 46 1200 1 UXGA (60Hz)Back porch (B)  Front porch (D)  Back porch (b)  Front porch (d)
Active video (C)Data Data
H. Sync.  V. Sync.
Sync (A)   Sync (a)Active video (c)