HITACHI DIGITAL MEDIA, Hitachi Europe Ltd, Whitebrook Park, Lower Cookham Road, Maidenhead, Berkshire SL6 8YA UNITED KINGDOM 
Tel: +44 (0)1628 585 000  Fax: +44 (0)1628 585 500  www.hitachidigitalmedia.com
*The stated lamp life refers to the average life expected in ideal operating conditions with usage in accordance with the manual. The majority of, but not all lamps should achieve this figure. 
** A free replacement lamp will be issued if the original lamp is less than 6 months old and it has been used for less than the hours stated on the warranty. 
The specification above and photography is for reference only and may be subject to change.
CP-RX78 Technical specifications
30" (0.8) 0.9 1.1 35 2 
40" (1.0) 1.2 1.5 47 3 
50" (1.3) 1.6 1.9 59 3
60" (1.5) 1.9 2.3 71 4 
100" (2.5) 3.2 3.8 118 7 
150" (3.8) 4.8 5.7 176 10 
200" (5.1) 6.4 7.6 235 14 
250" (6.4) 8.0 9.6 294 17 
300" (7.6) 9.5 11.5 353 21
Screen Size
(Diagonal)
min. (m)
b (top)
c (bottom)
a: Projection Distance 
b: Lens centre to the higher edge of the screen 
c: Lens centre to the lower edge of the screen
a
b
(Top)
c
(Bottom)
Image Size 16:9
Projection Distance (a)
max. (m)
Screen Height (cm)
30" (0.8) 0.8 1.0 38 8 
40" (1.0)  1.1 1.4 51 10 
50" (1.3) 1.4 1.7 64 13
60" (1.5) 1.7 2.1 76 15 
100" (2.5) 2.9 3.5 127 25 
150" (3.8) 4.4 5.2 191 38 
200" (5.1) 5.8 7.0 254 51 
250" (6.4) 7.3 8.8 318 64 
300" (7.6) 8.8 10.5 381 76
Screen Size
(Diagonal)
min. (m)
b (top)
c (bottom)
Image Size 4:3
Projection Distance (a)
max. (m)
Screen Height (cm)
317
Unit: mm
288
OPTICAL
LCD Panel 0.63" P-Si TFT x 3 
Resolution XGA 
Brightness Normal Mode 2200 ANSI Lumens
Eco Mode   1600 ANSI Lumens 
Contrast ratio 400:1 
Lens f=19~22mm, manual focus, manual zoom x 1.2 
Lamp 190W UHB 
Lamp life 3000 hours (Normal Mode)/6000 hours (Eco Mode)* 
Focus distance 0.8~8.8m (Wide), 1.0~10.5m (Tele) 
Distance to width ratio (:1) 1.4 (Wide), 1.7 (Tele) 
Diagonal display size 30~300" (60"@1.7m, Wide) 
Number of colours  8 Bit/colour, 16.7M colours 
Keystone  5:1 upward shift, fixed
COMPATIBILITY
Computer compatibility IBM Compatible VGA, SVGA, XGA, WXGA, SXGA, SXGA+,
UXGA Compressed, MAC 16" 
Plug & Play DDC2B 
Video compatibility NTSC/PAL/SECAM/PAL-M/PAL-N/NTSC4.43/PAL60
SDTV: 480i, 480p, 576i, 576p
HDTV: 720p (@50/60Hz), 1080i (@50/60Hz), 1080p (@50/60Hz)
FEATURES
Basic functions  Freeze, Magnify, Blank, Aspect selection (Video: 4:3/16:9/14:9, 
Data: Normal/4:3/16:9/16:10, Normal mode keeps the 
original aspect ratio of the signal), mirror reverse image, 
upside down image 
Picture adjustments Equalizing Gamma Correction, Equalizing Colour Temperature 
Adjustment, Picture Mode (Normal, Cinema, Dynamic, 
Blackboard/Greenboard/Whiteboard, Daytime), Progressive Scan
(Video, Component video for 535i(480i), 635i(576i)), Overscan 
(Video, Component video signal), 2-3 Pull Down (for NTSC), 
Noise Reduction 
Digital Keystone Auto Vertical Keystone ±30degrees (@XGA 60Hz) 
Advanced Features Template, MyScreen, My Memory, My Button, My Text, 
My Source, Overscan (Video, S-Video, Component signal), 
Resolution Preset and Custom Modes, Frame Lock (Data signal 
with vertical frequency of 50 to 60Hz), Input Source Naming, 
filter timer (selectable interval time to show a message for 
filter clean up) 
Outward Easy lamp replace from top, air filter slides from bottom to front 
Power on & off Direct on, auto off 
Security systems Security bar, PIN-Lock, MyScreen PIN-Lock, Transition Detector, 
My Text Lock, Keypad Lock 
OSD Languages English, French, German, Spanish, Italian, Norwegian, Dutch, 
Japanese, Portuguese, Simplified Chinese, Traditional Chinese, 
Korean, Swedish, Russian, Finnish, Polish, Turkey, Arabic, Persian,
Czech, Danish, Hungarian, Romanian, Slovenian, Croatian, 
Greek, Lithuanian, Estonian, Latvian, Thai, Portuguese (Brazil)
CONNECTIONS
Computer input 1 x 15-pin Mini D-sub 
Video input 1 x RCA Jack (for composite)
POWER
Power supply 100-120V/220-240V, auto switching 
Power Consumption/Standby 250W/<5W
PHYSICAL
Dimensions (W x H x D) 317 x 98 x 288mm (excluding feet and extrusions) 
Weight 3.2Kg 
Noise level 29dB (Whisper Mode)/36dB (Normal Mode) 
Air filter  Urethane 
Filter cleaning cycle 1000 Hrs (Normal Mode)
MISCELLANEOUS
Lamp indicator light, Power light, Ceiling mount image, Rear projection image
CERTIFICATION
EN60950-1 (Low voltage directive) EN61000-3-2, EN61000-3-3, EN55022, EN55024 (EMC directive)
ACCESSORIES SUPPLIED
Remote control with batteries, Computer cable, Power cord, User manual (detail & concise)
OPTIONAL ACCESSORIES
Replacement lamp DT01022
WARRANTY
Projector warranty 3 Years 
Lamp warranty 6 Months/6000hours**
98
09/09