Hitachi Cp D31n Technical Manual

1
Projector
CP-D31N
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...

2
Initial set signals
Initial set signals
The following signals are used for the initial settings. The signal timing of some 
PC models may be different. In such case, adjust the items V POSITION and H 
POSITION in IMAGE menu. 
 
Computer signalHorizontal signal timing (μs) Vertical signal timing (lines)
(A) (B) (C) (D) (a) (b) (c) (d)
720 x 400 / TEXT 2.0 3.0 20.3 1.0 3 42 400 1
640 x 480 / VGA (60Hz) 3.8 1.9 25.4 0.6 2 33 480 10
640 x 480 / VGA (72Hz) 1.3 4.1 20.3 0.8 3 28 480 9
640 x 480 / VGA (75Hz)...

3
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR OUT
D-sub 15pin mini shrink jack
(1) for PC signal
•  Video signal: RGB separate, Analog, 0.7Vp-p, 75Ω terminated (positive)
• H/V. sync. Signal: TTL level (positive/negative)
• Composite sync. Signal: TTL level
Pin Signal Pin Signal
1
Video Red 10 Ground
2 Video Green 11 (No connection)
3 Video Blue
12
A: SDA (DDC data)B, C: (No connection)4 (No connection)
5 Ground 13 H. sync / Composite sync.
6 Ground Red 14 V. sync.
7 Ground Green
15
A: SCL (DDC clock)B, C:...

4
Connection to the ports (continued)
To input component video signal to COMPUTER IN ports
  ex.
To input component video signal to the COMPUTER IN1 or IN2 port of the 
projector, use a RCA to D-sub cable or adapter. 
For about the pin description of the required cable or adapter, refer to the 
descriptions about COMPUTER IN1 and IN2 port (
3).
LAN
HDMI
       Y       CB/PB     CR/PRCOMPONENT VIDEO OUT
VCR/DVD/Blu-ray 
Disc player
RCA connectors
RCA plugs D-sub plug   

5
DS-VIDEO
Mini DIN 4pin jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL (60Hz)
Pin Signal
1Color signal 0.286Vp-p (NTSC, burst), 75Ω terminator
Color signal 0.300Vp-p (PAL/SECAM, burst) 75Ω terminator
2 Brightness signal, 1.0Vp-p, 75Ω terminator
3 Ground
4 Ground
LAN
HDMI
Connection to the ports (continued)
4
3
21
EVIDEO
RCA jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL (60Hz)
• 1.0±0.1Vp-p, 75Ω terminator
E
D 

6
LAN
HDMI
Connection to the ports (continued)
FAUDIO IN1, GAUDIO IN2
Ø3.5 stereo mini jack
• 200 mVrms 47kΩ terminator
AUDIO IN3 HR, IL
RCA jack x2
• 200 mVrms 47kΩ terminator
AUDIO OUT JR, KL
RCA jack x2
• 200 mVrms 1kΩ output impedance
F
G
J
IK
H 

7
LAN
HDMI
Connection to the ports (continued)
LCONTROL
D-sub 9pin plug
• About the details of RS-232C communication, 
please refer to the following page.
Pin Signal Pin Signal Pin Signal
1 (No connection) 4 (No connection) 7 RTS
2 RD 5 Ground 8 CTS
3 TD 6 (No connection) 9 (No connection)
L
6
5432198
7
MHDMI
• Type :Digital video connector
Pin Signal Pin Signal Pin Signal
1 T.M.D.S. Data2 + 8 T.M.D.S. Data0 Shield 15 SCL
2 T.M.D.S. Data2 Shield 9 T.M.D.S. Data0 - 16 SDA
3 T.M.D.S. Data2 - 10 T.M.D.S....

8
PJLink command
PJLink command
Commands Control Description Parameter or Response
POWR Power Contorol0 = Standby
1 = Power On
POWR ? Power Status inquiry0 = Standby
1 = Power On
2 = Cool Down
INPT Input Source selection11 = COMPUTER IN 1
12 = COMPUTER IN 2
22 = S-VIDEO
23 = VIDEO
31 = HDMI
INPT ? Input Source inquiry11 = COMPUTER IN 1
12 = COMPUTER IN 2
22 = S-VIDEO
23 = VIDEO
31 = HDMI
AVMT AV Mute10 = BLANK off
11 = BLANK on
20 = MUTE off
21 = MUTE on
30 = AV MUTE off
31 = AV MUTE on
AVMT ? AV Mute...

9
PJLink command (continued)
Commands Control Description Parameter or Response
LAMP ? Lamp Status inquiry1st number (digits 1 to 5): Lamp Time
2nd number : 0 = Lamp off, 1 = Lamp on
INST ? Input Source List inquiry 11 12 22 23 31
NAME ? Projector Name inquiryResponds with the name set in "PROJECTOR NAME" 
of "NETWORK"
INF1 ? Manufucturer's Name inquiry HITACHI
INF2 ? Model Name inquiry CP-D31N
INFO ? Other Information inquiry Responds with the factory information and so on
CLSS ?...

10
RS-232C Communication
RS-232C Communication
When the projector connects to the computer by RS-232C communication, the 
projector can be controlled with RS-232C commands from the computer. 
For details of RS-232C commands, refer to RS-232C Communication / Network 
command table (
19).
Connection
1. Turn off the projector and the computer.
2. Connect the projector's CONTROL port and the computer's RS-232C port 
with a RS-232C cable (cross). Use the cable that fulfi lls the specifi cation 
shown...