Hitachi Cp Aw250n Technical Manual

1
NOTE      •  Be  sure  to  check  jack  type,  signal  level,  timing  and  resolution  before 
connecting this projector to a PC.
•  Some  PCs  may  have  multiple  display  screen  modes.  Use  of  some  of  these  modes 
will not be possible with this projector.
• Depending on the input signal, full-size display may not be possible in some cases. 
Refer to the number of display pixels above.
• Although the projector can display signals with resolution up to UXGA (1600x1200), 
the signal will be...

2
Initial set signals
Initial set signals
The  following  signals  are  used  for  the  initial  settings.  The  signal  timing  of  some 
computer  models  may  be  different.  In  such  case,  adjust  the  items  V  POSITION 
and H POSITION in the IMAGE menu. 
 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) 
Resolution 
(H x V) Horizontal signal timing (μs)
Vertical signal timing (lines)
Signal mode...

3
Connection to the ports
Connection to the ports
NOTICE►Use the cables with straight plugs, not L-shaped ones, as  the 
input ports of the projector are recessed.
►Only the signal that is input from the COMPUTER IN1 or IN2 can be output 
from the MONITOR OUT port.
COMPUTER IN1
COMPUTER IN2HDMIUSB TYPE B
S-VIDEO
VIDEOAUDIO OUT
AUDIO IN3
AUDIO IN1
AUDIO IN2MIC
MONITOR OUT
CONTROL
     USB
TYPE A   DC5V 
     0.5A
BA
C
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR OUT
D-sub 15pin mini shrink jack
(1) for PC...

4
DS-VIDEO
Mini DIN 4pin jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL(60Hz)
PinSignal
1 Color 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
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
COMPUTER IN1
COMPUTER IN2HDMIUSB TYPE B
S-VIDEO
VIDEOAUDIO OUT
AUDIO IN3
AUDIO...

5
Connection to the ports (continued)
GAUDIO IN1, HAUDIO IN2
Ø3.5 stereo mini jack
• 200 mVrms, 47kΩ terminator
AUDIO IN3 IR, JL
RCA jack x2
• 200 mVrms, 47kΩ terminator
AUDIO OUT KR, LL
RCA jack x2
• 200 mVrms, 1kΩ output impedance
MMIC
Ø3.5 mono mini jack

• 2 mVrms, 1kΩ terminator

• 20 mVrms, 1kΩ terminator
FHDMI
• Type :Digital audio/video connector
• Audio signal : Linear PCM (Sampling rate; 32/44.1/48 kHz)
PinSignal PinSignal PinSignal
1T.M.D.S. Data2 + 8T.M.D.S. Data0 Shield 15SCL
2 T.M.D.S....

6
Connection to the ports (continued)
OUSB TYPE B
USB B type jack
PinSignal
1 +5V
2 - Data
3 + Data
4 Ground
43
21
PCONTROL
D-sub 9pin plug
•   About the details of RS-232C communication,   
please refer to the section "RS-232C Communication".
Pin Signal PinSignal PinSignal
1 (No connection) 4(No connection) 7RTS
2 RD 5Ground 8CTS
3 TD 6(No connection) 9(No connection)
QLAN
RJ-45 jack87654321
Pin Signal PinSignal PinSignal
1 TX+ 4- 7-
2 TX- 5- 8-
3 RX+ 6RX-
NUSB TYPE A
USB A type jack4321
Pin...

7
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).
       Y       CB/PB     CR/PRCOMPONENT VIDEO OUT
COMPUTER IN1
COMPUTER IN2HDMIUSB TYPE B
S-VIDEO
VIDEOAUDIO OUT
AUDIO IN3
AUDIO IN1
AUDIO IN2MIC
MONITOR OUT...

8
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 (
&17 ).
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...

9
RS-232C Communication (continued)
Communicaion settings
1. Protocol
19200bps,8N1
2. Command format  ("h" shows hexadecimal)
Byte Number01 2345 6 7
8910 11 12
Command
ActionHeader Data
Header code
Packet
DatasizeCRC  flag Action
TypeSetting 
code
L H LH LH LH LH LH
Change setting to 
desired value [(cL)(cH)] 
by [(eL)(eH)].
BEh EFh 03h06h00h(aL)
(aH) 01h00h(bL)(bH) (cL)(cH)
Read projector 
internal setup value [(bL)
(bH)] .(aL) (aH) 02h00h(bL)(bH) 00h 00h
 
Increment setup value 
[(bL)(bH)] by...

10
RS-232C Communication (continued)
3. Response code / Error code ("h" shows hexadecimal)
(1)   
ACK reply : 06h 
When the projector receives the Set, Increment, Decrement or Execute 
command correctly, the projector changes the setting data for the specified 
item by [Type], and it returns the code.
(2)   NAK reply : 15h 
When the projector cannot understand the received command, the projector 
returns the error code. 
In such a case, check the sending code and send the same command again.
(3)...