Hitachi Ed-X8250 Projector Users Manual

51

Warranty And After-Ser vice
Warranty and after-service
If a problem occurs with the equipment, first refer to the “Troubleshooting” and run 
through the suggested checks. If this does not resolve the problem, please contact your 
dealer or service company. They will tell you what warranty condition is applied.
Specifications
Specifications
NOTE  • These specifications are subject to change without notice.
ItemSpecification
Product nameLiquid crystal projector
Liquid
Crystal
panel
Panel size1.5 cm (0.6...

52
Specifications
Specifications (continued)
Y R
L
AUDIO IN2AUDIO OUTCONTROL RGB IN1
RGB IN2 USB
RGB OUTAUDIO IN1VIDEOS-VIDEO
CB/PBCR/PRK
306 mm
249 mm
100 mm86 mm 

1
Projector
ED-S8240/ED-X8250
User's Manual – Operating Guide
Technical
Example of computer signal
Resolution (H x V)H. frequency (kHz)V. frequency (Hz)RatingSignal mode
720 x 40037.985.0VESATEXT
640 x 48031.559.9VESAVGA (60Hz)
640 x 48037.972.8VESAVGA (72Hz)
640 x 48037.575.0VESAVGA (75Hz)
640 x 48043.385.0VESAVGA (85Hz)
800 x 60035.256.3VESASVGA (56Hz)
800 x 60037.960.3VESASVGA (60Hz)
800 x 60048.172.2VESASVGA (72Hz)
800 x 60046.975.0VESASVGA (75Hz)
800 x 60053.785.1VESASVGA (85Hz)
832 x...

2

Example of  computer signal
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)
 Display interval (C)  Display interval (c)
Data  Data
H. Sync.  V. Sync.
                  Sync (A)   Sync (a)
Computer/SignalHorizontal signal timing...

3

Connection to the ports
ARGB IN1, BRGB IN2, RGB OUT
 D-sub 15pin mini shrink jack
•  Video  signal:  RGB  separate, Analog,  0.7Vp-p, 
75Ω terminated (positive)
• H/V. sync. Signal: TTL level (positive/negative)
• Composite sync. Signal: TTL level
    At RGB signal                                   At component video signal 
PinSignal
1Video Red
2Video Green
3Video Blue
4(No connection)
5Ground
6Ground Red
7Ground Green
8Ground Blue
9(No connection)
10Ground
11
(No connection)
12A : SDA (DDC data),...

4

Connection to the ports
4321
GVIDEO
RCA jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL60
• 1.0±0.1Vp-p, 75Ω terminator
FS-VIDEO
Mini DIN 4pin jack
PinSignal
1Color signal 0.286Vp-p (NTSC, burst), 75Ω terminator
Color signal 0.300Vp-p (PAL/SECAM, burst) 75Ω terminator
2Brightness signal, 1.0Vp-p, 75Ω terminator
3Ground
4Ground
COMPONENT VIDEO CY, DCB/PB, ECR/PR
RCA jack x3
• System: 525i(480i), 525p(480p), 625i(576i), 750p(720p), 1125i(1080i)
PortSignal
YComponent video Y, 1.0±0.1Vp-p,...

5

Connection to the ports
Y R
L
AUDIO IN
2
AUDIO OU
T
CONTROL
RGB IN1
RGB IN2 USB
RGB OUT
AUDIO IN
1
VIDE
O
S-VIDEO
CB/PB
CR/PRK
H
M
HAUDIO 1-IN (Ø3.5 stereo mini jack), IJAUDIO 2 L/R (RCA jack)
• 200mVrms(max.) 35kΩ termination
KAUDIO OUT (Ø3.5 stereo mini jack)
• 200mVrms(max.) 1kΩ output impedance
LUSB
USB B type jack
MCONTROL
D-sub 9pin plug
• About the details of RS-232C communication, please refer to the following page.
PinSignalPinSignalPinSignal
1(No connection)4(No connection)7 RTS...

6

RS-232C Communication
RS-232C Communication
678912345     678912345 
 CONTROL port  RS-232C cable (Cross)  RS-232C port 
  of the projector   of the computer
 - (1) (1) CD 
  RD (2) (2) RD 
  TD (3) (3) TD 
  - (4) (4) DTR 
  GND (5) (5) GND 
  - (6) (6) DSR 
  RTS (7) (7) RTS 
  CTS (8) (8) DTS 
  - (9) (9) RI
 
Connecting the cable
1. Turn off the projector and the computer. 
2. C o n n e c t   t h e   C O N T R O L  p o r t   o f   t h e   p r o j e c t o r   w i t h   a   R S - 2 3 2 C   p o r t...

7

RS-232C Communication (continued)
Requesting projector status (Get command)
(1) Send the request code Header + Command data (‘02H’+‘00H’+ type (2 bytes)+‘00H’ +‘00H’) from the computer to the projector.
(2) The projector returns the response code ‘1DH’+ data (2 bytes) to the computer.
Changing the projector settings (Set command)
(1) Send the setting code Header + Command data (‘01H’+‘00H’+ type (2 bytes) + 
setting code (2 bytes)) from the computer to the projector. 
(2) The projector changes the...

8

Names Operation TypeHeaderCommand DataCRCActionTypeSetting Code
PowerSet Turn offBE  EF0306  002A  D301  0000  6000  00
Turn on
BE  EF0306  00 BA  D201  0000  6001  00
GetBE  EF0306  0019  D302  0000  6000  00
(Example return) 
  00  00  01  00  02  00 
  (Off)  (On)  (Cool down)
 RGB2 StatusGetBE  EF0306  00F1  D802  0021  2000  00
  00  00  01  00
  (RGB IN2)  (RGB OUT)
Input SourceSetRGB IN 1BE  EF0306  00FE  D201  0000  2000  00
RGB IN 2BE  EF0306  003E  D001  0000  2004  00
VIDEOBE  EF0306  006E...