Hitachi Cp A52 Technical Manual

1
Projector
CP-A52
User's Manual (detailed)
Technical
Resolution (H x V)H. frequency (kHz) V. frequency (Hz) RatingSignal mode
720 x 400 37.985.0VESA TEXT
640 x 480 31.559.9VESAVGA (60Hz)
640 x 480 37.972.8VESAVGA (72Hz)
640 x 480 37.575.0VESAVGA (75Hz)
640 x 480 43.385.0VESAVGA (85Hz)
800 x 600 35.256.3VESASVGA (56Hz)
800 x 600 37.960.3VESASVGA (60Hz)
800 x 600 48.172.2VESASVGA (72Hz)
800 x 600 46.975.0VESASVGA (75Hz)
800 x 600 53.785.1VESASVGA (85Hz)
832 x 624 49.774.5 Mac 16” mode
1024 x 768...

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 Signal Horizontal signal timing (μs)
computer 
Signal Vertical signal timing (lines)
(A) (B)(C) (D) (a)(b) (c)(d)
TEXT 2.03.020.3 1.0 TEXT 342400 1
VGA (60Hz) 3.81.925.4 0.6 VGA (60Hz) 233480 10
VGA (72Hz) 1.34.120.3 0.8 VGA (72Hz) 328480 9...

3
MONITOR OUTCOMPUTER IN2COMPUTER IN1
CONTROLAUDIO
OUTS-VIDEO
Y         CB/PB    CR/PR
VIDEO        L           RAUDIO IN3 AUDIO IN1
2
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR 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
Pin Signal Pin Signal
1
Video Red 10Ground
2 Video Green 11(No connection)
3 Video Blue
12
A: SDA (DDC data)
B
, C
: (No connection)
4
(No...

4
MONITOR OUTCOMPUTER IN2COMPUTER IN1
CONTROLAUDIO
OUTS-VIDEO
Y         CB/PB    CR/PR
VIDEO        L           RAUDIO IN3 AUDIO IN1
2
Connection to the ports (continued)
4
3 21
HVIDEO
RCA jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43
• 1.0±0.1Vp-p, 75Ω terminator
GS-VIDEO
Mini DIN 4pin jack
Pin
Signal
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
H
G
D Y, E CB/PB, F...

5
Connection to the ports (continued)
IAUDIO IN1, JAUDIO IN2
Ø3.5 stereo mini jack
• 200 mVrms 47kΩ terminator
AUDIO IN3 KL, LR
RCA jack x2
• 200 mVrms 47kΩ terminator
MAUDIO OUT
Ø3.5 stereo mini jack
• 200 mVrms 1kΩ output impedance
To input SCART RGB signal;
  ex.:
To input SCART RGB signal to the projector, use a SCART to RCA cable. 
Connect the plugs refer to above ex.. For more reference, please consult your dealer.
SCART connector
(jack)
SCART cable
(plug) RCA plugs
Y 
        CB/PB    CR/PRVIDEO...

6
MONITOR OUTCOMPUTER IN2COMPUTER IN1
CONTROLAUDIO
OUTS-VIDEO
Y         CB/PB    CR/PR
VIDEO        L           RAUDIO IN3 AUDIO IN1
2
Connection to the ports (continued)
NCONTROL
D-sub 9pin plug
• About the details of RS-232C communication,   
please refer to the following page.
Pin Signal PinSignal PinSignal
1 (No connection) 4(No connection) 7RTS
2 RD 5Ground 8CTS
3 TD 6(No connection) 9(No connection)
9
1
2
3
4
5 6
7
8
N 

7
RS-232C Communication
RS-232C Communication
Connecting the cable
1. Turn off the projector and the computer. 
2. Connect the CONTROL port of the projector with a RS-232C port of 
the computer by a RS-232C cable (cross). Use the cable that fulfills the 
specification shown in the previous page.
3. Turn the computer on, and after the computer has started up turn the 
projector on.
Communications setting
19200bps, 8N1
1. Protocol
Consist of header (7 bytes) + command data (6 bytes)
2. Header
BE + EF + 03...

8
RS-232C Communication (continued)
Requesting projector status (Get command)
(1) Send the following request code from the PC to the projector.
 Header + Command data (‘02H’ + ‘00H’ + type (2 bytes) + ‘00H’ + ‘00H’) 
(2) The projector returns the response code  ‘1DH’ + data (2 bytes) to the PC.
Changing the projector settings (Set command)
(1) Send the following setting code from the PC to the projector.
    Header + Command data (‘01H’ + ‘00H’ + type (2 bytes) + setting code (2 bytes)) 
(2) The...

9
Names Operation Type Header Command DataCRC
Action TypeSetting Code
PowerSet Turn off BE  EF0306  00 2A  D3 01  0000  60 00  00
Turn on BE  EF0306  00 BA  D2 01  0000  60 01  00
Get BE  EF0306  00 19  D3 02  0000  60 00  00
[Example return] 
 00  00  01  00 02  00 
  [Off]  [On] [Cool down]
Input SourceSetCOMPUTER1 BE  EF0306  00 FE  D2 01  0000  20 00  00
COMPUTER2 BE  EF0306  00 3E  D0 01  0000  20 04  00
COMPONENT BE  EF0306  00 AE  D1 01  0000  20 05  00
S-VIDEO BE  EF0306  00 9E  D3 01  0000  20...

10
RS-232C communication (continued)
Names Operation Type Header Command Data
CRC Action TypeSetting Code
User Gamma Pattern SetOff BE  EF0306  00 FB  FA 01  0080  30 00  00
9 steps gray scale BE  EF0306  00 6B  FB 01  0080  30 01  00
15 steps gray scale BE  EF0306  00 9B  FB 01  0080  30 02  00
Ramp BE  EF0306  00 0B  FA 01  0080  30 03  00
Get BE  EF0306  00 C8  FA 02  0080  30 00  00
User Gamma Point 1 GetBE  EF0306  00 08  FE 02  0090  30 00  00
Increment BE  EF0306  00 6E  FE 04  0090  30 00  00...