LCD Projector
HL2750U
Controlling the projector using a personal computer
This projector can be controlled by connecting a personal computer with RS-232C terminal.
PC-controllable functions:
• Turning the power ON or OFF
• Changing input signals
• Inputting commands by pressing the buttons on the control panel and remote control
• Menu setting
Connection
To RS-232C terminal
D-SUB 9-pin
RS-232C cable
D-SUB 9-pin
SERIAL
Important:
• Make sure that your computer and projector are turned off before connection.
• Boot up the computer first, and then plug the power cord of the projector.
(If you do not follow this instruction, the Com port may not function.)
• Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.
1) Interface
PROTOCOL
BAUD RATE
DATA LENGTH
PARITY BIT
STOP BIT
FLOW CONTROL
RS-232C
9600 [bps]
8 [bits]
NONE
1 [bit]
NONE
This projector uses RXD, TXD and GND lines for RS-232C control.
For RS-232C cable, the reverse type cable should be used.
2) Control command diagram
The command consists of the address code, function code, data code, and end code. The length of the command varies among the functions.
HEX
ASCII
Address code
30h 30h
‘0’ ‘0’
[Address code]
[Function code]
[Data code]
[End code]
Function code
Function
Function
Data code
Data
Data
End code
0Dh
30h 30h (In ASCII code, ‘0’ ‘0’) fixed.
A code of each fixed control move.
A code of each fixed control data (number) and not always indicated.
0Dh (In ASCII code, ‘ ’) fixed.
1
3) Control sequence
(1) Send the command from the personal computer to the projector.
(2) The projector will send a return command after it receives an end code. If the command is not received correctly, the projector will not send the return command.
(3) The personal computer checks the command and confirms if the sent command has been executed or not.
(4) This projector sends various codes other than the return code. When having a control sequence by RS-232C, reject other codes from the personal computer.
• During signal switching, the command may not take effect even when the projector sends the return command.
After signal switching completes, wait for the mode indication to disappear before sending the next command.
• When sending commands successively, wait to receive the return command of the current command before sending a next command.
• Keep intervals of at least 400 ms between receipt of a return command and sending of a next command.
• Any commands will not be executed for 10 seconds after the power is turned on.
[Example] When turning the power ON. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘ ’
Status code from the projector
Description
Command for POWER ON
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘ ’
Command receipt confirmation
(Command echo back)
4) Operation commands
(Not executable in stand-by mode. When the commands for input select are sent while the splash screen is being displayed, the splash screen is only canceled.)
The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation commands have no data codes.
Operation
POWER ON
ASCII
!
POWER OFF "
INPUT COMPUTER 1 _r1
INPUT COMPUTER 2 _r2
INPUT DVI _d1
INPUT VIDEO
INPUT S-VIDEO
_v1
_v2
21h
22h
HEX Note
This command is invalid for 1 minute after the power is turned off.
This command is invalid for 1 minute after the power is turned on.
5Fh 72h 31h This command will not be executed in Stand-by mode or when the MUTE is executed.
5Fh 72h 32h This command will not be executed in Stand-by mode or when the MUTE is executed.
5Fh 64h 31h This command will not be executed in Stand-by mode or when the MUTE is executed.
5Fh 76h 31h This command will not be executed in Stand-by mode or when the MUTE is executed.
5Fh 76h 32h This command will not be executed in Stand-by mode or when the MUTE is executed.
[Example] When setting the input signal to COMPUTER 1. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 5F 72 31 0D
‘0’ ‘0’ ‘_’ ‘r’ ‘1’ ‘ ’
Status code from the projector
30 30 5F 72 31 0D
‘0’ ‘0’ ‘_’ ‘r’ ‘1’ ‘ ’
Description
Command for setting the input signal to COMPUTER 1
Command receipt confirmation
(Command echo back)
5) Volume commands
(Not executable in stand-by mode. Possible only to read during muting.)
The volume commands are used for the volume setting of this projector with the value.
VALUE
VOLUME
ITEM ASCII
VL 56h 4Ch
HEX
How to set the value
Use the ASCII or HEX code as shown below to set the value.
00–21
ASCII
HEX
‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’ ‘8’ ‘9’
30h 31h 32h 33h 34h 35h 36h 37h 38h 39h
[Example] When setting the volume to 15. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 56 4C 31 35 0D
‘0’ ‘0’ ‘V’ ‘L’ ‘1’ ‘5’ ‘ ’
Status code from the projector
Description
Command for setting the volume
30 30 56 4C 31 35 0D
‘0’ ‘0’ ‘V’ ‘L’ ‘1’ ‘5’ ‘ ’
Command receipt confirmation
(Command echo back)
2
6) Keystone commands
(Not executable in stand-by mode. Possible only to read during muting.)
The keystone commands are used for the keystone setting of this projector with the value. The value will vary depending on the installation conditions, etc.)
ITEM
KEYSTONE (vertical)
KEYSTONE (horizontal)
ASCII
KS
KSH
HEX
4Bh 53h
4Bh 53h 48h
±35
±25
VALUE
How to set the value
Use the ASCII or HEX code as shown below to set the value.
ASCII
HEX
‘+’ ‘-’ ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’ ‘8’ ‘9’
2Bh 2Dh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h
7) Mute commands
(Not executable in stand-by mode. When the mute commands are sent while the splash screen is being displayed, the splash screen is not muted but only canceled.)
The mute commands are used for the mute setting of this projector with the 0 (30h) and 1 (31h).
MUTE
ITEM ASCII
MUTE
HEX
4Dh 55h 54h 45h
VALUE
0 (OFF), 1 (ON)
8) Remote commands
(Not executable in stand-by mode. When the remote commands are sent while the splash screen is being displayed, the splash screen is only canceled.)
Some remote control operations can be achieved by the remote command codes. The remote commands have no data codes.
Button’s name on remote
+ VOLUME
- VOLUME
KEYSTONE
EXPAND
PinP
MUTE
MENU
ENTER
AUTO POSITION
STILL
ASPECT
WALL SCREEN
CE r10 r09 ra4 re2 r2b r4f r59 r54 rd7 re7 r02 r04 ra6 r53
ASCII r06 r07 r43
HEX
72h 30h 36h
72h 30h 37h
72h 34h 33h
72h 30h 32h
72h 30h 34h
72h 61h 36h
72h 35h 33h
72h 32h 62h
72h 34h 66h
72h 35h 39h
72h 35h 34h
72h 31h 30h
72h 30h 39h
72h 61h 34h
72h 65h 32h
72h 64h 37h
72h 65h 37h
[Example] When displaying the MENU selection bar. (Figures and symbols enclosed in quotation marks are
ASCII codes.):
Sending commands from the PC, etc.
30 30 72 35 34 0D
‘0’ ‘0’ ‘r’ ‘5’ ‘4’ ‘ ’
Status code from the projector
30 30 72 35 34 0D
‘0’ ‘0’ ‘r’ ‘5’ ‘4’ ‘ ’
Description
Command operating the same as the
MENU button
Command receipt confirmation
(Command echo back)
3
9) Password lock commands
The password lock commands control the password lock. The password lock enabling or disabling command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 added to the end of the data code. When the password lock is enabled or disabled successfully, the projector sends a return command comprising the data code, password, and “1” at the end. When enabling or disabling the password lock fails, it sends a return command with “0” at the end. There is no reconfirmation of the password. The password input command is for enabling projection of image when password lock has been set to DISPLAY INPUT. The password input command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 at the end.
ITEM
Password lock enabling/ disabling
Password input
ASCII HEX
PSLOCK 50h 53h 4Ch 4Fh 43h 4Bh
PASS 50h 41h 53h 53h
**** is a 4 to 8-digit password comprised of any figures 1 to 4.
VALUE
0**** (Disabling), 1**** (DISPLAY INPUT),
2**** (MENU ACCESS), 3**** (SPLASH ID SCREEN)
****
[Example] When enabling the password lock of DISPLAY INPUT (in the case that the password is 123412):
Sending commands from the PC, etc.
30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 0D
‘0’ ‘0’ ‘P’ ‘S’ ‘L’ ‘O’ ‘C’ ‘K’ ‘1’ ‘1’ ‘2’ ‘3’ ‘4’ ‘1’ ‘2’ ‘ ’
Status code from the projector
30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 31 0D
‘0’ ‘0’ ‘P’ ‘S’ ‘L’ ‘O’ ‘C’ ‘K’ ‘1’ ‘1’ ‘2’ ‘3’ ‘4’ ‘1’ ‘2’ ‘1’ ‘ ’
Description
Command for enabling the password lock of DISPLAY INPUT
Response informing that the projector succeeded in enabling the password lock of DISPLAY INPUT
10) Reading command diagram
The projectors operating status, such as POWER-ON/OFF and the currently selected input terminal, etc. can be monitored.
POWER ON
POWER OFF
INPUT COMPUTER 1
INPUT COMPUTER 2
INPUT DVI
INPUT VIDEO
INPUT S-VIDEO
POWER ON/OFF INPOSSIBLE
POWER ON/OFF POSSIBLE
NO SIGNAL SUPPLIED
SIGNAL SUPPLIED
ASCII
Function Data (Receive) vP 1 vP vI vI vI
0 r1 r2 d1 vI vI vPK vPK vSM vSM v1 v2
0
1
0
1
Function
76h 50h
76h 50h
76h 49h
76h 49h
76h 49h
76h 49h
76h 49h
76h 50h 4Bh
76h 50h 4Bh
76h 53h 4Dh
76h 53h 4Dh
HEX
Data (Receive)
31h
30h
72h 31h
72h 32h
64h 31h
76h 31h
76h 32h
30h
31h
30h
31h
Use the following commands to obtain the values of the items in the INFORMATION menu.
ITEM
LAMP TIME (LOW)
ASCII vLE
HEX
76h 4Ch 45h
RESOLUTION vRESO 76h 52h 45h 53h 4Fh
VERTICAL FREQUENCY vVFREQ 76h 56h 46h 52h 45h 51h
HORIZONTAL FREQUENCY vHFREQ 76h 48h 46h 52h 45h 51h
SYNC. TYPE vSYNCT 76h 53h 59h 4Eh 43h 54h
VALUE hhhhmm
HHHHxVVVV
****.**
****.**
0 (NO SIGNAL), 3 (3wire), 4 (4wire),
5 (5wire), 6 (SCART)
“hhhh” and “mm” represent hours and minutes respectively.
“HHHH” and “VVVV” represent the horizontal and vertical resolutions respectively.
The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to the received command its current operating status as the data code and send it back to the PC.
[Example] When checking the currently selected input terminal (when the INPUT VIDEO is being selected):
Sending commands from the PC, etc.
30 30 76 49 0D
‘0’ ‘0’ ‘v’ ‘l’ ‘ ’
Status code from the projector
30 30 76 49 76 31 0D
‘0’ ‘0’ ‘v’ ‘l’ ‘v’ ‘1’ ‘ ’
Description
Command for checking the input terminal
Check result (VIDEO)
4
11) Menu setting commands
(Not executable in stand-by mode. Possible only to read during muting.)
The menu setting commands are used for the menu setting of this projector. If the personal computer sends the command without attaching the data code, the projector attaches to the received command its current setting value as the data code and send it back to the PC.
ITEM
COLOR ENHANCER
ASCII HEX VALUE
CE 43h 45h 0 (AUTO), 1 (PRESENTATION), 2 (STANDARD),
3 (THEATER), 4 (sRGB), 5 (USER)
CEU1GS 43h 45h 55h 31h 47h 53h 0 (DYNAMIC), 1 (NATURAL), 2 (DETAIL) COLOR ENHANCER-
USER-GAMMA MODE
COLOR ENHANCER-
USER-RGB-COLOR
COLOR ENHANCER-
USER-RGB-TINT
CONTRAST
BRIGHTNESS
COLOR TEMP.
COLOR TEMP.-USER
(CONTRAST)
COLOR TEMP.-USER
(BRIGHTNESS)
COLOR
TINT
SHARPNESS
NOISE REDUCTION
CTI
INPUT LEVEL
CEU1C 43h 45h 55h 31h 43h
CEU1T 43h 45h 55h 31h 54h
A
P
PP
QQ
Q
T
S
R
NR
CTI
IPL
50h 50h
51h 51h
41h
50h
51h
54h
53h
52h
4Eh 52h
43h 54h 49h
49h 50h 4Ch
±10
±10
±30
±30
1 (STANDARD), 2 (HIGH), 3 (LOW), 4 (USER)
±30 ±30 ±30 (R, G, B)
±30 ±30 ±30 (R, G, B)
WALL SCREEN WS 57h 53h
WALL SCREEN (BEIGE)
WALL SCREEN (LIGHT BLUE)
WSY
WSB
WALL SCREEN (LIGHT GREEN) WSG
WALL SCREEN (PINK) WSP
LAMP MODE
AUTO POWER ON
AUTO POWER OFF
SPLASH SCREEN
LM
APON
APOF
SS
57h 53h 59h
57h 53h 42h
57h 53h 47h
57h 53h 50h
4Ch 4Dh
41h 50h 4Fh 4Eh
41h 50h 4Fh 46h
53h 53h
BACK COLOR
MUTE MODE
BB
MM
42h 42h
4Dh 4Dh
IMAGE REVERSE
ASPECT
IR
SC
49h 52h
53h 43h
ASPECT (Position of 16:9 image)
SCP 53h 43h 50h
PASSWORD FUNCTION PSLOCK 50h 53h 4Ch 4Fh 43h
4Bh
±10
±10
±5
0 (OFF), 1 (ON)
0 (OFF), 1 (ON)
±5,
For DVI input: +0 (NORMAL), +1 (ENHANCED)
0 (OFF), 1 (BEIGE), 2 (LIGHT BLUE), 3 (LIGHT GREEN),
4 (PINK), 5 (BLACK BOARD)
1–5
1–5
1–5
1–5
0 (STANDARD), 1 (LOW)
0 (OFF), 1 (ON)
00 (OFF), 05, 10, 15, 30, 60
0 (OFF), 1 (ON)
0 (BLACK), 1 (BLUE), 2 (IMAGE)
0 (BLACK), 1 (IMAGE)
0 (OFF), 1 (MIRROR), 2 (INVERT), 3 (MIRROR INVERT)
0 (AUTO), 1 (16:9), 2 (REAL), 3 (FULL)
0 (CENTER), 1 (UPPER), 2 (LOWER)
MENU POSITION
CINEMA MODE
VIDEO SIGNAL
(VIDEO only)
SET UP
SCART INPUT
LANGUAGE
MP
CINE
VS
STU
SRT
LG
4Dh 50h
43h 49h 4Eh 45h
56h 53h
53h 54h 55h
53h 52h 54h
4Ch 47h
0**** (UNLOCK), 1**** (DISPLAY INPUT),
2**** (MENU ACCESS), 3**** (SPLASH ID SCREEN)
**** is a 4 to 8-digit password comprised of any figures 1 to 4.
0 (Upper left), 1 (Lower right)
0 (OFF), 1 (AUTO)
0 (AUTO), 1 (NTSC), 2 (PAL), 3 (SECAM), 4 (4.43NTSC),
5 (PAL-M), 6 (PAL-N), 7 (PAL-60)
0 (AUTO), 1 (OFF), 2 (3.75%), 3 (7.5%)
0 (OFF), 1 (ON)
0 ( ), 1 (English), 2 (Español), 3 (Deutsch),
4 (Français), 5 (Italiano), 6 ( ), 7 ( ),
8 ( ), 9 (PORTUGUÊS)
RESET ALL
MEMORY CALL
HORIZ.POSITION
VERT. POSITION
FINE SYNC.
TRACKING
COMPUTER INPUT
OVER SCAN
RSTALL
MMC
HP
VP
FN
TRK
CIN
VOS
52h 53h 54h 41h 4Ch 4Ch
4Dh 4Dh 43h
48h 50h
56h 50h
46h 4Eh
54h 52h 4Bh
43h 49h 4Eh
56h 4Fh 53h
0 (AUTO), 1 (MEMORY1), 2 (MEMORY2)
+ (increment), - (decrement) *1
+ (increment), - (decrement) *1
00–31
+ (increment), - (decrement) *1
0 (RGB), 1 (YC
B
C
R
/YP
B
P
R
), 2 (AUTO)
00 (90%) – 10 (100%)
5
ITEM
HOLD
HOLD BEGIN
HOLD END
HOLD
HOLD BEGIN
HOLD END
CLAMP POSITION
CLAMP WIDTH
VERT. SYNC
LPF
SHUTTER(U)
SHUTTER(L)
SHUTTER(LS)
SHUTTER(RS)
CLW
VSC
LPF
SHU
SHL
SHLS
SHRS
ASCII
HLD
HLB
HLE
HLD
HLB
HLE
CLP
HEX
48h 4Ch 44h
48h 4Ch 42h
48h 4Ch 45h
48h 4Ch 44h
48h 4Ch 42h
48h 4Ch 45h
43h 4Ch 50h
43h 4Ch 57h
56h 53h 43h
4Ch 50h 46h
53h 48h 55h
53h 48h 4Ch
53h 48h 4Ch 53h
53h 48h 52h 53h
*1) Setting range differs depending on the input signals.
0 (OFF), 1 (ON)
00–99
00–99
0 (OFF), 1 (ON)
00–99
00–99
001–255
01–63
0 (OFF), 1 (AUTO)
0 (OFF), 1 (ON)
00–20
00–20
00–20
00–20
VALUE
• Some commands are not executed depending on the input signal. The operational restrictions same as those on the menu setting are applied. Refer to “Menu operation” in the User Manual for more details.
How to set the value
Use the ASCII or HEX code as shown below to set the value.
ASCII
HEX
‘+’ ‘-’ ‘0’ ‘1’ ‘2’ ‘3’ ‘4’ ‘5’ ‘6’ ‘7’ ‘8’ ‘9’
2Bh 2Dh 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h
[Example 1] When setting the AUTO POWER ON to ON. (Figures and symbols enclosed in quotation marks are
ASCII codes.):
Sending commands from the PC, etc.
30 30 41 50 4F 4E 31 0D
‘0’ ‘0’ ‘A’ ‘P’ ‘O’ ‘N’ ‘1’ ‘ ’
Status code from the projector
30 30 41 50 4F 4E 31 0D
‘0’ ‘0’ ‘A’ ‘P’ ‘O’ ‘N’ ‘1’ ‘ ’
Description
Command for setting the AUTO
POWER ON to ON
Command receipt confirmation
(Command echo back)
[Example 2] When setting the CONTRAST R of the COLOR TEMP.-USER to +10, the CONTRAST G to 0, and the
CONTRAST B to -5. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 50 2B 31 30 2B 30 30 2D 30 35 0D
‘0’ ‘0’ ‘P’ ‘+’ ‘1’ ‘0’ ‘+’ ‘0’ ‘0’ ‘-’ ‘0’ ‘5’ ‘ ’
Status code from the projector
30 30 50 2B 31 30 2B 30 30 2D 30 35 0D
‘0’ ‘0’ ‘P’ ‘+’ ‘1’ ‘0’ ‘+’ ‘0’ ‘0’ ‘-’ ‘0’ ‘5’ ‘ ’
Description
Command for setting the picture control
Command receipt confirmation
(Command echo back)
[Example 3] When checking the TINT setting (when the TINT is set to +10). (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 53 0D
‘0’ ‘0’ ‘S’ ‘ ’
Status code from the projector
30 30 53 2B 31 30 0D
‘0’ ‘0’ ‘S’ ‘+’ ‘1’ ‘0’ ‘ ’
Description
Command for checking the TINT setting
Check result (+10)
[Example 4] When setting the GAMMA MODE of the COLOR ENHANCER-USER to DETAIL. (Figures and symbols enclosed in quotation marks are ASCII codes.):
Sending commands from the PC, etc.
30 30 43 45 55 31 47 53 32 0D
‘0’ ‘0’ ‘C’ ‘E’ ‘U’ ‘1’ ‘G’ ‘S’ ‘2’ ‘ ’
Status code from the projector
30 30 43 45 55 31 47 53 32 0D
‘0’ ‘0’ ‘C’ ‘E’ ‘U’ ‘1’ ‘G’ ‘S’ ‘2’ ‘ ’
Description
Command for setting the picture control
Command receipt confirmation
(Command echo back)
6
