Eiki LC-XG300 Installation instructions

BASIC SERIAL COMMAND SPECIFICATIONS
LC-XG300/250
Ver 0.01
TENTATIVE

LC-XG300/250_ Basic Serial Command Specifications
Ver. Rev.A Page 1
−CONTENTS −
1. Overview.......................................................................................................................4
2. Serial Interface Specifications....................................................................................4
2.1. Transfer Specifications........................................................................................4
2.2. Connection............................................................................................................4
3. Notes for Communication...........................................................................................5
4. Functional Execution Command Table......................................................................6
5. Status Read Command Table .....................................................................................8
6. Functional Execution Command................................................................................9
6.1. Format...................................................................................................................9
6.2. Command Pipelining............................................................................................9
6.3. Transfer Example..................................................................................................9
6.4. Operation Requirements....................................................................................10
6.5. POWER ON Command.......................................................................................11
6.6. POWER OFF Command （Quick Power OFF）...............................................11
6.7. POWER OFF Command.....................................................................................11
6.8. INPUT 1 Command.............................................................................................11
6.9. INPUT 2 Command.............................................................................................11
6.10. INPUT 3 Command..........................................................................................12
6.11. NETWORK Command.....................................................................................12
6.12. VOLUME + Command.....................................................................................12
6.13. VOLUME – Command.....................................................................................12
6.14. SOUND MUTE ON Command.........................................................................12
6.15. SOUND MUTE OFF Command.......................................................................13
6.16. VIDEO MUTE ON Command...........................................................................13
6.17. VIDEO MUTE OFF Command.........................................................................13
6.18. Screen Normal size Command ......................................................................13
6.19. Screen Wide size Command..........................................................................13
6.20. MENU ON Command ......................................................................................13
6.21. MENU OFF Command.....................................................................................14
6.22. DISPLAY CLEAR Command...........................................................................14
6.23. BRIGHTNESS + Command.............................................................................14
6.24. BRIGHTNESS – Command.............................................................................14
6.25. INPUT 2 VIDEO Command .............................................................................14
6.26. INPUT 2 Y,Pb/Cb,Pr/Cr Command..................................................................14
6.27. INPUT 2 RGB Command.................................................................................15
6.28. IMAGE Command............................................................................................15
6.29. ON START Setting Command........................................................................15
6.30. ON START Cancel Command.........................................................................15

LC-XG300/250_ Basic Serial Command Specifications
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6.31. Power Management Ready Command..........................................................15
6.32. Power Management OFF Command..............................................................15
6.33. Power Management Shut down Command ..................................................16
6.34. D.ZOOM + Command......................................................................................16
6.35. D.ZOOM – Command......................................................................................16
6.36. INPUT 3 AUTO Command...............................................................................16
6.37. INPUT 3 VIDEO Command .............................................................................16
6.38. INPUT 3 S-VIDEO Command..........................................................................16
6.39. POINTER RIGHT Command ...........................................................................17
6.40. POINTER LEFT Command .............................................................................17
6.41. POINTER UP Command .................................................................................17
6.42. POINTER DOWN Command...........................................................................17
6.43. ENTER Command...........................................................................................17
6.44. FREEZE ON Command...................................................................................17
6.45. FREEZE OFF Command.................................................................................18
6.46. ZOOM – Command..........................................................................................18
6.47. ZOOM + Command .........................................................................................18
6.48. FOCUS - Command.........................................................................................18
6.49. FOCUS + Command........................................................................................18
6.50. INPUT 1 Analog RGB Command....................................................................18
6.51. INPUT 1 SCART Command ............................................................................19
6.52. INPUT 1 DVI (PC Digital) Command ..............................................................19
6.53. INPUT 1 DVI (AV HDCP) Command ...............................................................19
6.54. LENS SHIFT UP Command.............................................................................19
6.55. LENS SHIFT DOWN Command......................................................................19
6.56. LENS SHIFT LEFT Command ........................................................................19
6.57. LENS SHIFT RIGHT Command ......................................................................20
6.58. AUTO PC ADJ. Command ..............................................................................20
6.59. PRESENTATION TIMER Command................................................................20
6.60. KEYSTONE ↑Command ...............................................................................20
6.61. KEYSTONE ↓Command ...............................................................................20
7. Status Read Command..............................................................................................21
7.1. Format.................................................................................................................21
7.2. Transfer Example................................................................................................21
7.3. Status Read Command ......................................................................................22
7.4. Input Mode Read Command..............................................................................24
7.5. Lamp Time Read Command ..............................................................................24
7.6. Setting Read Command.....................................................................................24
7.7. Temp Read Command........................................................................................25

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7.8. Lamp Mode Read Command .............................................................................25

LC-XG300/250_ Basic Serial Command Specifications
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1. Overview
1.1. These specifications define projector control commands for LC-XG300/250 (1.0” XGAⅢ).
1.2. The projector control commands are used to remotely control a projector through RS-232C from a
computer.
2. Serial Interface Specifications
2.1. Transfer Specifications
Item Specifications
Synchronous system Asynchronous
Transmission Speed 9600 / 19200
Data Length 8 bit
Parity N/A
Stop Bit 1
Flow Control N/A
1) Transmission speed: initial setting value is 19200.
2) Transmission speed can be changed in service mode.
2.2. Connection
Dedicated serial cable must be used for connection to a computer and a projector.
PC Projector
COM 1 ControlPort
（D-Sub 9 Pin）（Mini 8 Pin）

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3. Notes for Communication
3.1. The projector control command is defined as one command/one line that starts with “C” and ends
with carriage return (0x0D).
3.2. When the projector receives carriage return (0x0D), decoding starts.
3.3. There are two types of Commands: Functional Execution Commands, which execute the same
function as the projector keys and remote control, and Status Read Commands, which get the basic
status of the projector.
Example of Functional Execution Command: “C05” [CR]
Example of Status Read Command: “CR0” [CR]
3.4. It clears the information of buffer in the cases below.
3.4.1. When the projector receives LF (0x0A) or EOF (0x1A)
3.4.2. When it takes more than one second to receive one command (until the projector receives
carriage return since it has received the first data)
3.5. For the pipelining of Functional Execution Command, wait for the following interval time after
receiving a response.
3.5.1. Commands “VOLUME+/-“, “ZOOM UP/DOWN”, “FOCUS UP/DOWN” and “LENS-SHIFT
UP/DOWN/LEFT/RIGHT” →100ms
3.5.2. Other Commands →500ms
3.6. For the pipelining of Status Read Command, wait for the interval time of 500ms at least after
receiving a response.
3.7. When a command is issued before receiving a response, the function is not executed properly
except when there is no Response for more than 5 seconds.
3.8. It takes about 7 seconds for internal initialization after plugging in AC power. During this time, it
cannot process commands. Do not issue any command.
3.9. Internal initialization and lamp lighting is executed during 7 seconds after powering on in Standby
mode. When the command is sent during this time, ACK value is returned but the function is not
executed. However, Status Read Command is executed 500ms after receiving ACK value for Power
ON command.
3.10. During countdown and cooling down:
When the command is received during countdown after Power ON and cooling down after Power
OFF, ACK value is returned but the function is not executed. However, Status Read Command
can be executed.
3.11. On switching INPUT
During 5 seconds after switching action has started in response to reception of INPUT switching
command, ACK value is returned but the function is not executed when command is received.
However, for Status Read Command, the function is executed in 500ms after receiving ACK value
for INPUT switching command.
3.12. The number of characters of response to Status Read Commands depends on commands.
Please see [7. Status Read Commands].

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3.13. Characters for commands must be Capital (A - Z).
4. Functional Execution Command Table
Command Item Command Item
C00 POWER ON C20 BRIGHTNESS +
C01 POWER OFF
（Quick Power OFF）C21 BRIGHTNESS -
C02 POWER OFF C22
―――
C03 ――― C23 INPUT 2 VIDEO
C04 ――― C24 INPUT 2 Y,Pb/Cb,Pr/Cr
C05 INPUT 1 C25
INPUT 2 RGB
C06 INPUT 2 C26
―――
C07 INPUT 3 C27 IMAGE
C08 NETWORK C28 ON START Enable
C09 VOLUME + C29 ON START Disable
C0A VOLUME - C2A POWER MANAGEMENT READY
C0B SOUND MUTE ON C2B POWER MANAGEMENT OFF
C0C SOUND MUTE OFF C2C ―――
C0D VIDEO MUTE ON C2D
―――
C0E VIDEO MUTE OFF C2E
POWER MANAGEMENT SHUT DOWN
C0F SCREEN NORMAL SIZE（4：3）C2F ―――
C10 SCREEN WIDE SIZE（16：9）C30 D.ZOOM +
C11 ――― C31 D.ZOOM -
C12 ――― C32 INPUT 3 AUTO
C13 ――― C33 INPUT 3 VIDEO
C14 ――― C34 INPUT 3 S-VIDEO
C15 ――― C35 ―――
C16 ――― C36 ―――
C17 ――― C37 ―――
C18 ――― C38 ―――
C19 ――― C39 ―――
C1A ――― C3A POINTER RIGHT
C1B ――― C3B POINTER LEFT
C1C MENU ON C3C POINTER UP
C1D MENU OFF C3D POINTER DOWN
C1E DISPLAY CLEAR C3E
―――
C1F ――― C3F ENTER
――― means no function.

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Command Item Command Item
C40 ――― C80 ―――
C41 ――― C81 ―――
C42 ――― C82 ―――
C43 FREEZE ON C83
―――
C44 FREEZE OFF C84
―――
C45 ――― C85 ―――
C46 ZOOM - C86
―――
C47 ZOOM + C87
―――
C48 ――― C88 ―――
C49 ――― C89 Auto PC ADJ.
C4A FOCUS - C8A PRESENTATION TIMER
C4B FOCUS + C8B
―――
C4C ――― C8C ―――
C4D ――― C8D ―――
C4E ――― C8E KEYSTONE ↑
C4F ――― C8F KEYSTONE ↓
C50 INPUT 1 Analog RGB C90 ―――
C51 INPUT 1 Scart C91 ―――
C52 INPUT 1 DVI （PC Digital）C92 ―――
C53 INPUT 1 DVI （AV HDCP）C93 ―――
C54 Computer Component C94
―――
C55 ――― C95 ―――
C56 ――― C96 ―――
C57 ――― C97 ―――
C58 ――― C98 ―――
C59 ――― C99 ―――
C5A ――― C9A ―――
C5B ――― C9B ―――
C5C ――― C9C ―――
C5D LENS SHIFT UP C9D ―――
C5E LENS SHIFT DOWN C9E ―――
C5F LENS SHIFT LEFT C9F ―――
C60 LENS SHIFT RIGHT ――― ―――
――― means no function.

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5. Status Read Command Table
Command Item Memo
CR0 Status Read
CR1 Input Mode Read
CR2 ―――
CR3 (Corresponding) Lamp Time Read
CR4 Setting Read
CR5 ―――
CR6 Temp Read
CR7 Lamp Mode Read
CR8 ―――
CR9 ―――
CRA ―――
CRB ―――
CRC ―――
――― means no function.

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6. Functional Execution Command
6.1. Format
6.5.1. PC issues a command in format as below.
“C” COMMAND [CR]
Command: two characters (See Basic Functional Execution Command Table)
6.5.2. A projector changes received data to decode and returns a result after being ready to receive
next command.
[ACK]［CR］：（0x06、0x0D）When received Functional Execution Commands.
6.5.3. “？”［CR］：When the received data cannot be decoded.
6.2. Command Pipelining
When some functions need the command pipelining (Volume +/-, Zoom +/-, etc), the performance is
the same as that of the remote control;
6.2.1. System: issue any command every 100 ms.
6.2.2. When receiving the appropriate command, the function is executed for 120 ms from the
moment.
6.2.3. When receiving the same command continuously within 120 ms, the function is executed for
another 120 ms from the moment.
6.2.4. When there is no incoming command after 120 ms, the execution of pipelining is stopped.
6.2.5. When the projector receives other incoming commands within 120ms, the execution of
pipelining is stopped.
6.3. Transfer Example
Switch the projector to video mode with Basic Command.
Command
PC →Projector C07CR
Projector →PC
ACK CR
Processing
（A few ms 〜5s）

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6.4. Operation Requirements
When the projector’s status in this below, Functional Execution Commands are limited.
Projector Status Available Functional Execution Commands
Standby Mode C00：POWER ON
Countdown in process
C00：POWER ON →Countdown is terminated
C01：POWER OFF
C02：POWER OFF →Countdown is terminated
C46：ZOOM -
C47：ZOOM +
C4A：FOCUS -
C4B：FOCUS +
C5D：LENS SHIFT UP
C5E：LENS SHIFT DOWN
C5F：LENS SHIFT LEFT
C60：LENS SHIFT RIGHT
Cooling Down in process NONE
Cooling Down due to Abnormal
Temperature NONE
Abnormal Temperature Status NONE
Power Save / Cooling Down
in process NONE
Power Save Status C00：POWER ON
C01：POWER OFF
Cooling Down after Power OFF due
to lamp failure NONE
Note) When the status is as above, even if the projector receives other commands,
it returns [ACK] [CR].

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6.5. POWER ON Command
Command “C00” [CR]
Detail
Power ON
When already Power is ON, nothing is done.
When sending this command during Countdown in process, Countdown is
terminated.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.6. POWER OFF Command （Quick Power OFF）
Command “C01” [CR]
Detail
Power OFF (Standby)
When Power is OFF with ON-OFF button of the projector and remote control,
“Power OFF?” is displayed. However, as soon as this command is sent, Quick
Power OFF is executed.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.7. POWER OFF Command
Command “C02” [CR]
Detail
Power OFF (Standby).
The command operates the same way Power OFF function as ON/STAND-BY
button of the projector and remote control.
Once this command is sent, “Power OFF?” is displayed. If this command is sent
again while it is displayed, Power OFF is executed.
When sending this command during Countdown, Countdown is terminated.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.8. INPUT 1 Command
Command “C05” [CR]
Detail
Select Input 1.
This command operates differently from “Input 1” key of the remote control. When
INPUT 1 is already selected, this command does not execute the source
switching. (Just for switching to Input 1)
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.9. INPUT 2 Command
Command “C06” [CR]
Detail
Select Input 2.
This command operates differently from “Input 2” key of the remote control. When
Input 2 is already selected, this command does not execute the source switching.
(Just for switching to Input 2)
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.10. INPUT 3 Command
Command “C07” [CR]
Detail
Select INPUT 3.
This command operates differently from “Input 3” key of the remote control. When
INPUT 3 is already selected, this command does not execute the source
switching. (Just for switching to Input 3)
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.11. NETWORK Command
Command “C08” [CR]
Detail Select Network Input
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.12. VOLUME + Command
Command “C09” [CR]
Detail Volume Up. This command operates the same way as VOLUME + button of the projector and
remote control.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.13. VOLUME – Command
Command “C0A” [CR]
Detail Volume Down This command operates the same way as VOLUME – button of the projector and
remote control.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.14. SOUND MUTE ON Command
Command “C0B” [CR]
Detail Sound Mute ON. This command works the same way as “MUTE” button of the remote control for
Mute ON, but does not work for Mute OFF.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.15. SOUND MUTE OFF Command
Command “C0C” [CR]
Detail Sound Mute OFF. This command works the same way as “MUTE” button of the remote control for
Mute OFF, but does not work for Mute ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.16. VIDEO MUTE ON Command
Command “C0D”[CR]
Detail Video Mute ON. This command works the same way as “NO SHOW” button of the remote control
for No Show ON, but does not work for No Show OFF.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.17. VIDEO MUTE OFF Command
Command “C0E” [CR]
Detail Video Mute OFF.
This command works the same way as “NO SHOW” button of remote control for
No Show OFF, but does not work for No Show ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.18. Screen Normal size Command
Command “C0F” [CR]
Detail Set screen size to Normal (4:3).
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.19. Screen Wide size Command
Command “C10” [CR]
Detail Set screen size to Wide (16:9).
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.20. MENU ON Command
Command “C1C” [CR]
Detail Display Menu of On Screen Display.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.21. MENU OFF Command
Command “C1D” [CR]
Detail Clear Menu of On Screen Display.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.22. DISPLAY CLEAR Command
Command “C1E” [CR]
Detail Clear On Screen Display.
Clear On Screen Display unconditionally.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.23. BRIGHTNESS + Command
Command “C20” [CR]
Detail Brightness of User Control +1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.24. BRIGHTNESS – Command
Command “C21” [CR]
Detail Brightness of User Control –1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.25. INPUT 2 VIDEO Command
Command C23[CR]
Detail Select Video input in Input 2.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.26. INPUT 2 Y,Pb/Cb,Pr/Cr Command
Command “C24” [CR]
Detail Select Y,Pb/Cb,Pr/Cr input in Input 2.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.27. INPUT 2 RGB Command
Command C25[CR]
Detail Select RGB input in Input 2.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.28. IMAGE Command
Command C27[CR]
Detail Switch Image Setting status.
This command operates the same way as “IMAGE” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.29. ON START Setting Command
Command “C28” [CR]
Detail Enable Power ON Start.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.30. ON START Cancel Command
Command “C29” [CR]
Detail Disable Power ON Start.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.31. Power Management Ready Command
Command “C2A” [CR]
Detail Set Power Management to Ready mode.
This status is stored in EEPROM and retained regardless of Power ON/OFF.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.32. Power Management OFF Command
Command “C2B” [CR]
Detail Set Power Management OFF.
This status is stored in EEPROM and retained regardless of Power ON/OFF.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.33. Power Management Shut down Command
Command “C2E” [CR]
Detail Set Power Management to Shut down mode.
This status is stored in EEPROM and retained regardless of Power OFF/ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.34. D.ZOOM + Command
Command “C30” [CR]
Detail Enter Digital Zoom mode and expand image size.
This command works the same way as “D.ZOOM ▲” button of the remote control.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.35. D.ZOOM – Command
Command “C31” [CR]
Detail Enter Digital Zoom mode and reduce image size.
This command works the same way as “D.ZOOM ▼” button of the remote control.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.36. INPUT 3 AUTO Command
Command “C32” [CR]
Detail SelectAuto input in Input 3.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.37. INPUT 3 VIDEO Command
Command “C33” [CR]
Detail Select Video input in Input 3.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.38. INPUT 3 S-VIDEO Command
Command “C34” [CR]
Detail Select S-video input in Input 3.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.39. POINTER RIGHT Command
Command “C3A” [CR]
Detail Move the Pointer of On-Screen Display to the right. This command differs from the operation of pointer “>” of the projector and has no
function of Volume +.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.40. POINTER LEFT Command
Command “C3B” [CR]
Detail Move the Pointer of On-Screen Display to the left. This command differs from the operation of pointer “<” of the projector and has no
function of Volume -.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.41. POINTER UP Command
Command “C3C” [CR]
Detail Move up the Pointer of On-Screen Display.
This command operates the same way as “▲” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.42. POINTER DOWN Command
Command “C3D” [CR]
Detail Move down the Pointer of On-Screen Display.
This command operates the same way as “▼” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.43. ENTER Command
Command “C3F” [CR]
Detail This command works the same way as “SELECT” button of the projector and
remote control.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.44. FREEZE ON Command
Command “C43” [CR]
Detail Freeze on-screen image.
This command works the same way as “FREEZE” button of the remote control for
Freeze ON, but does not work for Freeze OFF.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.45. FREEZE OFF Command
Command “C44” [CR]
Detail Cancel Freeze mode. This command works the same way as “FREEZE” button of the remote control for
Freeze OFF, but does not work for Freeze ON.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.46. ZOOM – Command
Command “C46” [CR]
Detail Reduce image size.
This command works the same way as “ZOOM▼” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.47. ZOOM + Command
Command “C47” [CR]
Detail Expand image size.
This command works the same way as “ZOOM▲” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.48. FOCUS - Command
Command “C4A” [CR]
Detail Adjust on-screen focus by making focal length shorter. (The lens moves forward)
This command works the same way as “FOCUS▲” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.49. FOCUS + Command
Command “C4B” [CR]
Detail Adjust on-screen focus by making focal length longer. (The lens moves backward)
This command works the same way as “FOCUS▲” button of the projector.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.50. INPUT 1 Analog RGB Command
Command “C50” [CR]
Detail SelectAnalog RGB input in Input 1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]

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6.51. INPUT 1 SCART Command
Command “C51” [CR]
Detail Select Scart input in Input 1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.52. INPUT 1 DVI (PC Digital) Command
Command “C52” [CR]
Detail Select DVI (PC Digital) input in Input 1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.53. INPUT 1 DVI (AV HDCP) Command
Command “C53” [CR]
Detail Select DVI (AV HDCP) input in Input 1.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.54. LENS SHIFT UP Command
Command “C5D” [CR]
Detail Move projection area upward.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.55. LENS SHIFT DOWN Command
Command “C5E” [CR]
Detail Move projection area downward.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]
6.56. LENS SHIFT LEFT Command
Command “C5F” [CR]
Detail Move projection area to the left.
Acceptable [ACK] [CR]
Response Unacceptable ？[CR]