User manual MITSUBISHI SD105U CONTROL PROJECTOR BY USING A PERSONAL COMPUTER

[. . . ] 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' Function code Function Function Data code Data Data End code 0Dh [Address code] [Function code] [Data code] [End code] 30h 30h (In ASCII code, '0' '0') fixed. [. . . ] Keep intervals of at least 400 ms between receipt of a return command and sending of a next command. [Example] When turning the power ON (Figures and symbols enclosed in quotation marks are ASCII codes. ): Any commands will not be executed for 10 seconds after the power is turned on. Sending commands from the PC, etc. 30 30 21 0D '0' '0' '!' ' ' 30 30 21 0D '0' '0' '!' ' ' Command receipt confirmation (Command echo back) Status code from the projector Command for POWER ON Description · · · · 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 POWER OFF INPUT COMPUTER INPUT VIDEO INPUT S-VIDEO ASCII !" _r1 _v1 _v2 HEX 21h 22h 5Fh 5Fh 5Fh 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. This command will not be executed in Stand-by mode or the MUTE is executed. This command will not be executed in Stand-by mode or the MUTE is executed. This command will not be executed in Stand-by mode or the MUTE is executed. 72h 76h 76h 31h 31h 32h [Example] When setting the input signal to COMPUTER (Figures and symbols enclosed in quotation marks are ASCII codes. ): Status code from the projector Command for setting the input 30 30 5F 72 31 0D '0' '0' '_' 'r' '1' ' ' signal to COMPUTER Command receipt confirmation (Command echo back) Description Sending commands from the PC, etc. 30 30 5F 72 31 0D '0' '0' '_' 'r' '1' ' ' 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. ITEM VOLUME ASCII VL HEX 56h 4Ch VALUE 000 - 100 How to set the grade Use the ASCII codes to set the grade for setting data. Please refer to the table below for the HEX code. ASCII '0' '1' '2' '3' '4' '5' '6' '7' '8' '9' HEX 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. ): Status code from the projector Command for setting the volume 30 30 56 4C 30 31 35 0D '0' '0' 'V' 'L' '0' '1' '5' ' ' Command receipt confirmation (Command echo back) Description Sending commands from the PC, etc. 30 30 56 4C 30 31 35 0D '0' '0' 'V' 'L' '0' '1' '5' ' ' 2 6) Keystone commands (Not executable in stand-by mode. [. . . ] can be monitored. ASCII Function Data (Receive) vP 1 vI r1 vI v1 vI v2 vLE hhhhmm HEX Function Data (Receive) 50h 31h 49h 72h 31h 49h 76h 31h 49h 76h 32h 4Ch 45h hhhhmm POWER ON INPUT COMPUTER INPUT VIDEO INPUT S-VIDEO LAMP OPERATING TIME (on a LOW mode basis) 76h 76h 76h 76h 76h The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to the received command it's current operating status as the data code and send it back to the PC. (LAMP OPERATING TIME: "h" and "m" represent hour and minute respectively. [. . . ]