Onkyo DTR 5.2 RS 232 Service Manual

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2 1. CONTROL INTERFACE OVERVIEW ..................................3 1.1.Hardware Overview ...........................................3 1.2.Message Overview ............................................3 Receive Message Format........................................3 Send Message Format...........................................3 Special Character.............................................3 2.1.Command Communication .......................................4 2.2.Question Communication ......................................4 2.3.Event Notice Communication ..................................4 3.COMMAND DESCRIPTIONS ...........................................5 3.1.System Power Command "PWR" ..................................5 3.2.Audio Muting Command "AMT" ..................................5 3.3.Speaker A/B Command "SPA"/SPB ...........................5 3.4.Master Volume Command "MVL" .................................5 3.5.Input Selector Command "SLI" ................................6 3.6.Listening Mode Command "LMD" ................................7 3.7.Late Night Command "LTN" ....................................7 3.8.Re-EQ Command "RAS" .........................................7 3.9.Tuning Command "TUN" ........................................8 3.10.Preset Command "PRS" .......................................8 3.11.Display Mode Command "DIF" .................................9 3.12.Dimmer Level Command "DIM" .................................9 3.13.Setup Operation Command "OSD" ..............................9 3.14.CD Player Operation Command CCD .......................10 3.15.TAPE1(A) Operation Command "CT1" ..........................11 3.16.TAPE2(B) Operation Command "CT2" ..........................11 3.17.Graphics Equalizer Operation Command "CEQ" ................11 3.18.DAT Recorder Operation Command "CDT" ......................12 3.19.DVD Player Operation Command "CDV" ........................12 3.20.MD Recorder Operation Command "CMD" .......................14 3.21.CD-R Recorder Operation Command "CCR" .....................15

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3 1. CONTROL INTERFACE OVERVIEW The manual for the DTR-5.2 should also be used with this document to understand how this protocol can be used the DTR-5.2. 1.1.Hardware Overview ･ 3 wire RS-232C protocol ･ 9 pin female D type connector pin 2 = transmit, pin 3 = receive, pin 5 = signal ground ･ Communication Parameters 9600 baud ,8 data bits ,1 stop bit no parity ,no xon/xoff 1.2.Message Overview Receive Message Format Note : The Interval Time Receiving the message need to take more than 50msec. Send Message Format Special Character [CR] Carridge Return Ascii Code 0x0D [LF] Line Feed Ascii Code 0x0A [EOF] End Of File Ascii Code 0x1A 1st 2nd 3rd-5th 6th- last !1PWRQSTN[CR] "[CR]"or"[LF]" or"[CR][LF]" Start Character Send to AV Reciever Character Command Characters Parameter Characters End Character 1st 2nd 3rd-5th 6th- last !1PWR00[EOF] Start Character Send to AV Reciever Character Command Characters Parameter Characters End Character

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4 2.COMMUNICATION FLOW DESCRIPTION The DTR-5.2 uses Question, Command and Notification messages to have to communicate with a given HOST. This protocol is designed for point to point communication between a HOST and the DTR-5.2. 2.1.Command Communication Send a "Command Message" to the DTR-5.2 from the HOST to change the system status. The DTR-5.2 will respond with a status message within 50msec. If DTR-5.2 does not respond within 50msec, the communication has failed. 2.2.Question Communication Send a "Question Message" to the DTR-5.2 from the HOST to get the current system status. The DTR-5.2 will respond with a status message. 2.3.Event Notice Communication If user change the system status, the DTR-5.2 will notify the HOST by sending the new current status. Command Message "!1SLI03[CR]" Status Message "!1SLI03[EOF]" R eceiver HO ST/Controller Question Message "!1SLIQSTN[CR]" Status Message "!1SLI03[EOF]" HO ST/Controller R eceiver Status Message "!1SLI03[EOF]" R eceiver HO ST/Controller

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7 3.6.Listening Mode Command "LMD" Commands to set or get the listening mode status. Parameter List (Characters/Means) : "00" sets STEREO "01" sets DIRECT "02" sets SURROUND "08" sets ORCHESTRA "09" sets UNPLUGGED "0A" sets STUDIO-MIX "0B" sets TV LOGIC "0C" sets ALL CH STEREO "UP" sets Listening Mode Wrap-Around Up "DOWN" sets Listening Mode Wrap-Around Down "QSTN" gets The Listening Mode 3.7.Late Night Command "LTN" Commands to set or get the late night with the parameter In this message. Parameter List (Characters/Means) : "00" sets Late Night Off "01" sets Late Night Low "02" sets Late Night High "UP" sets Late Night State Wrap-Around Up "QSTN" gets The Late Night Level 3.8.Re-EQ Command "RAS" Commands to set or get the Re-EQ status. Parameter List (Characters/Means) : "00" sets Re-EQ Off "01" sets Re-EQ On "UP" sets Re-EQ State Wrap-Around Up "QSTN" gets The Re-EQ State