Page 2 - Home Theater Standard 7.1
© 2002 by Krell Industries, Inc. All rights reserved P/N 306016 This product is manufactured in the United States of America. Krell ® is a registered trademark of Krell Industries, Inc., and is restricted for use by Krell Industries, Inc., its subsidiaries, and authorized agents.All other trademarks...
Page 3 - Overview; on page 4
Overview This document is designed for application developers who want to control the Home Theater Standard 7.1 using an external computer-based device. The document contains five sections: 1 Connecting to the RS-232 Port, including theRS-232 connector diagram, and RS-232 Port Protocols, on page 4 2...
Page 4 - Connecting to the RS-232 Port
4 Krell Home Theater Standard 7.1 Developer’s Reference Connecting to the RS-232 Port A 9-pin RS-232 port is located on the right-hand side of the HomeTheater Standard 7.1 back panel. Make sure the clamping screws(or thumbscrews) securely fasten the connection cable from theexternal computer-based d...
Page 5 - RS-232 Commands for the Home Theater Standard 7.1; COMMAND
Krell Home Theater Standard 7.1 Developer’s Reference 5 MENU COMMANDS AUTO-STATUSCOMMANDS GENERAL DEVICE SELECTCOMMANDS LEVEL COMMANDS RS-232 Commands for the Home Theater Standard 7.1 Up UPZ Down DWNZ Left LFTZ Right RGTZ Menu MENZ Enter ENTZ Previous PRVZ DVD Device Select 1 DVDZ LD Device Select ...
Page 6 - continued; Works on current; Note
Mute Current Zone MUTZ Mute Main Zone MUTMZ Mute Zone 2 MUTRZ Night Compression NTCZ Normal Compression NMCZ Max Compression MXCZ 7.1 Input select 2 AMCZ Analog Audio Input-1 2 AS1Z Analog Audio Input-2 2 AS2Z Analog Audio Input-3 2 AS3Z Analog Audio Input-4 2 AS4Z Analog Audio Input-5 2 AS5Z Analog...
Page 9 - * Refer to the list of audio decode modes and corresponding codes
Krell Home Theater Standard 7.1 Developer’s Reference 9 RS-232 Commands for the Home Theater Standard 7.1, continued DECODE MODE SELECTCOMMANDS Mode 1 MS1Z Mode 2 MS2Z Prologic MVZ Stereo STZ Preamp PAZ THX THXZ Audio Decode Set Mode 000 - 038, sets mode* XXXMODZ COMMAND RS-232 CODE * Refer to the l...
Page 10 - AUDIO DECODE MODE
10 Krell Home Theater Standard 7.1 RS-232 Commands for the Home Theater Standard 7.1, continued Audio decode modes and corresponding codes Dolby Digital 5.1 000 Dolby Digital 5.1 + THX 001 Dolby Digital 5.1 + THX EX 002 AC3 2/0 Stereo Mode (Pass Mode) 003 AC3 2/0 Pro-Logic II Movie Mode 004 AC3 2/0 ...
Page 11 - 600 Baud 8 Data Bits 1 Stop Bit No Parity; Word 1: Start of Message; Word 2: General Status I; The values marked
RS-232 Status Feedback Descriptionfor the Home Theater Standard 7.1 RS-232 Status Block Descriptionsfor the Home Theater Standard 7.1 The Home Theater Standard 7.1 reports its operational status by trans-mitting a block of status data via the RS-232 connector. The block isconfigured as eighteen 8-bi...
Page 12 - Word 6: Zone 2 Volume
RS-232 Status Block Descriptions, continued Word 3: General Status II Bit Description Bit 7: Menu mode 1 = Menu mode is active Bit 6: Auto Status 1 = Auto status enabled Bit 5: PLL Locked 1 = PLL is locked (valid digital input signal detected) Bit 4: Trigger 4 On 1 = Trigger 4 is on Bit 3: Trigger 3...
Page 13 - Word 9: Zone 2 Audio Input; Word 10: Loudspeakers / Current Audio Stream
RS-232 Status Block Descriptions, continued Word 8: Main Zone Audio Input Bit Description Bit 7 – 0: Main Zone Audio Input Audio Inputs 1 Digital: COAX 1 10 Analog: S1 2 Digital: COAX 2 11 Analog: S2 3 Digital: COAX 3 12 Analog: S3 4 Digital: COAX 4 13 Analog: S4 5 Digital: COAX 5 14 Analog: S5 6 Di...
Page 16 - Word 15: Surround Trim
16 Krell Home Theater Standard 7.1 Developer’s Reference RS-232 Status Block Descriptions, continued Word 14: Center Trim Bit Description Bits 4 – 0: Center Trim Trim Settings 0 -10 dB 10 0 dB 1 -9 dB 11 +1 dB 2 -8 dB 12 +2 dB 3 -7 dB 13 +3 dB 4 -6 dB 14 +4 dB 5 -5 dB 15 +5 dB 6 -4 dB 16 +6 dB 7 -3 ...
Page 17 - Word 18: End of Message
Krell Home Theater Standard 7.1 Developer’s Reference 17 RS-232 Status Block Descriptions, continued Word 17: Sub Trim Bit Description Bits 4 – 0: Sub Trim Trim Settings 0 -10 dB 7 -3 dB 14 +4 dB 1 -9 dB 8 -2 dB 15 +5 dB 2 -8 dB 9 -1 dB 16 +6 dB 3 -7 dB 10 0 dB 17 +7 dB 4 -6 dB 11 +1 dB 18 +8 dB 5 -...
Page 19 - **The SET MODE command allows the user to set a specific audio
Krell Home Theater Standard 7.1 Developer’s Reference 19 RC-5 Commands for the Home TheaterStandard 7.1, continued SYSTEM COMMAND SYSTEM COMMAND RC5 WORD HOME THEATER (HEX) (HEX) (DEC) (DEC) (HEX) STANDARD 7.1 19 5 25 5 3645 TV 19 6 25 6 3646 CD 19 7 25 7 3647 TUNER 19 8 25 8 3648 AUX1 19 9 25 9 364...