THE LEADER IN AUDIO ENGINEERING Home Theater Standard 7.
Home Theater Standard 7.1 Surround Preamp/Processor Developer’s Reference v 03.0 CONTACT INFORMATION Krell Industries, Inc. 45 Connair Road Orange, CT 06477-3650 USA TEL 203-799-9954 FAX 203-891-2028 E-MAIL krell@krellonline.com WEBSITE http://www.krellonline.com 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.
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 the RS-232 connector diagram, and RS-232 Port Protocols, on page 4 2 RS-232 Commands, on page 5 3 RS-232 Status Feedback Description, on page 11 4 RS-232 Status Block Descriptions, showing how the Home Theater Standard 7.
Connecting to the RS-232 Port A 9-pin RS-232 port is located on the right-hand side of the Home Theater Standard 7.1 back panel. Make sure the clamping screws (or thumbscrews) securely fasten the connection cable from the external computer-based device to the RS-232 port on the Home Theater Standard 7.1. Refer to the operating manual of your external computer-based device for instructions on connecting to the Home Theater Standard 7.1.
RS-232 Commands for the Home Theater Standard 7.
RS-232 Commands for the Home Theater Standard 7.1, continued COMMAND RS-232 CODE Level Commands, continued Mute Current Zone Mute Main Zone Mute Zone 2 Night Compression Normal Compression Max Compression GENERIC ZONE DIRECT SELECT COMMANDS 7.
RS-232 Commands for the Home Theater Standard 7.1, continued COMMAND MAIN ZONE DIRECT SELECT COMMANDS (Main zone must be on) ZONE 2 DIRECT SELECT COMMANDS Note Use Zone 2 Direct Select Commands only when both zones are on.
RS-232 Commands for the Home Theater Standard 7.
RS-232 Commands for the Home Theater Standard 7.1, continued COMMAND DECODE MODE SELECT COMMANDS Mode 1 Mode 2 Prologic Stereo Preamp THX Audio Decode Set Mode RS-232 CODE 000 - 038, sets mode* MS1Z MS2Z MVZ STZ PAZ THXZ XXXMODZ * Refer to the list of audio decode modes and corresponding codes on page 10 to set the mode. Modes that do not apply to the current input stream are ignored. Krell Home Theater Standard 7.
RS-232 Commands for the Home Theater Standard 7.1, continued Audio decode modes and corresponding codes 10 AUDIO DECODE MODE CODE Dolby Digital 5.1 Dolby Digital 5.1 + THX Dolby Digital 5.1 + THX EX AC3 2/0 Stereo Mode (Pass Mode) AC3 2/0 Pro-Logic II Movie Mode AC3 2/0 Pro-Logic II Music Mode AC3 2/0 Pro-Logic II Matrix Mode AC3 2/0 Pro-Logic II Emulation Mode AC3 2/0 Pro-Logic II Movie +THX Mode AC3 2/0 Pro-Logic II Emulation+THX Mode DTS 5.1 Music DTS 5.1 Movie DTS 5.1 Matrix DTS 5.
RS-232 Status Feedback Description for the Home Theater Standard 7.1 The Home Theater Standard 7.1 reports its operational status by transmitting a block of status data via the RS-232 connector. The block is configured as eighteen 8-bit words. The first and last word always contains hexadecimal code 55 to facilitate message framing and synchronization. When the data block is sent through an RS-232 port, each 8-bit word transmitted will also have 1 stop bit associated with it.
RS-232 Status Block Descriptions, continued Word 3: General Status II Bit Description 7 6 5 4 3 2 1 0 Menu Mode Auto Status Enabled PLL Locked Trigger 4 On Trigger 3 On Trigger 2 On Trigger 1 On DSP Running Bit Bit Bit Bit Bit Bit Bit Bit 7: 6: 5: 4: 3: 2: 1: 0: Menu mode Auto Status PLL Locked Trigger 4 On Trigger 3 On Trigger 2 On Trigger 1 On DSP Running 1 1 1 1 1 1 1 1 = Menu mode is active = Auto status enabled = PLL is locked (valid digital input signal detected) = Trigger 4 is o
RS-232 Status Block Descriptions, continued Word 8: Main Zone Audio Input Bit Description 7 MN AUD IN 7 Bit 7 – 0: 6 MN AUD IN 6 5 MN AUD IN 5 4 MN AUD IN 4 3 MN AUD IN 3 2 MN AUD IN 2 1 MN AUD IN 1 0 MN AUD IN 0 Main Zone Audio Input Audio Inputs 1 Digital: COAX 1 2 Digital: COAX 2 3 Digital: COAX 3 4 Digital: COAX 4 5 Digital: COAX 5 6 Digital: COAX 6 7 Digital: Optical 1 8 Digital: Optical 2 9 Analog: B1 10 11 12 13 14 15 16 17 18 Analog: S1 Analog: S2 Analog: S3 Analog: S4 Analog: S5 Analo
RS-232 Status Block Descriptions, continued Word 11: Current Audio Decode Modes Bit Description 7 6 5 4 3 2 1 0 CAD 7 CAD 6 CAD 5 CAD 4 CAD 3 CAD 2 CAD 1 CAD 0 Bit 7 – 0: 14 Current Audio Decode Modes Analog and PCM Decode Modes 1 Stereo Mode (Pass Mode) 2 Pro-Logic II Movie Mode 3 Pro-Logic II Music Mode 4 Pro-Logic II Matrix Mode 5 Pro-Logic II Emulation Mode 6 Pro-Logic II Movie + THX Mode 7 Multichannel Input Mode 8 Pro-Logic II Emulation + THX Mode 9 DTS Neo:6 Cinema 6 Mode 11 DTS
RS-232 Status Block Descriptions, continued Word 12: Main Zone Balance/Compression Mode Bit Description 7 6 5 4 3 2 1 0 Reserved CMode 1 CMode 0 BAL 4 BAL 3 BAL 2 BAL 1 BAL 0 Bits 4 - 0: Bits 5 – 6: Balance Setting 0 – 26 Compression Mode Balance Settings 0 Right Off 1 Left +6 2 Left +5.5 3 Left +5.0 4 Left +4.5 5 Left +4.0 6 Left +3.5 7 Left +3.0 8 Left +2.5 9 10 11 12 13 14 15 16 17 Compression Modes 1 Max 2 Left +2.0 Left +1.5 Left +1.0 Left +0.5 Centered 0 Right +0.5 Right +1.
RS-232 Status Block Descriptions, continued Word 14: Center Trim Bit Description 7 6 5 4 3 2 1 0 Reserved Reserved Reserved CT 4 CT 3 CT 2 CT 1 CT 0 4 RT 4 3 RT 3 2 RT 2 1 RT 1 0 RT 0 Bits 4 – 0: Center Trim Trim Settings 0 -10 dB 1 -9 dB 2 -8 dB 3 -7 dB 4 -6 dB 5 -5 dB 6 -4 dB 7 -3 dB 8 -2 dB 9 -1 dB 10 0 11 +1 12 +2 13 +3 14 +4 15 +5 16 +6 17 +7 18 +8 19 +9 20 +10 dB dB dB dB dB dB dB dB dB dB dB Word 15: Surround Trim Bit Description 7 Mode 1/2 LED Status 6 Reserved 5 Reser
RS-232 Status Block Descriptions, continued Word 17: Sub Trim Bit Description 7 6 5 4 3 2 1 0 Reserved Reserved Reserved ST 4 ST 3 ST 2 ST 1 ST 0 Bits 4 – 0: Sub Trim Trim Settings 0 -10 dB 1 -9 dB 2 -8 dB 3 -7 dB 4 -6 dB 5 -5 dB 6 -4 dB 7 -3 dB 8 -2 dB 9 -1 dB 10 0 dB 11 +1 dB 12 +2 dB 13 +3 dB 14 +4 15 +5 16 +6 17 +7 18 +8 19 +9 20 +10 dB dB dB dB dB dB dB Word 18: End of Message Bit 7 6 5 4 3 2 1 0 Description 0 1 0 1 0 1 0 1 Bit 7 – 0: Hexadecimal 55 Krell Home T
RC-5 Commands for the Home Theater Standard 7.1 The following codes are used for controlling the Home Theater Standard 7.1 via IR.
RC-5 Commands for the Home Theater Standard 7.
RC-5 Commands for the Home Theater Standard 7.1, continued Audio decode modes and corresponding codes 20 AUDIO DECODE MODE CODE Dolby Digital 5.1 Dolby Digital 5.1 + THX Dolby Digital 5.1 + THX EX AC3 2/0 Stereo Mode (Pass Mode) AC3 2/0 Pro-Logic II Movie Mode AC3 2/0 Pro-Logic II Music Mode AC3 2/0 Pro-Logic II Matrix Mode AC3 2/0 Pro-Logic II Emulation Mode AC3 2/0 Pro-Logic II Movie +THX Mode AC3 2/0 Pro-Logic II Emulation+THX Mode DTS 5.1 Music DTS 5.1 Movie DTS 5.1 Matrix DTS 5.1 Movie + THX DTS 5.
