Home Theater
Standard 7.1
Surround
THE LEADER IN AUDIO ENGINEERING
Preamp/Processor
RS-232 Port: Sending Commands
and Interpreting Data
RC-5 Remote: Commands
Developer’s Reference
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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
3
4
RS-232 Commands, on page 5
RS-232 Status Feedback Description, on page 11
RS-232 Status Block Descriptions, showing how the
Home Theater Standard 7.1 reports operational
status, on page 11
5
RC-5 Commands, describing the codes used for
controlling the Home Theater Standard 7.1 via IR,
on page 18.
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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.
WIRING THE MALE
RS-232 PORT
CONNECTOR
To wire the male connector, follow these steps:
1. Locate the pin numbers on the male connector plug
(not shown).
2. Locate the pinout numbers on the female connector.
(See Pinout Signal list below).
3. Wire the male connector, matching the pin numbers on
the connector plug to the pinout numbers on the female
connector. Only three signals are necessary: 2=Received
Data, 3=Transmitted Data, and 5=Signal Ground.
RS-232 PORT
FEMALE CONNECTOR
(located on the back panel
of the Home Theater Standard 7.1)
5 4 3 2 1
Pinout Signal
1
2
3
4
Data Carrier Detect
Received Data
Transmitted Data
Data Terminal
Ready
5
6
7
8
9
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
9 8 7 6
RS-232 Port Protocols
The Home Theater Standard 7.1 RS-232 connection port is set to
the following protocols:
9600 Baud
8 Data Bits
1 Stop Bit
No Parity
4
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RS-232 Commands for the Home Theater Standard 7.1
COMMAND
RS-232 CODE
MENU
COMMANDS
Up
UPZ
DWNZ
LFTZ
Down
Left
Right
Menu
Enter
Previous
RGTZ
MENZ
ENTZ
PRVZ
AUTO-STATUS
COMMANDS
Disable Auto Status
Enable Auto Status
Get Status
ASTDZ
ASTEZ
STAZ
DVD Device Select1
LD Device Select1
Satellite Device Select1
VCR Device Select1
TV Device Select1
DVDZ
LDZ
GENERAL
DEVICE SELECT
COMMANDS
SATZ
VCRZ
TVZ
CD Device Select1
Tuner Device Select1
Aux1 Device Select1
Aux 2 Device Select1
Tape Monitor Select1
CDZ
TUNZ
AU1Z
AU2Z
TPZ
LEVEL
COMMANDS
Up
UPZ
DWNZ
Down
Main Speaker Volume
000 - 152
XXXMVLZ
XXXRVLZ
Zone 2 Speaker Volume
Center Trim Select
000 - 152
then use UPZ and DWNZ
must be on main zone
then use UPZ and DWNZ
send twice for Back Trim Select
must be on main zone
then use UPZ and DWNZ
must be on main zone
000 - 020, sets -10 to +10 dB
ICVLZ
Surround Trim Select
Sub Trim Select
IRVLZ
ISUBZ
XXXCVLZ
Center Speaker Trim
Surround Speaker Trim
Back Speaker Trim
Subwoofer Trim
000 - 020, sets -10 to +10 dB
000 - 020, sets -10 to +10 dB
000 - 020, sets -10 to +10 dB
XXXSRLZ
XXXBVLZ
XXXSVLZ
IBALZ
Current Zone Balance Select then use UPZ and DWNZ
Balance
000 -026, sets right off, left +6,
through right +6, left off 1/2 dB steps XXBALZ
then use UPZ and DWNZ BRLZ
Zone 2 Balance
1
The General Device Select Command is the best choice for normal operation: It always functions on the
currently selected zone and engages any configurations set through the Home Theater Standard 7.1 menu.
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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
MUTZ
MUTMZ
MUTRZ
NTCZ
Night Compression
Normal Compression
Max Compression
NMCZ
MXCZ
7.1 Input select2
AMCZ
AS1Z
AS2Z
AS3Z
AS4Z
AS5Z
AS6Z
AS7Z
AB1Z
ATPAZ
AVCAZ
CO1Z
CO2Z
CO3Z
CO4Z
CO5Z
CO6Z
OPT1Z
OPT2Z
CM1Z
CM2Z
CS1Z
CS2Z
CS3Z
CS4Z
SV1Z
SV2Z
SV3Z
SV4Z
GENERIC ZONE
DIRECT SELECT
COMMANDS
Analog Audio Input-12
Analog Audio Input-22
Analog Audio Input-32
Analog Audio Input-42
Analog Audio Input-52
Analog Audio Input-62
Analog Audio Input-72
Analog Balanced Input2
Analog Tape Select2
(Works on current
zone)
Note
It is best to use the Home
Theater Standard 7.1
Analog VCR Select2
Coax-1 Digital Audio Input Select2
Coax-2 Digital Audio Input Select2
Coax-3 Digital Audio Input Select2
Coax-4 Digital Audio Input Select2
Coax-5 Digital Audio Input Select2
Coax-6 Digital Audio Input Select2
Optical-1 Digital Audio Input Select2
Optical-2 Digital Audio Input Select2
Component Video-12
Component Video-22
Composite Video-12
Composite Video-22
Composite Video-32
on-screen configuration
menus, not the Generic
Direct Select Command,
to configure a particular
device. Please see the Home
Theater Standard 7.1
Owner’s Reference for
configuration details.
Composite Video-42
S-Video-12
S-Video-22
S-Video-32
S-Video-42
2
Direct Select Commands override the configurations set through the Home Theater Standard 7.1
configuration menus.
6
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RS-232 Commands for the Home Theater Standard 7.1, continued
COMMAND
RS-232 CODE
MAIN ZONE
DIRECT SELECT
COMMANDS
Main Analog Audio Input-1
Main Analog Audio Input-2
Main Analog Audio Input-3
Main Analog Audio Input-4
Main Analog Audio Input-5
Main Analog Audio Input-6
Main Analog Audio Input-7
Main Analog Balanced Input
Main Analog Tape Select
Main Analog VCR Select
Main Aux1 Device Select
Main Aux2 Device Select
Main CD Device Select
Main DVD Device Select
Main LD Device Select
AS1MZ
AS2MZ
AS3MZ
AS4MZ
AS5MZ
AS6MZ
AS7MZ
AB1MZ
TPAMZ
VCAMZ
AU1MZ
AU2MZ
CDMZ
(Main zone
must be on)
DVDMZ
LDMZ
Main Satellite Device Select
Main Tape Device Select
Main Tuner Device Select
Main TV Device Select
SATMZ
TPMZ
TUNMZ
TVMZ
Main VCR Device Select
VCRMZ
Zone 2 Analog Audio Input-13
Zone 2 Analog Audio Input-23
Zone 2 Analog Audio Input-33
Zone 2 Analog Audio Input-43
Zone 2 Analog Audio Input-53
Zone 2 Analog Audio Input-63
Zone 2 Analog Audio Input-73
Zone 2 Analog Balanced Input3AB1RZ
Zone 2 Analog Tape Select3
Zone 2 Analog VCR Select3
Zone 2 Aux1
AS1RZ
AS2RZ
AS3RZ
AS4RZ
AS5RZ
AS6RZ
AS7RZ
ZONE 2 DIRECT
SELECT COMMANDS
Note
Use Zone 2 Direct Select
Commands only when both
zones are on.
TPARZ
VCARZ
AU1RZ
AU2RZ
CDRZ
Zone 2 Aux2
Zone 2 CD
Zone 2 DVD
DVDRZ
LDRZ
Zone 2 LD
Zone 2 Satellite
SATRZ
TPRZ
Zone 2 Tape
Zone 2 Tuner
TUNRZ
TVRZ
Zone 2 TV
Zone 2 VCR
VCRRZ
3
If only zone 2 is on, use instead the Generic Zone Direct Select Commands, on page 6.
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RS-232 Commands for the Home Theater Standard 7.1, continued
COMMAND
RS-232 CODE
POWER
COMMANDS
Power On
Power Off
1PWRZ
0PWRZ
ZONE SELECT
COMMANDS
Main Zone
Zone 2
MANZ
REMZ
Zone 2 power toggle
if main zone Is OFF
ROOM EQ
COMMAND
Room EQ Select
XXX = 000-004 (000 = OFF)
(001-004 selects memory 1-4)
XXXEQMZ
TRIGGER
COMMANDS
Trigger-1
Trigger-1
Trigger-2
Trigger-2
Trigger-3
Trigger-3
Trigger-4
Trigger-4
OFF
ON
0TR1Z
1TRIZ
0TR2Z
1TR2Z
0TR3Z
1TR3Z
0TR4Z
1TR4Z
OFF
ON
OFF
ON
OFF
ON
8
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RS-232 Commands for the Home Theater Standard 7.1, continued
COMMAND
RS-232 CODE
DECODE MODE SELECT
COMMANDS
Mode 1
MS1Z
MS2Z
Mode 2
Prologic
MVZ
Stereo
STZ
Preamp
PAZ
THX
THXZ
Audio Decode Set Mode
000 - 038, sets mode*
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.
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RS-232 Commands for the Home Theater Standard 7.1, continued
Audio decode modes
AUDIO DECODE MODE
CODE
and corresponding codes
Dolby Digital 5.1
000
001
002
003
004
005
006
007
008
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 009
DTS 5.1 Music
010
011
012
013
014
015
016
017
018
019
020
021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
038
DTS 5.1 Movie
DTS 5.1 Matrix
DTS 5.1 Movie + THX
DTS 5.1 Matrix + THX
DTS 6.1 Discrete
DTS 6.1 Discrete + THX
DTS 5.1 Force
Stereo Mode (Pass Mode)
Pro-Logic II Movie Mode
Pro-Logic II Music Mode
Pro-Logic II Matrix Mode
Pro-Logic II Emulation Mode
Pro-Logic II Movie + THX Mode
Pro-Logic II Emulation + THX
DTS Neo:6 Cinema 6 Mode
DTS Neo:6 Music Mode
DTS Neo:6 Cinema 6 + THX Mode
Party Mode
General Admission Mode
Front Row Mode
On Stage Mode
Enhanced Stereo Mode
Orchestra Mode
Mezzanine Mode
Full Range + Sub Mode
Monophonic Mode
24/96 Decode Mode
10
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RS-232 Status Feedback Description
for 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 is
configured as eighteen 8-bit words. The first and last word always con-
tains hexadecimal code 55 to facilitate message framing and synchro-
nization. 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. The
exact RS-232 protocol settings for both status and Home Theater
Standard 7.1 control are as follows:
9600 Baud
8 Data Bits
1 Stop Bit
No Parity
The feedback system is available only through the RS-232 connector.
The status can be activated in two ways. The first is to ask for status to
be sent by sending the RS-232 command code "STAZ". The second is
to enable auto status by sending the RS-232 command code "ASTEZ".
Once the auto status command is sent, the Home Theater Standard 7.1
will transmit a status block whenever the status changes. Auto status is
disabled by sending the RS-232 command code "ASTDZ". Auto status
remains enabled until AC power is removed or turned off. When AC
power is reapplied, auto status is disabled.
RS-232 Status Block Descriptions
for the Home Theater Standard 7.1
All numeric values described in the following charts are decimal values
unless otherwise noted. The description of the eighteen 8-bit words
follow.
The values marked Reserved must be ignored during pattern matching.
Word 1: Start of Message
Bit
7
0
6
1
5
0
4
1
3
0
2
1
1
0
0
1
Description
Bit 7 – 0: Hexadecimal 55
Word 2: General Status I
7
6
5
4
3
2
1
0
Bit
System Mute
User Mute
Zone 2 Mute
Current Zone
Input Trigger
Zone 2 Only Zone 2 Power Main Power
Description
Bit 7: System Mute 1 = Internal mute is active
Bit 6: Main Mute 1 = Main mute is active
Bit 5: Zone 2 Mute 1 = Zone 2 mute is active
Bit 4: Current Zone 1 = Zone 2 is active
Bit 3: Input Trigger 1 = 12V input trigger is active
Bit 2: Zone 2 Only 1 = Only Zone 2 power is on
Bit 1: Zone 2 Power 1 = Zone 2 power is on
Bit 0: Main Power
1 = Main power is on
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RS-232 Status Block Descriptions, continued
Word 3: General Status II
Bit
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
Description
Bit 7: Menu mode
Bit 6: Auto Status
Bit 5: PLL Locked
1 = Menu mode is active
1 = Auto status enabled
1 = PLL is locked (valid digital input signal detected)
Bit 4: Trigger 4 On 1 = Trigger 4 is on
Bit 3: Trigger 3 On 1 = Trigger 3 is on
Bit 2: Trigger 2 On 1 = Trigger 2 is on
Bit 1: Trigger 1 On 1 = Trigger 1 is on
Bit 0: DSP Running 1 = DSPs are not reset
Word 4: Current Device
Bit
7
6
5
4
3
2
1
0
Description
Z2 CD3
Z2 CD2
Z2 CD1
Z2 CD0
MN CD3
MN CD2
MN CD1
MN CD0
Bits 7 – 4: Zone 2 Current Device
Bits 3 – 0: Main Zone Current Device
Devices
0
1
2
3
4
DVD
LD
SAT
VCR
TV
5
6
7
8
9
CD
TUNER
AUX 1
AUX 2
TAPE
Word 5: Volume
Bit
7
6
5
4
3
2
1
0
Description
V0L 7
V0L 6
V0L 5
V0L 4
V0L 3
V0L 2
V0L 1
V0L 0
Bit 7 – 0: Current Volume setting 0 – 152
Word 6: Zone 2 Volume
7
6
5
4
3
2
1
0
Bit
VOL 7
VOL 6
VOL 5
VOL 4
VOL 3
VOL 2
VOL 1
VOL 0
Description
Bit 7 – 0: Current Zone 2 Volume setting 0 – 152
Word 7: Video Input
Bit
7
6
5
4
3
2
1
0
Description
VID IN 7
VID IN 6
VID IN 5
VID IN 4
VID IN 3
VID IN 2
VID IN 1
VID IN 0
Bit 7 – 0: Current Video Input
Video Inputs
1
2
3
4
5
6
S-Video 1
S-Video 2
S-Video 3
S-Video 4
Component Video 1
Component Video 2
7
8
9
Reserved
Composite Video 1
Composite Video 2
10 Composite Video 3
11 Composite Video 4
12
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RS-232 Status Block Descriptions, continued
Word 8: Main Zone Audio Input
Bit
7
6
5
4
3
2
1
0
MN AUD
IN 7
MN AUD
IN 6
MN AUD
IN 5
MN AUD
IN 4
MN AUD
IN 3
MN AUD
IN 2
MN AUD
IN 1
MN AUD
IN 0
Description
Bit 7 – 0: Main Zone Audio Input
Audio Inputs
1
2
3
4
5
6
7
8
9
Digital: COAX 1
Digital: COAX 2
Digital: COAX 3
Digital: COAX 4
Digital: COAX 5
Digital: COAX 6
Digital: Optical 1
Digital: Optical 2
Analog: B1
10 Analog: S1
11 Analog: S2
12 Analog: S3
13 Analog: S4
14 Analog: S5
15 Analog: S6
16 Analog: S7
17 Analog: Tape
18 Analog: VCR
Word 9: Zone 2 Audio Input
7
6
5
4
3
2
1
0
Bit
Z2 AUD IN 7 Z2 AUD IN 6
Z2 AUD IN 5
Z2 AUD IN 4
Z2 AUD IN 3
Z2 AUD IN 2
Z2 AUD IN 1
Z2 AUD IN 0
Description
Bit 7 – 0: Zone 2 Audio Input
Audio Inputs
1
2
3
4
5
6
7
8
9
Digital: COAX 1
Digital: COAX 2
Digital: COAX 3
Digital: COAX 4
Digital: COAX 5
Digital: COAX 6
Digital: Optical 1
Digital: Optical 2
Analog: B1
10 Analog: S1
11 Analog: S2
12 Analog: S3
13 Analog: S4
14 Analog: S5
15 Analog: S6
16 Analog: S7
17 Analog: Tape
18 Analog: VCR
Word 10: Loudspeakers / Current Audio Stream
Bit
7
Back
Enabled
6
Sub
Enabled
5
4
3
2
1
0
Surround
Enabled
Center
Enabled
Input Stream 3 Input Stream 2 Input Stream 1 Input Stream 0
Description
Bit 7:
Back Enabled
Sub Enabled
1 = Back loudspeaker(s) is(are) enabled
1 = Subwoofer is enabled
Bit 6:
Bit 5:
Bit 4:
Surround Enabled 1 = Surround loudspeakers are enabled
Center Enabled 1 = Center loudspeaker is enabled
Bits 3–0: Current Input
Stream Mode
Input Stream Modes
1
2
3
4
5
6
PCM
7
8
9
PCM Analog Input
Dolby Digital X/Y
7.1 (8 Channel discrete)
Dolby Digital 2.0
Dolby Digital 5.1
DTS 5.1
24-bit, 96 KHz PCM
PCM Digital Input
10 DTS 6.1 ES Matrix
11 DTS 6.1 ES Discrete
12 DTS 6.1 ES Matrix & Discrete
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RS-232 Status Block Descriptions, continued
Word 11: Current Audio Decode Modes
Bit
7
6
5
4
3
2
1
0
Description
CAD 7
CAD 6
CAD 5
CAD 4
CAD 3
CAD 2
CAD 1
CAD 0
Bit 7 – 0: Current Audio Decode Modes
Analog and PCM Decode Modes
Dolby AC3, 5/1 Modes
1
2
3
4
5
6
7
8
9
Stereo Mode (Pass Mode)
Pro-Logic II Movie Mode
Pro-Logic II Music Mode
47 Dolby Digital 5.1
48 Dolby Digital 5.1 + THX
49 Dolby Digital 5.1 + THX EX
Pro-Logic II Matrix Mode
Dolby AC3, X/Y Modes
65 Dolby Digital 1+1
66 Dolby Digital 1/0
67 Dolby Digital 3/0
68 Dolby Digital 2/1
69 Dolby Digital 3/1
70 Dolby Digital 2/2
Pro-Logic II Emulation Mode
Pro-Logic II Movie + THX Mode
Multichannel Input Mode
Pro-Logic II Emulation + THX Mode
DTS Neo:6 Cinema 6 Mode
11 DTS Neo:6 Music Mode
12 DTS Neo:6 Cinema 6 + THX Mode
13 Noise Mode
14 Classical Mode
15 General Admission Mode
16 Front Row Mode
DTS Modes
50 DTS 5.1 Movie
51 DTS 5.1 Matrix
52 DTS 5.1 Movie + THX
53 DTS 5.1 Music
17 On Stage Mode
54 DTS 5.1 Matrix + THX
55 DTS 6.1 Discrete
56 DTS 6.1 Discrete + THX
57 DTS 5.1 Force
18 Enhanced Stereo Mode
19 Orchestra Mode
20 Mezzanine Mode
21 Full Range + Sub Mode
22 Monophonic Mode
23 Analog-only Preamp Mode
24-bit, 96 KHz Modes
10 PCM 24-bit, 96 KHz
Dolby AC3, 2/0 Modes
7.1 (8 Channel Discrete Input) Modes
7.1
24 Stereo Mode (Pass Mode)
25 Pro-Logic II Movie Mode
26 Pro-Logic II Music Mode
27 Pro-Logic II Matrix Mode
28 Pro-Logic II Emulation Mode
29 Pro-Logic II Movie + THX Mode
30 Pro-Logic II Matrix + THX Mode
31 Pro-Logic II Emulation + THX Mode
32 was DTS Neo:6 Cinema 6 Mode
33 was DTS Neo:6 Cinema 5 Mode
34 was DTS Neo:6 Music Mode
35 was DTS Neo:6 Cinema 6 + THX Mode
36 was DTS Neo:6 Cinema 5 + THX Mode
37 Party Mode
7
38 General Admission Mode
39 Front Row Mode
40 On Stage Mode
41 Enhanced Stereo Mode
42 Orchestra Mode
43 Mezzanine Mode
44 Full Range + Sub Mode
45 Monophonic Mode
46 Analog-only Preamp Mode
14
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RS-232 Status Block Descriptions, continued
Word 12: Main Zone Balance/Compression Mode
Bit
7
6
5
4
3
2
1
0
Reserved
CMode 1
CMode 0
BAL 4
BAL 3
BAL 2
BAL 1
BAL 0
Description
Bits 4 - 0: Balance Setting 0 – 26
Bits 5 – 6: Compression Mode
Balance Settings
0
1
2
3
4
5
6
7
8
Right Off
Left +6
9
Left
+2.0
+1.5
+1.0
+0.5
18 Right +2.5
19 Right +3.0
20 Right +3.5
21 Right +4.0
22 Right +4.5
23 Right +5.0
24 Right +5.5
25 Right +6.0
10 Left
11 Left
12 Left
13 Centered 0
14 Right +0.5
15 Right +1.0
16 Right +1.5
17 Right +2.0
Left +5.5
Left +5.0
Left +4.5
Left +4.0
Left +3.5
Left +3.0
Left +2.5
26 Left
Off
Compression Modes
Max
1
2
Normal
3
Night
Word 13: Room EQ/Zone 2 Balance
Bit
7
6
5
4
3
2
1
0
Room EQ 2
Room EQ 1
Room EQ 0
BAL 4
BAL 3
BAL 2
BAL 1
BAL 0
Description
Bits 7 – 5: Room EQ Setting
Room EQ Setting
0
1
2
3
4
Room EQ OFF
Room EQ Memory 1
Room EQ Memory 2
Room EQ Memory 3
Room EQ Memory 4
Bits 4 - 0: Balance Setting 0 – 26
Balance Settings
0
1
2
3
4
5
6
7
8
Right Off
Left +6
9
Left
+2.0
+1.5
+1.0
+0.5
18 Right +2.5
19 Right +3.0
20 Right +3.5
21 Right +4.0
22 Right +4.5
23 Right +5.0
24 Right +5.5
25 Right +6.0
10 Left
11 Left
12 Left
13 Centered 0
14 Right +0.5
15 Right +1.0
16 Right +1.5
17 Right +2.0
Left +5.5
Left +5.0
Left +4.5
Left +4.0
Left +3.5
Left +3.0
Left +2.5
26 Left
Off
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RS-232 Status Block Descriptions, continued
Word 14: Center Trim
Bit
7
6
5
4
3
2
1
0
Description
Reserved
Reserved
Reserved
CT 4
CT 3
CT 2
CT 1
CT 0
Bits 4 – 0: Center Trim
Trim Settings
0
1
2
3
4
5
6
7
8
9
-10 dB
-9 dB
-8 dB
-7 dB
-6 dB
-5 dB
-4 dB
-3 dB
-2 dB
-1 dB
10
0
dB
11 +1 dB
12 +2 dB
13 +3 dB
14 +4 dB
15 +5 dB
16 +6 dB
17 +7 dB
18 +8 dB
19 +9 dB
20 +10 dB
Word 15: Surround Trim
Bit
7
6
5
4
RT 4
3
RT 3
2
RT 2
1
RT 1
0
RT 0
Mode 1/2
LED Status
Reserved
Reserved
Description
Bit 7: Mode 1/2 LED Status 1 = Mode 1 LED is On, 0 = Mode 2 LED is On
Bits 4 – 0: Surround Trim
Trim Settings
0 -10 dB
7
8
9
-3 dB
-2 dB
-1 dB
14 +4 dB
15 +5 dB
16 +6 dB
17 +7 dB
18 +8 dB
19 +9 dB
20 +10 dB
1
2
3
4
5
6
-9 dB
-8 dB
-7 dB
-6 dB
-5 dB
-4 dB
10 0 dB
11 +1 dB
12 +2 dB
13 +3 dB
Word 16: Back Trim
Bit
7
6
5
4
3
2
1
0
Description
Reserved
Reserved
Reserved
BT 4
BT 3
BT 2
BT 1
BT 0
Bits 4 – 0: Back Trim
Trim Settings
0 -10 dB
7
8
9
-3 dB
-2 dB
-1 dB
14 +4 dB
1
2
3
4
5
6
-9 dB
-8 dB
-7 dB
-6 dB
-5 dB
-4 dB
15 +5 dB
16 +6 dB
17 +7 dB
18 +8 dB
19 +9 dB
20 +10 dB
10 0 dB
11 +1 dB
12 +2 dB
13 +3 dB
16
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RS-232 Status Block Descriptions, continued
Word 17: Sub Trim
Bit
7
6
5
4
3
2
1
0
Description
Reserved
Reserved
Reserved
ST 4
ST 3
ST 2
ST 1
ST 0
Bits 4 – 0: Sub Trim
Trim Settings
0 -10 dB
7
8
9
-3 dB
-2 dB
-1 dB
14 +4 dB
1
2
3
4
5
6
-9 dB
-8 dB
-7 dB
-6 dB
-5 dB
-4 dB
15 +5 dB
16 +6 dB
17 +7 dB
18 +8 dB
19 +9 dB
20 +10 dB
10 0 dB
11 +1 dB
12 +2 dB
13 +3 dB
Word 18: End of Message
Bit
7
0
6
1
5
0
4
1
3
0
2
1
1
0
0
1
Description
Bit 7 – 0: Hexadecimal 55
Krell Home Theater Standard 7.1 Developer’s Reference
17
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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.
SYSTEM COMMAND SYSTEM COMMAND RC5 WORD HOME THEATER
(HEX)
(HEX)
(DEC)
(DEC)
(HEX)
STANDARD 7.1
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
1C
19
1
2
6
7
B
C
D
E
F
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
28
25
25
25
25
25
1
2
6
3701
3702
3706
3707
370B
370C
370D
370E
370F
3710
3711
3712
3719
371A
371B
371C
371D
371E
371F
3720
3721
3722
3723
3724
3727
3728
3729
372A
372B
372C
372D
372E
372F
3730
3733
3735
3737
3738
3739
373A
373B
373C
373D
373E
3640
3641
3642
3643
3644
SUB
REAR
CENTER
MUTE
DOWN
MENU
RIGHT
ENTER
LEFT
TAPE
UP
PREV
7.1 INPUT
BALANCE
B1
S1
S2
S3
S4
7
11
12
13
14
15
16
17
18
25
26
27
28
29
30
31
32
33
34
35
36
39
40
41
42
43
44
45
46
47
48
51
53
55
56
57
58
59
60
61
62
0
10
11
12
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
27
28
29
2A
2B
2C
2D
2E
2F
30
33
35
37
38
39
3A
3B
3C
3D
3E
0
S5
COAX1
COAX2
OPT1
OPT2
TAPE ON
TAPE OFF
S-VIDEO1
S-VIDEO2
S-VIDEO3
S-VIDEO4
COMPOSITE1
COMPOSITE2
COMPOSITE3
COMPOSITE4
MUSIC1
STEREO
VOL ZERO
PWR ON
PWR OFF
MUTE ON
MUTE OFF
VOL +10
VOL -10
PROLOGIC
MUSIC2
DVD
19
19
19
19
1
2
3
4
1
2
3
4
LD
SAT
VCR
18
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RC-5 Commands for the Home Theater
Standard 7.1, continued
SYSTEM COMMAND SYSTEM COMMAND RC5 WORD HOME THEATER
(HEX)
(HEX)
(DEC)
(DEC)
(HEX)
STANDARD 7.1
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
1C
1C
1C
1C
1C
19
19
19
19
19
19
19
19
19
19
19
5
6
7
8
9
A
B
C
D
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
28
28
28
28
28
25
25
25
25
25
25
25
25
25
25
25
5
6
7
8
9
3645
3646
3647
3648
3649
364A
364B
364C
364D
364E
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
365A
365B
365C
365D
365E
365F
3668
3669
366A
3714
3715
3716
3717
3718
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
367A
TV
CD
TUNER
AUX1
AUX2
MAIN ZONE
ZONE 2
10
11
12
13
14
16
17
18
19
19
21
22
23
24
25
26
27
28
29
30
31
32
33
34
20
21
22
23
24
48
49
50
51
52
53
54
55
56
57
58
USER
VCR INPUT
TAPE INPUT
COMPONENT1
COMPONENT2
COAX3
COAX4
COAX5
COAX6
TRIGGER1 ON
TRIGGER1 OFF
TRIGGER2 ON
TRIGGER2 OFF
TRIGGER3 ON
TRIGGER3 OFF
TRIGGER4 ON
TRIGGER4 OFF
Z2 PWR ON
Z2 PWR OFF
MAX DYNR
NIGHT DYNR
NORM DYNR
EQ OFF
EQ MEM1
EQ MEM2
EQ MEM3
EQ MEM4
DIGIT 0
DIGIT 1
DIGIT 2
DIGIT 3
DIGIT 4
DIGIT 5
DIGIT 6
DIGIT 7
DIGIT 8
DIGIT 9
SET MODE
E
10
11
12
13
13
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
14
15
16
17
18
30
31
32
33
34
35
36
37
38
39
3A
**
**
The SET MODE command allows the user to set a specific audio
decode mode using RC 5 commands. The code is set by sending the
unit the SET MODE command, then the two DIGIT commands which
define the mode. These three commands must occur in sequence; any
command sent after the SET MODE command, other than the DIGIT
commands, causes the SET MODE sequence to be reset. Refer to
the list of audio decode modes on page 20. Modes that do not apply
to the current input stream are ignored.
Krell Home Theater Standard 7.1 Developer’s Reference
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RC-5 Commands for the Home Theater Standard 7.1, continued
Audio decode modes
AUDIO DECODE MODE
CODE
and corresponding codes
Dolby Digital 5.1
00
01
02
03
04
05
06
07
08
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 09
DTS 5.1 Music
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
38
DTS 5.1 Movie
DTS 5.1 Matrix
DTS 5.1 Movie + THX
DTS 5.1 Matrix + THX
DTS 6.1 Discrete
DTS 6.1 Discrete + THX
DTS 5.1 Force
Stereo Mode (Pass Mode)
Pro-Logic II Movie Mode
Pro-Logic II Music Mode
Pro-Logic II Matrix Mode
Pro-Logic II Emulation Mode
Pro-Logic II Movie + THX Mode
Pro-Logic II Emulation + THX
DTS Neo:6 Cinema 6 Mode
DTS Neo:6 Music Mode
DTS Neo:6 Cinema 6 + THX Mode
Party Mode
General Admission Mode
Front Row Mode
On Stage Mode
Enhanced Stereo Mode
Orchestra Mode
Mezzanine Mode
Full Range + Sub Mode
Monophonic Mode
24/96 Decode Mode
20
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