38
User's Manual
RECEIVED
COMMAND ASCII HEX
MUTE m 0x6D
UNMUTE n 0x6E
VOL UP u 0x75
VOL DOWN d 0x64
POWER OFF f 0x66
POWER ON o 0x6F
AUTO ON a 0x61
AUTO OFF t 0x74
DBS/BS 1 0x31
LD 2 0x32
VCR1 3 0x33
VAUX 4 0x34
CD 5 0x35
TAPE/DAT 6 0x36
TUNER 7 0x37
PHONO 8 0x38
The Theater Grand Processor has a
DB-9 rear panel connector which allows it to
be connected to home theater controllers and
home computers. This is used in custom
installations to allow computer control of the
Theater Grand Processor. The commands are
sent to the Processor and it can select the
different inputs, turn the volume up and down,
power on and off, and mute on or off.
The following table is provided for pro-
grammers, it shows which command codes
have to be received by the Theater Grand
Processor to operate the various functions.
The codes transmitted by the Theater Grand
Processor are the same, except there are four
extra codes for the surround mode status.
The RS-232 Port
RS-232 Port
COMMUNICATIONS
Serial RS-232, 9600 Baud, 8-N-1
DB-9 WIRING
PINS 1, 6 and 4 are joined together internally
PINS 7 and 8 are joined together internally
PIN 2- Data from processor to controller
(processor transmit)
PIN 3- Data from controller to processor
(processor receive)
PIN 5- Ground/Common
PIN 9- No connection
TRANSMITTED
COMMAND ASCII HEX
STEREO S 0x53
PCM P 0x50
DOLBY DIGITAL D 0x31
DTS T 0x54
All the other transmitted codes are
the same as those received by the
Theater Grand Processor.
Note: The volume up/down transmit
codes are only sent after the same
codes have been received by the
Theater Grand Processor.
To Next Page
Loading...