Rs-232C Port Specifications; Pc Control Of The Tv - HP Pavilion LC3700N User Manual

RS-232C Port Specifications

PC control of the TV

When a program is set, the TV can be controlled from
the PC using the RS-232C terminal. The input signal
(PC/AV) can be selected, the volume can be adjusted
and various other adjustments and settings can be
made, enabling automatic programmed playing.
Attach an RS-232C cable cross-type (sold separately)
to the supplied Din/D-Sub RS-232C for the
connections.
This operation system should be used by a
person who is accustomed to using PCs.
Communication conditions
Set the RS-232C communications settings on the PC to
match the TV's communications conditions.
The TV's communications settings are as follows:
Baud rate:
Data length:
Parity bit:
Stop bit:
Flow control:
Communication procedure
Send the control commands from the PC with the
RS-232C connector. The TV operates according to the
received command and sends a response message to
the PC. Do not send multiple commands at the same
time. Wait until the PC receives the OK response
before sending the next command.
78
HP Pavilion LCD HDTV User's Guide
n
9,600 bps
8 bits
None
1 bit
None
Command format
Eight ASCII codes + CR
C1 C2 C3 C4 P1 P2 P3
Command
4-digits
Command 4-digits: Command. The text of four
characters.
Parameter 4-digits: Parameter 0–9, x, blank, ?
Parameter
Input the parameter values, aligning left, and fill with
blank(s) for the remainder. (Be sure that 4 values are
input for the parameter.) When the input parameter is
not within an adjustable range, ERR returns. (Refer to
"Response code format.") Any numerical value can
replace the x on the table.
0
0
2
1
0
When ? is input for some commands, the present
setting value responds.
?
?
Response code format
Normal response
O
Problem response
(communication error or incorrect
command)
E
P4
Return code
Parameter
4-digits
0 0 9
3 0
0 0
0 5 5
? ? ?
K
Return code (0DH)
R R
Return code (0DH)