27
Connecting a PC
RS-232C port specifications
PC Control of the TV
When a programme is set, the TV can be controlled
from the PC using the RS-232C terminal. The input
signal (PC/video) can be selected, the volume can be
adjusted and various other adjustments and settings
can be made, enabling automatic programmed
playing.
Use an RS-232C serial control cable (cross type)
(commercially available) for the connections.
NOTE
This operation system should be used by a person
who is accustomed to using PCs.
RS-232C serial control cable (cross type)
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:
9,600 bps
Data length:
8 bits
Parity bit:
None
Stop bit:
1 bit
Flow control:
None
Communication procedure
Send the control commands from the PC via 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.
Make sure to send “A” with the carriage return and
confirm that “ERR” returns before operating.
Command format
Eight ASCII codes +CR
n
o
p
C1 C2 C3 C4 P1 P2 P3 P4
Command four digits: Command. The text of four
characters.
Parameter four digits: Parameter 0
_
9, blank, ?,
minus
Return code (0DH):
?
•
•
•
n
o
p
Parameter
Input the parameter values, aligning left, and fill with
blank(s) for the remainder (Be sure that four values are
input for the parameter).
When the input parameter is not within an adjustable
range, “ERR” returns (Refer to “Response code format”).
0
0
5
5
1
0
0
0
0
0
9
0
When “?” is input for some commands, the present
setting value responds.
?
?
?
?
Response code format
Normal response
O
K
Return code (0DH)
Problem response (communication error or incorrect
command)
E
R
R
Return code (0DH)
