LC-37X20E (serv.man10) - Sharp TV User Guide / Operation Manual. Page 37

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Connecting a PC
C1 C2 C3 C4 P1 P2 P3  P4
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 cable cross-type (commercially available)  
for the connections.
NOTE
• 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:
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
Command 4-digits: Command. The text of four 
characters.
Parameter 4-digits: Parameter 0 – 9, blank, ?
0
0
5
5
1
0
0
3
0
0
0
0
9
0
?
?
?
?
?
O
K
E
R
R
When “?” is input for some commands, the present 
setting value responds.
Response code format
After sending the return code (0DH), make sure to send 
line feed (0AH) as well.
Normal response
Problem response (communication error or incorrect 
command)
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”.)
Return code (0DH)
Return code (0DH)
 35
RS-232C serial control cable 
(cross type)
Eight ASCII codes 
eCR
Command 4-digits
Parameter 4-digits Return code
LC-3237X20E-gb.indd   35
LC-3237X20E-gb.indd   35
2007/08/31   16:58:47
2007/08/31   16:58:47
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