34
Appendix
PC compatibility chart
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
confi rm that “ERR” returns before operating.
Return codeCommand 4-digits Parameter 4-digits
Command format
Eight ASCII codes
e
CR
Command 4-digits: Command. The text of four characters.
Parameter 4-digits: Parameter 0 – 9, blank, ?
C1 C2 C3 C4 P1 P2 P3 P4
Parameter
Input the parameter values, aligning left, and fi ll 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”.)
When “?” is input for some commands, the present
setting value responds.
0055
100
–30
0009
0
????
?
Return code (0DH)
Response code format
Normal response
Problem response (communication error or incorrect
command)
Return code (0DH)
OK
ERR
RS-232C port specifi cations
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/video)
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 (commercially
available) to a 9 pin D-sub/MINI-DIN (optional: AN-A1RS)
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:
Parity bit:
Data length:
Stop bit:
Flow control:
9,600 bps
8 bits
None
1 bit
None
RS-232C serial control cable
(cross type, commercially available)
9 pin D-sub/MINI-DIN
conversion cable (optional:
AN-A1RS)
NOTE
• This TV has only limited PC compatibility, correct operation
can only be guaranteed if the video card conforms exactly
to the VESA 60Hz standard. Any variations from this
standard will result in picture distortions.
After sending the return code (0DH), make sure to send
line feed (0AH) as well.
Resolution
Horizontal
Frequency
Vertical
Frequency
VESA
Standard
640
g
480
VGA
31.5 kHz 60 Hz
✔
800
g
600
SVGA 37.9 kHz 60 Hz
✔
1024
g
768
XGA 48.4 kHz 60 Hz
✔
VGA, SVGA, XGA, WXGA and SXGA are registered
trademarks of International Business Machines Co.,
Inc.
1360
g
768
WXGA 47.7 kHz 60 Hz
✔
1280
g
1024
SXGA 64.0 kHz 60 Hz
✔
LC-42XD1E_gb_d.indd 34LC-42XD1E_gb_d.indd 34 2006/10/27 10:23:102006/10/27 10:23:10
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