PC compatibility chart
Resolution
Horizontal
Frequency
Vertical
Frequency
VESA
Standard
VGA
640
g
480
31.5 kHz
60 Hz
✓
SVGA
800
g
600
37.9 kHz
60 Hz
✓
XGA
1024
g
768
48.4 kHz
60 Hz
✓
WXGA
1280
g
768
47.7 kHz
60 Hz
✓
WXGA
1360
g
768
47.7 kHz
60 Hz
✓
VGA, SVGA, XGA and WXGA are registered
trademarks of International Business Machines
Corp.
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.
• Depending on the graphics card, resolutions of 1360
g
768 may not display correctly.
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/video) can be selected, the volume can be adjusted
and various other adjustments and settings can be made,
enabling automatic programmed playing.
NOTE
• This operation system should be used by a person who is
accustomed to using PCs.
Appendix
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.
Command format
C1 C2 C3 C4 P1 P2 P3 P4
Command 4-digits: Command. The text of four characters.
Parameter 4-digits: Parameter 0 – 9,
g
, blank, ?
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”.)
When “?” is input for some commands, the present
setting value responds.
Response code format
Problem response (communication error or incorrect
command)
0
0
5
5
1
0
0
–
3
0
0
0
0
9
0
?
?
?
?
?
O
K
E
R
R
33
RS-232C serial control cable
(cross type, commercially
available)
Return code
Command 4-digits
Parameter 4-digits
Eight ASCII codes
e
CR
Return code (0DH)
Return code (0DH)
Normal response
LC-37D44E-gb.indd 33
LC-37D44E-gb.indd 33
2008/06/16 13:38:49
2008/06/16 13:38:49
