JVC GD-V422U - Manual (Page 49)

9
9 8 7 6
5 3 2 1 4
SERIAL Terminals connection
Notes:
(1) Use the RS-232C cable to connect the computer to the Plasma Display.
(2) The computer shown is for example purposes only.
(3) Additional equipment and cables shown are not supplied with this set.
The SERIAL terminal is used when the Plasma Display is controlled by a computer.
The SERIAL terminal conforms to the RS-232C interface specification, so that the Plasma Display can be controlled
by a computer which is connected to this terminal.
The computer will require software which allows the sending and receiving of control data which satisfies the conditions
given below. Use a computer application such as programming language software. Refer to the documentation for the
computer application for details.
Basic format for control data
The transmission of control data from the computer
starts with a STX signal, followed by the command,
the parameters, and lastly an ETX signal in that order.
If there are no parameters, then the parameter signal
does not need to be sent.
Notes:
(1) If multiple commands are transmitted, be sure to
wait for the response for the first command to come
from this unit before sending the next command.
(2) If an incorrect command is sent by mistake, this
unit will send an “ER401” command back to the
computer.
Pin layout for RS-232C
Communication parameters
Signal level
Synchronization method
Baud rate
Parity
Character length
Stop bit
Flow control
RS-232C compliant
Asynchronous
9600 bps
None
8 bits
1 bit
-
Command
Command
PON
POF
AVL
AMT
IMS
DAM
Control details
Power ON
Power OFF
Volume 00 - 63
Audio mute OFF
Audio mute ON
Input select (toggle)
Slot1 input
Slot2 input
Slot3 input
PC input
Screen mode select (toggle)
4 : 3
Zoom
16 : 9
Just
Auto
Parameter
None
None
**
0
1
None
SL1
SL2
SL3
PC1
None
NORM
ZOOM
FULL
JUST
SELF
With the power off, this display responds to PON command only.
Connections
RS-232C Conversion cable
D-sub 9-pin female
•
•
Details
R X D
T X D
GND
Non use
Shorted
NC
2
3
4
5
6
7
8
9 1
SERIAL
RS-232C
Straight cable
D-sub 9p
COMPUTER
Less than
3" 15 / 16
(10 cm)
Ferrite core
(large size)
(supplied)
STX
Start
(02h)
ETX : C2 C1 C3 P2 P1 P3 P4 P5
Colon Parameter(s)
(1 - 5 bytes) End
(03h)
3-character
command (3 bytes)
Open
Installing the ferrite core
(Large size)