Panasonic TH-55CQ1 Operating Instructions Manual page 20

Pin assignments and signal names for SERIAL
Terminal
1
Pin No.
NC (not connected)
Received data
Transmitted data
NC (not connected)
GND (Ground)
NC (not connected)
NC (not connected)
NC (not connected)
NC (not connected)
These signal names are those of computer
specifications.
Communication parameters
Signal level: RS-232C compliant
Synchronization method: Asynchronous
Baud rate: 9 600 bps
Parity: None
Character length: 8 bits
Stop bit: 1 bit
Flow control: None
Basic format for control data
The transmission of control data starts with a STX
signal, followed by the command, the parameters,
and lastly an ETX signal in that order. If there are no
parameters, the colon ":" does not need to be sent.
STX C1 C2 C3
Start
3-character command
(3 bytes)
20
English
2 3 4 5
6 7 8 9
Signal Name
: P1 P2 P3 P4 P5
Colon
Parameter(s)
Command
Command
PON
POF
AVL
AMT
IMS
DAM
Note
●
If an incorrect command is sent, this unit will reply an
"ER401" command to the computer.
●
If communication has not been established for
reasons such as a bad connection between the
computer and display, nothing is returned (not even
ER401).
● "ER401" may be returned when a command cannot
be received correctly due to interference from the
surrounding environment.
Please ensure that the system or software resends
the command if this occurs.
Communication interval
After getting the feedback, then you can continue the
following commands.
Suggest setting a timeout for the command response.
(specify 10 seconds or longer)
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.
● When sending a command which does not require
parameter, a colon (:) is not needed.
ETX
●
Consult your local Panasonic dealer for detail
instructions on command usage.
End
For mode details, visit the following web site.
http://panasonic.net/cns/prodisplays/
Parameter Control details
(None) Power ON
(None) Power OFF
*** VOLUME 000 - 100
0 Audio MUTE OFF
1 Audio MUTE ON
(None) Input select (toggle)
HM1 HDMI 1 input (HDMI1)
HM2 HDMI 2 input (HDMI2)
PC1 PC IN input (PC)
UD1 USB input (USB)
FULL Full
NORM Normal
NATV Native
ZOOM Zoom