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Plasma TV
3.
Communication Protocol
3.1-
Terminal Mode (Communication between television and external PC)
-
When the RS232C mode is set from Off to On by the television OSD menu and
the TXD2 and RXD2 serial communication lines are switched to AV control, the
television can communicate with and external PC.
M
Set Up
Set AV Control
M
If you want to use AV control
Function, please set the RS232C.
L
Move
M
Terminal Mode Switching
ON
OFF
(1) External PC can turn terminal mode On and Off.
(2) Communication is prohibited when terminal mode is Off.
(3) When terminal mode is on, Front Keys and Remote do not operate. The only button that will
operate is main power.
(4) When TV set is turned Off and On, terminal mode remains in its current state
(5) Factory Setting: Terminal Mode is Off and AV Control Mode is Off.
(6) The television will always respond when an attempt to turn terminal mode on or off is made
with either an ACK or a NAK.
(7) In the following cases, even if the check box of menu is checked, Terminal mode cannot be
turned on.
-
Adjust mode
-
While Event Timer and Timer Recording
-
While Auto CH scan operates
-
While upgrade operates
(8) Write function in terminal mode will write data to the EEPROM in the same manner as when
unit is operated in Normal Mode through the OSD.
(9) For OSD functionality in terminal mode, see table 5.
(10) When the Life extension mode is active, the unit will not accept changes in the contrast
control.
Connected RS232C
SEL
Select
Table 3.2.1 Terminal Mode Control
Command sent to PDP
Action
Character
Code (Hex)
Action
Character
Code (Hex)
12
M
Plasma Television
Response from PDP
Request On
Accept / Reject
ENQ
ACK/NAK
05
Request OFF
Accept / Reject
EOT
ACK/NAK
04
PW1A
06/15
06/15
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