Hitachi 42EDT41A Service Manual page 17

Plasma TV
3.3.5 Combination Control Specification
(1) Active Terminal On/Off States
• If you send a Terminal On command when the OSD is active, the OSD will disappear
The remote control keys will also be invalid except for the Power button on the front of the
•
unit.
• Closed Caption Display (CCD) function will be usable when in Terminal Mode
Table 3.3.5 (Variables of Activating Terminal On / Terminal Off
Power On
Stand-By
Adjust Mode
When Auto-CH is operating
While Magic Focus is operating
(On Magic Menu Mode)
While upgrade is operating
When Lock is Set
When Lock is turned on (BLK/Mute)
When Sleep Timer is Active
When CableCARD is inserted
When CableCARD is in Stand-By
When the Event Timer / Timer
Record are set
When the Event Timer / Timer
Record are operating
When Auto Link is in Stand-By
When Day/Night Timer is set
When Quick Start Up Stand-By is
active
If the Terminal Mode is turned on while the Sleep Timer is active and unit is powered off by
•
the controller, the time values in the Sleep Timer will be cleared.
The Event Timer/ Timer Rec. will not operate when the unit is Terminal Mode On.
•
• If the Terminal Mode is activated when the Auto Link Setting is in Stand-By, The Auto Link
operation will be cancelled.
The Urgent Broadcast Signal will take precedence when Terminal Mode is on with the
•
CableCARD installed.
• The Magic Timer function is disabled when Terminal Mode is On.
(2) Other Terminal Control Considerations
Terminal Mode will remain On when you turn the power supply Off or On.
•
If the TV is unplugged at the wall outlet, the Terminal Mode will turn Off.
•
• If the TV is turned off in normal mode and the Terminal On command is sent, the unit can be
turned on via RS232C.
The commands executed in Terminal mode should be executed and displayed after exiting
•
Terminal Mode.
(3) Command Execution
1- The time delay between 1 byte characters in a command string is 99mS. Any delay
longer than 100mS will be cancelled and the unit will respond with a "NACK" (16H).
2- When transmitting command strings, an ACK or NAK should be sent by the TV. However,
this will not be the case when commands are re-executed or the command does not
execute.
3- The framing delay between continuos commands is 32mS.
4- When communicating with the unit in Terminal Mode, the unit must respond with either
an ACK or an NAK before sending it another command. Failure to do so will result in
commands that are not executed.
5- Please note that when the Power on command is sent to the unit, it will be necessary to
wait 12 seconds before sending any other command.
Terminal On Terminal Off
Command Command
Executable Executable
Executable Executable
Prohibited Prohibited
Prohibited Prohibited
Prohibited Prohibited
Prohibited Prohibited
Executable Executable
Executable Executable
Executable Executable
Executable Executable
Prohibited Prohibited
Executable Executable
Executable Executable
Executable Executable
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PW1A