Samsung SyncMaster UD55A User Manual page 31

• Ack
Header command
0xAA 0xFF
Power : Same as above
• Nak
Header command
0xAA 0xFF
ERR : Error code that shows what occurred error is
• Volume Control
• Function
Personal Computer changes volume of TV / Monitor.
• Get Volume Status
Header
0xAA
• Set Volume
Header
0xAA
Volume : Volume value code to be set on TV / Monitor (0 ~ 100)
• Ack
Header command
0xAA 0xFF
Volume : Same as above
• Nak
Header command
0xAA 0xFF
ERR : Error code that shows what occurred error is
Introduction
DATA
Length
ID
3
DATA
Length
ID
3
command
0x12
command
ID
0x12
DATA
Length
ID
3
DATA
Length
ID
3
Ack/Nak r-CMD
'A' 0x11
Ack/Nak r-CMD
'N' 0x11
DATA Length
ID
0
DATA DATA
Length
1 Volume
Ack/Nak r-CMD
'A' 0x12
Ack/Nak r-CMD
'N' 0x12
Val1
Check
Sum
Power
Val1
Check
Sum
ERR
CheckSum
CheckSum
Val1
Check
Sum
Volume
Val1
Check
Sum
ERR