NEC LCD8205 - MultiSync - 82" LCD Flat Panel Display Control Manual page 19

Note.) The maximum data length that can be written to the monitor at a time is
32bytes.
Ex.) The byte data 20h is encoded as ASCII characters '2' and '0' (32h and 30h).
Message
STX (02h): Start of Message
'0'-'0' (30h, 30h): Result code. No error.
'C'-'2','0'-'3'-'D'-'6' (43h, 32h, 30h, 33h, 44h, 36h): power control reply command
The monitor replies same as power control command to the controller.

'0'-'0'-'0'-'1' (30h, 30h, 30h, 31h): Power mode
ETX (03h): End of Message
Check code
BCC: Block Check Code
Refer to the section 5.1.3. "Check code" for a BCC calculation.
Delimiter
o= EMa FW = b = =
0001: ON
0002, 0003: Do not set.
0004: OFF (same as the power off by IR)
=