JVC DLA-SX21U Instructions Manual page 56

Specifications
3) Special parameters
Input switching parameters
Character
'0'
'1'
'3'
'4'
'5'
Operation mode parameters
Character
'0000'
'0001'
'0002'
'0004'
3. External control command table
Function
OPERATE
HIDE
Right Left reversal
Top Bottom inversion
Input switch
Operation mode
Operation mode: Only Asking command is possible.
56
Hex. Meaning
30 Y/C
31 VIDEO
33 PC1
34 PC2
35 PC3
Hex.
30h 30h 30h 30h
30h 30h 30h 31h
30h 30h 30h 32h
30h 30h 30h 34h
Command Asking
Power on
U0F X
U00
U17
U18
U1A
Z03
Meaning
Stand-by mode
Power-on mode
Cool-down mode
Emergency mode
Data type
ELSE Numeric Value ON/OFF
X X
X X
X X
X X
X X X
X X
Special Data
X
X
X
X
Y/C ...
Stand-by...