Brightness (command: k h), Sharpness (command: k k), Color (command: k i) – HP LD4235 41.92-inch LED Digital Signage Display User Manual
Page 93: Tint (command: k j)

[k][g][ ][Set ID][ ][Data][Cr]
Acknowledgement
[g][ ][Set ID][ ][OK/NG][Data][x]
07. Brightness (Command: k h)
To adjust the screen brightness.
Transmission
[k][h][ ][Set ID][ ][Data][Cr]
Data
00 to 64: Brightness 0 to 100
Acknowledgement
[h][ ][Set ID][ ][OK/NG][Data][x]
08. Sharpness (Command: k k)
To adjust the screen sharpness.
* This function is available only in AV/Component input.
Transmission
[k][k][ ][Set ID][ ][Data][Cr]
Data
00 to 64: Sharpness 0 to 100
Acknowledgement
[k][ ][Set ID][ ][OK/NG][Data][x]
09. Color (Command: k i)
To adjust the screen color.
* This function is available only in AV/Component input.
Transmission
Data
[k][i][ ][Set ID][ ][Data][Cr]
00 to 64: Color 0 to 100
Acknowledgement
[i][ ][Set ID][ ][OK/NG][Data][x]
10. Tint (Command: k j)
To adjust the screen tint.
* This function is available only in AV/Component input.
Transmission
Transmission / Receiving protocol
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