Samsung OHA 75" 4K Outdoor Commercial Display - Manual (Page 27)

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Screen mode control
• Function
The screen mode of a product can be changed using a PC.
Screen mode cannot be controlled when the
Video Wall function is enabled.
• Viewing screen status (Get Screen Mode Status)
Header Command ID Data length Checksum
0xAA 0x18 0
• Setting the picture size (Set Picture Size)
Header Command ID Data length Data Checksum
0xAA 0x18 1 "Screen Mode"
"Screen Mode": A code that sets the product status
0x01 16 : 9
0x04 Zoom
0x31 Wide Zoom
0x0B 4 : 3
• Ack
Header Command ID Data length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'A' 0x18 "Screen
Mode"
"Screen Mode": A code that sets the product status
• Nak
Header Command ID Data length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'N' 0x18 "ERR"
"ERR": A code showing what error has occurred
Screen size control
• Function
The screen size of a product can be changed using a PC.
• Viewing the screen size (Get Screen Size Status)
Header Command ID Data length Checksum
0xAA 0x19 0
• Ack
Header Command ID Data
length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'A' 0x19 "Screen Size"
"Screen Size": product screen size (range: 0 – 255, unit: inch)
• Nak
Header Command ID Data
length Ack/Nak r-CMD Val1 Checksum
0xAA 0xFF 3 'N' 0x19 "ERR"
"ERR": A code showing what error has occurred