46Preparations11 Preparations1.6.3 Control CodesViewing control state (Get control command)Controlling (Set control command)Command All communications take place in hexadecimals. The checksum is calculated by adding up all valuesexcept the header. If a checksum adds up to be more than 2 digits as shown below(11+FF+01+01=112), the first digit is removed.Header CommandIDData lengthChecksum0xAA Commandtype0Header CommandIDData length DataChecksum0xAA Commandtype1 ValueNo. Command type Command Value range1 Power control 0x11 0~12 Volume control 0x12 0~1003 Input source control 0x14 -4 Screen mode control 0x18 -5 Screen size control 0x19 0~2556 PIP on/off control 0x3C 0~17 Auto adjustment control 0x3D 08 Video wall mode control 0x5C 0~19 Safety Lock 0x5D 0~110 Video Wall On 0x84 0~111 Video Wall User Control 0x89 -