Input Auto Query; Aspect Ratio Configure; Aspect Ratio Query - Monoprice Blackbird User Manual

For example, to set the Input Auto to OFF:
50 56 54 24 01 F0 00 00 00 00 00 00 00 00 00 00 00 0F

Input Auto Query

Package Length: 18 bytes
This is a query command, which means you must send the query package and then
receive an answer.
For example, to query the Input Auto status:
Send package: 50 56 54 24 02 00 00 00 00 00 00 00 00 00 00 00 00 20
Receive package: 50 56 54 24 02
The blue F0 means to set input auto to OFF. Change the
ON.

Aspect Ratio Configure

Package Length: 18 bytes
[0x50+0x56+0x54+0x24+0x11+AspectRatioIndex+0x00+0x00+0x00+0x00+0x00+0x00+
0x00+0x00+0x00+0x00+0x00+checksum]
All you need to change is "AspectRatioIndex" and "checksum".
For example, to set the Aspect Ratio to 4:3:
50 56 54 24 11 01 00 00 00 00 00 00 00 00 00 00 00 30

Aspect Ratio Query

Package Length: 18 bytes
This is a query command, which means you must send the query package and then
receive an answer.
For example, to query the Aspect Ratio:
F0 00 00 00 00 00 00 00 00 00 00 00 10
17
F0 to 0F to set input auto to