This is known to work on the BDL series.
(A pasted report from Code Manager)
Note that as it says the panel is set to address 1
The serial comms on these units is very unforgiving of any noise or even an invalid command, such as Auto Adjust while in CVBS mode. A power cycle is required to recover.

Phil BDL4231 Addr 1 9600bd
00: Standby
05 01 18 01 1D
01: AV input
08 01 AC 01 00 00 00 A4
02: Card AV
08 01 AC 01 01 00 00 A5
03: Component 1 input
08 01 AC 03 00 00 00 A6
04: Component 2 input
08 01 AC 03 01 00 00 A7
05: VGA input
08 01 AC 05 00 00 00 A0
06: HDMI 1 input
08 01 AC 09 00 00 00 AC
07: HDMI 2 input
08 01 AC 09 01 00 00 AD
08: On
05 01 18 02 1E
09: Auto Adjust
06 01 70 40 00 37
10: Set Power Save Low
06 01 DD 00 01 DB
11: Set Power Save Mid
06 01 DD 00 02 D8
12: Set Power Save High
06 01 DD 00 03 D9