HP LD4730 and LD4730G LCD Ultraslim Bezel Digital Signage Displays Command Reference Guide
7-Wire configurations
(Standard RS-232-C cable)
3-Wire configurations
(Not Standard)
RTS 7
8CTS RTS7 7CTS
CTS 8
7RTS CTS8 8RTS
D-Sub 9
(Female)
D-Sub 9
(Female)
D-Sub 9
(Female)
D-Sub 9
(Female)
Communication parameter
●
Baud Rate—9600 baud rate (UART)
●
Data Length—8 bit
●
Parity Bit—None
●
Stop Bit—1 bit
●
Flow Control—None
●
Communication Code—ASCII code
●
Use a crossed (reverse) cable
Command reference list
The table below shows the commands supported by the LD4730 and LD4730G.
COMMAND1 COMMAND2 DATA1 DATA2 DATA3
01. Power k a 00H–01H
02. Input Select k b 07H–0BH
03. Aspect Ratio k c 01H–1FH
04. Local Dimming j a 00H–01H
05. Backlight m g 00H–064H
06. Volume Control k f 00H–64H
07. Contrast k g 00H–64H
08. Brightness k h 00H–64H
09. Ambient Light Sensor j b 00H–02H
10. Display Name v a
11. Sharpness k k 00H–0AH
12. OSD Select k l 00H–01H
13. Remote Lock/Key Lock k m 00H–01H
14. Balance k t 00H–64H
2 Command reference ENWW