5.4 RS-232 Specification

Important:

This document is applicable to the following products and models.

NovoDisplay DK4 series DK434, DK554, DK654, DK754 and DK854.

Serial Port Settings

Item	Value
Baud Rate	38400
Data Bits	8
Stop Bits	1
Parity	None
Communcation interface	HEX

RS232 Command List

Function	Mode	Code	Remark
Power	On	55 00 8E 00 E3	Power on
POWER	OFF	55 00 8E 0F F2	Power off
Menu	Input Source	55 00 80 00 D5	Open input source menu
Navigation	Up	55 00 00 01 56	Up
Navigation	Down	55 00 00 02 57	Down
Navigation	Left	55 00 00 03 58	Left
Navigation	Right	55 00 00 04 59	Right
Navigation	OK	55 00 00 05 5A	OK(confirm)
Source Info	Display	55 00 18 00 6D	display source information
Audio	Mute	55 00 1A 00 6F	Mute
set up sleep mode	15 minutes	55 00 20 00 75
set up sleep mode	30 minutes	55 00 20 01 76
set up sleep mode	45 minutes	55 00 20 02 77
set up sleep mode	60 minutes	55 00 20 02 79
set up sleep mode	off	55 00 20 03 78	disable sleep mode
Sound Mode	Standard	55 00 22 00 77
Sound Mode	Customize	55 00 22 02 79
Sound Mode	Movie	55 00 22 03 7A
Picture mode	Standard	55 00 28 00 7D
Picture mode	Warm	55 00 28 01 7E
Picture mode	Vivid	55 00 28 02 7F
Picture mode	Customize	55 00 28 03 80
Aspect ratio	16:9	55 00 4C 00 A1
Aspect ratio	Point to Point	55 00 4C 01 A2
Aspect ratio	4:3	55 00 4C 02 A3
Volume	Up	55 00 0C 00 61
Volume	Down	55 00 0C 00 63
Set Volume (%)	0%	55 00 0F 00 64
Set Volume (%)	20%	55 00 0F 14 78
Set Volume (%)	40%	55 00 0F 28 8C
Set Volume (%)	60%	55 00 0F 3C A0
Set Volume (%)	80%	55 00 0F 50 B4
Set Volume (%)	100%	55 00 0F 64 C8
Back		55 00 0A 00 5F
Switch to input source	HDMI 1	55 00 80 08 DD	switch to HDMI input 1
Switch to input source	HDMI 2	55 00 80 09 DE	switch to HDMI input 2
Switch to input source	OPS	55 00 80 0B E0	switch to OPS
Set Backlight (%)	0%	55 00 89 00 DE
Set Backlight (%)	20%	55 00 89 14 F2
Set Backlight (%)	40%	55 00 89 28 06
Set Backlight (%)	60%	55 00 89 3C 1A
Set Backlight (%)	80%	55 00 89 50 2E
Set Backlight (%)	100%	55 00 89 64 42