Samsung UD46A, UD55A user manual Ack/Nak CMD Val1 Length Check 0xAA 0xFF ‘A’ 0x18 Screen Sum

Introduction

Caution

Only works with models include TV.

•Get Screen Mode Status

Header

0xAA

command

0x18

ID

DATA Length

0

CheckSum

•Set Picture Size

Header

0xAA

command

0x18

ID

DATA Length

1

DATA

Screen Mode

CheckSum

	Screen Mode : Screen Mode code to be set on TV / Monitor.
	0x01		16 : 9
	0x04		Zoom
	0x31		Wide Zoom
	0x0B		4 : 3
•	Ack
	Header	command			DATA	Ack/Nak	r-CMD	Val1
					Length				Check
				ID
	0xAA	0xFF			3	‘A’	0x18	Screen	Sum
								Mode
	Screen Mode : Same as above
•	Nak
	Header	command			DATA	Ack/Nak	r-CMD	Val1	Check
				ID	Length
									Sum
	0xAA	0xFF			3	‘N’	0x18	ERR

ERR : Error code that shows what occurred error is.

•Screen Size Control

•Function

Personal Computer recognizes the screen size of TV / Monitor.

•Get Screen Size Status

Header

0xAA

command

0x19

ID

DATA Length

0

CheckSum