Sharp LC-37GA8E RS-232C port specifications, Appendix, PC Control of the TV, Command format

Appendix

RS-232C port specifications

PC Control of the TV

When a program is set, the TV can be controlled from the PC using the RS-232C terminal. The input signal (PC/video) can be selected, the volume can be adjusted and various other adjustments and settings can be made, enabling automatic programmed playing. Attach an RS-232C cable cross-type (commercially available) to a 9 pin D-sub/MINI-DIN (optional: AN-A1RS) for the connections.

NOTE

•This operation system should be used by a person who is accustomed to using PCs.

9 pin D-sub/MINI-DIN conversion cable (optional: AN-A1RS)

RS-232C serial control cable (cross type, commercially available)

Communication conditions

Set the RS-232C communications settings on the PC to match the TV’s communications conditions. The TV’s communications settings are as follows:

•	Baud rate: 9,600 bps	•	Stop bit: 1 bit
•	Data length: 8 bits	•	Flow control: None

•Parity bit: None

Communication procedure

Send the control commands from the PC via the RS-232C connector.

The TV operates according to the received command and sends a response message to the PC.

Do not send multiple commands at the same time. Wait until the PC receives the OK response before sending the next command.

Command format

Eight ASCII codes eCR

	C1	C2	C3	C4	P1	P2	P3	P4
Command 4-digits					Parameter 4-digits Return code

Command 4-digits: Command. The text of four characters.

Parameter 4-digits: Parameter 0 – 9, g, blank, ?

Parameter

Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that four values are input for the parameter.)

When the input parameter is not within an adjustable range, “ERR” returns. (Refer to “Response code format”.)

0				–	3	0	0	0	5	5
0	0	0	9	1	0	0

When “?” is input for some commands, the present setting value responds.

? ? ? ? ?

Response code format

Normal response

O K Return code (0DH)

Commands

CONTROL ITEM	COMMAND				PARAMETER				CONTROL CONTENTS
POWER SETTING	P	O	W	R	0	_	_	_	POWER OFF
INPUT SELECTION A	I	T	G	D	_	_	_	_	INPUT SWITCHING (Toggle)
	I	T	V	D	_	_	_	_	TV (CHANNEL FIXED)
	I	A	V	D	*	_	_	_	EXT1 – 5 (1 – 5)
	I	A	V	D	?	?	?	?	1 to 5, ERR (TV)
CHANNEL	D	C	C	H	*	*	_	_	TV DIRECT CHANNEL (1 – 99)
	D	C	C	H	?	?	?	?	1 to 99
	C	H	U	P	_	_	_	_	CHANNEL UP
	C	H	D	W	_	_	_	_	CHANNEL DOWN
INPUT SELECTION B	I	N	P	1	0	_	_	_	EXT1 (Y/C)
	I	N	P	1	1	_	_	_	EXT1 (CVBS)
	I	N	P	1	2	_	_	_	EXT1 (RGB)
	I	N	P	1	?	?	?	?	0 to 2
	I	N	P	2	0	_	_	_	EXT2 (Y/C)
	I	N	P	2	1	_	_	_	EXT2 (CVBS)
	I	N	P	2	2	_	_	_	EXT2 (RGB)
	I	N	P	2	?	?	?	?	0 to 2
	I	N	P	3	0	_	_	_	EXT3
	I	N	P	4	0	_	_	_	EXT4 (RGB)
	I	N	P	4	1	_	_	_	EXT4 (COMPONENT)
	I	N	P	4	?	?	?	?	0 to 1
	I	N	P	5	0	_	_	_	EXT5 (HDMI)
AV MODE	A	V	M	D	0	_	_	_	AV MODE SELECTION (Toggle)
SELECTION	A	V	M	D	1	_	_	_	STANDARD
	A	V	M	D	2	_	_	_	SOFT
	A	V	M	D	3	_	_	_	ECO
	A	V	M	D	4	_	_	_	USER
	A	V	M	D	5	_	_	_	DYNAMIC
	A	V	M	D	?	?	?	?	1 to 5
VOLUME	V	O	L	M	*	*	_	_	VOLUME (0 – 60)
	V	O	L	M	?	?	?	?	0 to 60
POSITION	H	P	O	S	*	*	*	_	H-POSITION AV (−10 – +10)
	H	P	O	S	?	?	?	?	AV (−10 – +10)
	V	P	O	S	*	*	*	_	V-POSITION AV (−20 – +20)
	V	P	O	S	?	?	?	?	AV (−20 – +20)
	C	L	C	K	*	*	*	_	CLOCK (0 – 180)
	C	L	C	K	?	?	?	?	0 to 180
	P	H	S	E	*	*	_	_	PHASE (0 – 40)
	P	H	S	E	?	?	?	?	0 to 40
WIDE MODE	W	I	D	E	0	_	_	_	WIDE MODE (Toggle)
	W	I	D	E	1	_	_	_	NORMAL (AV)
	W	I	D	E	2	_	_	_	ZOOM 14:9 (AV)
	W	I	D	E	3	_	_	_	PANORAMA (AV)
	W	I	D	E	4	_	_	_	FULL (AV)
	W	I	D	E	5	_	_	_	CINEMA 16:9 (AV)
	W	I	D	E	6	_	_	_	CINEMA 14:9 (AV)
	W	I	D	E	9	_	_	_	NORMAL (PC)
	W	I	D	E	1	0	_	_	FULL (PC)
	W	I	D	E	?	?	?	?	1 to 10
MUTE	M	U	T	E	0	_	_	_	MUTE (Toggle)
	M	U	T	E	1	_	_	_	MUTE ON
	M	U	T	E	2	_	_	_	MUTE OFF
	M	U	T	E	?	?	?	?	1 to 2
SURROUND	A	C	D	V	0	_	_	_	SURROUND (Toggle)
	A	C	D	V	1	_	_	_	SURROUND ON
	A	C	D	V	2	_	_	_	SURROUND OFF
	A	C	D	V	?	?	?	?	1 to 2
AUDIO CHANGE	A	C	H	A	_	_	_	_	SOUND SELECT (ST/Bilingual/mono)
SLEEP TIMER	O	F	T	M	0	_	_	_	OFF
	O	F	T	M	1	_	_	_	30 m
	O	F	T	M	2	_	_	_	1 h 00 m
	O	F	T	M	3	_	_	_	1 h 30 m
	O	F	T	M	4	_	_	_	2 h 00 m
	O	F	T	M	5	_	_	_	2 h 30 m
	O	F	T	M	?	?	?	?	0 to 150
TEXT	T	E	X	T	0	_	_	_	TEXT OFF
	T	E	X	T	1	_	_	_	TEXT CHANGE (Toggle)
	T	E	X	T	?	?	?	?	0 to 1
	D	C	P	G	*	*	*	_	DIRECT PAGE JUMP (100 – 899)
	D	C	P	G	?	?	?	?	100 to 899

Problem response (communication error or incorrect command)

E R R Return code (0DH)

22

NOTE

•If an underbar (_) appears in the parameter column, enter a space.

•If an asterisk (*) appears, enter a value in the range indicated in brackets under CONTROL CONTENTS.