Sharp LC-32L400X operation manual Teletext function, PC Control of the TV

Teletext function

What is Teletext?

Teletext broadcasts pages of information and entertainment to specially equipped television sets. News, weather reports, sports information, stock exchange prices and programme previews are among the many services available.

Turning on and off Teletext
1	Select a TV channel or external input source
	providing the Teletext programme.
2	Press m to display the Teletext.
3	Each time you press m, the screen switches
	as shown below.
	TELETEXT	TELETEXT

NOTE

•If you select a programme with no Teletext signal, “No teletext available.” is displayed.

•The same message displays during other modes if no Teletext signal is available.

•New Zealand delivery model can receive MHEG data broadcasting.

Button functions

Buttons	Description
CH (r/s)	Increase or decrease the page number.
Colour	You can select a group or block of pages
(Red/Green/	displayed in the coloured brackets at
Yellow/Blue)	the bottom of the screen by pressing
	the corresponding Colour (Red/Green/
	Yellow/Blue) on the remote control unit.
0 — 9	Directly select any page from 100 to 899
	by using 0 — 9.
v (Top/	Switch the Teletext image to Top, Bottom
Bottom/Full)	or Full.
k (Reveal	To reveal hidden information such as an
hidden	answer to a quiz.
TELETEXT)
3 (Hold)	To stop updating Teletext pages
	automatically or release the hold mode.
[ (Subtitle	Display the subtitle during Teletext page.
for TELETEXT)	• Subtitle will not be displayed when
	the service does not contain subtitle
	information.
1 (Subpage)	Display the subpage during Teletext page.

NOTE

•Teletext can display only when it is sent by network. Not used to convert between languages.

PC Control of the TV

•When a programme 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 the Din/D-sub RS-232C for the connections.

NOTE

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

Communication conditions

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

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

	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, space, ?

Parameter

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

When the input parameter is not correct, “ERR” returns. (Refer to “Response code format”.)

0 0 0 0 9 a 3 0

Response code format

Normal response

OK

Return code (0DH)

Problem response (communication error or incorrect command)

E R R

Return code (0DH)

22