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General rs-232 commands – Contemporary Research 232-STSi V 4.5 User Manual

Page 9

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Contemporary Research

9

232-STSi Stereo PAL TV Tuner V4

General RS-232 Commands

Q0= Caption Mode Off (0-2)

Example: ‘>Q0=0’ or ‘>Q00’

Sets captioning mode

0=Captioning off (default)
1=Captioning on
2=Captioning active when volume is muted
Captioning off

Q1= Captioning Type (1-8)

Turns on captioning type

1=Caption 1 (normal setting for most captioning)
2=Caption 2
3=Caption 3
4=Caption 4
5-8= Text 1-4 (rarely used)

Q2= Video Loss Detection (0-3)

Selects response when a loss of video signal is detected

0=Both audio and video muted (default-blue screen for video)
2=Video muted, audio active

Audio is always unmated when external AV inputs are selected

Q3= A/V Detect Status (0-3)

Enables/disables sending status response when Stereo/Mono or Video
Loss Detect changes. Only status operation is affected, the functions
continue to operate.

0=Disable Stereo/Mono and Video Loss Detect status (default)
1=Enable Stereo/Mono, disable Video Loss Detect
2=Enable Video Loss Detect, Disable Stereo/Mono
3=Enable Stereo/Mono and Video Loss Detect status

Q4= Label Mode with Status (0-3)










Example: ’>Q4=2'

Sets on-screen channel label mode. Same as TM, current mode
reflected in status, setting TM will also change Q4. (Ver 3.1)

0=None
1=Alpha only
2=Numeric only (default)
3=Both alpha and numeric labels

Channel labels are displayed overlaying the video in the top-left corner
of the screen for about 10 seconds after each channel change.
Tuner displays the channel number only.