Contemporary
Research
16
232-ATSC Digital HDTV Tuner
Code
Function
Operation
Display
KK=82
Ratio
Steps through aspect ratios, options depend on channel and
output types
KK=81
Signal
Displays signal Strength
KK=100
Info
Launches on-screen information window
KK=62
Guide
Displays Electronic Program Guide
KK=115
CC – Closed captions
Steps through captioning options
Audio
VU
Ramp volume up
Starts volume ramping up
VD
Ramp volume down
Starts volume ramping down
VX
Volume Mute off
Restores audio volume to previous level
VM
Volume Mute on
Example: ‘>VM’
Turns off audio outputs
Mutes audio outputs
VV
Stop volume ramp
Stops volume ramping
VT
Toggle Volume Mute
Alternates audio mute on and off
KK=85
Audio Mode
Step through audio mode options for mono, stereo, SAP
Status Request
SQ
Request Q Mode status
Unit sends “Q” Mode status string
SS
Request Front Panel status
Unit sends “S” Front Panel status string
ST
Request Channel status
Example: ‘>ST’
Unit sends “T” Channel/Source status string
Returns Channel/Source status response string
SV
Request AV status
Unit sends “V” Audio status string
A carriage return is required at the end of each command and is assumed in all examples. The ‘=’ sign for
parameters may be omitted if desired, though it is helpful for clarity in checking programming.
Terminal Communication Commands
EF
Echo Off
Characters received will not be re-transmitted (power up default).
EN
Echo On
Characters received will be re-transmitted.
Example: ‘>EN’ Characters received will be re-transmitted.
ID
Product ID
Returns the product model number and firmware version.
Z!
Zap
Reconfigures unit for all factory default settings.
