Installation manual

D-TUNE Installation Manual
18
!KEY_INFO<CR> Info
!KEY_CC<CR> Closed Captioning
!KEY_EDS<CR> Extended Data Services
!KEY_SLEEP<CR> Sleep Timer
!PWRON<CR> Power On
!PWROFF<CR> Power Off
?PWR<CR> Query Power status responds with ~PWRON<CR> or
~PWROFF<CR>
!VOLxx<CR> Volume Level Set xx=00 to 64 Responds with ~VOL52<cr>
for volume level 52.
00 is Mute for this command. 52 is zero dB
?VOL<CR> Query Volume Level Responds with ~VOL10<CR> for volume
level 10.
?MCH<CR> Query Main Channel Responds with ~MCH002<CR> for
channel 2.
!MCHxxx<CR> Main TV Channel change !MCH025<CR> for channel 25. xxx =
001 to 125
?MIN<CR> Main Input Query responds with ~MTV<CR> or ~MFM<CR>
!FCHxxxx<CR> FM Channel Selection. !FCH0987<CR> for 98.7fm.
?FCH<CR> Query FM Channel responds with ~FCH0987<CR> for 98.7fm.
?VER<CR> Version Query responds with ~VER 1.00<CR> if version 1.00
was present.
!CC1<CR> Closed Caption 1 selection
!CC2<CR> Closed Caption 2 selection
!CCOFF<CR> Closed Caption Off selection
?CC<CR> Query Closed Caption responds with either ~CC1<CR>,
~CC2<CR>, ~CCOFF<CR>
?AFC<CR> responds with ~AFCxx<CR> xx=2 digit ASCII decimal
equivalent
Bit 7 - AFCWIN 1 = inside AFC Window 0 = Outside AFC Window
Bit 6 - VIFL 1 = Video IF Level High 0 = Video IF Level Low
Bit 5 - FMIFL 1 = fm IF Level High 0 = fm IF Level Low
Bits D4-D1 (AFC4-AFC1) Read the 4 bits separate of the other bits for easy use. eg. (afc & 0x1E)
then shift the bits 1 place to the right. This will give you a value of 0x00 to 0x0F. Follow the chart
below to determine the signal.
Bit4 Bit3 Bit2 Bit1
0 1 1 1 -187.5kHz
0 1 1 0 -162.5kHz
0 1 0 1 -137.5kHz
0 1 0 0 -112.5kHz
0 0 1 1 -87.5kHz
0 0 1 0 -62.5kHz
0 0 0 1 -37.5kHz
0 0 0 0 -12.5kHz
1 1 1 1 +12.5kHz
1 1 1 0 +37.5kHz
1 1 0 1 +62.5kHz
1 1 0 0 +87.5kHz
1 0 1 1 +112.5kHz
1 0 1 0 +137.5kHz
1 0 0 1 +162.5kHz
1 0 0 0 +187.5kHz