Zenith Z50PT320 - Channel and Key Command Details

Data05:
Thetableaboveliststhebinarycodewhichmustbe
convertedtoHexadecimalbeforesending.Forexample:
ThebinarycodetotunethesubsourcetoanNTSC
cablechannelis"10000001",whichtranslatesto"81"
inHex.
*7thbit:Forwhichsourcedoyouwanttochangethe
channel.
*6th bit: Use a two part or one part channel. Most cases
just use 0 since it's ignored when using NTSC.
* 5th bit: Use 0 with NTSC since it can only use the phys-
ical channel number. Normally use 1 for ATSC since most
times it doesn't matter what the physical number is.
* 4th bit: Set to 0.
* 3-0 bits: Choose signal type.
22. Channel Add/Del (Command: m b)
To add and delete the channels.
TransmisSiOn [m] [b] [ ][Set iD][ ][Data][Cr]
Data 00: Channel Delete Data 01 : Channel Add
Acknowiedgemen_ [b][] [set ID][ ] [0K/NG] [Data] [x]
23. Key (Command: m c)
To send IR remote key code.
Transmission [m] [c][ ] [Set !D][ ][Data] [Cr] ...............
p.8Z
Acknowledgement [€] [ ] [Set iD] [ ] [0KING] [Data] [x]
* Tune Command Examples:
1. Tune to the analog (NTSC) cable channel 35.
Data 00 = Physical of 35 = 23
Data 01 & 02 = No Major = 00 00
Data 03 & 04 = No Minor = 00 00
Data 05 = 0000 0001 in binary = 01
Total = ma 00 23 00 00 00 00 01
2. Tune to the digital (ATSC) local channel 30-3.
Data 00 = Don't know Physical = 00
Data 01 & 02 = Major is 30 = 00 1E
Data 03 & 04 = Minor is 3 = 00 03
Data 05 = 0010 0010 in binary = 22
Total = ma 00 00 00 1E 00 03 22
ACknOWledgement[a][] [Set !D][] [OK] [DataO0] [Data01 ]
[Data02] [Data03] [Data04] [X] [a][] [Set !D] ............
[] [NG] [DataO0] [x] .............
-0
-0
I-I1
Z
E3
X
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