Zenith Z50PX2D Operating Guide - Page 47

External Control Device Setup * All data are transmitted by Hexadecimal code *Two/One part Channel: 6th bit This bit is used in a cable-ready system. *Using physical channel: 5th bit If the channel band is NTSC air or NTSC cable, channel tuning can be done by only physical channel. In this case, using physical channel bit must be low(0). But if the channel band is ATSC air or ATSC cable, there are two cases that physical channel enable or disable. If the physical channel sending is meaningful, you should set this bit low(0). If the physical channel sending is meaningless, you should set this bit high(1). Example) 1. Analog channel: NTSC cable, channel number(35), main picture Command: ma 00 23 xx xx xx xx 01attribute(0x01): main picture, two part(it's not mandatory), using physical channel, NTSC cable 'xx' data: don't care major and minor channel number in case analog channel tuning. 2. Digital channel: ATSC air, channel number(don't know physical channel, major(30), minor(3)), main picture Command: ma 00 xx 00 1E 00 03 22 attribute(0x22): main picture, two part, not using physical channel, ATSC air 'xx' data: don't care analog channel number in case digital channel tuning. 3. Digital channel: ATSC air, channel number(physical(20),major(30), minor(5)), main picture Command: ma 00 14 00 1E 00 05 02 attribute(0x02): main picture, two part, using physical channel, ATSC air. Acknowledgement [a][ ][Set ID][ ][OK][Data0][Data1][Data2][Data3][Data4][Data5][x] [a][ ][Set ID][ ][NG][Data0][x] 25. Input select(Command: x b) (Main Picture Input) G To select input source for TV. Transmission [x][b][][Set ID][][Data][Cr] Data Structure DATA(Hex) INPUT 00 DTV (Antenna) 01 DTV (Cable) 10 Analog (Antenna) 11 Analog (Cable) 20 Video 21 Front Video 40 Component 1 41 Component 2 50 RGB DTV 60 RGB PC 90 HDMI/DVI 23. Channel Add/Del (Command: m b) G To add and delete the channels Transmission [m][b][ ][Set ID][ ][Data][Cr] Data 0: Channel Delete 1: Channel Add Acknowledgement [b][ ][Set ID][ ][OK][Data][x] [b][ ][Set ID][ ][NG][Data][x] Acknowledgement [b][ ][Set ID][ ][OK/NG][Data][x] 24. Key (Command: m c) G To send IR remote key code Transmission [m][c][ ][Set ID][ ][Data][Cr] Data Key code: Refer to page 49. Acknowledgement [c][ ][Set ID][ ][OK][Data][x] Operating Guide 47