T440 Users manual V021/B, © JED Microprocessors Pty Ltd Nov 17th 2008 Page 21
Sanyo LCD display/TV (Code 0A hex)
Sanyo LCD flat panel LCD42/47XR7
Channel codes are:
Computer1 := 02 + 'INP:6' + 03; // Select VGA
Computer2 := 02 + 'INP:7' + 03; // Select HDMI-1
Computer3 := 02 + 'INP:8' + 03; // Select HDMI-2
Video1 := 02 + 'INP:1' + 03; // Comp Video/S=Vid (on same channel, S-Vid has priority)
Video2 := 02 + 'INP:3' + 03; // SCART 1 video via adaptor
Video3 := 02 + 'INP:4' + 03; // SCART 2 video via adaptor
Video4 := 02 + 'INP:5' + 03; // SCART 2 s-video via adaptor
Video5 := 02 + 'INP:2' + 03; // Video YPbPr
Video6 := 02 + 'INP:7' + 03; // Select HDMI-1
Video7 := 02 + 'INP:8' + 03; // Select HDMI-2
Video8 := 02 + 'INP:0' + 03; // Select TV
Any one of these codes can be set into Constant:0/Constant:1 for computer codes and Constant:2/Constant:3 for video
codes. (The default is to have Computer1 (above) as the “Computer” channel and Video1 as the “Video” channel.
Setting OPT1 switch ON will swap Video1 and Video2 channels.)
The TV setting uses the following command:
TV := 02 + 'INP:0' + 03; // Select TV
This panel can be used with a number of keyboards:
• With a “Code 9” or “Code A” keyboard, with buttons selecting “Video” and ‘Computer”, with either “Volume”
(code 9) or “Freeze/Mute” (Code A);
• With a “Code B-L” or “Code B-P” keyboard, with buttons selecting “Video” and “Computer1” and “Computer2”
with Volume control keys; or
• With a “Code E” keyboard, with buttons selecting “TV”, “Video” and “Computer”, with TV channel Up/Down
and Volume control keys. The channel commands send absolute channel commands, so the upper and lower limits
must be programmed into Constant:A and Constant:B. (Default is 0 -> 10.)
(Keyboards B and E combine channel keys with “On” keys.)
• OPT7 handshake mode and power on panel connection blink codes available.
RS232 connections to Sanyo LCD
These use a 9-pin-D9 male on the projector, male on cable. Communications is at 9600 baud 8N1.
Function/Direction T440 “projector”
Connection
Sanyo “Control” Port
Connector
Ground Ground 9-pin D-sub pin 5
Data from T440 to projector Tx 9-pin D-sub pin 3 (RXD)
Reply data from projector to T440 Rx 9-pin D-sub pin 2 (TXD)
Plus 9 volt CTS/DTR to projector N/C N/C
3
D-sub 9 male
solder side
4 25 1
9 8 7 6
After installation wiring of any projector to a T440, use a multimeter to check voltages of –9 on BOTH TX and RX pins
in any installation, as described in the troubleshooting part of this manual.
