JED T430 User Manual page 2

Input5 := '* 0 IR 017' + 0D;
Input6 := '* 0 IR 029' + 0D;
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, making S-Video the video default. Setting OPT5 will
swap Computer1 and Computer2. Setting OPT4 will allow double- presses on some keyboards.).
Power on projector connection blink codes available;
•
OPT7 handshake mode not available;
•
Source lock must be turned ON in the "Maintenance" menu;
•
Freeze and mute are toggle mode only in these projectors, so 2-yellow-button mute mode is NOT supported;
•
Audio functions are limited to one (sometimes two) audio input(s) and no output to room speakers on most. Use a
•
T441/T461 if audio control is needed;
The Volume level indication bar does NOT appear on the projected image screen UNLESS a valid
•
video/VGA/HDMI image is being shown at the time. Commands are ignored;
Volume processing time is 600ms per increment via RS232, and we have provided auto-incrementing to the
•
Volume Up and Volume Down buttons, but it takes 1 minute (100 x 600ms) to ramp from 0 to 100 audio level.
RS232 connections to 3-Pin DIN Acer projectors
(Note some seem to have DB9 connector. Use a multimeter to determine the connections ... -5 to -9 volts indicates the
projector Tx output, and the other pin (of 2 & 3) is the T440/T430 Tx input to the projector).
Mini-DIN 3 socket on projector. Comms at: 9600 DP8N1 or at 115,200.
Function/Direction
Ground
Data from T440 to projector
Reply data from projector to T440
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.
T440 User's manual V096B, © JED Microprocessors Pty Ltd Jan 20
// Component YPbPr via DB15 HDTV
// Component YPbPr DVI or HDMI via adaptor
T440 "projector"
Connection
Ground
Tx
Rx
Acer Serial Port
Connector
Mini-DIN 3 pin 3 (Gnd)
Mini-DIN 3 pin 1 or 2 (RXD)
Mini-DIN 3 pin 2 or 1 (TXD)
th
2015
1 2
3
Mini-DIN 3
solder side
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