User`s manual

T460/461/T462 Manual 26th Sept 2008. V2.79 Part B © JED Microprocessors Pty Ltd 42
U7: Turn OFF the “Auto Source” function in the projector. Function does operate correctly in U7.
Also, turn off “Auto power Off”. Instead use the Run Timer in the T460.
The Plus U5 T460 interface supports Mute On/Mute Off keyboards and Freeze On/Off and Mute On/Off keyboards. The Plus
U5/U7 do NOT have an audio output, so while the U5 does have remote control of the projector audio control from the T460,
the 5cm loudspeaker is hardly sufficient to be heard in a classroom. We suggest the use of the T461 to control the audio output.
We also suggest you select “Reply mode” when selection of U5 projectors in made, as the Mute and Freeze commands
are toggle commands, and the T460 needs to poll the U5 for the current status.
There is provision for support of the Aspect Ratio control commands. A dummy channel “4:3/16:9/Zm.” allows moving
between 4:3 and 16:9 and Zoom screen images. Set up this on, say, channel 6, and move to it with the ON key to increment the
states.
RS232 connections to (all) Plus projectors
U2 and U4 use a short cable with a 9-pin-D9 female one end and a 4-pin USB-style on the other. This cable is supplied by
PLUS, and the hole to plug it in is very small, on the rear terminal panel covered with a stick-on silver plastic film.
U5 has a standard D9 male connector on the rear.
U7 has 9-pin mini-DIN. Connections are the same for all four ranges.
Function/Direction T460
“projector”
Connection
Plus “Control”
Port Connector
9-pin D-sub
Plus “Control”
Port Connector
mini-DIN 9 pin
Ground Ground 9-pin D-sub pin 5 9pin mini-DIN Pin 4
Data from T460 to projector Tx 9-pin D-sub pin 3
(RXD)
9-pin mini-DIN,
Pin 1 (RXD)
Reply data from projector to T460 Rx 9-pin D-sub pin 2
(TXD)
9-pin mini-DIN,
Pin 7 TXD)
Plus 9 volt CTS/DTR to projector N/C N/C N/C
Mini-DIN 9
solder side
6 87
4 5 6
21
3
After installation wiring of any projector to a T460, 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.
Projection design: See Christie/Projectiondesign earlier in this manual.
Proxima projector: DP6150/55, ASK C20/C60/C85/C90/C95/C100/C105,
InFocus LP280/290 projectors
Note: A strange behaviour in Proxima/ASK projectors has been discovered where the audio does not return to a preset
level after a power-down, on a subsequent power-up, unless VOL is taken to 0 and back up !!?? Rev 1.25 does this
automatically and fixes the problem. It is important to set the projector into remote control mode at 9600 by deselecting the
mouse. This can be done using the remote control or the push keys on top of the projector, and using the following sequence:
1. Turn on projector;
2. Press the MENU key;
3. Use the DOWN ARROW to move down to the FEATURES right arrow;
4. Press SELECT;
5. Use the DOWN ARROW to move down to the SERIAL MOUSE;
6. Use the SELECT key to toggle the “tick” in the square alongside this label to be off.
It is also advisable to turn off the “source search” feature, so those channels don’t change if multiple sources are connected and
the one being used drops out (eg. during VCR fast winding). Use the following sequence:
1. Press the MENU button;
2. Use the DOWN ARROW to move down to the FEATURES right arrow;
3. Press SELECT;