JED T430 User Manual page 51

Sony IR controlled projectors, (codes A8, A9, AA hex)
This family uses Infrared communications with the projector (at 40Khz) via a stick-on "bug" IR transmitter placed over
the IR window on the back of the projector. This family of projectors all use the 15-bit Sony protocol.
It simulates the IR codes sent by the hand-held remote control. Three drivers are provided, and their use depends on
what level of IR is provided in the projector.
All Sony projector protocol manuals include a 128-entry IR code table, but do NOT specify which projectors are
covered by what codes. JED has tested a VPL-DX120, and found that it only responds the common power
command (15hex, same for On and Off) rather than the discrete codes in the tables, and it only accepts the
rolling "Input Toggle" for source selection and NOT the discrete commands for "Video", "Input A" through
"Input F". Thus we have provided three drivers, the first, simplest one for common power commands and
rolling "Input toggle", and the other two with discrete commands as detailed below.
Code A8: (VPL-DW120, VPL-DX120, VPL-DX140) is the simplest, and must use a
Code 1 keyboard, as there is only provision for an Input Toggle command, (57hex called
"Source" on the Code 1 keyboard). This keyboard also provides volume up and down.
As the "Source" button is pressed once, the on-screen menu appears on the projected
image, and pressing it again (and again) scrolls the selection through provided sources.
Leaving it on a selection for a few seconds switches to that source, and the menu
disappears.
The red LED comes on immediately on power up with no flashes, and the green LED
flashes during warmup and glows continuously in the ON state. Pressing the OFF button
sends the "POWER" IR message once and the red LED blinks during the cool-down
time, then glows steadily. (Ignore the "press again to resume" message.)
The projector will start on the same source channel it was displaying when switched OFF.
The "Code 1" keyboard provides incremental volume Up/Down keys, and the current volume level is shown on the
projected image for a few seconds. The volume has a 0 -> 100 range, and the T440 is programmed to quickly send five
successive Increment or Decrement commands at 200ms intervals, so only 20 presses are needed to cover the range.
Holding a volume key down auto-increments the volume.
The red and green LEDs follow the current state of the projector. If the projector gets out of step with the controller
(e.g. by the projector being ON when the red OFF led is showing), pressing the ON button will get it back into step, and
then pressing OFF once will send the "POWER" IR message, leaving both OFF.
Because there is no feedback serial path to the controller, OPT7 status read-back is not possible. (Freeze and mute are
not supported. Two-button-mute mode is not supported either.) Leave all option switches OFF.
Wiring: See discussion of IR wiring under Epson IR on pages 15 and 16.
Code A9, Code AA: Sony projectors with IR-selection of sources.
(Code A9 has common power on/off code 15hex, Code AA has discrete codes, 2Ehex for On, 2Fhex for Off)
These codes provide more control via IR than code A8 above, in that there are individual buttons for Video, and Input A
through Input F.
The drivers are suitable for use with the Code 0 (just On/Off Computer and Video), and Code 9 (with Volume
Up/Down) Option4 switch can be used.
Input1FunctionCode
Input2FunctionCode
Input3FunctionCode
Input4FunctionCode
* T440: Setting OPT6 switch to ON will use S-Video in place of HDMI:
Input4FunctionCode
Input5FunctionCode
Input6FunctionCode
Input7FunctionCode
Input8FunctionCode
T440 User's manual V096B, © JED Microprocessors Pty Ltd Jan 20
:= $2B; // Computer1
:= $2C; // Computer2
:= $2A; // Video1
:= $2C; // Video2
:= $5F; // Video2
:= $6F; //
:= $70; // USB
:= $71; // LAN
:= $06; //
VGA INPUT A
HDMI INPUT B (on both second Computer and second Video)
VIDEO: RCA *(OPT1 swaps Video1 & Video2)
HDMI INPUT B (on both second Computer and second Video)
S-Video
INPUT C
INPUT D
INPUT E
INPUT F
Code 1 T440 keyboard
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2015 Page 51