Function/ Direction

Hitachi projectors (Code 44 hex, single audio control, Code 45, “by channel” audio)

This family has a compact set of “BE EF” hex commands consistent across the models. Two code groups are provided:

Code 44 is used when there is an audio in for typically each RGB channel but one audio shared by all video inputs. There is only one pair of commands for audio Inc/Dec and the level of all channels is controlled by this one pair of commands. So if a level has been dropped for a RGB channel, the audio level is down for the Video input and needs to be manually adjusted up. These are typically many older models (excluding 3-byte code: CP-X935 to X970.)

Also supported by code 44 are: 3M-MP8746/MP8747/MP8775, 3M-X45, 3M-X55, 3M-X75, 3M-X70, 3M-X80, ELMO EDP-S10, VIEWSONIC PJ510/PJ853/PJ656/PJ552/PJ562/PJ750/PJ862/PJ1165/PJ1172/PJ1065, also InfocusLP800 (Hitachi PJ-TX10 does have Code 44 audio.)

Code 45 is used when there are a number of audio inputs (2, 3 or 4) but these are unallocated to a video channel. These must be manually allocated using the projector menu system to suit the audio sources, cables and connectors on site, but any audio input can typically be allocated to any video/RGB input. Audio channels can be shared or a channel set to have no audio. A typical menu sequence is to go to: Menu -> Advanced menu -> Audio -> Audio, which gives a table of (a variable number of) channel names down the left column, audio inputs by number across the top, and a matrix of buttons which allows one allocation button or an OFF button to be selected per channel. Use the “down” button to select a channel, and the “left” or “right” buttons

to move the “dot” to select that channel’s audio. Move to the “quit” position to save and use the “left” to exit the menu.

Typical Code 45 models are: CP-X2, CP-X6, CP-X200, CP-X205, CP-X251, CP-X253, CP-X245, CP-X255, CP-X256, CP-X260, CP-X265, CP-X268, CP-X300, , CP-X305, CP-X308, CP-X400, CP-X417, CP-X505, CP-X600, CP-X605, CP-X608, ED-X10, ED-X12, ED-X15, ED-X22

VIEWSONIC PJ759/PJ758/PJ760, PJ1158, 3M-X64, 3M-X90

Following have no audio so can use either code: PJ-TX100, TX200, TX300

In the back of each user’s manual is a list of typical channel selection messages, and manuals of most Hitachi projectors are available at: http://www.projectorcentral.com/Hitachi.htm or http://www.hitachi.com/products/personal/av.html

Channel codes are:
Computer1	:= BE + EF + 03 + 06 + 00 + FE + D2 + 01 + 00 + 00 + 20 + 00 + 00;	// Analog RGB 1 DB15
Computer2	:= BE + EF + 03 + 06 + 00 + 3E + D0 + 01 + 00 + 00 + 20 + 04 + 00;	// Analog RGB 2 DB15/ BNC
Computer3	:= BE + EF + 03 + 06 + 00 + 0E + D2 + 01 + 00 + 00 + 20 + 03 + 00;	// Digital/M1D/DVI/HDMI

Video1	:= BE + EF + 03	+ 06	+ 00	+ 6E + D3 + 01 + 00 + 00 + 20 + 01 + 00;	// Composite Video RCA
Video2	:= BE + EF + 03	+ 06	+ 00	+ 9E + D3 + 01 + 00 + 00 + 20 + 02 + 00;	// S-Video
Video3	:= BE + EF + 03	+ 06	+ 00	+ AE + D1 + 01 + 00 + 00 + 20 + 05 + 00;	// Component RCA

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.)

•OPT7 handshake mode and power on panel connection blink codes available.

RS232 connections to Hitachi and 3M, InFocus and Elmo Hitachi-made projectors

These use either a D-sub 15 shrink jack pin connector, female on cable, or a DB9, female on cable. Coms at 19200 8N1:

Ground

Data from T440 to projector

Reply data from proj. to T440

Plus 9 volt CTS/DTR

T440 “projector” Connection

Ground

N/C

Hitachi “Control” Port Connector 15-pin shrink

Pin 6, 7 and 10. (Use all)

Pin 13

Pin 14

N/C

Hitachi “Control” Port Connector, DB9 (some)

Pin 5

Pin 2

Pin 3

N/C

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. CTS is NOT needed.

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