Hitachi CP-S845W Procedure of getting the Projector status, Example of command error

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Connection to the control signal terminal (continued)

The procedure of getting the Projector status

(1)Computer sends the command '20H'+'yyH' to Projector. (2)Projector reply the command '1xH'+'yyH'+data bytes.

The procedure of setting the Projector status

(1)Computer sends the command '3xH'+'yyH'+data bytes. (2)Projector changes it’s status.

(3)Projector reply the command '1xH'+'yyH'+data bytes which indicate status.

Caution

• (3) data bytes is not always same as (1) data bytes. If projector cannot realize the status of (1)

data bytes, projector set the proper status and reply this new setting data bytes or projector

 

 

reply the error reply '0xH'+'yyH'+data bytes same as (1).

•When only power control (POWER COMMAND) is performed, it takes about 2~140 seconds between sending set code and receiving answering code.

The procedure of default setting the Projector status

(1)Computer sends the command '40H'+'yyH' (2)Projector changes it's status to default setting.

(3)Projector reply the command '1xH'+'yyH'+data bytes which indicate default.

The example of command error

When projector cannot accept command from PC, error code '00H'+'yyH' is sent back.

(in a case when command code '2xH', '3xH' or '4xH'+'yyH'+data is sent from PC to projector)

The example of data error

When projector cannot accept command from PC, error code with data '00H'+'yyH'+data is sent back as it is. (in a case when command code '2xH', '3xH' or '4xH'+'yyH'+data is sent from PC to projector)

When data is longer than required data code length, projector ignores excess data code.

When data is shorter than required data code length, projector sends back error code shown above.

The example of framing error

Projector sends error code '70H'+'70H' up to 10 times at intervals of 1 second until any answer is received.

The interval of command bytes and data bytes

After command code '2xH', '3xH' or '4xH' is sent from PC, if command or data is not sent within 500ms, projector sends back error command '70H'+70H'. If no answer is sent within 1 second from that time, framing error is assumed.

ENGLISH

Caution

• The interval of command bytes and data bytes must be over 1mS and under 500mS. If it is

under 1mS, it may be treat as framing error.

 

•After projector has sent back answer code, when next command is to be sent from PC, allow for an interval of 40ms or more between answer code and other code.

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Contents Operating Guide FeaturesContents OutlineAbout Trademarks Instructions to Users Video signal cablesPower cord Before useIf any abnormality occurs Do not look directly at the lens when Lamp is litDo not install this unit in an unstable place Do not use power supplies other Than that specifiedClass 2 Laser Product Do not stare directly into the laser apertureClean inside the unit at least once two years CleaningHandle the power cord carefully When you are not going to use for a Long timeCleaning the cabinet Do not place this unit where it gets hotVolume Cleaning the lensNames and functions of each part Contents of shipping boxRGB input terminal Remote control sensor Main Power switchAC in socket Video input terminalRemote control transmitter Names and functions of each part How to insert batteriesInstallation Example of the projector and screen installationHow to use foot adjusters For 3 seconds On indicator will light up orangeBasic operations To project the picturePLUG&PLAY To turn off the powerIndicator lights up orange Standby modeMagnifying Function Freeze FunctionOn-screen menus are displayed on the screen Adjustments and functionsTo return to the initial setting Memory functionNumerical display items V POSIT, H Posit etc SET UPHow to use the SET UP menu Bar display items VOLUME, Bright etcAdjustment Item Details of adjustment AUTO-adjustmentAUTO-adjustment Confirm Screen During AUTO-adjustmentMirror Image The menu Image serves of the picture inversionConnection to the RGB signal terminal Connection to the video signal terminalsResolution Standard Display Dots KHz Example of computer signalHorizontal Timing µs Initial set signalsComputer/signal Horizontal Timing µs Computer/signal Vertical Timing linesControl signal terminal Connection to the control signal terminalPS/2 mouse ADB Mac mouseSerial mouse RS232C cable Option Control command tableControl command table CommunicationCommand data Example of command error Procedure of getting the Projector statusProcedure of setting the Projector status Procedure of default setting the Projector statusComputerDesk type Example of system setupConnecting various equipment AC Inlet Computer Note typeCleaning the air filter Air filter Filter coverDo not use with removed air filter Remove the lamp cover Loosen two screws and pull the handle to remove LampLoosen a screw and remove the cover Malfunctioning Install the lamp cover and fix it using screwsReset the lamp time LampAction Indicator displayMessage table On-screen displayWhen you think something wrong Terminal Dimension diagramProduct name Liquid crystal projector Model name CP-S845W Input terminal Input/Output
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