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.

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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Hitachi CP-X935W specifications Procedure of getting the Projector status, Procedure of setting the Projector status

CP-X935W specifications

The Hitachi CP-X935W is a versatile and powerful projector designed to meet the demands of both educational and business environments. With its cutting-edge technologies and a range of features, the CP-X935W stands out as an excellent choice for those seeking high-quality visuals and reliable performance.

One of the standout features of the CP-X935W is its impressive brightness rating of 3,300 ANSI lumens. This high level of brightness ensures that presentations and videos remain clear and visible even in well-lit rooms, making it an ideal projector for classrooms, conference rooms, and large venues. The projector also boasts a native WXGA resolution of 1280 x 800 pixels, allowing for crisp and detailed images that enhance the viewing experience.

The CP-X935W utilizes Hitachi's sophisticated DLP technology, which is known for delivering vibrant colors and sharp imagery. This technology minimizes the risk of image distortion and offers a high contrast ratio, which helps to produce deeper blacks and more vivid colors. The projector also features a 1.5x optical zoom lens, providing flexibility in placement without compromising image quality.

In terms of connectivity, the Hitachi CP-X935W offers a wide range of options. It includes HDMI, VGA, and USB ports, allowing users to easily connect laptops, Blu-ray players, and other multimedia devices. The inclusion of wireless presentation capability means that users can project content directly from their mobile devices without the need for cumbersome cables, enhancing the ease of use in dynamic presentation scenarios.

Additionally, the CP-X935W incorporates advanced lamp technology for improved longevity. The lamp life can reach up to 6,000 hours in eco mode, significantly reducing the total cost of ownership and maintenance. This feature is particularly advantageous for educational institutions and businesses with frequent projector use.

User-friendly features such as a remote control, intuitive on-screen menu, and quick start-up time further enhance the overall experience. The projector also supports various image adjustment features, including keystone correction and screen resizing, ensuring a perfect fit for any projection surface.

In conclusion, the Hitachi CP-X935W is a powerful projector that blends advanced technology with user-friendly features. Its high brightness, versatile connectivity options, and exceptional image quality make it a top choice for anyone looking to elevate their presentation experience. Whether in a classroom or a conference room, the CP-X935W is designed to deliver reliable performance and stunning visuals.