8. Appendix

￿PC Control Codes and Cable Connection

PC Control Codes

Function

Code Data

 

 

 

 

 

 

 

 

 

POWER ON

02H

00H

00H

00H

00H

02H

 

 

 

 

 

POWER OFF

02H

01H

00H

00H

00H

03H

 

 

 

 

 

INPUT SELECT COMPUTER 1

02H

03H

00H

00H

02H

01H

01H

09H

 

 

 

INPUT SELECT COMPUTER 2

02H

03H

00H

00H

02H

01H

02H

0AH

 

 

 

INPUT SELECT VIDEO

02H

03H

00H

00H

02H

01H

06H

0EH

 

 

 

INPUT SELECT S-VIDEO

02H

03H

00H

00H

02H

01H

0BH

13H

 

 

 

INPUT SELECT VIEWER

02H

03H

00H

00H

02H

01H

1FH

27H

 

 

 

PICTURE MUTE ON

02H

10H

00H

00H

00H

12H

 

 

 

 

 

PICTURE MUTE OFF

02H

11H

00H

00H

00H

13H

 

 

 

 

 

SOUND MUTE ON

02H

12H

00H

00H

00H

14H

 

 

 

 

 

SOUND MUTE OFF

02H

13H

00H

00H

00H

15H

 

 

 

 

 

ON SCREEN MUTE ON

02H

14H

00H

00H

00H

16H

 

 

 

 

 

ON SCREEN MUTE OFF

02H

15H

00H

00H

00H

17H

 

 

 

 

 

ASPECT RATIO (4:3 Screen)

 

 

 

 

 

 

 

 

 

 

 

4:3

03H

10H

00H

00H

05H

18H

00H

00H

00H

00H

30H

Letterbox

03H

10H

00H

00H

05H

18H

00H

00H

01H

00H

31H

Widescreen

03H

10H

00H

00H

05H

18H

00H

00H

02H

00H

32H

Crop

03H

10H

00H

00H

05H

18H

00H

00H

03H

00H

33H

ASPECT RATIO (16:9 Screen)

 

 

 

 

 

 

 

 

 

 

 

4:3 Window

03H

10H

00H

00H

05H

18H

00H

00H

00H

00H

30H

Letterbox

03H

10H

00H

00H

05H

18H

00H

00H

01H

00H

31H

Widescreen

03H

10H

00H

00H

05H

18H

00H

00H

02H

00H

32H

4:3 Fill

03H

10H

00H

00H

05H

18H

00H

00H

04H

00H

34H

AUTO ADJUST

02H

0FH

00H

00H

02H

05H

00H

18H

 

 

 

NOTE: Contact your local dealer for a full list of PC Control Codes if needed.

Cable Connection

Communication Protocol

 

Baud rate

38400 bps

Data length

8 bits

Parity

No parity

Stop bit

One bit

X on/off

None

Communications procedure

Full duplex

NOTE: Depending on the equipment, a lower baud rate may be recommended for long cable runs.

131

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NEC LT265, LT245 manual PC Control Codes and Cable Connection, 131

LT245, LT265 specifications

The NEC LT265 and LT245 are two high-performance projectors that cater to business professionals, educators, and multimedia enthusiasts alike. Both models are part of NEC's range of advanced projection solutions, known for delivering superior quality and reliability.

The NEC LT265 is recognized for its impressive brightness of up to 3500 lumens, making it suitable for various lighting conditions, from dimly lit conference rooms to brightly illuminated classrooms. This model uses DLP technology, which enhances image quality through its ability to produce sharper and more vibrant colors. The LT265 features a native XGA resolution of 1024 x 768 pixels, ensuring that fine details in text and images are rendered with clarity.

One of the standout features of the LT265 is its extensive connectivity options. It includes analog and digital inputs, such as VGA, HDMI, and USB, making it compatible with a wide array of devices, including laptops, tablets, and desktop computers. Additionally, the projector offers a built-in 10-watt speaker, which provides sufficient audio output for presentations and video playback without the need for external speakers.

On the other hand, the NEC LT245 is designed for even broader versatility. It boasts a slightly lower brightness at 3000 lumens but maintains a similar XGA resolution. The LT245 excels in its lightweight and portable design, weighing just around 5.5 pounds, making it an excellent choice for professionals on the go. The projector's lamp life is rated at an impressive 4000 hours in standard mode and up to 6000 hours in eco mode, allowing for extended use and reduced maintenance costs.

Both projectors incorporate technologies like keystone correction and digital zoom, facilitating easy setup and adjustment of the projected image. Keystone correction allows users to eliminate distortion when projecting at an angle, ensuring a properly shaped image every time. The LT265 and LT245 also come equipped with a quick-start feature, enabling fast power-up times, which is crucial for time-sensitive presentations.

In conclusion, the NEC LT265 and LT245 stand out for their high-quality projection capabilities, reliability, and user-friendly features. Whether for corporate presentations or educational purposes, these projectors provide exceptional performance that meets the varied needs of today's dynamic environments. Their combination of portability, connectivity, and enhanced imaging technologies positions them as top choices in the competitive projector market.