Table of Contents

￿ Correcting Horizontal and Vertical Keystone Distortion (Cornerstone)

43

￿ Making Freehand Drawings on a Projected Image (ChalkBoard)

46

￿ Storing Images Displayed on the Projector on the PC card or USB Memory (Capture)

47

￿ Preventing Unauthorized Use of the Projector

48

￿ Using a USB Memory Device or USB Memory Card Reader

53

￿ Operation Using an HTTP Browser

54

￿Using the Projector to Operate a Computer Connected on a Network

(Desktop Control Utility 1.0)

57

5. Using the Viewer

62

￿ Making the Most out of the Viewer Function

63

￿ Operating the Viewer Function from the Projector (playback)

64

￿ Changing Background Logo

70

6. Using On-Screen Menu

71

￿ Using the Menus

72

￿ Menu tree

73

￿ Menu Elements

75

￿ Menu Descriptions & Functions [Source]

76

￿ Menu Descriptions & Functions [Adjust]

79

￿ Menu Descriptions & Functions [Setup]

90

￿ Menu Descriptions & Functions [Information]

112

￿ Menu Descriptions & Functions [Reset]

116

7. Maintenance

117

￿ Cleaning the Cabinet

118

￿ Cleaning the Lens

118

￿ Replacing the Lamp

119

8. Appendix

122

￿ Troubleshooting

123

￿ Specifications

126

￿ Cabinet Dimensions

128

￿ Pin Assignments of D-Sub COMPUTER 1/2 Input Connector

129

￿ Compatible Input Signal List

130

￿ PC Control Codes and Cable Connection

131

￿ Using Software Keyboard

132

￿ Troubleshooting Check List

133

￿ TravelCare Guide

135

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NEC LT245, LT265 manual Maintenance

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.