Chassis Description

Power failure detection system

Detection of Power failure

The projector provides a protection circuit to prevent the secondary failure when the power failure, fans failure or tem- perature failure occurs on the projector. The power failure detection lines "MAIN_6V_PF", "MAIN_-5V_PF", etc. are connected to the main power supplies. When the failure occurs, IC801<CPU> receives an error information through the power failure detection lines and turns off the signal "IC_RESET_CPU" output from pin 211 to stop the power supply.

The power failure detection signals are sent to IC4801<I/O expander> and then sent to IC801<CPU>.

Error information table

IC

Pin

Signal Name

Connection

Error Information

 

64

PJ_5V_PF

PJNET S5V

PJNET,

S5V

 

65

-5V_AV_PF

AV S-5V (AV BOARD)

AV,

-5V

 

66

S5V_AV_PF

AV S5V (AV BOARD)

AV,

S5V

 

67

MAIN_-5V_PF

SUB_POWER S-5V (MAIN)

MAIN,

S-5V

 

68

M/A_PF

MOTOR&AUDIO 12V

M/A,

12V

 

69

FAN_PF

FAN 16V

 

FAN,

16V

 

70

SWF_1.2V_PF

SW FPGA 1.2V

SWFPGA,

1.2V

IC4801

71

SWF_2.5V_PF

SW FPGA

2.5V

SWFPGA,

2.5V

TIC81592GPBM

72

VDEC_1.8_PF

CXD3807

1.8V

ANALOG,

1.8V

 

73

FPGA_1.5V_PF

FPGA 1.5V

FPGA,

1.5V

 

74

GAM_15.5V_PF

GAMMA 15.5V

GAMMA,

15.5V

 

77

MAIN_6V_PF

SUB POWER 6V (MAIN)

MAIN,

6V

 

78

MAIN_3.3V_PF

SUB_POWER 3.3V (MAIN)

MAIN,

3.3V

 

80

AD_3.3V_PF

AD9882 3.3V

ANALOG,

3.3V

 

82

AD_5V_PF

AD9882 5V

ANALOG,

5V

 

83

GAM_1.8V_PF

GAMMA 1.8V

GAMMA,

1.8V

 

56

LAMP_FAN_PF

LAMP_IN_FAN 16V

LAMP FAN, 16V

 

 

 

 

 

 

 

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Image 48
Eiki LC-X71 LC-X71L Power failure detection system, Error information table, Pin Signal Name Connection Error Information

LC-X71 LC-X71L specifications

The Eiki LC-X71 and LC-X71L are advanced multimedia projectors designed for a range of applications, from education to corporate environments. Known for their outstanding image quality and impressive clarity, these projectors combine technological innovation with user-friendly features, making them ideal for presentations, lectures, and various visual displays.

One of the defining characteristics of the LC-X71 series is its high brightness output. With 6000 ANSI lumens, these projectors ensure clear and vibrant images, even in well-lit rooms. This level of brightness is complemented by a native XGA resolution (1024 x 768), providing sharp details and vivid colors. The LC-X71L model features a slightly enhanced brightness, making it suitable for larger venues or where ambient light cannot be controlled.

The Eiki LC-X71 and LC-X71L utilize a DLP (Digital Light Processing) technology that enhances color accuracy and contrast. This technology minimizes the visibility of pixels, ensuring smooth images that remain sharp at various viewing distances. Moreover, the projectors incorporate a high contrast ratio, which contributes to deep blacks and bright whites, making them perfect for presentations with complex graphics.

Another noteworthy feature is the flexible connectivity options. The LC-X71 series offers multiple input terminals, including HDMI, VGA, and USB, allowing for seamless integration with various devices, from laptops to video players. This versatility enables users to easily switch between different content sources. Additionally, the projectors support wireless presentation capability, enhancing user convenience and reducing the clutter of cables.

User convenience doesn’t stop at connectivity. The LC-X71 and LC-X71L are designed for easy installation and maintenance. Their lightweight design and compact dimensions facilitate portability, making them easy to move between locations. They also feature a filter-free design, reducing maintenance efforts and ensuring long-term reliability.

In terms of energy efficiency, both models are equipped with Eco Mode, which extends lamp life and reduces power consumption. The lamp life can reach up to 4000 hours, depending on usage, making it a cost-effective solution for prolonged use.

In conclusion, the Eiki LC-X71 and LC-X71L projectors deliver exceptional performance, combining high brightness, versatile connectivity, and user-friendly features. Their technological advancements cater to various needs, ensuring that they stand out in the competitive market of multimedia projectors.