Chassis Description

FAN control stage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S16V

Q6603

 

D6614

 

 

 

K66S

1

FN905 FN902

 

 

 

 

 

 

 

 

 

 

Q6608

Q6606

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

IC6603

 

 

 

D6611

K66L

 

 

 

 

 

 

 

 

 

 

FAN_DRIVE

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<FA7701>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

FAN_CONT2

 

 

 

 

 

 

D6612

 

 

 

 

 

 

 

 

 

 

 

Q6604

 

 

 

 

 

 

K66M

1

FN901

 

 

 

 

 

 

 

 

 

 

 

 

Q6601

 

D6616

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q6607

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

IC6601

 

 

 

D6613

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

<FA7701>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT1

 

 

 

P

Q6609

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q6602

 

 

_

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAIL

 

 

 

 

 

 

 

 

SUB POWER BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

6

5

3

 

9

8

K66D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K8D

 

 

 

 

 

 

MAIN BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

213

FAN_DRIVE_CPU

 

IC1871

 

 

 

FAN_DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

BUFFER

 

 

 

 

 

FAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

FAN2

FAN1

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT2

 

 

PF

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN_CONT1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S16V

 

 

 

 

TPFN4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

IC7821

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

Q7821

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN6

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7832

 

 

 

217

SH_SCL_S3V

SH_SCL_S5V

2

 

14

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

IC7841

 

 

 

 

 

 

 

 

 

216

SH_SDA_S3V

SH_SDA_S5V

3

 

 

Q7841

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN3

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7852

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

IC7881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q7881

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TPFN7

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D7892

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

<HD6417727>

CPUMAIN

IC801

 

 

 

 

 

 

IC7801 DAC <M62399>

 

 

IC7861

 

D7831D7851D7891D7871

 

 

D7872 K8PK8OK8NK8M

1

FN903FN904FN906FN907

 

 

 

 

 

 

 

Q7861

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC4801

 

69

 

FAN_DRIVE

IC7802

 

 

 

 

Q7921

 

 

 

 

 

 

 

 

 

 

 

 

FAN_PF

 

 

 

 

 

 

 

 

 

D[0-7], A[0-5]

I/O

 

 

 

 

 

 

 

 

 

 

Q7922

 

 

 

 

 

 

 

 

 

56

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EXPANDER

 

 

 

 

LAMP_FAN_PF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

233

 

 

 

IC4811

 

For ABNORMAL TEMP. DETECT

 

 

 

 

 

 

K8X

 

 

 

 

 

 

 

 

and FAN CONTROL

 

 

 

 

 

 

3,5

 

 

 

 

PRESS_SENS

 

PRESSURE

 

 

 

 

 

 

 

K16I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

1,2

 

1,2

 

 

1,2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

234

 

 

 

 

IC4871

 

 

 

 

 

IC1814

IC1816

 

 

IC1691

 

 

 

 

 

ACCELE_SENS

 

 

 

 

 

 

 

TEMP.

 

TEMP.

 

 

TEMP.

 

 

 

 

 

 

ACCELERATION

 

 

 

 

SENSOR

SENSOR

SENSOR

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR BOARD

 

 

FAN location

 

 

 

 

FN904

 

 

 

 

 

 

 

 

FN903

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

FN906

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FN901

 

 

 

 

FN905

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Intake)

 

 

 

 

(Exhaust)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FN907

 

 

 

 

 

 

 

 

 

 

FN902

 

 

 

 

 

 

 

 

(Cooling)

 

 

 

 

 

 

 

 

(Intake)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 43 -

 

 

 

 

 

 

 

 

 

 

Page 43
Image 43
Eiki LC-X71 LC-X71L service manual FAN control stage, FAN location, FN904 FN903, FN901 FN905, FN907 FN902

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.