Chassis Description

Serial bus control stage

212

LAMP_SWIN

191

SH_LB_UART

167

LAMP_DET

167

MAIN

K8K CN2 LAMP BALLAST

LB_SW

2

LB_SW

ECO

1

ECO

LB_SENS

5

LB_SENS

IC801 CPU <HD6417727>

LB_SH_UART

186

PFC_SW

213

FAN_DRIVE

217,216

SH_SCL/SDA_S3.3V

Always Available

233IC4811

PRESSURE SENSOR

IC802

EEPROM

Q801

Q802

3.3V to 5V

FAN

CONTROL

 

IC1814,16

K8X

 

K16I

 

 

 

TEMP.

 

IC1691

 

 

 

 

 

 

 

SENSOR

 

 

3,5

 

TEMP.

 

SH_SCL/SDA_S5V

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN7_DRIVE

12-15

IC7801

DAC

5

K8F

65

K4F

 

CONTROL

FAN_CONTROL

 

 

4

FAN_CONT1

 

FAN

 

6

 

 

 

 

 

 

 

 

FAN_CONT2

 

 

 

 

 

 

 

 

 

POWER

PHOTO

MAIN

234IC4871

ACCELE. SENSOR

IC401

 

IC501

 

IC531

 

IC561

FAN_DRIVE

4

FAN_DRIVE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC1501

 

IC1531

 

IC1561

PFC_SW

1

PFC_SW

 

 

 

15

GAMMA

 

 

 

 

 

 

 

S&H(R)

 

S&H(G)

 

S&H(B)

IC_RESET

2

IC_RST

 

 

 

14

 

 

 

 

 

 

 

 

 

 

COUPLER

PC603

133,135,136

STB/SCLK/SDATA_GAM

211

IC_RESET

 

 

 

 

 

POWER

 

12

 

 

 

 

 

 

 

 

 

 

 

 

FAILURE

 

 

RC_CPU

 

EXPANDERI/O <TIC81592>

 

 

 

235,236,238

 

IC4801

33,34

 

 

 

 

 

 

 

 

 

 

KEY1-3

 

 

 

31,32

 

 

 

 

 

 

 

 

29,30

 

 

 

 

 

 

 

 

37-40

 

 

 

 

 

 

 

 

52,53

RC_CTL0/1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

210

SYS_SW_CPU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A[1-21]

CPU_AD[1-21]

IC4401

 

 

 

 

 

 

 

 

A[1-12]

 

D[0-15]

 

 

 

D[0-15]

CPU_DT[0-15]

FPGA

 

IC1811

IC1801

IC6731,32,33

 

 

 

<IDT70V24>

 

FLASH

DDR

IC6741,42

 

 

IC4701

RAMDP

 

ROM

MEMORY

 

 

 

 

 

BUFFER

 

 

 

 

 

 

 

 

 

 

12]-A[1SC

 

15]-D[0SC

 

 

 

 

 

15

 

 

 

 

 

A3231

IC281 DAC

 

 

 

 

 

 

 

SYNC

 

 

 

 

IC1305

IC1301,11,21,31

CONT.

 

 

 

 

 

 

 

 

 

 

FLASH

DDR

PW_SCL/SDA_5V

 

 

 

 

 

ROM

MEMORY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5V

 

 

 

 

 

 

 

 

Q281

RC_CTL0/1

 

 

 

 

 

 

Q282

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SUB POWER

CN66A

CN6A

 

 

CN6C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

CN16C

 

 

 

 

 

 

 

 

 

 

 

LENS_U/D

 

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ZOOM_+/-

 

 

 

DRIVE

 

 

 

 

 

DRIVE

 

 

 

 

 

 

 

 

FOCUS_+/-

 

 

 

CONTROL

 

 

 

 

 

 

 

 

 

 

 

 

 

SP_OFF

 

 

 

 

 

 

 

 

 

 

K16U

VOLUME

 

 

 

IC1652

 

 

 

 

5

 

 

 

 

 

 

K8T

 

K16R

AUDIO

 

 

 

 

 

 

K20B

 

 

 

 

CONTROL

 

 

 

SW

 

 

 

K8J

K68A

yellow

 

LED

REPLACE LED

H

red

 

TEMP. LED

 

-On:

 

green

 

READY LED

 

LED

red

 

LAMP LED

 

 

 

KEY1-3

 

KEY SWITCH

CONTROL

VOLUME

IC801

 

 

I/F

 

 

 

 

NETWORK

 

 

 

 

 

 

OPTION

 

 

 

 

 

 

 

 

K8Z

 

 

K87B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K8L

 

 

K2811A

RC FRONT

 

 

 

 

 

2

F_RC

 

 

 

 

FRONT R/C

325,246

 

 

 

 

 

 

 

 

 

PW_SCL/SDA_3V

 

 

 

 

3.3V

 

 

 

 

 

 

 

 

Standby off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

159,64

IC302

IC9201

IC8201

Q8201

 

AV

PC

Q8202

 

EEPROM

A/D

A/D

 

 

 

 

263

M_OUT

 

 

 

264

 

 

 

 

 

 

 

RC_CPU

HDCP_CLK/DATA

R/C

K10P

K40C

 

SELECT

29

R_RC

REAR R/C

 

31

W_RC

WIRED R/C

 

35

RESET_SW

RESET SW

 

41

S_SW

S-VIDEO

 

 

AV_SW1/2

 

 

 

AUDIO_SW1/2

 

IC301 SCAN CONVERTER <PW388>

143,232

 

AUDIO_MUTE

 

 

 

 

 

AUDIO_SW1/2

 

 

 

 

 

 

46

 

SP_MUTE

 

 

 

AD_SCL/SDA

84

 

 

 

 

 

SP_OFF

 

 

 

 

 

 

 

 

 

 

390

 

 

 

 

 

 

DDC_SW

 

 

 

 

 

 

 

 

 

388

 

 

 

 

 

 

 

 

 

 

 

DDC_WRITE

 

 

 

 

 

 

 

158,63

 

 

 

 

 

 

IC8041

 

 

 

 

 

 

 

 

 

 

 

Q301

 

PW_SCL/SDA_DDC_D

 

BUS

 

 

 

 

 

 

Q302

 

 

MULTI-

 

 

 

 

 

 

 

 

 

 

71,72

 

 

 

 

 

 

 

 

 

 

PLEXER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OPTION

 

 

 

 

 

 

 

 

 

 

 

RESISTORS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

398,247

Q303

 

PW_SCL/SDA_DDC_A

 

Q304

 

 

 

 

DDC_SW

H

H

L

H

L

H

L

DDC_WRITE

IC8051,61,71

BUS SW

IC8072

HDCP

NVM

DDC_CLK/DATA

IC8052

AV

NVM

IC8062

DVI

NVM

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DVI_HOT

 

 

DVI-D

 

 

 

 

27,29

 

 

 

 

 

 

 

 

 

 

 

DDC_CLK/DATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

USB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC3801

 

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL PORT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC3803

IC3804

 

 

 

 

 

 

 

 

 

 

RS-S3SC RECEIVER/DRIVER

 

 

K10Q

 

 

K40C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIR MOUSE

 

 

AIR MOUSE

 

 

 

 

 

 

 

R/C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DECODER

 

 

INTERFACE

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

 

 

A_MUTE

 

 

 

 

 

 

 

 

15

 

 

 

 

M_OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D-SUB15

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC5201

 

 

 

 

 

17,19

 

 

H

 

 

 

 

 

 

PC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

K10R

K40E

 

 

 

 

 

 

NVM

 

 

 

A/V

 

IC5202

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

- 45 -

Page 45
Image 45
Eiki LC-X71 LC-X71L service manual Serial bus control stage, Yellow, Red, Green

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.