Control Port Functions

Parallel I/O Expander (IC4801, TIC81592GP)

Pin No.

Function Name

Function

Polarity

I/O

1

S3.3V

-

-

-

2

XIN

Clock input (14.7456MHz)

 

I

3

XOUT

 

Open

O

4

GND

-

-

-

5

S3.3V

-

-

 

6

D7

Data Bus 7

 

I/O

7

D6

Data Bus 6

 

I/O

8

D5

Data Bus 5

 

I/O

9

D4

Data Bus 4

 

I/O

10

D3

Data Bus 3

 

I/O

11

D2

Data Bus 2

 

I/O

12

D1

Data Bus 1

 

I/O

13

D0

Data Bus 0

 

I/O

14

A5

Address 5

 

I

15

A4

Address 4

 

I

16

A3

Address 3

 

I

17

A2

Address 2

 

I

18

A1

Address 1

 

I

19

A0

Address 0

 

I

20

GND

-

-

-

21

SH_WE0

Write signal

 

I

22

SH_RD

Read signal

 

I

23

SH_CS6

Chip enable

 

I

24

EXP_RESET

Reset input signal

 

I

25

S3.3V

-

-

-

26

GND

-

-

-

27

MODE0

CPU I/F setting

 

I

28

MODE1

CPU I/F setting

 

I

29

FOCUS+_EX

Focus Up

L: Active, H: Stop

O

30

FOCUS-_EX

Focus Down

L: Active, H: Stop

O

31

ZOOM+_EX

Zoom Up

L: Active, H: Stop

O

32

ZOOM-_EX

Zoom Down

L: Active, H: Stop

O

33

LENS_DOWN_EX

Lens Shift Down

L: Active, H: Stop

O

34

LENS_UP_EX

Lens Shift Up

L: Active, H: Stop

O

35

LENS_BOT

Detection for bottom limit position of lens

L: Bottom end

I

36

LENS_TOP

Detection for top limit position of lens

L: Top end

I

37

POWER_LED

Power LED Dive

L: High, H: Dim

O

38

READY_LED_EX

Ready LED On/Off

L: On, H: Off

O

39

TEMP_LED_EX

Temp LED On/Off

L: On, H: Off

O

40

LAMP_REP_LED_EX

Lamp Replace lED On/Off

L: On, H: Off

O

41

PJ_UPDATE

Write forcibly for PJ-Net

L: Write

O

42

PLLSTB_EX

Reset for CXD3531

 

O

43

SH_PW_0

Output Signal SH to PW

 

O

44

W-SW

Wired RC Detection

L: Wire connected

I

45

SH_CHK_DPRAM

INT Clear for PW

L: Not clear

I

46

(Not used)

 

L fixed

O

47

(Not used)

 

L fixed

O

48

C_READY

 

 

I

49

(Not used)

 

L fixed

O

50

GND

-

-

-

51

S3.3V

-

-

-

52

RC_CTL_0

Selects Rear RC Receiver

L: Rear Select

O

53

RC_CTL_1

Selects Front RC Receiver

L:Front Select

O

54

FPGA_HZ

FPGA Hi-Z (DRAM Reset)

H after Config.

O

55

SH_BSY

Prohibits DRAM Access at same time

L: Busy

O

56

LAMP_FAN_PF

Power Fail Detection LAMP_FAN

L: Error

I

57

MOU/CPU_SW_EX

Air Mouse Select

L: Active Mouse

O

58

RC_RESET_EX

Air Mouse IC Reset

Reset: H>L>L

O

59

RCIDSW1_EX

RC code Switch

1,2,3=LLL: Code1

 

60

RCIDSW2_EX

RC code Switch

1,2,3=HLL:Code2

O

61

RCIDSW3_EX

RC code Switch

1,2,3=HHH:Code8

 

62

PJ_ON_EX

Mouse Data Switch

L: PJ Net

O

63

CNT2_ON_EX

Mouse Data Switch

H: PJ Net

O

64

PJ_5V_PF

Power Fail Detection PJ_5V

L: Error

I

65

-5V_AV_PF

Power Fail Detection -5V_AV

L: Error

I

66

S5V_AV_PF

Power Fail Detection S5V

L: Error

I

66

MAIN_5V_PF

Power Fail Detection MAIN_5V

L: Error

I

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Page 56
Image 56
Eiki LC-X71 LC-X71L service manual Parallel I/O Expander IC4801, TIC81592GP

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.