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LG Electronics U250 service manual LCD Module NM176CN1 Tovis, Display & LCD FPC Interface

Models: U250

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3. TECHNICAL BRIEF

3.11.7. LCD Module (NM176CN1 : Tovis)

-The NM176CN1 model is a Color TFT Main supplied by Tovis. This LCD Module has a 1.76 inch diagonally measured active display area with 176(RGB)X220 resolution. each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.

* Features

-Display mode(Main LCD) : Normally White, Transmissive TN mode 265K colors.

-LCD Driver IC: NT3916 (NOVATEK).

-16 bit CPU interface Parallel

3.11.8. Display & LCD FPC Interface

LCD module is connected to LCD KEY FPCB with 35 pin (XF2B-3545-31A / OMROM) The LCD module is controlled by 16-bit EBI2 in MSM6245.

 

 

 

LCD CONNECTOR

 

 

 

 

 

 

 

 

 

CN400

 

 

 

 

 

 

 

ICVE21184E150R500FR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

1

 

 

 

 

 

 

 

ICVE21184E150R500FR

 

INOUT_B1 INOUT_A1

 

 

 

35

 

 

LCD_RESET_N

 

8

 

2

 

 

 

 

 

 

 

 

 

INOUT_B2

INOUT_A2

 

 

 

34

 

 

LCD_IF_MODE_0

INOUT_A1

 

INOUT_B1

LCD_CS_N

7

 

3

 

 

 

 

 

 

INOUT_B3

INOUT_A3

 

 

 

33

 

 

LCD_IF_MODE_1

1

 

9

LCD_ADS

6

 

4

 

 

 

 

 

INOUT_A2

 

INOUT_B2

INOUT_B4

INOUT_A4

 

 

 

32

 

 

LCD_VSYNC

2

 

8

EBI2_WE_N

 

 

 

 

 

 

 

 

INOUT_A3

 

INOUT_B3

G2

G1

 

 

 

 

31

 

 

 

3

 

7

EBI2_OE_N

 

 

 

 

 

 

 

INOUT_A4

 

INOUT_B4

 

10

5

 

 

 

 

 

 

 

4

 

6

 

 

 

 

 

30

 

 

 

G1

 

G2

 

 

 

FL400

 

 

 

29

 

 

 

5

10

 

 

ICVE21184E150R500FR

 

 

 

28

 

 

 

FL401

 

 

 

 

 

 

 

 

 

 

9

 

1

 

 

 

27

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INOUT_B1

INOUT_A1

 

 

 

26

 

 

 

 

 

 

 

8

 

2

 

 

 

 

 

 

 

 

 

 

INOUT_B2

INOUT_A2

 

 

 

25

 

 

 

 

 

 

 

7

 

3

 

 

 

 

 

 

 

 

 

 

INOUT_B3

INOUT_A3

 

 

 

24

 

 

 

 

 

 

 

6

 

4

 

 

 

 

 

 

 

 

 

 

INOUT_B4

INOUT_A4

 

 

 

23

 

 

 

 

 

 

 

G2

G1

 

 

 

 

22

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

5

 

 

 

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FL402

 

 

 

20

 

 

 

 

 

 

 

ICVE21184E150R500FR

 

 

 

19

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

 

 

 

 

 

 

INOUT_A1

INOUT_B1

 

 

 

17

 

 

 

 

 

 

 

1

 

9

 

 

 

 

 

 

 

 

 

 

INOUT_A2

INOUT_B2

 

 

 

16

 

 

 

 

 

 

 

2

 

8

 

 

 

 

 

 

 

 

 

 

INOUT_A3

INOUT_B3

 

 

 

15

 

 

 

 

 

 

 

3

 

7

 

 

 

 

 

 

 

 

 

 

INOUT_A4

INOUT_B4

 

 

 

14

 

 

 

 

 

 

 

4

 

6

 

 

 

 

 

 

 

 

 

 

G1

G2

FL403

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

10

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

ICVE21184E150R500FR

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

INOUT_A1

INOUT_B1

 

 

 

7

 

 

 

 

 

 

 

1

 

9

 

 

 

 

 

 

 

 

 

 

INOUT_A2

INOUT_B2

 

 

 

6

 

 

 

 

 

 

 

2

 

8

 

 

 

 

 

 

 

 

 

 

INOUT_A3

INOUT_B3

 

 

 

5

 

 

 

 

 

 

 

3

 

7

 

 

 

 

 

 

 

 

 

 

INOUT_A4

INOUT_B4

 

 

 

4

 

 

 

 

 

 

 

4

G2

6

 

 

 

 

 

 

 

 

 

 

G1

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

10

 

 

 

 

2

 

 

 

 

 

 

 

FL405

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

EVL14K02200

VA410

EVL14K02200

VA409

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C409 0.1u

PLW0501H-LF

D402

INSTPAR

EBI2_DATA(0) EBI2_DATA(1) EBI2_DATA(2) EBI2_DATA(3)

EBI2_DATA(4) EBI2_DATA(5) EBI2_DATA(6) EBI2_DATA(7)

EBI2_DATA(8) EBI2_DATA(9) EBI2_DATA(10) EBI2_DATA(11)

EBI2_DATA(12) EBI2_DATA(13) EBI2_DATA(14) EBI2_DATA(15)

LCD_MAKER_ID

VREG_LCD_2.8V WLED_1 WLED_2 WLED_3

WLED_PWR

Figure 1.23 Interface between LCD Module and MAIN PCB.

- 62 -

Page 60 Page 62
Page 61
Image 61
LG Electronics U250 service manual LCD Module NM176CN1 Tovis, Display & LCD FPC Interface
Page 60 Page 62

U250 specifications

The LG Electronics U250 is a distinguished device known for its cutting-edge features and innovative technologies within the mobile phone sector. Launched as part of LG's effort to cater to a growing demand for functional yet stylish smartphones, the U250 boasts an array of characteristics that appeal to a savvy clientele.

One of the primary features of the U250 is its impressive display. Sporting a vibrant screen that offers excellent color reproduction and clarity, it enhances the user experience for gaming and multimedia consumption. The responsive touchscreen interface allows for seamless navigation, making it user-friendly for all age groups.

The U250 is powered by a robust processor that ensures smooth performance, whether multitasking between applications or running demanding games. With ample RAM, it minimizes lag and enhances the overall operating experience, allowing users to switch effortlessly between tasks.

Photography enthusiasts will appreciate the U250's advanced camera system. It is equipped with a high-resolution primary camera that captures stunning images in various lighting conditions. The inclusion of features like autofocus and image stabilization significantly elevates the quality of photos and videos. Additionally, the front-facing camera is designed for high-quality selfies and video calls, ensuring that users can always stay connected.

The device supports a range of connectivity options, including 4G LTE, Bluetooth, and Wi-Fi, ensuring users can remain connected to the world around them. The integration of NFC technology also enables quick and convenient transactions, particularly useful in a cashless society.

Battery life is another standout characteristic of the U250. With a durable battery, it offers extended usage time, allowing users to go through their day without the constant worry of recharging. Coupled with fast-charging capabilities, it reduces downtime significantly.

The LG U250 runs on an intuitive operating system that provides easy access to a plethora of apps on the platform. Customization options are abundant, allowing users to tailor their device's appearance and functionality to suit their preferences.

In conclusion, the LG Electronics U250 combines striking design with versatile functionality, making it a formidable entry in the smartphone market. With its impressive display, powerful performance, advanced camera features, and strong battery life, the U250 is poised to meet the needs of modern users seeking both style and substance in a mobile device. Whether for work or leisure, this smartphone is designed to enhance everyday life.