Lcd Interface(8-Bit Parallel Interface) - LG 410G Service Manual

3.5 LCD Interface(8-bit Parallel interface)

FL301
LCD_D(0:7)
EVRC14S03Q030100R
LCD_D(7)
INOUT_A4
4
LCD_D(6)
INOUT_A3
3
LCD_D(5)
INOUT_A2
2
LCD_D(4)
INOUT_A1
1
9
LCD_D(3)
INOUT_B1
LCD_D(2) 8
INOUT_B2
7
LCD_D(1)
INOUT_B3
6
LCD_D(0)
INOUT_B4
FL303
EVRC14S03Q030100R
FL305
EVRC14S03Q030100R
9
LCD_ADS
INOUT_B1
8
_LCD_WR
INOUT_B2
7
_LCD_MAIN_CS
INOUT_B3
6
_LCD_SUB_CS
INOUT_B4
R308
LCD_ID
47K
R312
100K
SPK_P
SPK_N
EAR_P
EAR_N
MOTOR_P
IND_LED_B
IND_LED_R
VA300
EVLC14S02050
VA301
Signal
_LCD_MAIN_CS
_LCD_SUB_CS
LCD_D(0:7)
LCD_ADS, _LCD_WR
LCD_RESET
VRWLED
MLED1/2
V_EXTH, V_IO
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
INOUT_B4
6
INOUT_B3
7
INOUT_B2
8
INOUT_B1
9
1
INOUT_A1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
1
INOUT_A1
2
INOUT_A2
3
INOUT_A3
4
INOUT_A4
LCD_RESET
CAM_RESET
VA302 VA303
C315 C316
C314
1000p
0.1u 1u
Figure 3-5-1. LCD Interface
This signal enable to access to the driver IC of main LCD.
This signal enable to access to the driver IC of sub LCD.
This signal transfer display data to driver IC.
This signal transfer control signal to driver IC.
This signal makes driver IC to HW default status.
This signal provide power to white LEDs.
This signal be feed back from white LEDs.
This signal provides power to LCD modules.
-19-
3. H/W Circuit Description
V_EXTH V_IO VBAT
CN301
54 1
53 2
52 3
51 4
50 5
49 6
48 7
47 8
46 9
45 10
44 11
43 12
42 13
41 14
I2C_SDA
40 15
I2C_SCL
39 16
38 17
37 18
MLED1
36 19
MLED2
35 20
VRWLED
34 21
33 22
CAM_PWDN
32 23
31 24
30 25
29 26
28 27
C312 C313
0.1u 0.1u
Description
- 23 -
CAM_D(0:7)
FL300
EVRC14S03Q030100R
9 1
CAM_D(7)
INOUT_B1 INOUT_A1
8 2
CAM_D(6)
INOUT_B2 INOUT_A2
7 3 CAM_D(5)
INOUT_B3 INOUT_A3
6 4
CAM_D(4)
INOUT_B4 INOUT_A4
FL302
EVRC14S03Q030100R
9 1
CAM_D(3)
INOUT_B1 INOUT_A1
8 2
CAM_D(2)
INOUT_B2 INOUT_A2
7 3
CAM_D(1)
INOUT_B3 INOUT_A3
6 4 CAM_D(0)
INOUT_B4 INOUT_A4
FL304
EVRC14S03Q030100R
9 1
INOUT_B1 INOUT_A1 CAM_MCLK
8 2
INOUT_B2 INOUT_A2 CAM_PCLK
7 3
INOUT_B3 INOUT_A3 CAM_HS
6 4
INOUT_B4 INOUT_A4 CAM_VS
NA
1V8_CAM
2V8_CAM
C310 C311
DNI DNI
LGE Internal Use Only