Lcd Interface(3-Wire Spi Interface) - LG KP105 Service Manual

3. TECHNICAL BRIEF

3.5 LCD Interface(3-wire SPI interface)

R107
LCD_RESET
R111 47
SSC0_CLK
C121 C122
NA 27p
MLED
W_LED_DRV
LGE Internal Use Only
CN101
1
3
47 5
7
9
MLED
11
MLED2
R113
VA101
13
NA
EVLC5S0250
IMSA-9671S-13Y902
(ENQY0013801)
Figure 3-5-1. LCD Interface
CHARGE PUMP
VBAT
U101
5
IN
C102 C103
1u NA
8
CP
11
EN_SET
C106
R104
4
GND
100K 1u
Figure 3-5-2. Charge pump interface
- 26 -
2V8_VIO
2
4
R110 47
6
8
10
MLED1
12
C123 C124
LCD_ID
14
27p NA
15
VA102
EVL5M02200
AAT3157ITP-T1
10
C1+
C101
1u
9
C1-
7
C2+
C104
1u
6
C2-
1
D1
2
D2
3
D3
12
NC
C108 C109
NA NA
Copyright © 2008 LG Electronics. Inc. All right reserved.
_LCD_CS
R112 47
SSC0_MTSR
C125 C126
27p NA
MLED1
MLED2
Only for training and service purposes