LG -T300 Service Manual page 84

CIRCUIT
22
CAM_DATA0
23
CAM_DATA1
24
CAM_DATA2
1
CAM_DATA3
2
CAM_DATA4
3
CAM_DATA5
4
CAM_DATA6
5
CAM_DATA7
R10
ACD
P11
AGND
T10
VREF
A16
VSSRF2
T16
NC2
A1
VSSCORE4
T1
NC4
F9
VDDFS
PWRON
TP04
TP04
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
20
D0 PCLK
19
D1 VSYNC
18
D2 HSYNC
CN302
12
D3 STANDBY
11
D4 SCK
10
D5 SDA
9
D6 RESETB
7
D7 MCLK
CAM_IO_1V8
CAM_D_1V5
C109
220n
TP106
1V8_VDD
C318
1u
TP0
I2C_SDA
I2C_SCL
TP03
C329
C336
DNI
15p
R321 22
CAM_PCLK
CAM_VSYNC
CAM_HSYNC
CAM_STANDBY
I2C_SCL
I2C_SDA
TP05
CAM_RESET
R322 51
CAM_MCLK
R320 C335 C328
100K 15p DNI
CAM_A_2V8
TP05
TP01
C337
0.1u
TP01
CAM_A_2V8
FM_LNA_EN
VBAT
6
AGND
7
VIN
8
LDOIN
9
LDO4
10
LDO3
11
LDO2
12
LDO1
C321 C322
C320 C319
2.2u 2.2u
2.2u 2.2u
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4. TROUBLE SHOOTING
CAM_IO_1V8 CAM_D_1V5
TP02 TP06
C334
C331 C333 C330 C332
56p
0.1u 56p 0.1u 56p
TP02
CHARGE PUMP
C323 1u
C324
1u
24
VOUT
23
LED1
U302
22
LED2
21
LED3
20
LED4
19
LED5
18
LED6
C317
1u
I2C_SCL
I2C_SDA
LCD_BL_CTRL
LED_PWM
C316
R313
0.1u
100K
LGE Internal Use Only
TP06
MLED1
MLED2
MLED3
MLED4
MLED5