Only For Training And Service Purposes - LG GT500 Service Manual

1
U301
Main PCB Bottom
2
34
1
TP3
Main PCB Bottom
3
TP5
Camera FPCB
Bottom
Copyright © 2009 LG Electronics. Inc. All right reserved.

Only for training and service purposes

Audio Subsystem
TP2
AMP_I2C_SDA
AMP_I2C_SCL
TP1
CN503
18
17
TP4
VBAT
TP1
A4
C1N
C338 1u A5
C1P
C339 1u D1
EAR_R INA2
C342 1u D2
EAR_L INA1
U301
C343 18000p
C1
MAX9877AEWP_TG45
SPKRP INB2
C344 18000p C2
SPKRN INB1
B2
BIAS
B3
SDA
C3
SCL
1%
R322 15 D4
BEARP RXIN+
R323 15 B4
BEARN RXIN-
1%
C354
1u
Audio Subsystem
TP2
TP3
SYSCLK0
TOUCH_X+
TOUCH_X-
TOUCH_Y+
TOUCH_Y-
TOUCH_Y- : GND line shielding to CN
APP_GP_VGA_SDN
APP_I2C_SDA
APP_I2C_SCL
CI_RES_n
SPK_RCV+
SPK_RCV-
TP5
2
1
CN902
- 95 -
4. TROUBLE SHOOTING
C332
C333 C334
1u 0.1u
1u
A1
HPR
A2
HPL
D5
OUT+
B5
OUT-
CAM_AVDD_2V8 CAM_DVDD_1V8
TP4
CN503
1 34
2 33
3 32
4 31
5 30
6 29
7 28
8 27
9 26
10 25
11 24
12 23
13 22
14 21
15 20
16 19
17 18
ENBY0040301
C523 C525
GB042-34S-H10-E3000
0.1u 0.1u
SPK_RCV+
SPK_RCV-
LGE Internal Use Only
HS_EAR_R
HS_EAR_L
SPK_RCV+
SPK_RCV-
CI_DATA[0]
CI_DATA[1]
CI_DATA[2]
CI_DATA[3]
CI_DATA[4]
CI_DATA[5]
CI_DATA[6]
CI_DATA[7]
CI_HSYNC
CI_VSYNC
CI_PCLK