LG HB620 Service Manual page 88

U304 FSA2268TUMX
10
SPK_R 1B0 1A
R313 20 1
RECEIVER+ 1B1 S1
2
SPK_L 2B0 2A
R314 20 3
RECEIVER- 2B1 S2
4
GND VCC
+VPWR
TCC_2.7V_EHI_LCD
SPK_RCV+
SPK_RCV-
C306 C307 V_CAM_RESET_N
22p 22p M_CAM_RESET_N
KEY_ROW[3]
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
C327
C901 1u
HEADSET_L
C319 1u R307
OPT_L
C317 1u R305
OPT_R
C324 1u
HEADSET_R
FB302
8
7
RCV_EN
FB303
5
6
9
+VPWR
C334
0.01u
10
11
12
- 89 -
4. TROUBLE SHOOTING
G2
GPIO3_BCLK2
C321 12n
G3
GPIO4_DACLRC2
DNI G1
GPIO5_DACDAT2
D3
LIN1
C5
LIN2
R308
1K C320 4.7n 18K C6
LIN3_GPI7
B6
LIN4_RXN
R306 18K
1K C318 4.7n
D5
RIN3_GPI8
E5
RIN4_RXP
D4
C312 12n
RIN1
D6
RIN2
F2
C900
CSB_ADDR
DNI
F1
CODEC_I2C_SCL SCLK
E3
CODEC_I2C_SDA SDIN
E2
MODE
I2C I/F From MSM
SPK_RCV+
+VPWR
TCC_2.7V_EHI_LCD
SPK_RCV-
SPK_RCV+
SPK_RCV-
CN101
G1 G2
1 70
2 69
3 68
4 67
5 66
6 65
SPK_RCV+
7 64
SPK_RCV-
8 63
9 62
61
60
59
D1
LOP
C2
LON
B4
LOUT EAR_L
B5
ROUT EAR_R
A4
OUT3
C4
OUT4
A1
SPKP SPK_R
C1
SPKN SPK_L
E1
ROP
D2
RON
CN502
G1 G2
1 70
2 69
3 68
4 67
5 66
6 65
7 64
8 63
9 62
OUT1
OUT2
LGE Internal Use Only