LG HB620 Service Manual

R840 0
MICBIAS
T15 AC22 AC18
LINE_ON
LINE_OP
AC17 W21
HKAIN2 HKAIN3
V19 Y21
HKAIN4 HKAIN5
AB23
HPH_L
W17 AA17
HPH_R
HPH_VREF
AA19
HKAIN1
EAR1ON
AE18
EAR1OP
AF18
AUXOUT
AA18
TP201
EAR_MIC_P VBAT_TEMP RMT_ADC RECEIVER+ RECEIVER- MICBIAS HEADSET_L HEADSET_R OPT_L OPT_R
I2C I/F From MSM
100K R309
1KR307 18K
R308
C327
C312
DNI
12n
C900
DNI
C319
C901
1u
1u
C318 4.7n
R306
18K
C4
OUT4
RIN1
D4
RIN2
D6
D5
RIN3_GPI8
RIN4_RXP
E5
D2
RON
ROP
E1
ROUT
B5
F1
SCLK
E3
SDIN
C1
SPKN
SPKP
A1
G2
GPIO3_BCLK2
G3
GPIO4_DACLRC2
G1
GPIO5_DACDAT2
LIN1
D3
C5
LIN2
LIN3_GPI7
C6
LIN4_RXN
B6
C2
LON
D1
LOP
LOUT
B4
E2
MODE
OUT3
A4
CSB_ADDR
F2
1u
1u
C317
C324
12nC321
R305 1K
4.7nC320
CODEC_I2C_SCL
CODEC_I2C_SDA
EAR_R
EAR_L
SPK_L
SPK_R
HEADSET_L
OPT_L
HEADSET_R
OPT_R
C334
0.01u
FB303
FB302
+VPWR
20R313
20R314
7
S2
6
9
VCC
U304 FSA2268TUMX
8
1A1B0
10
1B1
1
2A
52
2B0
3
2B1
4
GND
S1
51K
R315
SPK_R
SPK_L
SPK_RCV+
SPK_RCV-
RCV_ENRECEIVER+
RECEIVER-
+VPWR
TCC_2.7V_EHI_LCD
62
63
64
65
66
67
68
69
7
70
8
9
G1 G2
5
6
4
2
3
1
CN502
SPK_RCV+
SPK_RCV-
TCC_2.7V_EHI_LCD
+VPWR
C307
22p
67
68
69
7
70
8
9
G1 G2
59
6
60
61
62
63
64
65
66
4
5
3
1
10
11
12
2
CN101
C306
22p
SPK_RCV+
SPK_RCV-
V_CAM_RESET_N
M_CAM_RESET_N
KEY_ROW[3]
OUT1
OUT2
SPK_RCV+
SPK_RCV-
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English