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3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LOW
CONNECT TO U503.E3
EAR_SENSE
FM_ANT
HIGH (detect)
Open
S/W
Close
AGND
R414
1M
R1114D181D
U602
CE
6
2
GND1
5
GND2
4
NC
VDD
1
3
VOUT
D405
PRSB6.8C
30
R417
18p
C499
PRSB6.8C
D406
FB602
FB402
R416
30
2.2K
R413
PRSB6.8C
D403
47p
VREG_MSMP_2.6V
VREG_MSMP_2.6V
C445
33p
C691
270nH
L406
10K
R418
C443
47p
D404
PRSB6.8C
C690
2.2u
C447
3
3p
J401
7620-3_5G-DB1-A
47p
C446
FM_ANT
HS_MIC
HS_MIC_BIAS_EN
TTY_ADC
EAR_SENSE
HSL
HSR
TDMA
Clese to D4
4.87K/1%
C210
0.1u
C204
0.1u
0.1u
C212
C211
0.1u
C203
22u
47p
C205
0.1u
C215
C202
DNI
C216
1u
R206
4
.7K
C209
0.1u
T8
TVDAC_R_SET
TVOUT
U4
C1
WIPER
YM_LR
D1
E1
MICBIAS
E5
B7
MIC1N
MIC1P
A7
MIC2N
E6
MIC2P
D6
HPH_R
G9
G7
HPH_VREF
B6
LINE_L_IN
B5
LINE_L_IP
A8
LINE_ON
B8
LINE_OP
LINE_R_IN
A6
LINE_R_IP
A5
H9
HPH_L
E4
CCOMP
EAR1_ON
B9
A9
EAR1_OP
E7
AUXIN
D7
AUXIP
G8
AUXOUT
C206
DNI
VMIC_BIAS
1u
C214
C213
0.1u
C208
0.1u
FM_L
FM_R
LINE_ON
MIC_1P
HS_MIC
MIC_1N
HPH_L
HPH_R
RCV_N
RCV_P
LINE_OP
33p
C533
P
MIC501
SPM0204HE5-PB-3
G1
2
3
G2
1
O
4
47p
C528
C529
33p
FB503
VMIC_BIAS
MIC_1N
MIC_1P
MSM7201A Block
Head Set Jack Block
Handset main MIC Block
Summary of Contents for CT815
Page 1: ...Date May 2009 Issue 1 0 Service Manual Model CT815 Service Manual CT815 Internal Use Only ...
Page 221: ...Note ...
Page 222: ...Note ...