LG -P990 Service Manual page 182

V_POWERRAIL
3.5Phi EARJACK Detect
EARJACK_SENSE
LGE Internal Use Only
VCC_AUDIO_1V8 VCC_IO_1V8 VCC_AUDIO_1V8
FB1001
Wolfson WM8994
V_POWERRAIL
C1011
VCC_AUDIO_1V8
4.7u
WM_LDO_EN
VCC_AUDIO_1V8
DAP1_SCLK
DAP1_FS
DAP1_DOUT
DAP1_DIN
AUDIO_INT_N
DAP2_SCLK
DAP2_FS
DAP2_DOUT
DAP2_DIN
FM_I2S_CLK
FM_I2S_FSYNC
FM_I2S_DIN
FM_I2S_DOUT
MIC1P
FM_AUDIO_L
MIC2P
FM_AUDIO_R
50PIN_EJ_MIC
VCC_IO_1V8
Q1001
50PIN_EAR_SENSE
C1035
0.1u
FB1002
?
E9 D6
LDO1VDD AGND1
D9 A1
AVDD1 SPKGND1
B2 C1
SPKVDD1 SPKGND2
C2 H9
SPKVDD2 CPGND
D8 E2
AVDD2 DGND
G9 F7
CPVDD HP2GND
F1
DCVDD
D2 F3
DBVDD SDA GEN2_I2C_SDA
C1013
D1 H1
C1014 LDO2VDD SCLK GEN2_I2C_SCL
1u
G2 R1003 100K
CS/ADDR
1u
A4 R1004 100K
CIFMODE
D4 D3 TP1001
LDO1ENA MCLK1 AUDIO_MCLK
D5 E1
LDO2ENA GPIO2/MCLK2 AUDIO_MCLK2
E6 A3
R1022 DNI
VREFC SPKMODE VCC_AUDIO_1V8
A5
REFFGND
C1015
0.1u
A7
MICBIAS1 MICBIAS
C6 B6
TP1002 DMICCLCK MICBIAS2
EJ_MICBIAS
C9 C1018 4.7u
U1001 VMIDC
C1016 C1017
G1
BCLK1
E3 E7 4.7u 4.7u
LRCLK1 AGND2
E4 E8
DACDAT1 AGND3
F2 F9
RCV_N
ADCDAT1 HPOUT2N
G3 F8 RCV Path Added
ADCLGCLK/GPIO1 HPOUT2P RCV_P
H2 G5
TP1004 GPIO3/BCLK2 HPOUT1FB 0 R1016 EAR_GND
F4 G6
TP1005 GPIO4/LRCLK2 HPOUT1R
50PIN_EAR_R
H3 H6
TP1006 GPIO5/DACDAT2 HPOUT1L
50PIN_EAR_L
E5
TP1007
GPIO7/ADCDAT2
G4
GPIO6/ADCDLRCLK2 C1019 0.1u R1010 20
F6
GPIO11/BCLK3 C1020 0.1u R1011 20
H5 C5
GPIO10/LRCLK3 LINEOUT1N
H4 B5
GPIO8/DACDAT3 LINEOUT1P
F5 C4
GPIO9/ADCDAT3 LINEOUT2N
B4
LINEOUT2P
A6
LINEOUTFB
C1022 1u D7
IN1LN
C8 B1
C1023 1u
IN1LP SPKOUTLN SPK_N
A2
SPKOUTLP SPK_P
B9
IN2LN/DMICDAT1
B8 C3
TP1008 IN2LP/VRXN SPKOUTRN
C1033 C1034
B3
SPKOUTRP
DNI DNI
C1024 1u B7
IN1RN
C1029 1u C7 G8
1N1RP CPCA
H8 C1026 2.2u
CPCB
C1025 1u A9 H7
R1014 10K
IN2RN/DMICDAT2 CPVOUTN
A8 G7
2.2u
IN2RP/VRXP CPVOUTP C1030
TP1009
2.2u
C1031
R1015 10K
- 182 -
EJ_MICBIAS Added
3.5Phi MIC Detect
EJ_MICBIAS
C1027 C1028
47p
1u
C1032 120p
50PIN_EJ_MIC
HOOK_ADC 0 R1017
0 R1023
HOOK_DET
Copyright © 2011 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
Only for training and service purposes