LG KM710 Service Manual page 115

7. CIRCUIT DIAGRAM
1 2
A
Stereo DAC & AMP
DAC_2V8
VBAT
VRIO
C601 C600 C602
10u
0.1u 2.2u
U602
1u
A6
C603
AVDD
A5
HPVDD
B2
SPKVDD
F6
DCVDD
G6
DBVDD
B
F5
CODEC_MCLK MCLK
G5
CODEC_BCLK BCLK
F4
CODEC_DIN ADCDAT
F3
CODEC_DOUT DACDAT
G4
CODEC_LRC DACLRC
E4
ADCLRC_GPIO1
G2
GPIO3_BCLK2
G3
GPIO4_DACLRC2
G1
GPIO5_DACDAT2
C610 1u D3
MM_MICP LIN1
C612 1u C5
MM_MICN LIN2
C614
1u C6
RADIO_L LIN3_GPI7
C615 0.1u B6
SPKPA LIN4_RXN
C616 1u D5
RADIO_R RIN3_GPI8
C617 0.1u E5
SPKNA RIN4_RXP
C618 1u D4
HSMICIP RIN1
D6
RIN2
C
F2
CSB_ADDR
F1
I2C_SCL SCLK
E3
I2C_SDA SDIN
E2
MODE
R603
100K
D
MICBIAS
C628
27p
C630 0.1u
MIC_P
DNI
C629
C632 0.1u
MIC_N
C635 C633 C636
C634
27p 27p 27p
27p
E
1 2
LGE Internal Use Only
3 4 5
WM8990ECS_RV
B3
HPGND
A3
AGND
E6
DGND
B1
SPKGND
C3
VMID
A2
MICBIAS
C607
C604
4.7u
0.1u
D1
LOP
C2
LON
C609 100u
MM_HSOL
B4
LOUT
B5
ROUT
C613 100u
MM_HSOR
A4
OUT3
C4 3.5 PI EAR-MIC
OUT4
A1
SPKP SPK_AMPP
C1
SPKN
C621
100p
SPK_AMPN
E1
ROP C622 C623
D2 R602
RON 47p 47p RCV_P
R604
RCV_N
MIC MIC
L602
100nH
L603
MIC600
1
100nH C631
OUT
2
L604 27p G1
3
G2
4
100nH
G3
5
PWR
6
VA600 G4
C637 C638
EVLC14S02050 100p 10u
SPM0204LE5-QB
3 4 5
6 7
CODEC AUDIO POWER
VBAT DAC_2V8
U600 R1114D281D-TR-F
1 3
VDD VOUT
4 2
NC GND1
6 5
DAC_EN CE GND2
Discharge R
1u
R600 C605
C606
100K 1u
SPEAKER & RECEIVER 18P HEADSET SWITCH
VBAT
C620
U603
27p
FSA2268TUMX
10 L600 100nH 10 8
1B0 1A SPK_RCV_P ABB_HSOL
C624
1 7
100p SPK_AMPP 1B1 S1 SPK_EN MM_HSOL
10 L601 100nH 2 5
2B0 2A SPK_RCV_N ABB_HSOR
3 6
C625 SPK_AMPN 2B1 S2 MM_HSOR
27p
4 9
GND VCC
C626
R606
1u
100K
- 116 -
8 9 10
CAMCORDING MIC SWITCH
MM_2V8
U601 FSA2268TUMX
10 8
ABB_MICP 1B0 1A MIC_P
1 7
MM_MICP 1B1 S1
2 5
ABB_MICN 2B0 2A MIC_N
3 6
MM_MICN 2B1 S2 CAM_RECORD_SEL
4 9 From TC
GND VCC
C608 R601
0.1u 100K
( MM HS | ABB HS )
MM_2V8
U604
FSA2268TUMX
10 8
1B0 1A HSOUTL
1 7
1B1 S1
2 5
2B0 2A HSOUTR
3 6
From DBB for popup noise
2B1 S2 HS_PATH_SEL
4 9
GND VCC
R605 100K
LCD_ID
C627
0.1u
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D