LG KM500 Service Manual page 113

7. CIRCUIT DIAGRAM
1 2
A
DAC_2V8
VBAT
VRIO
C600 C603
4.7u 0.1u
C604 C601
1u 10u
10n
U602
C602
A6
AVDD
A5
HPVDD
B2
SPKVDD
F6
DCVDD
G6
DBVDD
F5
CODEC_MCLK MCLK
G5
CODEC_BCLK BCLK
F4
CODEC_DIN ADCDAT
F3
CODEC_DOUT DACDAT
G4
CODEC_LRC DACLRC
B E4
ADCLRC_GPIO1
G2
GPIO3_BCLK2
G3
GPIO4_DACLRC2
G1
GPIO5_DACDAT2
C612 0.1u D3
MICP LIN1
C613 0.1u C5
MICN LIN2
C615
0.1u
C6
RADIO_L LIN3_GPI7
C616 B6
0.1u
SPKPA LIN4_RXN
C618 0.1u D5
RADIO_R RIN3_GPI8
C619 E5
0.1u
SPKNA RIN4_RXP
C620 0.1u D4
HSMICIP RIN1
D6
RIN2
F2
CSB_ADDR
F1
I2C_SCL
SCLK
E3
I2C_SDA SDIN
E2
C MODE
MIC MIC
D
MICBIAS
C627
27p
MIC_P C629 0.1u
MIC_N
C630 0.1u
C632
27p
E
1 2
LGE Internal Use Only
3 4 5
Stereo DAC & AMP Stereo DAC & AMP
WM8990ECS_RV
B3
HPGND
A3
AGND
E6
DGND C606
B1
SPKGND 0.1u
C3
VMID
A2
MICBIAS
D1
LOP
C2
LON
C636 100u
HS_LOUT3
B4
LOUT
B5
ROUT
C637 100u
HS_ROUT4
C611 100u
HS_LOUT
A4
OUT3
C4
OUT4 C614 100u
HS_ROUT
A1
SPKP SPK_AMPP
C1
SPKN C639
100p
SPK_AMPN
E1
ROP C622 C623
D2
RON 47pF 47pF
L603
MIC600
1
100nH C638
OUT
2
L604 27p G1
3
G2
4
100nH
G3
5
PWR
6
C633 G4
VA600
27p
EVLC14S02050
C635
SPM0204LE5-QB
10u
C634
100p
3 4 5
6 7
CODEC AUDIO POWER
VBAT DAC_2V8
U600 R1114D301D-TR-F
1 3
VDD VOUT
4 2
NC GND1
6 5
DAC_EN CE GND2
1u 1u
C607 C608
SPEAKER & RECEIVER
( DUAL MODE )
27p
C617
R605
L600 100nH
RCV_P
10 C621
100p
R607
L601 100nH
RCV_N
10
C624
27p
18P HEADSET SWITCH
( Voice | MP3 )
HSOL
HS_LOUT3
HSOR
HS_ROUT4
- 114 -
8 9 10
CAMCORDING MIC SWITCH
MM_2V8
U601 FSA2268TUMX
10 8
MICP 1B0 1A MIC_P
1 7
MIC_ABB_P 1B1 S1 CAM_RECORD_SEL
2 5
MICN 2B0 2A MIC_N
3 6
MIC_ABB_N 2B1 S2
4 9
GND VCC
VBAT
U603
FSA2268TUMX
10 8
1B0 1A SPK_RCV_P
1 7
SPK_AMPP 1B1 S1 SPK_EN
2 5
2B0 2A SPK_RCV_N
3 6
SPK_AMPN 2B1 S2
4 9
GND VCC
C625
R609
1u
100K
MM_2V8
U604
FSA2268TUMX
10 8
1B0 1A HSOUTL
1 7
1B1 S1
2 5
2B0 2A HSOUTR
3 6
2B1 S2 HS_PATH_SEL
4 9
GND VCC
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
A
B
C
D