Only For Training And Service Purposes - LG KC780 Service Manual

3. TECHNICAL BRIEF
VIO_2V62
1u
C211
26M_TVOUT
MCLK_ATI
I2S_CLK
I2S2_TX
I2S_SDO
I2S_WS
I2S2_WA0
FM_SND_L
SND_L
MIC_N
MIC_P
HS_MIC_N
HS_MIC_P
FM_SND_R
SND_R
I2C_SCL
I2C_SDA
SPK_EAR_P
LGE Internal Use Only
VAUX_2V9
VBAT
C205
4.7u
C218 C209
22u
0.1u
A6
A5
B2
F6
G6
R206
F5
DNI
G5
F4
F3
G4
E4
G2
G3
G1
C231 1u D3
C232 1u C5
C233
1u C6
C234 1u
B6
C237 1u D5
C238 1u E5
C239 1u D4
C240 1u D6
R214
F2
100K
F1
E3
E2
Figure 21 Audio amplifier Sub-system IC
VBAT
C254 C255
0.1u 39p
U206
NLAS5223BMNR2G
1
2
SPK_P
3
4
SPK_SEL
5
EAR_P
R227
200K
Figure 22 Audio signal distribute analog switch
Stereo DAC & AMP Stereo DAC & AMP
C212
0.1u
U203 WM8990ECS_RV
B3
AVDD HPGND
A3
HPVDD AGND
E6
SPKVDD DGND
B1
DCVDD SPKGND
DBVDD
MCLK
C3
BCLK VMID
A2
ADCDAT MICBIAS
DACDAT
DACLRC
ADCLRC_GPIO1
D1
LOP
C2
GPIO3_BCLK2 LON
GPIO4_DACLRC2
GPIO5_DACDAT2
B4
LIN1 LOUT
B5
LIN2 ROUT
LIN3_GPI7
LIN4_RXN
A4
OUT3
C4
RIN3_GPI8 OUT4
RIN4_RXP
RIN1
A1
RIN2 SPKP
C1
SPKN
CSB_ADDR
SCLK
E1
SDIN ROP
D2
RON
MODE
10
VCC NO2
9
NO1 COM2
8
COM1 IN2
7
IN1 NC2
6
NC1 GND
- 50 - Copyright © 2008 LG Electronics. Inc. All right reserved.
C222
2.2u
VMIC
HSO_L
HSO_R
SPK_P
SPK_N
C241 C242
47p 47p
SPK_N
SPK_EAR_N
SPK_SEL
EAR_N

Only for training and service purposes