LG KU950 Service Manual page 168

7. Circuit Diagram
1 1 2 2 3 3
A A
B B
OPT_R
OPT_L
R703
R702
NA NA
C C
D D
E E
C722
SPK_R
F F
C723
SPK_L
SPK_AMP_EN
G G
H H
1 1 2 2 3 3
4 4 5 5 6 6
VREG_MMC_3.0V
C700 C701
C702
10u
0.1u +3.0V_AUDIO
0.1u 2012
C707 C708
10u
0.1u
2012
23
RINPUT3
24 16
LINPUT3 LOUT2 SPK_L
R700 1u 25 15
RINPUT2 ROUT2 SPK_R
R701 1u 26 13
C709 1u LINPUT2 LOUT1 EAR_L
27 12
HEADSET_R C710 1u RINPUT1 U701 ROUT1 EAR_R VREG_MMC_3.0V
28 11
HEADSET_L LINPUT1 WM8973LEFL OUT3
1 10
MCLK MCLK MONOOUT
5 29
BCLK BCLK MODE
R705 10K
6 30
DA_OUT DACDAT CSB
7 31
LRCK DACLRC SDIN I2C_SDA
8 32
ADCDAT SCLK I2C_SCL
9
ADCLRC
I2C I/F From MSM
C713 C714
R706
NA NA
10K
DVB-H AUDIO CODEC
+VPWR
C718
1608 R707
1u
C720 NA
0
R708 33K
U702 LM4898ITLX-NOPB FB701
B1 C3
VDD VO2
FB703
0.1u R710 3.9K
C1 A3
IN- VO1
0.1u R711 3.9K
A1 A2
IN+ BYPASS 0.33u
C724
C2 B2
SD_SEL SD_MODE
B3
C728 C729
GND
change 2005.12.28 22p 22p
R714 R713 33K
100K
C733 C734
C731 NA
NA NA
SPEAKER AMP(MONO)
4 4 5 5 6 6
7 7 8 8 9
R704
PS_HOLD
R926
TCXO_EN
HP_AMP_EN
TP607
SPEAKER+
1
SPEAKER-
2
3
1608
4
1u
Changed by: Changed by:
7 7 8 8
- 169 -
9 10 10 11 11
+VPWR +3.0V_AUDIO
U700
1 5
VDD VOUT
2
GND
NA 3 4
CE NC
0
R1114N301D-TR-F
C711 C712
2.2u
0.01u
1608
AUDIO CODEC LDO
HEADPHONE AMP
+3.0V_AUDIO
C715 C716 C717
22p 0.1u
4.7u
C719 1u
EAR_L
1608
C721
NA
FB702 R709
12
PVDD OUTL MIDI_EAR_L
0
11
C1P U703 SVSS
MAX9722BETE FB704 R712
10
PGND OUTR MIDI_EAR_R
0
9
C1N SVDD2 C725 C726
22p 22p
1608
C730
C732 1u
EAR_R
1608
C735
NA
Engineer: Engineer:
LG ELECTRONICS INC.
JH Park
MOBILE HANDSET R&D CENTER
Drawn by: Drawn by:
JH Park DEVELOPMENT LAB 4 DEVELOPMENT GROUP 1
R&D CHK: R&D CHK:
TITLE: TITLE:
DOC CTRL CHK: DOC CTRL CHK:
KU950 Main 1.1
MFG ENGR CHK: MFG ENGR CHK:
Date Changed: Date Changed: Time Changed: Time Changed: QA CHK: QA CHK: REV: REV: Drawing Number: Drawing Number:
JH Park 2006, Sep 08 12:11:00 pm
9 9 10 10 11 11
12 12
A A
B B
C C
D D
E E
F F
G G
H H
Size: Size:
A2 A2
Page: Page: 7/9
12 12